M42 Cam Cover - Helicoil

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trojen
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Post Tue Feb 11, 2014 8:26 pm

I have a couple of threaded bolt holes in the head. Its the top set for the cam cover, (i know its a common problem - aluminium head steel bolts). it's not causing me any issues but as its laid up it's an ideal time it fix it.

I was thinking of ordering a helicoil set to repair the threads, has anyone done this? if so is it the M6x1 kit i should be buying?

Or, are there any other ways of repairing the damage?
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MrWhite
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Post Tue Feb 11, 2014 8:46 pm

I've got a few helicoils in my M42 head. From memory I think M6 x1 is correct. Pretty straight forward , just make sure you don't drop swarf into the valve train. I masked it all off beforehand and made sure all the bits were brushed/blown away before removing the cover afterwards.
rust never sleeps
trojen
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Posts: 94
Joined: Fri Apr 02, 2010 11:00 pm
Location: West Midlands

Post Tue Feb 11, 2014 8:59 pm

Perfect cheers MrWhite
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318is
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