Name this noise - metallic chattering from passenger - Saab Performance Bulletin Board - Saabnet.com
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Name this noise - metallic chattering from passenger
Posted by Chad88SPG [Email] (more from Chad88SPG) on Mon, 9 Apr 2001 14:11:04
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side of engine that is. Sounds like coming from head/valve cover area. First heard it last week faintly but went on a long weekend trip with prolonged boosting and uphill sprints. Noticed that I could no longer attain high psi in boost. Now, at idle, it sounds like a rhythmic chattering with a slight metallic note, just audible in passenger cabin, obvious with hood up. Car is a modified '88 SPG with many go-fast goodies and about 152,000 miles. Head rebuilt 20,000 miles ago, timing chain/guides never replaced.
So, valves or timing chain or just guides? What's involved?
thanks,
Chad88SPG
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