Blown Head Gasket repair w/pics

IHateHacks · 03-08-2007, 07:26 PM

88Tsupra- The head bolts are underneath the cam covers. If they are factory head bolts, you will need a 10mm allen head socket. It will have to be 3/8" drive to clear the cams and lifter bores. If they are ARP bolts, you will need a 1/2"(size, not drive) 12 point socket. Again, it will need to be 3/8" drive to clear the lifter bores. Then use a 3/8" extension and a 3/8" to 1/2" drive adaptor to use a 1/2" torque wrench.

And as a side note, the cams will need to be set at TDC in order to fit any kind of socket down past them to the head bolts. This is because of the castings of the cams have special ridges casted into them that have flat spots right in the spot where the head bolts are. You will see what I mean if you ever torque the head bolts yourself. In my opinion I think Toyota did that as a fool proof way of making you set the engine to TDC before you take the head off.

03-08-2007, 07:26 PM	#117
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	88Tsupra- The head bolts are underneath the cam covers. If they are factory head bolts, you will need a 10mm allen head socket. It will have to be 3/8" drive to clear the cams and lifter bores. If they are ARP bolts, you will need a 1/2"(size, not drive) 12 point socket. Again, it will need to be 3/8" drive to clear the lifter bores. Then use a 3/8" extension and a 3/8" to 1/2" drive adaptor to use a 1/2" torque wrench. And as a side note, the cams will need to be set at TDC in order to fit any kind of socket down past them to the head bolts. This is because of the castings of the cams have special ridges casted into them that have flat spots right in the spot where the head bolts are. You will see what I mean if you ever torque the head bolts yourself. In my opinion I think Toyota did that as a fool proof way of making you set the engine to TDC before you take the head off. Last edited by IHateHacks; 03-08-2007 at 07:36 PM.