Date: Fri, 27 Jul 2001 09:56:31 -0400 From: jnopsamail.com Subject: Re: 9000 valve noise
check the timing chain and the tensioner, also run a compression test on the cylinders, the "T" of that vintage has an inherent problem with number one cylinder (closest to the right hand side) running hotter than the rest, if you have to pull the head check it for piston chips around the top above the ring. a small chip won't hurt you unless you drive it hard (constantly going above 5k rpm). also have a competent SAAB mechanic check the valve lash. if it's off you may have carbon buildup on a valve seat. if it were me i'd try a pint of marvel to an oil change. i'd also run a couple of tanks of high octain through it and drive the engine above 3k rpm for 50 miles or so. this will hopefully burn the carbon off the seats if that's your problem. Gadget wrote: > Hi > I've got an '86 9000T that's just started making a big racket in the > valve train area. I had the mechanic down the street take a look and > he said that one, or more, of the valve lifters were bad. Cost?? Just > $27 > each, and all would need to be replaced. > > Talked to the local Saab mechanic and he said that it can sometimes be > fixed by adding Marvel Mystery Oil to the engine oil. Anyone out there > had this problem? Suggestions for a fix?? > > Thanks, > Jack
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