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Uh-uh
Posted by JD From LA (more from JD From LA) on Tue, 24 Jul 2001 22:25:24
In Reply to: Re: Re-Torque Head Gasket Bolts Necessary?, Vince T, Tue, 24 Jul 2001 13:30:33
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Guys guys guys:
Modern SAABS (read: anything newer than 1978) use torque-to-yield bolts. That means the bolts are meant to be stretched ONCE and that's all. Any fastener requiring an angle setting as the final step is a torque-to-yield bolt. Do not retorque and do not reuse these bolts. Once they stretch they stay that way and will not clamp with sufficient force again. Use a good torque wrench and never loosen, torque, or retorque any head bolt on any aluminum head engine unless it's DEAD COLD. I.e., after sitting overnight, just to be safe.
VWs use torque-to-yield bolts. I knew a guy who reused the head bolts. Gotta hand it to him. The head gasket lasted three whole months before it blew again.
JD
Posts in this Thread:
- Re-Torque Head Gasket Bolts Necessary?, A.Roper, Tue, 24 Jul 2001 09:40:59
- Re: Re-Torque Head Gasket Bolts Necessary?, chrisx, Tue, 24 Jul 2001 14:48:45
- Re: Re-Torque Head Gasket Bolts Necessary?, Vince T, Tue, 24 Jul 2001 13:30:33
- Uh-uh, JD From LA, Tue, 24 Jul 2001 22:25:24 <-- Viewing This Message
- Re: Re-Torque Head Gasket Bolts Necessary?, Graham, Tue, 24 Jul 2001 09:54:53
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