Belt length for Ac bypass w/o pulley

Kaleidoscopelife said:

Does anyone know the belt length to bypass seized up ac compressor w/o using a bypass pulley on a 09 murano. I know I can measure it with tailors tape but figured I’d check here before I went and bought the tape and risked being off on my measurement. Thank you.

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Is the compressor itself seized up or is it the bearing on the pulley (i.e. does turning the A/C off allow the belt to turn?)

It’s seized completely the belt smoked and snapped with ac off. But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch. That’s w/o installing an ac bypass pulley and leaving the compressor in.

It’s seized completely the belt smoked and snapped with ac off. But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch. That’s w/o installing an ac bypass pulley and leaving the compressor in.

Kaleidoscopelife said:

It’s seized completely the belt smoked and snapped with ac off. But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch. That’s w/o installing an ac bypass pulley and leaving the compressor in.

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Then it's the bearing on the pulley. Do you know for sure that the compressor itself is toast? Anyway, since it's apparent that you don't care to have A/C right now, why don't you just buy a cheap A/C clutch/pulley kit on eBay (...I've seen them as cheap as $40) and replace the pulley/coil. If the compressor is bad then pull the fuse for that circuit.

The problem I see with bypassing the A/C pulley altogether (aside from being an unusual solution to your problem) is that I'm not sure it will work well given how the entire drive belt is routed between the idler pulleys. Also, doing this would likely change (increase) the tension applied to all the other pulleys since the auto-tensioner is engineered to factor in an A/C pulley.

Nevertheless, if you try this then let us know how it works out.

Been running it yesterday and today. Not noticing any issues will keep posted if something comes up. Yeah there was intermittent knocking coming from the compressor location. With the ac off. Got under car and felt it coming from compressor. Then it stopped couple days later and that’s when pulley was locked up belt fried and snapped upon restart trying to get vehicle back home 2 miles from Walmart. When I’m ready to replace I’m gonna go ahead and just replace full unit and have tested and flushed in case of any debris from old compressor made it through. I will list update when I have the money and have it replaced as to what exactly was wrong with it. Car runs smooth and with no noise now. Ok I will look into kit and if I have correct tools to repair. If I can and it’s still toast I will pull fuse. Thanks for the info.

To follow up - those idler pulley bearings can go bad, and when they do, they often lock up and destroy the belt in seconds. I replaced one on my 07 Murano when it got noisy - they don't all do that, but this one did and I caught it before it locked up.

It's the bearing. Buy the pulley kit with new bearing and fix it yourself. Get yourself a new belt.

Here’s my video from when I had the same issue. Video includes part number for bearing and magnetic coil behind pulley. My could was destroyed by the wobbling pulley. After a new coil and bearing my compressor still works great at 245k miles.

Kaleidoscopelife said:

It’s seized completely the belt smoked and snapped with ac off. But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch. That’s w/o installing an ac bypass pulley and leaving the compressor in.

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Is it still working?

It is. Haven’t had any issues.

Kaleidoscopelife said:

It is. Haven’t had any issues.

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Hey @Kaleidoscopelife, what's the brand/part number of the belt you ended up using in case someone else decides to go this route?

Kaleidoscopelife said:

It’s seized completely the belt smoked and snapped with ac off. But to anyone else who needs to bypass ac pulley for same reason the belt size is 54 1/2 inch. That’s w/o installing an ac bypass pulley and leaving the compressor in.

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NICE !!! You just saved me alot of headache with this !!! So did it workout okay? I have a 2013 same problem and cant afford the replacement a/c kit right now.

I have a 2007 Nissan Murano with same problem. I am a nurse and can't do without my car. Kit ordered but will be a week getting here. What size is the belt to bypass air conditioner on 2007. Does anyone know