detroit_903

iTrader: (8)

Recently I just removed my ac compressor and replaced it with a A/C delete pulley at the dealership. I'm running those smaller pulleys made from MARCH. I already was running a smaller belt but need one even smaller. I had to order one from NAPA that was the next size down from the belt I took off which was about 5/8 difference and that one is to tight - to where you have to pry it on with a screwdriver. I was wondering for anyone who is running march pulleys with a a/c delete pulley on there LT1 engine what size belt do I need. - A part number would be great - Mike

LT1MAN

iTrader: (6)

the a/c delete pulley shouldn't effect the length of the serpentine system, so i would say get whatever size you are supposed to use for the march system.

detroit_903

iTrader: (8)

Well that's the problem. The belt that I was using with my march pulleys will fit but it needs to be just a little tighter. I can still move the belt off the pulley. That's why I need another belt. I dont know what the problem is - I also thought my belt would fit but it dont -

19mike84

how old is the tensioner?

19mike84

i have the same set up and it works fine

detroit_903

iTrader: (8)

Not sure. I really dont think the problem is the tensioner. The belt works perfect - nice and tight with the ac compressor installed but with the ac delete pulley in it's place the belt just needs to be a little tighter. The pulley on the a/c delete is smaller then the a/c compressor pulley.

1mean96ss

I had the same problem, you need to get a new stock length belt and your problems should be solved. I had a gatorback belt with the ac compressor and when i put the delete pulley on it was not tight enought and could be slid right off the power steering. A new belt that is stock length should work fine.

detroit_903

iTrader: (8)

That's the same belt I'm running right now. So just buy a new belt maybee a different brand - would that work?

1mean96ss

Yeah try a different brand, i think the stock belt with the ac compressor just streached it out over time, that why it wont fit as tight as a new one

crazyhorses

iTrader: (1)

I have that same set up and I did have to get a smaller belt. Just like you, I had the march pulleys on their and had to get a smaller one because the one that was one there was a tad too loose. I didn't change the belt, it was done when the engine was rebuilt. I'll check it out for you later on today or tomorrow and post it up.

detroit_903

iTrader: (8)

Cool - yeah let me know - If theres maybee a part number on that belt somewhere