Thread: Squeeky Tdi300 water pump drive belt?

Originally Posted by White 110

I reckon this could be the problem to a "churping", "chattering", "squeeky" sort of noise that has just started on my 300Tdi following 4 days on Fraser Island. Most noticible at idle. Has never made a sound previously.

When we're discussing the "belt", are we talking about the Serpentine "Auxiliary Drive Belt" that wraps itself around most of the ancilary stuff rather than the actual Timing Belt??

Is chucking in a new one the easiest solution? Looks like a pretty straight forward job to install one in a Defender?

If you are going to replace your serpentine belt, don't forget to check the three idler pully bearings while you've got the belt off. They are less than $10 each and are worth replacing (or even regreasing) while the belt is off - one of them could even be the source of your 'churping".

do a search, the squeaky belt thing has been discussed before.
Some brands seem more prone than others to it. Funny thing is that most have found Dayco to squeak more than Gates, but I've found it the other way round.

Some have hypothesised that it's the different form of the 'V' between the two major brands (Gates and Dayco)
The other thing that can contribute to it is the nylon centre guide in the tensioner wearing and allowing the tensioner to track off true. the only recourse here is tensioner replacement.