Thread: How many timing belts/chain in a 2.7L D4

Three :-) Front that drives the camshafts off the crankshaft plus a high pressure diesel pump which has a belt that is driven off the rear of the left hand camshaft.
The third is your accessory drive belt aka fan belt. Up to you if you change that at the same time.
Yes I’d do water pump and the timing belt tensioners and idlers too. Having suffered from a leaking crankshaft oil seal I’d change that too while I was in there.
Good luck. Oh forgot. Some will recommend taking the body off to do it, others will do it body on.

Front timing belt body on, rear fuel pump belt body off.

Originally Posted by loanrangie

Front timing belt body on, rear fuel pump belt body off.

Not strictly correct. The rear belt is doable body on, it’s just difficult. There’s a good guide by Disco Mikey on disco3uk on how to do the rear belt body on. I think it might be next level hard on the 3L however.

Originally Posted by DiscoJeffster

Not strictly correct. The rear belt is doable body on, it’s just difficult. There’s a good guide by Disco Mikey on disco3uk on how to do the rear belt body on. I think it might be next level hard on the 3L however.

Like the gynecologist who changed his sparkplugs via the exhaust pipe

Originally Posted by loanrangie

Front timing belt body on, rear fuel pump belt body off.

Not on a 2.7.

Went through the same exercise, there are basically 2 belts one at the front and one at the rear.
most shops quote with body on, no need to take the body off though the rear belt is difficult with limited access and view. Price can varying depending on what else gets done. Most do, do the water pump while doing this job but that just adds another approx $100 for the pump so worth doing.

Yes do all belts

Yes do water pump as a cheap part and no extra labour

Also do the plastic cooling junction part ‘Water Connector’ on top of the 2.7D engine that should be replaced 7-10 years before it cracks and cooks engine. Cheap part and all the bits you need to remove to access are already off.

For the cost consider both the connectors in this picture.

Maybe JC or Dazza can confirm that the D4 body is different around the pump which makes it difficult to access.