Re: E36 323i timing chain rattle

>The problem seems to have moved on, but I'm not sure the first problem >is not there anymore or not. Anyway we are now getting more of a squeal >at around 1500-2500rpm, only when the engine cold and not at tickover >atall. It might be happening at higher revs but maybe drowned out by >Engine noise Definately sounds like metal-metal but not a forceful >connection between the 2. The viscous coupled fan has been removed and >has made no difference. > >Still seems to be comming from the front of the engine, but I thought >outside the timing chain area.

You have a bearing somewhere on the way out. Get some fuel hose in your ear and see where the sound is coming from.

Next I think I'll remove the belt and turn the various wheels by hand to >feel for looseness and roughness. Also run the engine briefly without >the belts to confirm its a belt item. > >I'm now thinking water pump or some other pulley item, PS, Alt, pulley >wheel.

This makes sense, and the hose will tell you where it is.

--scott

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Scott Dorsey
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