Quote:
Originally Posted by 97 SL320
I didn't listen to the vid. Mist some water on the belt, if the noise goes away you have belt noise. The pulleys get glazed and make a chirping sound. The occurs more often on flat belt system where the smooth back of belt idler has more surface area.
Sand the pulley with 80 grit paper to make a slightly roughen the V grooves of the pulley.
As for a pulley failing, the only way to tell is remove and look for cracks. On a steel pulley there will generally be a line with powdery brown rust along the crack. This is from fretting of the crack.
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It isn't a chirping noise but it's low pitched vrrrrrrrr vrrrrrr vrrrrrrrr noise. I just looked at the water pump pulley and the pulley does have lateral run out with the engine running.
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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily
1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair
Don't forget to grease the screw and threads on the spring compressor.
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