Serp. belt length

[broc944]

I am beginning to hate this on board air system. Current issue is my belt, it is to short. Hoping someone else has done the same thing as me so I do not have to guess at what size belt I need. 350 TBI, 91 V2500 Burb, I removed my factory compressor, am using a Kilby mounting plate for The York. Belt is way to short to wrap around the larger pulley of The York, then the Harrison Compressor I had previously. Any help with belt sizes or numbers would be greatly appreciated.

And I thought this was going to be one of the easier mods that could be done, nothing but problems so far .

 

[garlicbreath]

This might be a bit hard to do by yourself but run some string around the pulleys in the normal belt routing, but you'll need to move the tensioner a bit. Then measure with a tape measure. I usually buy 3 belts, one exact, one big and one smaller than the measurement then return the 2 that don't work. I buy 2 belts of the right size and zip tie one under the hood so I always have a spare.