Bumpyride Posted January 30, 2012 Share Posted January 30, 2012 Gents 200 tdi engine - no major problems todate. Recently a squeeking noise at start has been getting progressively worse. When idiling there no noise only once accerlator is depressed about 1/4 of the stroke. Thought it was the alternator belt slipping, but.... Really gets quite loud tonight. Nearly enough to pull over. After 5 mins it stopped, so thinking along the line of something warming up. engine oil fine and doesn't sound like an engine fault, more aulixary. Suggestions Water pump? Viscous fan - this is usually locked on so runs constantly regardless of engine temp. thanks in advance Quote Link to comment Share on other sites More sharing options...
Jack Sugden Posted January 30, 2012 Share Posted January 30, 2012 I'd say your water pump is on it's way out. The pump can get quite noisey when the bearing starts to go, mine went tuther week Quote Link to comment Share on other sites More sharing options...
poohbear Posted January 30, 2012 Share Posted January 30, 2012 Try giving each belt a little squirt of WD40 to identify where the noise is coming from, then move onto alternater bearings. Could also see if there is any play in the water pump shaft. HTH Dave. Quote Link to comment Share on other sites More sharing options...
Bumpyride Posted January 30, 2012 Author Share Posted January 30, 2012 cheers, checked alternator belt - there is play, but under no load no sweeking. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted January 30, 2012 Share Posted January 30, 2012 Pas pumps also a possibility, I had one on my 200 pack up but it's sieze up, then go again for a bit, then seize again.. Quote Link to comment Share on other sites More sharing options...
farmerboy_y2k Posted January 30, 2012 Share Posted January 30, 2012 viscous fan bearing? mine started making a fan belt type noise and it was the fan bearing. Ought to fit the new viscous unit thats in my kitchen. Quote Link to comment Share on other sites More sharing options...
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