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Posted by Notnoel [Email] (#23) [Profile/Gallery] (more from Notnoel) on Tue, 31 Jan 2017 08:43:42 Share Post by Email
In Reply to: Re-torque of head bolts after engine rebuild questi, Notnoel [Profile/Gallery] , Tue, 31 Jan 2017 08:29:28
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So basically, the guidance is all over the place! The trend across the internet seems to be that new gasket material and new bolt technology means to follow the basic installation procedure and do nothing else - no retorque need apply.

HELP!!!!


REVISED HEAD GSKT & PROCEDURE ON 900 & 9000 SERIES

Revised Cylinder Head Gasket & Retorque Procedure
on 1981-88 Saab 900 & 9000 Series Engines


Saab-Scania of America has released a new cylinder head gasket and installation procedure for all 1981-88 Saab 900 & 1986-88 Saab 9000 series engines. This new procedure applies to 8 and 16 valve cylinder head engines produced after 1981.

The revised cylinder head gasket no longer requires retorquing of the cylinder head bolts after the engine has been started and warmed up for the first time. Furthermore, retorquing of the cylinder head bolts after the first 1000 miles of service has also been eliminated.

Use the following chart to determine if the cylinder head needs to be retorqued:

Engine Series Part Number * Procedure

1981-88 900 Series 8-Valve 75-85-037 do not retorque
1981-88 900 Series 16-Valve 75-61-301 do not retorque
1986-88 9000 Series 16-Valve 75-61-301 do not retorque

before 1981 900 Series 8-Valve 75-05-217 retorque
before 1981 900 Series 16-Valve 75-16-529 retorque

* Saab-Scania cylinder head gasket part number

Engines manufactured before 1981, using head gasket part #75-05-217 or #75-16-529, must be retorqued as before.


The AERA Technical Committee


AERA cites new Saab Guidance on re-torque

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