Squealing from Cambelt area - Alfa Romeo Forum
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(Post Link) post #1 of 8 Old 20-01-08 Thread Starter
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Help Squealing from Cambelt area

Hi Chaps.

Before I describe the problem with my 147 I have made loads of searches on this site and not come up with the exact similar issue.

My 147 Sele had it's cambelt changed 6 months ago, along with all belts, tensioners and variator.

Recently, on start up in the morning there's a squealing noise coming from the cambelt area.

Important fact is that the noise disappears after the engine has warmed up and doesn't re-occur throughout the day. When it's a cold morning it's worse, but always disappears after about 1 mile.

I notice threads that could indicate a tensioner or the water pump on the way out. I sprayed a little wd40 onto the waterpump pulley and the noise goes away for a few seconds but returns....until it goes when the engine is warm. I've also noticed that the engine temperature sometimes hangs around the 70 mark, not the usual 85 -90 as it has done for years. If the water pump is failing then shouldn't the temp rise?

Six weeks ago the car lost it's power steering fluid due to a split pipe and wrecked the steering rack.

Now, could it be that this incident has also damaged the power steering pump?(not sure where the pump is). Steering feels fine and no more loss of fluid.

Now you now the history, any ideas or advice?

Cheers boys!

Dai.
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Re: Squealing from Cambelt area

could always just be a damp aux belt, that would cause it to squeal.

as for temperature, its cold out, it will take longer. if its not warming up at all i would suggest the thermostat is shot.
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Re: Squealing from Cambelt area

Did they actually change the auxillary belt and tensioners? My car started making a noise exactly as you describe. It turned out that the bearing inside the auxillary belt fixed tensioner was noisy.
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Re: Squealing from Cambelt area

This happens a lot when when new aux belts are fitted
what you need to do is start the car from cold when it makes
the noise loosen the aircon pump and move the pump untill
the noise stops
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Re: Squealing from Cambelt area

If the water pump has failed the chances are the temperature would be too high, not too low. It sounds like the thermostat is also faulty. This is a extremely common problem on TS cars.

Adie, I have never heard that tip before regarding the aircon compressor, can you explain how it works? I would have thought that if the aircon pump was moved, the moving tensioner would have taken up the slack and the belt tension would have remained the same.

Simon.
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Re: Squealing from Cambelt area

Is it a mettallic shriek or more of a squeal?
 
(Post Link) post #7 of 8 Old 21-01-08 Thread Starter
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Re: Squealing from Cambelt area

Thanks for all of your replies.

A damp aux belt sounds a possibility. It was changed at the cambelt change but I suspect the problem with the power steering fluid might have made it damp or......with this wet weather and living in Gloucester I have been going through some big puddles quite a lot..pointing to very damp aux belt.

The sound is more of a high pitch Canary chirp chirp. Stopping when the car warms up also helps point out that the aux may be damp but is drying off in time. I thought it was coldness that could have caused it but wet roads and dampness overnight could also cause it.

cheers mateys.

Dai.
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I'm having this exact same problem. I've removed both the aux belt and the balance belt and it still makes the noise. I suspected the water pump so I changed that, which didn't work. Mines had the cam and balance belt/idlers/adjusters and variator changed in the last year. I'm really stumped with this one. I've even spoke to a couple of specialist Alfa garages and they can't think of anything more.

Any help with this would be greatly appreciated.

Cheers
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