Re: Retorqued my headbolts (long) - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Retorqued my headbolts (long)
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Posted by SWEDECAR [Email] (#112) [Profile/Gallery] (more from SWEDECAR) on Sun, 11 Oct 2009 09:08:25 Share Post by Email
In Reply to: Retorqued my headbolts (long), ryan [Profile/Gallery] , Sat, 10 Oct 2009 14:15:13
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So what you have done is effectively lowered the quality of your engine.

The late 01 and up engines does not have issues with loose head bolts (still have the oil leak though in rear) and since you didn't torqued the new bolts to spec you have ended up with probably an 01 and older engine at the best.

The timing chain side bolts will always be oil soaked since you have oil galleys running there to lubricate balance chain and timing chain system.

All bolts will never have the same "feel" when doing the final 90°. You just have to trust the equipment and the two pretorque stages. That's what the lowered setting pretorque is there for.
Until you have done a head gasket on a Saab V6 engine (or Volvo diesel) you don't know what excessive force is when the pulling on the wrench.

Technically, the bolts should be installed dry. That's what the bronze coating on the bolts are there for. Cars in the old days did not have any prelube coating so you always oiled them.

Anders

SWEDECAR

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