Technical Whining engine

[Drinu]

Hi guys,
got a 999cc FIRE engine on mine. About a month ago my mechanic took of the starter motor to service it. He put it back in and it now works fine. However when starting in the morning I can now hear a whining noise coming from the engine. This only happens for the first 3-4min and when the engine is till 2000rpm. After 2000 the noise dissappears completely. It is a whining noise (sorta like a supercharger), not the slipping belt type of noise. Any ideas what it could be?

Adrian

 

[Xen]

Usually some sort of bearing... camshaft, tensioner, waterpump etc. hopefully one of the uno guys might be able to be more specific

 

[(CZ)enda]

Timing belt tensioner?

 

[Chas Uno]

Timing belt tensioner?

:yeahthat:

My Uno used to make a horrible squealing noise only on startup and then it went away after a few minutes, though over time it got progressively worse. I changed the timing belt tensioner and it went away for good.

 

[Drinu]

fixed it.....

'twas the timing belt tensioner...man you guys are really good.

Thanks

Ad

 

[Kalel]

I have a similar problem. Mine wines like a pig that is squealing. I very recently changed my timing belt, fan belt and tensioner pulley also.

Is there a chance something is slipping or could I have had faulty parts fitted?

Thanks in advance

 

[thepottleflump]

Too tight maybe?

 

[Chas Uno]

Don't forget the water pump bearings as those can also squeal.

 

[Kalel]

Seems the fan belt loosened a little after fitting. Moved actuator and now all is good! I have a new water pump so will change that when its warmer!