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Re: In the middle of doing the balance chains and Posted by JustinHiFi [Email] (#829) [Profile/Gallery] (more from JustinHiFi) on Wed, 8 Sep 2004 20:50:45 In Reply to: In the middle of doing the balance chains and, JH, Wed, 8 Sep 2004 19:05:42 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Well with only 54k on the engine, I would hope things have not gotten too bad. Anyway, about a month ago I did all the timing sprokets, guides, chain (reused tensioner) and all the BS sprockets, guides, tensioner, chain, oil pump and main front seal...However, my '91 9kT 5spd had 297k on it (302,200 now) After taking everything off and inspecting the old gears to the new ones (I got an entire BS kit from ScanTech and all timing components as well) I figured I would replace everything since I was in there regardless of wear.
From what I could see, the BS sprokets were not more than half worn. I purchased the car with 280k and an unknown servie history, so I do not know if they have been done before. The timing chain was rapping and the tensioner only had 2mm left of travel before service.
After replacement, things are quiet and very smooth. APC is not cutting boost back to base boost...I think it was picking up timing chain noise as knock ;-) MPG went from 27 to 34 HWY.
If it was me, I'd do everything to be safe...but that is my thoughts on doing any job. Also somewhat depends on your expected life out of this car...how long you going to have it?
JustinHiFi
posted by 205.133.1...
_______________________________________ JustinHiFi Strictly Saab Inc. Melbourne, FL Current: -1991 900 S-PG MT -2001 9-5 Wagon AT -2006 9-3 SS AT Past: -1964 96 2-Smoke MT -1967 96 v4 MT -1983 900 Turbo MT -1985 900 SPG MT -1988 9000 Turbo Black MT -1988 9000 Turbo White AT -1990 900 SPG Red MT -1990 900 SPG Black MT -1991 9000 Turbo MT -1991 900 SPG Red MT -1992 9000 Griffin AT -2000 9-5 Aero Sedan MT -2001 9-5 Aero Wagon MT -2008 9-3 2.0T Sedan AT
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