Date: Tue, 30 Sep 2003 07:57:14 +0100 From: Grunff <grunff232nopsam.com> Subject: Re: crank pulley- unbalanced?
John B wrote: > A friend and I tried to change my '92 900's crankshaft pulley this weekend. We > ended up failing, because we didn't have a 27mm socket shallow enough to get > between the pulley and the firewall (honestly, I've never even seen one that > shallow- how do people do that?). You can buy them, but I cut one down. Very useful thing it is too. > In the process of reassembling the > pulley, there was another problem: we broke one of the 3 10mm bolts that holds > the AC pulley to the crank pulley. So that bolt is missing the head and about > 1/2 of the threads. > > The car runs fine, but I'm concerned about the fact that the crank pulley is > now slightly asymmetrical. Is this imbalance significant enough to worry about > it damaging the crankshaft? Do you mean the imbalance caused by the broken bolt head? I doubt you have anything to worry about there. But are you driving the AC belt off that pulley? If so, I think that's asking for trouble. > Also, one more thing: the new belts we put on seem much more audible than the > old ones-- they make a sort of whistling/whining sound that I didn't hear > before. Is this indicative of some problem (perhaps belts are too tight)? Or is > it maybe because the new belts have teeth on them and the old ones didn't? New belts often make a whirring noise, but do check that they're not too tight. A quick spray of belt dressing wouldn't do any harm either. -- Grunff
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