Date: Sat, 19 Sep 1998 18:25:41 +0100 From: "Tim Ricketts ,Wales, UK ." <rickettsnopsamil.com> Subject: Re: Removing balancer shaft chain on 9000 turbo
Chris Wilson wrote: > > Symptom:Very loud whining whirring noises from timing > chain area of 1995 Saab 9000 turbo automatic.At > first,noise seemed to be coming from auto > box,(yeah...really),so I pulled the > transmission.Stripped,cut open convertor,no problems.Ran > engine with box out of car,and noise is still there,but > less severe.It seems with the box on,the resonances from > the flex plate are worse.Box is now back in car. > > Pulled cam cover,and,as far as I can tell,timing chain > is OK.Probably it's balance shaft chain.Car is UK 2 > litre.Definitely has balance shafts.. > > What's the easiest way of pulling the timing cover? I > don't want to remove the head if possible,already spent > way too long on this job.Can I drop the sump a bit,and > wangle it out,with the head still on? > > Thanks :-) > > -- > > Best Regards, > Chris Wilson > http://www.maximum-bhp.u-net.com Chris , never done this job myself so can't help much , but I remember my local saab agent telling me to be very carefull about tightening the timing chain cover to head bolts.Apparently even when using the recommended torque the cover can split , so take it easy !!! As regards the noise, it's not the oil pump is it (cavitation ? ).Just a thought .Best of luck , Tim.