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Discussion Starter · #1 ·
I tossed my old original compressor and have what I believe to be the sealing rings that were used to seal the hose manifold to the back of the compressor. Does anyone know if the original compressor had black o-rings that fit into a macined grove on the original compressor? The new unit does not have groves but rather a seal kit that uses a universal mix and match seals that are placed in the same area I think the o-rings were.

There are also some reducers, I don't know which way the correct one is supposed to go in. One of the ends has a machined shoulder as if it were for alignment?? It will go in the hole either way. Not sure of its purpose.

Am I supposed to put o-rings on the hose (too) before it is attached for a double seal?

Thanks
 

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Discussion Starter · #2 ·
Damnit - it is 103 here today and I am not about to break this thing in w/o A/C. Someone has to have been through the process.

Where are the A/C specialists!! :dunno:

Thanks :cheers:
 

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Hi,

The newer types of a/c compressors use the sealing washers rather than the o-rings. Did you purchase a brand new compressor for your GN from someone?

If so, you will use the gold/yellow washer on the larger side of the port on the back of the compressor (this is the washer that is the thinnest and largest in diameter) On the other side, you will use either the green or the red washer. The trick is to make sure that the tops of each washer are parallel (the same height coming off of the back of the compressor, where they sit).

Essentially, you are making sure that the hoses manifold block will be flush on both sides.

You do not need to use the o-rings, as the sealing washers are there to take their place. Also, the kit you purchased probably had some shiny stainless steel ends that fit into the hoses... throw those away. They are used to align the a/c hoses into the back of the compressor. The reason you don't want to use them is that they have a tendancy to get into the compressor when falling out of the lines and ending up locking the compressor up.

Hope this helps, and if not, give me a call at the number in my sig.

Brett
 

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Discussion Starter · #4 ·
Hi Brett - thanks for the info. Most helpful.

I already had a new Delco compressor and dryer from a while back and it is now time to use them. The old compressor leaves puddles of oil on the floor.

I have just replaced the condenser and will use a new AC Delco in-line billet filter / orfice thingy. I am going to clean out the evaporator with some flush as I can see black (carbon like residue) in the piping.

Thinking of going with Freeze 12 and PAG somthing..... bottle is not in front of me

Any other tips? If too much to type I can always call :yup:
 
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