Head & Crank Tourque

[Supra2000]

Is there any one who knows the head torque for RB26 and crank torque?

[wrxhoon]

Head bolts :Do them all up to 29nm, then to 109nm, then undo them all. Do them up again to 25-34nmand finaly 103-113.

Mains:46-52nm

Big ends:Tighten 14-16nm then another 60-65 degrees.

Edited December 20, 2006 by wrxhoon

[Supra2000]

I didn’t understood should I undo them all and tighten them up again.

and how many stages we have?

[wrxhoon]

Head bolts should be done up in 2 stages as above .

When you do them all up the first time you undo them all, then do them up again. Do them up from inside out and undo them from outside in .

[Supra2000]

Excuse me,

Why I should undo them?

Edited December 24, 2006 by Supra2000

[wrxhoon]

Thats the correct procedure, its up to you what/how you do them .

[Supra2000]

What about crank torque?

[wrxhoon]

What about crank torque?

Refer to my previous post, here it is again:

Mains:46-52nm

Big ends:Tighten 14-16nm then another 60-65 degrees.

[Supra2000]

Do you main by main the main bearing?

[wrxhoon]

Do you main by main the main bearing?

Mains= main bearings. Big ends= conrod bearings.

I hope you have someone else building your engine...