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Old 03-12-2007, 06:03 PM   #121
IHateHacks
20psi boost
 
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Ok back on topic now, It's been very warm here today and I got some more things done. But I have questions that maybe someone, that has replaced their headgasket themselves, could answer.

TSRM does not list a torque spec for the EGR valve nuts (where it bolts to the head, actually the lower intake) EGR bolts (where it bolts to the upper intake) or the water outlet housing bolt and nuts.

So I used an inch pound torque wrench because aluminum is nothing to f-around with as it will strip out even with a ft lb torque wrench.

I torqued the EGR nuts to 144 inch pounds (12 ft/lbs). I torqued the water outlet housing bolt and 2 nuts to 132 inch pounds (11 ft/lbs), now they are the same size nuts/studs, 12mm size nut and 8mm size stud, but we all know studs are much stronger than bolts so that is why I did that. Now all of these bolts/studs/nuts are the same size as the intake manifold bolts/studs/nuts and the TSRM says 13 ft/lbs for them yet it says 9 ft/lbs for 8mm diameter bolts in the back of the TSRM where it gives general torque specs for specific bolt sizes and strengths.

These parts are very important to have torqued correctly seeing as pressurized coolant and exhaust gas pass through them, I don't know why Toyota just forgot to list the torque spec.

My question is what did you (anybody that has done it before) torque these bolts/studs to?
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