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Re: Whining noise from timing/balance area.
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Posted by Drewski [Email] (more from Drewski) on Fri, 12 May 2006 11:13:48 Share Post by Email
In Reply to: Re: Whining noise from timing/balance area., Dean, Fri, 12 May 2006 08:38:20
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Thanks for your reply, in answer to your questions...

1&2. I did not drop the oil pan. Under the valve cover and in timing area everything looked quite clean with no sludge, so I left it alone.
3. I did not pull the oil pressure relief valve but I will check it for signs of scoring. There was no issue here before the work, but perhaps I contaminated the inside when working on it - so I'll check it out.
4. I'll also check the oil pressure light - I assume that you turn the ignition on, the lamp should light and then after engaging the starter the lamp will go out - right.

Again thanks, this is very strange and slightly bothersome. I have spent a lot of time on my SAAB, recently so I might live with the whine for a while.

Maybe you could comment on these ideas - If they are stupid, tell me, you won't hurt my feelings.

1. As a relatively easy method of maybe diagnosing the cause, I thought about removing the tensioner and backing it off a couple of clicks and then reinstalling it without spring. If I notice a change in the whining sound, this would tell me which system is the problem.

2. I was also considering as another option - down the road... I've read on the board that these engines run reasonably well without a balance chain. I'm fairly certain its either the balance or timing chain (or related) so if I just cut out the balance chain it would eliminate half of the probable causes :)

Drewski

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