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Stripped head bolt thread out block, How do i repair??

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Old 15-11-2004, 07:14 AM
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zvhturbo
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Default Stripped head bolt thread out block, How do i repair??

When torqueing the head bolts it pulled the thread out the block, the bolt is fine.


What can be done to repair this??

Can they HeliCoil this type of thread, given the pressures they are under??
Or should i open the thread up from a M10 to a M12 and use larger bolts??


Thanks for any help.

Matt.
Old 15-11-2004, 07:26 AM
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GARETH T
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there shouldn't be a problem with a helicoil!
Old 15-11-2004, 07:40 AM
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If there was enough room i'd probably go with a larger bolt if not helicoil it
Old 15-11-2004, 07:41 AM
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Would it not be worth re-threading them all to a M12??

Make them all stronger.
Old 15-11-2004, 07:42 AM
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Originally Posted by Steve@SCC
If there was enough room i'd probably go with a larger bolt if not helicoil it

I've checked and there is loads of room. Its a 2.0ltr zetec block.

The only other thing i would have to do is open the holes through the head from 11mm to about 12.5mm
Old 15-11-2004, 07:44 AM
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GARETH T
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i wouls still helicoil it
how do you know you are going to place the right amount of clamping force if you us another bolt?
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