Orange crap on tty head bolts
Orange crap on tty head bolts What is this stuff that GM puts on their head bolts? I just spent an hour cleaning the old crud out of the block with the arp thread cleaner tool, so i really dont want this stuff messing up my torque values.
Should i remove it, or torque them down.
Should i remove it, or torque them down.
I used the gm bolts like you. I didn't clean it off. I've had my heads off a few times and haven't had an issue. Each time I do have the heads off I spray air and brake klean into the holes to make sure there isn't any debris in there. Esp coolant. It's either a type of anti sieze or thread locker
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Joined: Jun 2011
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From: Land of the Mormon's although I'm not one of them
That would be anti-seize, a specific amount of a specific type applied such that the TTY gives the same stretch every time.
Any changes in that material on a TTY bolt can change the % stretch of the bolt as more anti-seize will make the bolt easier to turn, thus making torquing easier and thus effecting the stretch and pre-load put onto the bolt at a specific torque.
Any changes in that material on a TTY bolt can change the % stretch of the bolt as more anti-seize will make the bolt easier to turn, thus making torquing easier and thus effecting the stretch and pre-load put onto the bolt at a specific torque.
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Verdad Gallardo That would be anti-seize, a specific amount of a specific type applied such that the TTY gives the same stretch every time.
Any changes in that material on a TTY bolt can change the % stretch of the bolt as more anti-seize will make the bolt easier to turn, thus making torquing easier and thus effecting the stretch and pre-load put onto the bolt at a specific torque.
Any changes in that material on a TTY bolt can change the % stretch of the bolt as more anti-seize will make the bolt easier to turn, thus making torquing easier and thus effecting the stretch and pre-load put onto the bolt at a specific torque.
Joined: Jun 2011
Posts: 314
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From: Land of the Mormon's although I'm not one of them
ok, fair point. It may have some effect on the initial torquing of the bolts though (the first step to get all the bolts at a baseline torque before doing the angle torquing)
Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
Good choice. And unfortunately spending time cleaning threads is something that is par for the course, though I'm sure its a step lots of people overlook.