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Air cooler scoop hits curbs - Click HERE for Original Thread
clydesdale
I don't know what the technical name for this part is. It is a metal air scoop under the engine that directs air over some cooling fins. It hangs down far enough to get caught on parking lot deviders. We've banged ours twice and severly bent it all out of shape. I removed it and beat it back into shape as best I could but it is really thick steel and is difficult to bend back. I need to stop by the dealer this week and order up a new one I guess. Anyone had this problem yet?
esemes
i know whatcha mean....

i havent hit mine (yet) on the typical wheel stop (or landscape timber-ties), but, i do think it hangs a bit too low......


it almost looks like an afterthought...... not well integrated into the front end fascia
clydesdale
Thats the picture! Thanks, my discriptive powers are pretty limited. I'm not sure what it directs air to - it may be the transmission cooler? I agree that it appears to be an afterthought - probably just a quick fix to a cooling problem? I wonder if the '04's are the same?
rtking
That scoop directs air to the CVT transmission's cooling fins. I just wonder why Nissan chose to do this versus installing a heavy duty transmission cooler on the car? Maybe the CVT fluid (with its rubber particles and what not) doesn't flow well through a radiator-type cooling device?

-Bob K
dmako
Nissan should have either put sometype of protection like a mini-brush guard there, or made the scoop out of rubber so that it would bend back to shape.
esemes
quote:
Originally posted by dmako
Nissan should have either put sometype of protection like a mini-brush guard there, or made the scoop out of rubber so that it would bend back to shape.


how about working it into the lower grille/shroud area instead of below the bumper altogether??
Enforcer
CVT Wind Defelector.
esemes
quote:
Originally posted by Enforcer
CVT Wind Defelector.


by this pic, it appears the scoop does little if anything....


air will flow underneath regardless....

since its not angled upward, all the 'scoop' (loosely) will do is cut thru the foil..... right???

i dunno
Enforcer
See how the back edge rolls up? I think that will create a pressure bubble at the bottom of the cavity and help push the air at the top over the fins. But I'm not an aerodynamicist.
esemes
quote:
Originally posted by Enforcer
See how the back edge rolls up? I think that will create a pressure bubble at the bottom of the cavity and help push the air at the top over the fins. But I'm not an aerodynamicist.



good point....

i didnt see that............

at best though, it will make for turbulance there..... not as much controlled or 'directed' airflow.........

((im no specialist at all myself, either).... just an observationist...lol

SMS
hfelknor
Phew!
Man that is Ugly.

Built a dirt car from scratch once that had better workmanship.

Almost all Kit cars look better......even underneith.

I'll bet that that was a last minute add on.
Why? Disturbing numbers at the end of long range testing?
Really ugly.

I can see where the guys are banging on that thing in Parking lots.....
Thanks clydesdale for bringing the subject up.

Please don't show anymore pix like that.:D



Homer



And yes, 'force, I DO appreciate your pix, even when they show stuff I'ld rather not know about.:1:
copperstreak
Ok Enforcer, I just wanna know about your garage (note the lift and shop in the background, seemingly just to shoot this pic!!?!?) You have now blown your cover as a Secret Nissan Engineering Operative.:D
Enforcer
LOL!

I knew about this before I bought it. I took a bunch of underside pictures of the Z and MO at the dealer when I bought them. Have posted the MO pics in the gallery. Pics of Z underside are on my website. The dealer mechanics thought I was nuts. Told them I wanted to take pics of the underside for my website. They just shook their heads and said OK :toothless. That is one of the reasons you don't want to take the MO off road.
urbanias
While parking at a restaurant yesterday, I was surprised to hear mine hit the concrete car stop. The car stop didn't seem to be exceptionally tall, but it made an awful scraping sound. It caused me to be more aware of how low this transmission guard is and I'll have to be more careful when parking.
Eric L.
Perhaps the "scoop" underneath the car is not to direct air to the cooling fins but rather to protect the bottom of the transmission pan from damage. Would you rather have high curbs scrape your transmission pan? Personally I do not mind the ugly scoop since it seems to be doing its job.

As for an aftermarket transmission cooler, I wish someone else here installed one already. I had one in my Maxima and it performed great. I would install one in the Murano if I knew that the CVT wasn't affected.
jaak
I whacked mine once and now it's slightly angled down. Should make it even more effective at cooling the CVT! I've thought about taking it off and straightening it out, but, I'd probably just whack it again at some point.

Just watch those curbs!
clydesdale
Jaak ... My scoop is bent down and pushed back so much that it effectively closes off the back. Looking at the photo that Enforcer posted you see that there is about an inch gap at the rear of the scoop. Now mine is closed off and I suspect this greatly reduces its effectiveness. I'm going to stop by the dealer soon and ask them if they know its actual purpose - air scoop or fin protector - and probably order up a new one. I don't suppose this would be a warrenty item?
esemes
for some reason, i cannot find this part on the parts list or the service manual.............


anyone??
jaak
quote:
Originally posted by clydesdale
Jaak ... My scoop is bent down and pushed back so much that it effectively closes off the back. Looking at the photo that Enforcer posted you see that there is about an inch gap at the rear of the scoop. Now mine is closed off and I suspect this greatly reduces its effectiveness. I'm going to stop by the dealer soon and ask them if they know its actual purpose - air scoop or fin protector - and probably order up a new one. I don't suppose this would be a warrenty item?


You could unbolt it and hammer it back into shape, then stick it back on. Considering it will probably get nailed again at some point, why buy a new one to smash up?

Mine's just bent down about half an inch at the front, so nothing major. I could probably take it off and throw it in with the spare tire for all the difference it would make, except in the really hot weather... My understanding is that it helps keep the CVT cool when it's really stinkin' hot out.
lmuscella
What do you think about just removing it. Shouldn't you get a warning light if the CVT starts heating up. This summer I was stuck in traffic for 3 hours with the outside temp at 95 AC blasting and I never over heated. I'm not sure the scoop does anything.
Eric L.
quote:
Originally posted by lmuscella
What do you think about just removing it. Shouldn't you get a warning light if the CVT starts heating up. This summer I was stuck in traffic for 3 hours with the outside temp at 95 AC blasting and I never over heated. I'm not sure the scoop does anything.


I think the scoop is there as a shield to protect the bottom of the CVT oil pan from damage.
Gonzo
quote:
Originally posted by lmuscella
What do you think about just removing it. Shouldn't you get a warning light if the CVT starts heating up. This summer I was stuck in traffic for 3 hours with the outside temp at 95 AC blasting and I never over heated. I'm not sure the scoop does anything.


Remember when sitting in traffic the tranny is doing much and the heat will be lower than say ridding on a highway or pulling heavy loads.

One thing about the scoop, it does direct air to the cooling fins. That extra 1" space reminds me of an aircraft I flew. The air inlet into the turbine had a scoop. When you flew in heavy precipitations you would open this "trap" door at the back of the scoop. This door was located just prior to the bend in the scoop itself. This would cause heaver items (such as water) to exit the back of the scope while the air being less dense, less weight, to continue into the engine.

Perhaps the one inch gap is to prevent anything heavier than air from being directed to the cooling fins?

I would be paranoid about not having it installed and that is was in good condition. Having a warm tranny may not cuase the CVT light to come on, but always operating in above normal temps can't be a good long term thing either.
lmuscella
[QUOTE]Originally posted by Gonzo
[B]

Remember when sitting in traffic the tranny is doing much and the heat will be lower than say ridding on a highway or pulling heavy loads.

The CVT needs a way to dissipate the heat even when it is in drive and just sitting there. It is still a load on the trans. I just don't see the sheild as doing much and feel it is there more for protection. If we get deep snow this year I would think about taking it off because that would definetly drag.
jaak
Naw, you don't even notice it in the deep snow....

I bet it could be removed. It's not designed like a sheild, it's designed to deflect air up. The only problem with removal, is if something happens to your CVT, related or not, you'll want it on there for warranty inspection.
MURANOSAURUS
I just took delivery of my 2003 Murano Thursday night. I checked for this scoop today, and mine is actually made of plastic, and looks to be smaller in size than the one in Enforcer's picture. My Murano was build in July, according to the sticker in my driver's side door opening.
Eric L.
quote:
Originally posted by MURANOSAURUS
I just took delivery of my 2003 Murano Thursday night. I checked for this scoop today, and mine is actually made of plastic, and looks to be smaller in size than the one in Enforcer's picture. My Murano was build in July, according to the sticker in my driver's side door opening.


Hmmm I wonder why Nissan made the change. My CVT scoop is made from metal, and build date 4/03.
jaak
Mines metal too, but the build is Oct 2002.

They probably changed to plastic so it wouldn't damage the transmission if it was hit really hard. I'll have to have a look at the new one! I wonder how much they want for it?
Kris
jaak,

let us know as i would definitely change it.........

The original looks like an after thought.............i do not like it. It upsets the clean look of the car..........
floaty98
what would happen if there is a bunch of snow and i go driving in it, wouldnt that CVT scoop act as a plow and shovel all that snow up to the CVT case? After work today im going to check my case to see if it is metal or plastic, i assume metal cause yesterday i curbed mine while parking as well for the first time,,, oops:p
Eric L.
quote:
Originally posted by floaty98
what would happen if there is a bunch of snow and i go driving in it, wouldnt that CVT scoop act as a plow and shovel all that snow up to the CVT case? After work today im going to check my case to see if it is metal or plastic, i assume metal cause yesterday i curbed mine while parking as well for the first time,,, oops:p


The scoop has an outlet at the back, so presumably nothing can get trapped in there.
floaty98
quote:
Originally posted by Eric L.


The scoop has an outlet at the back, so presumably nothing can get trapped in there.


I think that it might, a two to three inche opening and a 1 inch outlet is going to clog full of snow real quick, that thing will be full of snow the first snow pack it hits, the only thing i can think to release it all will be the heat from the CVT and will melt it all away? But if you drive it a short distance ( ie: move it from one driveway spot to another ) and the car doesnt have enought time to heat up and the snow packs in there, it could potentially be a haven for a nice block of ice in the morning when you go to restart your car and i doubt that is good for ther CVT and all the fluids to be nestled cozly up with a block of ice all night. When i first saw this damn scoop i didnt like it, and I have a feeling it will pan out ( no pun intended ) to be a nightmare.
lmuscella
I agree. I live in a court that never gets plowed and when I move my cars around I will be plowing with the front end. I took the shield off this weekend. I have not seen any problems as yet but will submit if something occurs.
jaak
I don't see it as an issue.... It may jam up with snow and turn to ice and stay there for a month until it finally melts off, but I don't expect the CVT will care. If it's cold enough for it to stay as ice, the rest of the CVT case will be just as cold. When the CVT warms up enough to melt it, it will melt....

To me, it's just ugly and looks like a reaction to the CVT overheating under certain conditons. If they had put it back a little, it wouldn't be as likely to be hit with a curb. But such is the joy of being an early adopter! We get to discover these things... Overall, I see it as a pretty trivial issue. So far I've just left mine bent a little. No point in straightening it, so I can bend it again!

So far in 9 months of driving, I've hit it once.:eek:
esemes
looked into the new plastic ones at the dealer today......



they appear to be less noticable, and less 'scoop-ish'


i'll take pix of them (side by side) when i return there tromorrow....

(aweful luck with my window rattle so far)
KSmurano
es - did you get a price on the plastic scoop?
esemes
quote:
Originally posted by KSmurano
es - did you get a price on the plastic scoop?



funny thing is...........



i cant even find the ole metal one on any of my listings.........


i guess if i have that, then the updated one might have the similar p/n (maybe an amendment p/n or something)

anyone have on-line fiche???

i'll be back at the dealer today,, to hand deliver the TSB (they only get nissan updates ever OTHER month, and havent any news since the end of Aug.....) (rolls eyes)
copperstreak
I have a 7/03 build and looked at this scoop yesterday.

The plastic one does have some numbers and lettering on the bottom, but I was not dressed at that moment to get under the car to read it!

It is not much of a part IMO! Rather small simple plastic piece that is attached with two plastic gromet-like screws with the star shaped head (someone else
can detail what the real name of those thinga-ma-bobs).
esemes
nonetheless.........


im changing mine out..............


i think............. (less weight, plus more resistence to damage)
floaty98
well if the plastic one is available for aftermarket do you think it is even possible to replace the metal with the plastic, i havent gotten under mine yet, but im wondering if it is bolted on and or welded? If someone knows please tell me
dmako
The scoop should be speed sensitive.

Using simple air flow and perhaps a spring and hinge setup would probably do it. When moving slow, there is no air flow and the scoop is up and out of the way. At highway speeds it is down scooping air.
esemes
back from the dealer.....



forgot the f#@&ing camera.........


lousy memory!@!!!!!!

stay tuned!
floaty98
well after i heard about this CVT scoop i decided to check out mine, especially after i hit if for the first time ever this weekend. Saturday i was barely pulling into someones apt's when i hit it, very slowly. I backed up and thought nothing of it. I checked it out yesterday and my scoop is pushed up, not only that but it bent the metal cooling fins as well. Im soo pist off. I think i might take it into Nissan to have them replace it, maybe straighten the fins and put on a plastic one for me, hopefully all for free. is there a TSB out on this does anyone know?........disgruntled MO driver ( not really but a lil perturbed at this )
bdpadge
I noticed there hasn't been a picture posted of the plastic CVT air scoop, so I thought I would add one. As you can see from the left image, the profile is much less than the metal.
esemes
quote:
Originally posted by bdpadge
I noticed there hasn't been a picture posted of the plastic CVT air scoop, so I thought I would add one. As you can see from the left image, the profile is much less than the metal.



thats it!!


nice comparo!!

now, i really wanna replace mine.........


wonder if i can get it in CF??
mike scruggs
Does anybody remember "curb feelers"? They were mounted on below the front bumper just ahead of the front wheels.It kept the side walls of the tires from being "scuffed" by the curb. You'd "feel" the wire"whiskers"scrape the curb first before the tires did. Maybe mounting a pair of curb feelers under the chin of the Murano just
foreword of the air scoop would alert the driver of "incoming"parking block/curbs.
But then again it might make the front of the Murano look like a Catfish.:D
Gonzo
Had a hard time comparing the two.... so here they are in the same image..... :cool:
floaty98
well i called my dealer told him while parking i hit this scoop very lightly and now it is bent and i want them to look at it, he said i must have bottomed out or something as well as he has never heard of this problem. I told him how they are now plastic, etc and I would like for them to look at it and maybe replace it, he didnt sounds to reassuring and said warranty wouldnt cover it but to make sure hed have to look at it. Does anybody know if this CAN be covered or if there are any TSBs or something out there for this. I think there is a lot more people with this problem of a smashed CVT but dont realize it cause who really checks under their cars, right? Any help would be awesome. Ill keep ya'll posted:confused:
clydesdale
I stopped at my dealer last Friday and described the situation to the person at the service counter. He didn't have a clue what I was talking about but did say that if the damage was caused by my hitting something then it wouldn't be covered under warrenty. He said for me to order a new one I'd have to have the VIN number of my MO. I was tempted to get a socket and drive out of my truck and pull one off an '04 right there in the lot. As it is now I've removed mine and will go backe to the dealer, armed with the VIN, and order up a new one. Here's a pic of my busted up Scoop.
dmako
Let us know what a plastic scoop goes for, and part number.
floaty98
has anyone pulled off their CVT scoop? Im wondering if it would be okay without it. If this is going to be such a hassle and keep getting bumped or wrecked and or having to fight with the dealer, might as well take the darn thing off.

Also has anyone with a plastic one noticed any negative implications?I dont wanna fix mine, put on a plastic one and then have the plastic one screwing up things, then im back to square one.
lmuscella
Mines off. No warnings or problems yet??
Gonzo
I'm paranoid... let us know about any problems in about 5 years.
esemes
quote:
Originally posted by Gonzo
I'm paranoid... let us know about any problems in about 5 years.


im paranoid too.....



i find myself parking four feet from the conc. wheelstops in parking lots....... people mus think im driving a tank or something......


ima swap mine out, for sure......
floaty98
Well today I have to take in the MO for her first dealer visit, :( Anyways Ill keep ya posted on what they said about this situation and if it is warrantied or not, by the sounds of the previous conversations looks like this is coming out of our pockets. However I called 1-800-NISSAN1 and complained and they said if this is indeed a recall or defect down the line all will get reimbursed for their money spent. I would suggest all MO owners call and complain about this, I think nothing is being done cause as Ive said before most consumers never check under there car.
jaak
Well so far in 9 months of driving, I've hit it once.... Stop parking over top of curbs!:D
GMTURBO43
I've managed to keep mine in one piece. Although it has become habit for me to not pull all the way to the parking blocks. I've had a couple vehicles that have had lower than factory stance. But even then - I don't think the MO would hit a parking block around here.
dklanecky1
I'm with Jaak on this one.

I can't ever get the front of my Murano anywhere near where it ought to be in parking manuevers. I'm always convinced I'm right on top of the object I'm trying to get close to with the front bumper, I get out and I'm still a foot away.

You guys must really be parking deep.

I can't even imagine hitting the scoop under the vehicle.
floaty98
Well I took it into the dealer last night for them to look at it. The mechanic came out and talked to me, said when they frist got these cars in there he knew it was going to be a problem. He said he knew nothing about the plastic vs metal scoops and was sort of at a loss. He checked all databases and no TSBs, recalls, defects nothing came up. I asked him if I was the first to bring in my MO for this issue, he said yes but "to be honest im suprised it has taken this long for someone to come in"; but like I said to him, how many people actually look under there cars? He said he thought any repairs wouldnt be warrantied, but he will check into it further, as for now I found out the price of the plastic guard and it is $21.00 . The mechanic told me he would check some AutoTech database which is some sort of datatbase in which all the NIssan dealers report to??? and he will check to see if other mechanis nationwide are having this issue. So hopefully if so maybe I can get this replaced for free as well as I will push this for a defect or some sort of TSB to be placed. I was quite shocked to see the mechanic on my side for once and total agreeing with me =) Phew, anyways so Ill keep ya posted on what the database says and hopefully others around the nation are reporting it as well....dont see why not.

ps. as my father told me last night, this is "supposed" to be a 4x4 or can be off-road to some extint ( Ill never do it though ) but anyways how is that possible when you cant even drive it in some damn parking lot?
Enforcer
quote:
Originally posted by jaak
Well so far in 9 months of driving, I've hit it once.... Stop parking over top of curbs!:D


Ditto, only 4 months instead of 9.

I'll stick with the steel and I'll leave it on.

Don't believe it protects the CVT, just there for extra cooling IMHO. Take a good hit and the CVT pan and tray is history. The pan is no substitute for a skid plate.

As to offroading....ah...IMHO no. Nissan markets the MO as an urban SUV, AWD or FWD. This "feature" is one of many reasons why you don't really want to take it off road. Steel or plastic not withstanding. Secondary and unimproved roads like gravel beds ok but go real slow, but not off-road. I used to do a lot of offroading and the MO ain't offroad capable like I used to get into. With that said, I'm sure there are many who have and will with no problems, probably took cadilacs off road too. Besides, who would want to scratch up and dent up a peppy sculpture in motion?
esemes
quote:
Originally posted by floaty98
Well I took it into the dealer last night for them to look at it. The mechanic came out and talked to me, said when they frist got these cars in there he knew it was going to be a problem. He said he knew nothing about the plastic vs metal scoops and was sort of at a loss. He checked all databases and no TSBs, recalls, defects nothing came up. I asked him if I was the first to bring in my MO for this issue, he said yes but "to be honest im suprised it has taken this long for someone to come in"; but like I said to him, how many people actually look under there cars? He said he thought any repairs wouldnt be warrantied, but he will check into it further, as for now I found out the price of the plastic guard and it is $21.00 . The mechanic told me he would check some AutoTech database which is some sort of datatbase in which all the NIssan dealers report to??? and he will check to see if other mechanis nationwide are having this issue. So hopefully if so maybe I can get this replaced for free as well as I will push this for a defect or some sort of TSB to be placed. I was quite shocked to see the mechanic on my side for once and total agreeing with me =) Phew, anyways so Ill keep ya posted on what the database says and hopefully others around the nation are reporting it as well....dont see why not.

ps. as my father told me last night, this is "supposed" to be a 4x4 or can be off-road to some extint ( Ill never do it though ) but anyways how is that possible when you cant even drive it in some damn parking lot?




float-

can you give me thew part number???

i will forgo the 21$ for piece of mind (kinda)

thnx

sms
jaak
I'm going to mount mine backwards and use it as a skid plate.:ucrazy:
esemes
quote:
Originally posted by jaak
I'm going to mount mine backwards and use it as a skid plate.:ucrazy:



i use mine to plow the driveway, when it snows.....



i plan to go around the neighborhood this winter, and try to make some money plowing other's drives, with my oem CVT plow...


(mr. plow's my name..................)

:toothless :runaway:
clydesdale
I stopped and ordered a new scoop yesterday. The part number is:

62684-CA000 GUIDE AIR

Cost $24.35
Doombringer
Wait, I'm lost... that comparison pic between the 'new' and 'old' air scoop... which model is the 'new' one off of? 2004?

I have the 'old' scoop. Haven't hit it yet. Is someone pushing for a recall/TSB here? For what?
floaty98
quote:
Originally posted by clydesdale
I stopped and ordered a new scoop yesterday. The part number is:

62684-CA000 GUIDE AIR

Cost $24.35



See i dont recall it being that long not calling you a liar at all, just I remember it was 4 digits? Hmm but now that I think of it 4 digits doesnt seem right anyways, hmm I think i need to take a nap now cause my CRS syndrome is kicking in.

CRS ( Cant Remember Sh*t )
Gonzo
The one on the right is metal and the left is plastic. I think it was a 2003 for both pictures. I heard that they changed to plastic sometime late summer.... I think.
clydesdale
quote:
Originally posted by floaty98


See i dont recall it being that long not calling you a liar at all, just I remember it was 4 digits? Hmm but now that I think of it 4 digits doesnt seem right anyways, hmm I think i need to take a nap now cause my CRS syndrome is kicking in.

CRS ( Cant Remember Sh*t )



Thats the number directly off the Parts Invoice and what I wrote down from their parts computer screen.
dmako
Did you ever get the plastic air scoop? and if so does it replace the metal one?

I found the part# online for $18.55. But $8 for shipping.

quote:
Originally posted by clydesdale
I stopped and ordered a new scoop yesterday. The part number is:

62684-CA000 GUIDE AIR

Cost $24.35

clydesdale
quote:
Originally posted by dmako
Did you ever get the plastic air scoop? and if so does it replace the metal one?

I found the part# online for $18.55. But $8 for shipping.




It should be here by Wednesday or Thursday. Actually I'm not sure if I'm getting the newer plastic model or not - the parts person couldn't tell me. I slid under one of the '04's and they look to bolt on the same. I'll post as soon as I pick it up.
jaak
oops! 10 months of driving and whacked it for the second time....

Maybe I'll just take it off, hang it up, and if I ever have CVT issues, bolt it back on when I take it in to complain....

Don't suppose it will be an issue in the winter!
clydesdale
quote:
Originally posted by jaak
oops! 10 months of driving and whacked it for the second time....

Maybe I'll just take it off, hang it up, and if I ever have CVT issues, bolt it back on when I take it in to complain....

Don't suppose it will be an issue in the winter!



Thats what happens! Whack it once and that knocks it down lower and makes it easier to whack again. I pulled mine off and think it will be fine for the winter too. I'll probably put off installing the new one till warm weather returns - in another 5 months or so. :(
jaak
Sounds like a good strategy...

I can think of two reasons why the new one is plastic.

1) The metal one get's hit and does damage eventually.

2) The plastic one is cheaper to make.

Since the plastic one is smaller, I tend to favour 1)

Looks like the tools are coming out this week!
Chezman29
During my offroad snow mission the other day it worked great to fill up with snow, which then turned into an ice block inside there.
So I guess my CVT has an extra cooling effect to it now!!! lol

Chez
floaty98
As you may know I took mine in like 2 weeks ago to have them look at it. They are ordering the part for me in hopes that it is a plastic one. When it comes in the will call me, they are hoping to do it in such a way they can warranty it for me. I also spoke with the mechanic yesterday who has been VERY helpful and supportive and said not only does the new MOs have a plastic scoop but also they have a new CVT pan, instead of lil cheap fins that bend like a pop can he said the news ones have a single piece of molded aluminum, to stop the fins from bending. I asked him if they can work that into the work order as well, no point in fixing half the problem, they said they will see what they can do. So to all you MO owners who have the cheap ass fins and metal scoop, they do have a whole new setup now, which I highyl suggest looking into your dealer to warranty it all and replace it. Ill keep you posted on my status and what they do.
clydesdale
quote:
Originally posted by dmako
Did you ever get the plastic air scoop? and if so does it replace the metal one?

I found the part# online for $18.55. But $8 for shipping.




I picked up the Air Scoop yesterday. It is the old metal version. The parts person is supposed to look up the newer plastic type but she was busy and I was on the clock so I took the metal one and ran. So, if anyone has the part number for the plastic scoop could they post it?
dmako
Would like to make something like this (hope picture works).

Stopped, or at low speeds, scoop up. Moving fast, scoop down.
Eric L.
quote:
Originally posted by dmako
Would like to make something like this (hope picture works).

Stopped, or at low speeds, scoop up. Moving fast, scoop down.



Why would you want to modify the scoop to be even lower? I think the issue most people are having is that it is too low already and they are scraping with it. I guess if you can mount the entire unit up high, and then when it "opens" in your picture it will extend to approximately the same height from the ground as the static scoop today.
dmako
No, the design would be half the height of the current factory setup. The piece that would lower would be pulled down only at speed.

So the unit would be only about an inch thick.

Yes when moving it would be down as far as the factory setup, but at 30 MPH your not hitting curbs or rocks I would hope.

Think of it as a rear spolier on a Porsche.


quote:
Originally posted by Eric L.


Why would you want to modify the scoop to be even lower? I think the issue most people are having is that it is too low already and they are scraping with it. I guess if you can mount the entire unit up high, and then when it "opens" in your picture it will extend to approximately the same height from the ground as the static scoop today.

Eric L.
quote:
Originally posted by dmako
No, the design would be half the height of the current factory setup. The piece that would lower would be pulled down only at speed.

So the unit would be only about an inch thick.






Aha! Now that would be very clever. :cool:
hfelknor
But the problem is NOT whn the car is speeding down the road.

The problem with heat buildup is when the car is idling in traffic.

Homer
Enforcer
:claphead:

Ok that's it dmako! That is like the 5th time you have blown me away with a really cool simple idea!

:6:

Should be easy to build, the trick is selecting a spring or two that has the right stiffness.
dmako
If this was true, then the scoop makes no sense.
At idle there is no air flow.

quote:
Originally posted by hfelknor
But the problem is NOT whn the car is speeding down the road.

The problem with heat buildup is when the car is idling in traffic.

Homer

hfelknor
Sigh.
Try 5-15 MPH in traffic when the heat Load on an automobile is highest.

Or do you Doubt That?


Homer
dmako
Don't know, but the design would allow for a opening, just small so that at 5 -15MPH you would still get air flow. A matter of fact the flow would be closer to the cooling fins.

At speed the scoop would open up for full cooling, can't hurt.

Need someone to tell us the oprating temp. of the CVT at speeds.

Anyway a bent scoop does nobody any good.

quote:
Originally posted by hfelknor
Sigh.
Try 5-15 MPH in traffic when the heat Load on an automobile is highest.

Or do you Doubt That?


Homer

hfelknor
I think the thing that confuses me is why the Murano has this silly assed scoop, which looks like an afterthought, but does not have a Transmission Fluid cooler, which is a tried and true manner of cooling transmissions down.

I agree that your flippable flap couldn't hurt and might help.

I just don't understand why Nissan did it this way.

And the fact that they did it all gives pause, especially to those of us who live in the south.

As to plastic vs metal pooper scoopers:
I can see where jaak's coming from in that the metal one may actually cause damage to the trans case.
But I also can see where a metal one might act as an additional "heat sink".

Homer
Eric L.
Actually I have read that the CVT has 3 transmission coolers. There is already the standard one below the radiator tank. I am not sure what the 2 other ones are though.
Gonzo
Three coolers... I only knew of one below the radiator. Perhaps the fins are two?
hfelknor
I didn't even know there was 1.

Three coolers? And a scoop?

Oh my.

I am glad I got the Extended Warranty.
Especially here in Florida.


Hopefully, with all that paraphanalia, the CVT now runs cool.
But the "last minute afterthought" look of the scoop, does not give one confidence.

Homer
Chezman29
Doubt they will run it in the Dakar rally!!! Unless its a weeeeeeee bit modified. LOLOL.

Mine scoops snow up, then freezes in there to keep her nice and cool. They were REALLY thinking on keeping that thing coooooool.

Chez
dmako
Take a look at parts # 3, 7, and 10. All cooler hoses.
Eric L.
quote:
Originally posted by dmako
Take a look at parts # 3, 7, and 10. All cooler hoses.


Yeah but those hoses lead to the cooler tank underneath the radiator, the hoses wouldn't be considered coolers since they are rubber tubing. I am thinking the fins underneath the CVT fluid pan probably equals a second cooler. I wonder what the third cooler is!
Gonzo
dmako I think that those hooses all go to the same radiator. Two lines are for the send and return line. The third line is most likely some sort of relief line or bypass line.

I believe the MO only has on trans cooling radiator.
hfelknor
These look like normal connectins to the radiator for cooling.

What I am referring to when I talk about a transmission cooler is a device that looks like an Oil cooler.

It is very common in both Performance cars and tow vehicles.



Homer
Chezman29
That is showing you it has 1 radiator. One is the inlet from the radiator, one is the outlet from the radiator.

If there is another diagram with a different part of the CVT that has the same, then it may have more than one radiator. Or if the radiators connect to each other then there may be more. Although that diagram shows a typical, inlet/outlet typical setup.

Chez
hfelknor
BTW I finally got off my lazy ass and clumb under my car.:)
I have a build date of 6/03 and have a PLASTIC scoop.


Homer
dmako
Anyone ever find the part number for the plastic scoop so that we can replace metal one?

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