Re: Diesel like noises - Saab 9000 Bulletin Board - Saabnet.com
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Re: Diesel like noises
Posted by BobS (more from BobS) on Sun, 9 Nov 2003 17:48:49
In Reply to: balance shaft removal advice/feedback..., meng, Sun, 9 Nov 2003 16:53:25
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Had a 92 9000 that did that, and doing the timing balance chain guides sprocket thing did not stop the noise. Also played with the lifters to no avail. Came to the conclusion it was piston slap as it went away when warmed up and others had reported #1 cylinder(nearest chain)would occasionally do this. Since then noticed the later 9000's have a diverter on the waterpump - block coupler, this keeps the cool - cold water entering the engine from being directly aimed at the #1 cylinder. Does a little too much cooling on the #1 cylinder cause piston slap on #1 cyl?
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