Thread: Serpentine belt tensioner, 300TDi

Hey Langy, the stock Marelli alternator has been tossed for a 100A Bosch.
When I bolted it on I scored some brackets from a dunnydore and used those.

The modified upper brackets have elongations in them, so it can move enough for belt tension. Just have to be careful the engine doesn't strike the intercooler pipe.

So it is adjustable, but not by heaps. So I will also use that damn tensioner to provide a little adjustment as well.

Originally Posted by up2nogood

Thanks for looking it up for me, Ron.

I did remember pricing the idler at around $100.

Have decided to go nuts and have tossed the fan and pulley as well as the idler mech. Time to fit those EF Ford fans I've had lying around. This will also give me room to install the engine oil cooler I've been wondering where to put.

I'll just get a shorter belt and make the alternator be the tensioner.

Few less things to f*** up!

Originally Posted by up2nogood

Hey Langy, the stock Marelli alternator has been tossed for a 100A Bosch.
When I bolted it on I scored some brackets from a dunnydore and used those.

The modified upper brackets have elongations in them, so it can move enough for belt tension. Just have to be careful the engine doesn't strike the intercooler pipe.

So it is adjustable, but not by heaps. So I will also use that damn tensioner to provide a little adjustment as well.

PICS!! man PICS!!!!

Originally Posted by up2nogood

Hey Langy, the stock Marelli alternator has been tossed for a 100A Bosch.
When I bolted it on I scored some brackets from a dunnydore and used those.

The modified upper brackets have elongations in them, so it can move enough for belt tension. Just have to be careful the engine doesn't strike the intercooler pipe.

So it is adjustable, but not by heaps. So I will also use that damn tensioner to provide a little adjustment as well.

Ummmmm ???
Could that be why it's too tight ???

Maybe ! ! !

also check the diameter of the pulley(s) ???

Stevo

Nah, alternator position was within a poofteenth of being the same and I used the original pulleys. The adjuster was almost at the very end of it's adjustment with the too long belt, so the tension on the belt was too much even though it was about out of adjustment. Mongrel thing.....

So no dice on that one!

Will scoot up some pics once the belt arrives. It's a special order, 7pk 1375.......

I pulled a new one off the shelf this arvo at my local LR specialist's workshop.

The Dayco APV1004 box was also labelled ERR4708.

Thanks Ron, looks like the wrong part was put on my car....

Anyways the bearing in the timing case is rooted and I aint pulling that off until the next cam belt in around 60,000kms........

So we are set on our course. Plasma cutter **** itself, so couldn't finish making some brackets tonight.... More delays...