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Date: Sat, 13 Nov 2004 00:44:25 GMT
From: Dexter J <lamealameadingdongnospamlamelame.org>
Subject: Re: changing Timing chain and balance chain


Salutations: On Fri, 12 Nov 2004 23:14:19 GMT, Dave <davetempnospamueyonder.co.uk> wrote: > Many thanks Dexter for all the typing!! > I have decided to have the work done as the body is realy good and front > shocks and brake disks have been replaced in last year and rest of car > is in > good shape, so fingers crossed it should run on for a few years yet. My > reasoning is I cant sell car for much with engine faulty, and to replace > it > with a similar age one I may end up with the same and / or other problems > and I cant aford a nice shiny new one yet! > > "Vesku" <noveskuspamnospammail.de.invalid> wrote in message >> Could the noise come from valve adjusters ? >> >> I think that's quite common cause for cold start noise in those engines. >> >> If it would be from chain why quiet when warm ? >> >> br Vesa >> You appreciate that any advise presented in this form is only offered with all the usual disclaimers.. :/ .. Anyway - brother Vesku may well be moving along a correct line. It may well be that you are not making enough oil pressure to fully apply the tensioner until the oil warms up enough to thin. The timing chain itself may also be stretched a little and the combination is presenting as loose. If this is the case - the lash noise will sometimes last longer with fresh heavier grade oil. It is therefore vitally important that you have the chain measured very carefully before you close up the case to confirm it is *well* outside of specification. 140,000 miles is a little early for a SAAB timing chain to go loose actually - and thus, you may well be suffering from bad oil pick-up as well. Some 2.3 engines have a problem with wax forming on the strainer or in the pump housing. That said - it may well also only be the balance chain alone as that is a known culprit in a middle aged 2.3 engine. Several folks have had their 2.3's modified to remove the balancers and I may well give it a try when I have to do mine in the aero. In short - you want to know as much about *why* the chain is making noise before you start replacing parts. Very best of luck with it brother Dave - I think you should put in some google time over the weekend regarding this so as to be able to discuss it with your shop carefully. It is at this point that a greater SAAB/Owner relationship can become either a complete paradise as you both get another 140,000 miles smiling all the way to the bank - or - a joy of life sucking vampire from which there is no financial escape short of a loose road flare in the trunk and a no service cell phone zone. Here at alt.autos.saab we always hope it's the former. Cheers. -- Radio Free Dexterdyne Top Tune o'be-do-da-day Tim Tamashiro - All I do is Dream of You http://www.dexterdyne.org/888/155.RAM all tunes - no cookies no subscription no weather no ads no news no phone in - RealAudio 8+ Required - all the Time

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