Resolved
 

Replaced this pesky tensioner pulley today - 65mm x 21mm (x 17mm hole).

Part I used was labelled 2187-ST2.

Had to remove the A/C belt, then the tensioner pivot arm retainer bolt (M6) on the rear of the tensioner assembly, then slide the tensioner out far enough to get at the axle bolts (24mm rear and 16mm front). These axle bolts had been assembled using loctite and I should have probably heated the bolts before removal. Once the old pulley was off, I was left with this: -

http://i49.photobucket.com/albums/f2...psk0pglyha.jpg

I wasn't able to slide the tensioner arm completely out because it wouldn't clear the fan shroud, so I worked on it in place. Here's all the parts, old pulley on the left, new one on the right: -

http://i49.photobucket.com/albums/f2...psdq9edlpk.jpg

New one installed (using Loctite 243 on the axle bolts) along with the A/C belt: -

http://i49.photobucket.com/albums/f2...psvercqvgg.jpg

Did the Oil Service too (Castrol Edge 5W-30 A3/B4) - boy, do diesels ever make the oil dirty!! :yikes:

Ticking off another task - the list is slowly getting shorter... :thumbup:

Hi. Strange that you have 65 mm wheels, all wheels in me car are 70mm and it is build 1. april 2003. I took the fan off and the schrouder off then it was good asses to the wheels and the belts.
Regards from Iceland
Gardar

I guess we can put the difference down to one of the many minor changes between your M57D30 135kW engine and the later M57TÜD30 160kW engine I have.

Thanks for your help, Gardar. :thumbup:

Belt number
 

Hi Skier 1 , I am glad you answered my query regarding belt tensioner, I was thinking I lost the tensioner and the belt on my air conditioner . I don’t suppose you know the size of the belt . The one I did order is too long as it for the tensioner type I’m guessing