Fuel pump belts

[Airmech953]

As part of my ongoing preparations for registration, I started to change the HP fuel pump belt. The belt that I removed has 85 teeth, the new belt has 82 teeth. I think that the difference is EUR3 to EUR4. Would that be right?

[shack]

As part of my ongoing preparations for registration, I started to change the HP fuel pump belt. The belt that I removed has 85 teeth, the new belt has 82 teeth. I think that the difference is EUR3 to EUR4. Would that be right?I don't know... But had a similar problem.

One kit I bought had the wrong length belt (too short) sounds similar to your issue.

I'm guessing if your are asking EU3 vs EU4 you are on a 2.7 D3?


Cheers
James

Edit: to avoid confusion...

[loanrangie]

I think that's right Dave , there was a change over length.
Best check the old belt.

[discorevy]

eu3 2.7 belt has 85 teeth
eu4 2.7 has 82 teeth
3.0 has 80 teeth and timing marks

[shack]

eu3 2.7 belt has 85 teeth
eu4 2.7 has 82 teeth
3.0 has 80 teeth and timing marksThanks for that.. I've edited my other post to avoid misinformation.

That's really interesting info as our car is a 7A chassis making it theoretically EU4.

I've posted on here before as regards EGR removal on the early EU4...7A chassis.

But I also know our car runs exactly the same engine mapping as the early EU3.. So not really EU4, and it doesn't put the engine light on.

I'll stop there because I'm OT

[discorevy]

Thanks for that.. I've edited my other post to avoid misinformation.

That's really interesting info as our car is a 7A chassis making it theoretically EU4.

I've posted on here before as regards EGR removal on the early EU4...7A chassis.

But I also know our car runs exactly the same engine mapping as the early EU3.. So not really EU4, and it doesn't put the engine light on.

I'll stop there because I'm OT



I Imagine they were still fitting the older engine to the MY 2007 because it must have still complied with EU4
which might mean Siemens injection = 85 teeth and bosch = 82 teeth.
Does yours have Siemens injection?

[shack]

I Imagine they were still fitting the older engine to the MY 2007 because it must have still complied with EU4
which might mean Siemens injection = 85 teeth and bosch = 82 teeth.
Does yours have Siemens injection?As in Siemens SID201/204 VS Bosch EDC?

Yep, but my data leads me to believe that the 2.7 D3 *genuine* EU4 was still running Siemens.

It was only when the 3ltr was introduced that they went Bosch. I would love to be corrected on this though if I'm wrong.

And as far as being EU4 compliant that's entirely possible, it's happened many times that an engine is upwards compliant.. Or very nearly so, then gets minor tweaks.

[discorevy]

No , you're probably correct, I was probably confusing the 3.0 , as well as them changing to the first redesigned pump around 2007, think there was more than a couple of fires that caused this to happen

[Airmech953]

Thanks to all for confirming my doubts. New 85tooth belt bought and fitted.
Does anybody want a new, unused 83 tooth belt kit?

[PerthDisco]

A recommendation is to cut off the old belt don’t undo the bolt to release the tensioner. People have damaged the last threads this way and there is no way of getting in to clean up threads with the body on. A nightmare scenario.

I used some short wire clippers which chomped through it easy. Remove the tensioner after the belt is gone.

Mark the orientation on the old belt first so you match to new belt.

[Airmech953]

Thanks for all the advice. Job done now, just going to tidy up the wiring looms.