A bad rap, er, wrap

[Injuhneer]

Have other D1 owners noticed how little belt wrap the alternator has on the A/C equipped vehicles?

100A on that little contact patch? It seems the alternator is the first thing to slip if anything gets on the belt. At 100A I am surprised it turns in any condition other than a clean, dry belt.

So I am thinking about a longer belt and a static idler to get more wrap.

Have others noted this (or even care about it)?

I won't be deleting the A/C compressor to make the change.

 

[pdxrovermech]

are you sure the belt is on right? i've seen many put on wrong where only the top of the pulley make contact.

 

[JohnB]

I put one on wrong once. Made the water pump run backwards.

 

[Injuhneer]

are you sure the belt is on right? i've seen many put on wrong where only the top of the pulley make contact.

Well, I am betting that is the problem here. I looked this and thought it looked silly and surely a 100A alternator couldn't be driven that way.

I found the routing diagram for the belt. There is no doubt that mine is wrong. Funny, the service on this vehicle was done by a dealer near Irvine. Go figure.

Thanks for point me to an obvious answer without making me feel too stupid. :smilelol:

 

[Injuhneer]

You were right. The belt was routed across the AC->Alt->PS rather than AC->Alt->WP->PS.

I shoulda' read the manual, huh?

Thx.

 

[robertf]

did you cut the fan shroud to make it fit that way?

 

[ptschram]

I've been threatening to have the belt routing tattooed on my wrist for more than ten years!

 

[Injuhneer]

did you cut the fan shroud to make it fit that way?

Nope. It was this way when I bought the truck. Since the belts are well behind the fan there is plenty of room.

It seemed ok until the water pump let go (a little leak. The slightest moisture caused the alt to slip). So while replacing the WP I asked here then found the diagram in the workshop manual.

The top section of the shroud is missing from this truck so I do need to replace that.

 

[Injuhneer]

I've been threatening to have the belt routing tattooed on my wrist for more than ten years!

Maybe a rhyme instead?

Over the alternator
down past the water
up around the steering
is where it ought'r

 

[Injuhneer]

Well, here it is on a thread from several years back.

http://www.discoweb.org/forums/attachment.php?attachmentid=12891&d=1151495518

Now I wonder why this didn't show up when I searched on "serpentine" before...

 

[1MITCH1]

I did that once myself. If you put the belt on wrong. It still fits but barely contacts the alternator.

 

[crown14]

There are 3 or 4 ways to do it wrong.

 

[Injuhneer]

There are 3 or 4 ways to do it wrong.

Well I know at least one of those now