Stripped head bolt thread
#1
Kinda misses his Civic
Thread Starter
Stripped head bolt thread
My TL was getting head gasket replaced...mechanic discovered head bolt thread in the block is stripped. He recommended that I just replace the engine
He said a helicoil could not handle the torque required for head bolts. Anyone have a similar experience they can share? Car is being towed to another shop so a family friend (also a mechanic) can take a look at it. I don't want to replace the engine if I don't need to
Thanks
He said a helicoil could not handle the torque required for head bolts. Anyone have a similar experience they can share? Car is being towed to another shop so a family friend (also a mechanic) can take a look at it. I don't want to replace the engine if I don't need to
Thanks
#3
Senior Moderator
helicoil will be more than strong enough. I have used them on heads before. You arent running super high compression and or boost. Another option is to tap the thread for a slightly larger size and replace the one head bolt with a larger one. (may require to drill the head bolt hole slightly larger)
One other thing. How did it get stripped? It wouldnt get that way from the factory, so i may be inclined to say the guy working on it did it
One other thing. How did it get stripped? It wouldnt get that way from the factory, so i may be inclined to say the guy working on it did it
#4
Kinda misses his Civic
Thread Starter
Head gasket was replaced this past summer so I assume the last guy did it. Had overheating issues arise a few weeks ago, that's why it was in the shop this time and after replacing leaking water pump, head gasket was found to be the culprit.
Thanks for the input
Thanks for the input
#5
sounds like the prob started with needing a water pump- how many miles?
something caused head gasket failure originally,,what was it?
hose failure-rad problem??
then total failure of wp now caused unknown mini-overheats that blew head gasket again
last guy cross-threaded in the bolt- who knows what else was done poorly
something caused head gasket failure originally,,what was it?
hose failure-rad problem??
then total failure of wp now caused unknown mini-overheats that blew head gasket again
last guy cross-threaded in the bolt- who knows what else was done poorly
#6
I need 2 more gears
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that sucks. You may want to find a new motor and not deal with anymore BS. Check on-line or on the BM here. I would not want to retap that IMO. You could, but unless you get it down perfect it'll cause you problems. Tapping cast aluminum sucks. It's not the strongest metal.
#7
Kinda misses his Civic
Thread Starter
Bleh, I decided to just replace the engine. The shop found one with 90k miles (mine has 146k) so that will be going in this week. After two shops plus a family friend/mechanic recommended that route, I just decided it would be best
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