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Date: Wed, 30 Jan 2002 23:01:29 GMT
From: "Craig Ross" <saabernopsam.com>
Subject: Re: Balance-shaft chain replacement interval?


The balance shaft problems are often related to over heating which can melt the plastic guides for the balance shaft chain leading to failure. "Johannes H Andersen" <johsnopsamanytime.co.uk> wrote in message news:3C5841E4.257ABBB3nopsamanytime.co.uk... > > > EricL wrote: > > > > Hello all! > > > > I'm a long-time Saaber and a competent mechanic, but don't have any > > experience with the newer models. The wife and I are both buying Saabs with > > the 2.3l motor (9000 for me, 9-5 for her). I've heard rumors that the drive > > chains (and related components) for the balance shafts have a fairly short > > lifetime, and I'd much rather replace the chain and whatever goes with it > > *before* it breaks and trashes the inside of the motor! > > > > Can anyone out there offer any advice on when the chain should be replaced, > > and what other bits should be replaced at the same time? Also any other > > weak spots on the 2.3, other than DI cassettes and head gaskets? > > > > Thanks! > > > The timing chain rarely breaks, it's a proper chain, not a rubber belt > as found on lesser cars. The chain becomes noisy when worn, then you should > replace chain plus sprockets. Mileage vary, but around 100k miles or so. > > Johannes

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