B190 Enthusiasts

'90 460, newer alternator, belt looks good. 3 second belt squeal/whine when I start it up then goes away. My concern is a slight "rattling" while the engine is running and a "che, che che, sound. AC works. Was suggested that I spray things, pulleys, 1 at a time and if it stops, that's my culprit, belt tensioner is relatively cheep and doesn't seem that hard to get at, I think I will start their. Any other suggestions or input ? Thanks in advance.

Anybody done this? What do you spray... Or does it matter? Silicon? WD? Obviously, avoid the belt itself. I too have a (not too urgent sounding) bearing (or something) sound coming from the front of the engine bay. I've been meaning to put a stethoscope on it

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We had a concerning noise from the engine front in a 1989 and managed to find an honest shop in Coos Bay. It was a problem with the serpentine belt. It had been replaced by the wrong belt and there was very little scope to increase the tension. Stretching the limit it was able to stop the noise about 8,000 miles ago. Thje mechanic noted that the pullies should have been cleaned of rust before the belt was replaced. Perhaps checking the tension is the first step in looking into your problem

Abie Sea wrote:We had a concerning noise from the engine front in a 1989 and managed to find an honest shop in Coos Bay. It was a problem with the serpentine belt. It had been replaced by the wrong belt and there was very little scope to increase the tension. Stretching the limit it was able to stop the noise about 8,000 miles ago. Thje mechanic noted that the pullies should have been cleaned of rust before the belt was replaced. Perhaps checking the tension is the first step in looking into your problem

Sounds like a start, thank you Abie Sea