i have a 1990 GMC Jimmy with a 350. PS, WateR pump, Crank, fan, AC, ALT. I was wondering if some one has a diagram on how the belt should go on. I have looked on gogle cant really find the one that has the same set up as i do.

Thanks

 

There should be a diagram under the hood...

providing the sticker is still there and readable. Although, it's not too hard too figure out on your own. Pullies with grooves get the side of the belt with groves. Smooth pullies get the smooth part of the belt.

 

Pick the closest:
Ignore the red marks

But you dont really need a diagram once you note two givens
1. the relationship of the wrap from crank to fan pulley is always the same.. belt wraps up from driver side of crank around pass side of fan pulley.
2. You never need put belt 'over the fan'
- start from pass side, make loop of belt, put loop around crank pulley first then wrap back of belt around water pump pulley to lowest pulley on driver side.
From then on, easy. Back of belt always UNDER a smooth pulley




from: Need Serpentine Belt Diagram for 1994,350

 

Thanks