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Title: Head Tension Post by: griffo on October 29, 2006, 05:16:59 AM 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, Title: Re: Head Tension Post by: Addo on October 29, 2006, 08:30:56 AM 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. Title: Re: Head Tension Post by: griffo on October 29, 2006, 09:33:02 PM Thanks Addo
That looks to be the ducks guts on what I need , plus the tip on head stud dealer Cheers, Title: Re: Head Tension Post by: griffo on October 29, 2006, 09:37:54 PM Oops
That should read "head stud sealer " not ( dealer ) or are we playing cards ? Title: Re: Head Tension Post by: chesoir on November 17, 2006, 01:41:20 PM 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. |