Alternator mounting to front of 24V V6 engine

[Allora#2]

Hi Andrew,

i found this pic!
i hope it helps.

saluti Enzo

[AndyH]

Hi,
I tried Sando's solution first.... Simple is good.

Bit of faff getting the belt on and once on seemed a little slack.

Took up all clearances on mounting bolts.... nipped the bolts up and I'd say the belt is pretty much perfectly tensioned.

[Sando]

Did 20k miles like that too. I've done the same again with my new engine.
It is a bit of a pain to wind the belt on, but saves a lot of aggro and keeps the loom as it was.

[turbonutter]

So How tight is that belt?
Just asking as I had mine like that, but with the alternator on the front & a manual tensioner - it slipped on the crank pulley when the engine was revved, probably due the the rapid acceleration of my engine due to the flywheel clutch combo (It didnt slip while driving) It wasnt a problem before, but then I didnt have the water pump, so had a better wrap on the crank pulley.

[AndyH]

It feels about the same as when it was through the auto tensioner, maybe slightly tighter.

[Sando]

I've not had any problems Neil, even gone one less rib on this new belt as its doing far less work than the original set up with air con and PS.
easy enough to get a belt slightly smaller if you wanted it tighter. I just experimented to get the length and tension that worked for me.

[Jeff]

Just to add my three penny worth I reengineered it like this:





Seems to be fine so far, but then I've hardly gone that far...

[turbonutter]

Rob, I have a mechanical tensioner on mine, so can get the belt as tight as I like - Maybe i am just not tensioning it enough....
Fitted a couple of idlers today, to get max wrap on the pulleys.





No slip now when I rev the engine, but took it for a drive and the belt jumped 1 rib away from the engine on the crank and water pump pulley.... Tomorrow I will try a different belt and different routing...