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intake manifold gasket with cracks 900 1994

posted by  Volvo945 on  Tue Dec 27 18:15 CST 2011
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last visit: Sat Oct 12 15:05 CST 2013
[RELATED]

As I posted earlier the 944T is idling at 2K RPM. It was suggested I look for air leaks. Examining the intake manifold unions with the head and I see the new gasket (9 months old, aftermarket from FCP) is cracked in ports 1 through 3! I'll pull the manifold off tomorrow to see if the cracks extend into the chamber and to renew it, probably with OEM. Right now these cracks are prime suspects to my starting and idling issue.

So did I overtorque the manifold to cause these types of cracks? I don't know if you can see from the pic but the gasket appears to be splayed outwards.

What is the torque spec on the intake manifold? I can't seem to find it listed in various reference sources. Is there a tightening sequence I should follow?

Thanks for all wisdom shared!
Doug
--
'94 945t; '95 854 base; '05 S80 2.5T







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