420A Valve cover torque sequence

[blasian]

I tried searching but could only find a torque sequence for the head. I'm trying to help a friend out by changing her valve cover gasket. She has a 2nd gen non turbo car.

Can someone tell me the correct sequence to torque down the valve cover? I was told to tighten the outside bolts first. Then the middle. Does this sound correct?

TIA

 

[steve]

On a 420A there is a special sequence.

Install the cylinder head cover assembly to the head and tighten fasteners in sequence top center, bottom center, middle left, middle right, top left, bottom left, top right, bottom right.

Tighten all fasteners according to the 3-step torque method.
(1) Tighten to 4.5 Nm (3.3 ft lbs.).
(2) Tighten to 9.0 Nm (6.6 ft lbs.).
(3) Tighten to 12 Nm (6.9 ft lbs.).

So first tighten all the bolts in order to 3.3, then all the bolts to 6.6, then finish off setting all to 6.9 ft lbs

 

[blasian]

Thanks for the info.

Just a note, i think the NM to Ft'Lbs conversion is wrong according to the conversion calculators i've looked at. Thanks again for the info. This helps alot.

 

[steve]

Just a note, i think the NM to Ft'Lbs conversion is wrong according to the conversion calculators i've looked at.

Perhaps, I just cut and pasted from the manual and didn't check them.

Steve