Hi there.
I have a 2010 Fiat Ducato 2.3 MultiJet and I'm struggling to work out how I replace the auxiliary belt. I don't understand how the tensioner works. I managed to get the original one off by releasing the bolt but getting a new one on is impossible. Any advise/instructions? I didn't use any special tools, just released the bolt holding it on :/
Thanks.

Are you trying to bolt the tensioner on with the belt on?

Tensioner is bolted on with an allen key nut. Belt won't go over the tension pulley so I assume I need to adjust it somehow. Manual doesn't state how to do this except to loosen tension using a "special spanner" which I didn't do, I just unbolted it :/

Just had another go, flip this is driving me mad, it's as if the belt has shrunk !!!

Do I need to move the tensioner out of the way? Even if I did, I'm not sure how I would get it back in it's position or even if I need to re-tension it - doesn't seem to be any movable parts.

Anyone done this on a Ducato 2.3 Multijet? My Wife is seriously pecking my head to move the van !!!

This is said tensioner. Anyone ever fitted them to a Fiat Ducato and how do I tension it?
I've tried bloting it to the body, slackening it, then tried to pull it down to move tension it (then tighten up the bolt). Fit belt, then release bolt to release tensioner. BUT, I can't get it to move. Not entirely sure if it should. Please help. I need to get the van off the road

Dezbo said:

it's as if the belt has shrunk !!!

Click to expand...

Sounds like its a stretchy belt that has no tensioner. If so you can get special tools to stretch them on and off, but some people do it with a big screwdriver

I've not had to tackle this job so I've no idea but, studying your photo, it does seem from the scoring marks that the part of the tensioner which supports the pulley swivels around the central casting (which presumably is the bit that is bolted to the engine?)

If you can work out how this movement might occur this should give a clue to the tensioning process, or it might be as Peter says and, as the belt is stretched over the tensioner, it will then swivel in.

Take off the belt put back on the tensioner. Then when you're fitting the belt put a ring spanner on the tensioner pulley bolt and that will allow you to lever the tensioner out of the way to fit the new belt.