Date: 24 Jan 2005 15:29:33 GMT From: Dave Hinz <DaveHinznospamcop.net> Subject: Re: possible driveshaft or CV problem with my 1982/83 900S
On Sun, 23 Jan 2005 04:13:54 +0000 (UTC), Craig's C900 Site <c900nospam.apana.org.au> wrote: > Hi everyone, > > My 1982/83 C900 seems to have developed a problem with the left side > driveshaft/CV assembly and I'm trying to work out what it is... > > I've tried the usual way of testing for a defective CV joint but that hasn't > given anything conclusive. When driving normally there is a noticable > metallic clunk with every revolution of the wheels, and this become more > audible under heavy braking and if turning. It _could_ be a rotor, I've heard of (but never owned) a car where the rotor can flex and behave as you're describing while turning. It was explained to me at the time but I don't remember enough about the details to pass much on. This was in the context of a V4 Saab 95/96/97, which has much thinner rotors than the c900. > It definitely seems like a CV issue and short of taking the car to my > preferred Saab dealer I'm not willing to drive it now without working out > what is wrong. Don't want things to go from bad to worse out on the road > without some idea on what is happening. 8-) Well, do you have another c900 you can use as a donor? Swapping out the driveshaft isn't a bad job at all, an afternoon of work at most. Gets both likely suspects out of the way. Keep the balljoints on the wheel end, leave the tie rod end on the steering rack end. > I'm going to lift the front of the car tomorrow and pull off both front > wheels to get a better look at what's going on behind the brake gear, but > the left-side outer CV boot is definitely cactus, so the outer CV might be > bad especially if because of the boot being broken the CV has become > contaminated with dirt or small rocks Yes, that's bad, and an invitation to being stranded on the side of the road going exactly nowhere. Been there, done that. (well, not the "driving with a split boot" thing, but the dead CV joint = not moving thing). Start with that CV, likely you'll need a replacement. That may fix the noise as well, it's at least reasonably likely. I wouldn't drive too many more days with a CV that may be making noise and does have a split boot, unless you have towing insurance and warm clothes in the car. > In the interests of completeness I have been pricing up sources of CV joints > and complete driveshaft assemblies just in case, but hopefully it's just a > CV and not something more serious. What kind of prices are you getting? I haven't bought a CV in 10 years...
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