Head Tension

[griffo]

When installing a new head on a red 202 what tension should the bolts be ? And do I tension them evenly at different stages ?

Griffo,

[Addo]

102N/M in 3 stages 50, 80 and then your 102N/M
Sequence,
Front of   12   8  4   1  5   9   13
Engine     11  7   3   2  6  10  14

I've just put mine together with a monoTorque Gasket set. This is what they recommended.
The sequence and torque is consistent with other types of Gaskets.
Addo,
I should add that a MonoTorque doesn't need retensioning (supposedly), If using others you'll need to retension. Don't forget to use 'head stud sealer' from GMH on all your head stud threads.

[griffo]

Thanks Addo
That looks to be the ducks guts on what I need , plus the tip on head stud dealer

Cheers,

[griffo]

Oops

That should read "head stud sealer " not  ( dealer ) or are we playing cards ?

[chesoir]

From memory, and believe me, it's a while ago, but there is only 1 or 2 of the head bolts that go through the water jacket, and these are the only ones that need the GM Sealer.
A very good tip is to put a smear of grease on the underside of the head of the bolt. Virtually eliminates friction, which means that your torque wrench is measuring torque only, and not bolt-to-head friction as well. It's also amazing the difference it makes to the "feel" of the procedure, if that makes any sense.
Cheers,
Chesy.