I need help from people with the 5.0 L LG4 engine and air conditioning. My car never had A/C and I added it.

My newly installed A/C compressor does not seem to line up correctly with the other pulleys. I installed all the correct engine brackets, etc. from a 1984 LG4 engine. It seems to be about 1/2 inch too far back towards the engine. The belt runs from the crankshaft to the power steering pump to the compressor. The crankshaft and power steering line up perfectly, but the A/C compressor seems a little off.

I'm worried about the belt chafing on the compressor pulley and exploding when I run the engine (hasn't run yet since I installed A/C). Can anyone check under their engine and see if their stock LG4 has the same slightly crooked compressor setup? Or maybe since I got the compressor off a V6 car, the pulley is a little different? Anybody know?

I'll try posting this in General Engine as well. Thanks!

 

I had a similar problem when I changed my compressor, the new one which the parts book said I needed turned out to be the wrong one, when I took my old one in the parts store said it was for a much older car. it has something to do with the pulley mounted on it, there are two types, one of which sits a little farther back than the other. its hard to explain but one looks like a standard pulley and the other looks like it is a doughnut with a grove on it.

hope this helps

 

I'll check on my car when I get home.

 

Thanks guys. I'm starting to think it's just the compressor pulley too. My shop manual seems to suggest that the pulley can be adusted forward or back, so maybe since it's a compressor from a V6 car, it's just adjusted differently.

Thanks!

 

Kanuck

I am switching to a serpentine belt drive system on my LG-4 if you have a bracket issue causing this problem let me know and I can send you the correct bracket, my belts line up perfect so yes you have a problem