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..Changed the belts on my R33 a few months back, the first few drives everythings fine, since then it's been making a fsrking horrible squeal. At first when started for a few seconds until warmed but has steadily become worse, now when I start it it squeals like a bitch for at least 5 minutes then when I drive, if I stop (traffic light etc) it starts bloody squealing again, sounds shocking. Visually it doesn't look like a belts slipping, all gauges are fine, power steering, electrics etc are fine.

Belts weren't a genuine Nissan part, but a replacement part given to me by my mechanic. How can I tell which belt it is? Any suggestions? Thanks Guys.

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It sounds like a major bearing which is a major expense and mojor job.  Haven't heard one on an RB but I have on a V8 and your description fits.

....that's what I was very bloody afraid of! Just thought it wouldn't be because it happened at the same time belts were changed.

If it is just a noisy belt and you squirt it with a bit of water it should stop squealing until it runs dry.  

You could find out which is the noisy belt by wetting one belt at a time.

Cheers, thanks for that, i'll give that a try shortly. I Better give it a couple of hours till the neighbours are up!

its probably just a noisy belt, a bit of wd40 or rost off will stop it squealing for a bit. find out which one it is and adjust it up, or all 3 belts. if wd40 doesnt stop the squealing, take the belts off 1 by 1 and start the engine each time until the noise goes away...then free spin the pulleys of that belt and listen for grinding noises. if you get down the timing belt and its still doing it....stop driving it and get it fixed asap.

the belts stretch after fitting, i always adjust them to be just a little bit tighter then normal, so customers dont come back in 2 weeks with this problem.

if you forced the belts on, which you shouldnt have to with ribbed belts but anyway, you may have damaged a bearing... subarus are common for this with their timing belts and tensioner pulleys, they are soooo tight to get on alot of ppl use a screwdriver to pry them on... they dont like it and the bearing shits itself...making a horrible noise.

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