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Discussion Starter · #21 ·
Got a big trouble when reinstalling the rear valve cover. The thread (yellow arrow) was damaged, probably during the removal of old valve cover. Now I cannot tighten the bolt at that area anymore, and my understand is that that would lead to oil leaking very soon.

Any idea how I can fix it?

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Maybe get a thread tap of the same bolt/pitch size and see if new threads can be cut. Then don’t overtighten and use some sealant in that area.

Would a longer bolt workwith a nut? I dont think that is a thru-hole but don’t remember and can’t tell from pic.

good luck
 

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The proper and only way to fix a stripped engine bolt hole.

Amazon.com: DAYUAN 131Pc Thread Repair Kit, HSS Drill Helicoil Repair Kit Metric M5 M6 M8 M10 M12 : Automotive
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Commonly used when a sparkplug opening has been stripped, to restore the threads. When done properly, the repair will last the life of engine, performing as good as the original threads.

Your local auto parts store might have a smaller kit for just a single repair cheaper. Bring the bolt with you to make sure you get the proper size and pitch needed.

Good luck.

Have a good day.
 
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