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Some help arp head stud


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4 hours ago, Faiyaz.123 said:

That' exactly what happened .

Seems like the engineer hit a blunder .But managed to get them in .then into another problem .one of the bolts at 40nm just spins round .which means again the engineer has tapped it to big so advised to tap and install a helicoil. 

are you sure a helicoil will hold that sort of torque/tension??

maybe some of the other technical members here can lend some insight in this matter

i did use a helicoil to sort out an exhaust manifold/head stud a while back with great success, but i'm not sure about using it for headbolts

 

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