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Water pump and alt conversion to single belt

Posted: 28 May 2026, 12:00
by shampooefficient
I'm looking at this engine and realising it has some subtle differences to the original. And some not so subtle. Next up is the alternator wiring.

Is there anything stopping me swapping a single water pump pulley, alternator from the same engine, and bottom pulley? It's a 1.9/1.6D mishmash right now and if I can simplify instead of buggering about with the shims...

I have the original alt, WP pulley and bottom pulley from the old 1.6D so it would all match each other.

Re: Water pump and alt conversion to single belt

Posted: 29 May 2026, 06:22
by silverbullet
Thats an alternative engine type of enquiry.

Re: Water pump and alt conversion to single belt

Posted: 29 May 2026, 06:34
by Rik
My 1.6d had a single belt when i bought it, but i switched back to double belts. The single belt made less contact with the water pump so it squeaked all the time.

Re: Water pump and alt conversion to single belt

Posted: 29 May 2026, 08:09
by shampooefficient
Rik wrote: 29 May 2026, 06:34 My 1.6d had a single belt when i bought it, but i switched back to double belts. The single belt made less contact with the water pump so it squeaked all the time.

Duly noted! Thank you.

Re: Water pump and alt conversion to single belt

Posted: 29 May 2026, 09:14
by ZsZ
I would go with a 1.9D setup with the 90A alternator and its bracket.

Re: Water pump and alt conversion to single belt

Posted: 29 May 2026, 19:49
by Oren Kipnis
ZsZ wrote: 29 May 2026, 09:14 I would go with a 1.9D setup with the 90A alternator and its bracket.

Not forgetting the one way clutch pully on the alternator to reduce noise and vibrations.