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post #13 of (permalink) Old 9th July 2015
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Re: renault rear bolt stripping

Judging from the bolt in the pic it looks like they have been over-tightened at some time in their life (probably by a hammer gun) or the threads of the bolts or their holes have been badly rusted. The threads aren't just stripped but also distorted out of shape.

Ideally you need to run a suitable tap down each threadhole to ensure the thredds are clean. Renew the bolts, lighlty oil them or give them a very light smear of anti-corrosive compund (copper gease). Tighten them to the correct torque. Take the car for a short run - then check the torque again. If you take your car to a garage or for tyres insist they be torqued correctly. No point in letting them use their air-gun and then slackening them off and re-torquing as the damage will already have been done.
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