Engine Size: 6.5
Refrigerant Type: 135
Country of Origin: United States
I have the " end caps " off of the compressor but I can't get the " body " split apart so I can replace it's "O" ring. I would appreciate some ideas on how to break the " body " apart.
This compressor was in great shape , working well but would lose charge after a couple of months, everything else in system was ok, oil was coming from compressor body.
Thanks in advance , Jerry
I put the compressor body (one half) in a vice, then use a vice grip chain wrap and gently wiggle it back and forth until it comes loose--make sure all the pistons stay in one cylinder and be careful not to let any of the shoes or balls drop out-- they can be a pain to put back and they are "selected" for size- so they must be put back in proper places.
If you are a brute - you can hold the lower half cylinder (one with the shaft sticking out)- with shaft pointing down- then tap end of shaft against a good firm surface- like a block of oak wood.- the cylinders will separate- but again be careful not to let parts fly.
Also the very first step I do is to scribe a line down all 4 four components so that I am sure to put them back in proper orientation-- you only create a "no pumper" once in your life before you realize to do this- it's no fun to put it all back together- mount in on the truck- and it does not pump.....
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......
Hi GM TECH
Hi GM TECH,
Thank you verymuch for the suggestion and information !! I had considered attempting to " drive " them apart by holding the unit with the shaft pointing down then tapping , ( although I'm sure steady pressure would be best ) on the shaft at the other end but I wasn't sure if that would be ok and not damage parts inside. I have scribed all parts where they come apart.
This truck has spent it's life in the Las Vegas area which as you know has very low humidity and little rain so the compressor is in great condition with no visible corrosion
I'll give this method a try , " sounds to me like it should work " I'll let you know how it al comes out .
Thanks again GM I realy appreciate your help !!!!
I put the body opposite the long shaft horizontally in a vice and attempted to rotate the part of the body with the long shaft sticking out, I was using a chain device with a breaker bar with no result , " maybe it's keyed, I'll check that " . With the body horizontal in the vice output end. , I then hit the short shaft with a hammer and socket and it didn't move, the second time I hit it the long shaft end separated and opened approx 1/4 inch ( perfect ) , I then opened it approx an inch and a half more, no parts coming out etc, I'm now cleaning the "O" ring groove and mating surface and ready for reassembly.
What torque would you recommend on the long " body " bolts ?
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