HEAD GASKET TORQUEING

1989 Toyota Supra

Tiny

scottw13

April, 22, 2009 AT 12:40 AM

Engine Mechanical problem
1989 Toyota Supra 6 cyl Two Wheel Drive Manual 95000 miles

I have heard that these 7mge engines are knows to blow head gaskets because the manufacturer did not torque the head gaskets tight enough. Can I torque them tighter to prevent this? And to what torque and how would I go about this project?
Thanks

Scott

3 Answers

Tiny

bluelightnin6

April, 22, 2009 AT 12:53 AM

Below are the proper specs. and gasket placement..


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_477.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_1_60.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_2_38.jpg



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Tiny

scottw13

May, 6, 2009 AT 12:41 PM

I see that these are the manufacturers suggested torques. My question is that I have read that these manufacturers torques are not tight enough, and that the head gaskets bolts need to be torqued higher. Do you know what the new torque should be? And how would I go about this? Thanks

Scott

Tiny

bluelightnin6

May, 6, 2009 AT 1:17 PM

There is no recalls or technical service bulletins for this vehicle about cylinder head torque. My sources are up to date and direct from dealer repair manual. Tightening the bolts more than dealer specs is completely your decision and your call on what to torque it to beyond this. You would need a torque wrench to perform the operation.

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