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Old 09-13-2020, 10:03 AM   #4
19Fordy
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Join Date: May 2010
Location: Coral Springs FL
Posts: 10,873
Default Re: Crank pulley bolt...Lost again!!

Are you torquing bolt to specs? Are the threads worn? Is there any type of lock washer or "spring washer" you could use with the bolt.

Here's a very good link to washers that might solve your problem. Lots of great information.
https://www.google.com/search?q=spec...hrome&ie=UTF-8

Read this:

https://vention.io/blogs/best-anti-v...-fasteners-178

Read about "Smart Bolts".
http://www.smartbolts.com/insights/l...nt%20loosening.

First thing I would do is try a brand new Grade 8 bolt.
What engine is in your car?

Last edited by 19Fordy; 09-13-2020 at 10:09 AM.
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