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Author Topic: compressor types  (Read 5607 times)

Offline wrangler

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compressor types
« on: July 07, 2008, 03:35:59 pm »
I need a new compressor since my old one is seized, but the auto parts store is asking what mine is, 9 O'clock or 12 O'clock coil.  What am I looking for?
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Offline camdenoilchange

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Re: compressor types
« Reply #1 on: July 07, 2008, 04:36:58 pm »
all that refers to is where the mounting tabs are or the plug for the coil. Usually it refers to the tabs. bring your old one in and match it up if necessary.
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Offline Skunksmash

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Re: compressor types
« Reply #2 on: July 19, 2008, 03:32:15 am »
I need a new one as well. how much did they say that one was gonna cost ya? And from where?
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Offline wrangler

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Re: compressor types
« Reply #3 on: July 19, 2008, 05:32:43 pm »
Bought it brand new last week from Gm.  It was 574.00 taxes in.  Really hard to find up here.  Most places wanted 350+ for a reman and when you take into consideration how much it costs to charge the system, is it actually worth the savings? 
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Offline DnStClr

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Re: compressor types
« Reply #4 on: July 20, 2008, 08:47:21 pm »
Oh great. I'm looking at a truck that needs a compressor. The seller said it could be bought for $135. ::)
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Don
87 Chevy Silverado

Offline VileZambonie

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Re: compressor types
« Reply #5 on: July 20, 2008, 10:19:00 pm »
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Offline Skunksmash

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Re: compressor types
« Reply #6 on: July 20, 2008, 11:44:55 pm »
How do you tell if a compressor is seized? I ask because on my 87 the belt is taken off the compressor itself, but if i try i can turn the compressor over. Not just the pully, i can turn it like it would when engaged.
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Offline VileZambonie

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Re: compressor types
« Reply #7 on: July 21, 2008, 05:10:49 am »
If the pulley rotates and the compressor shaft rotates then it's not seized. Doesn't mean it's good or bad though. The shaft is connected to the clutch disc. Just see if you can turn it by hand or put a socket on the nut and try to rotate it.
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Skunksmash

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Re: compressor types
« Reply #8 on: July 21, 2008, 10:25:47 pm »
Maybe i can get lucky the belt is just off for some reason. And the AC still works. Unlikely though.
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Offline Skunksmash

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Re: compressor types
« Reply #9 on: July 22, 2008, 10:27:57 pm »
Anyone want to take a wild guess as to why the belt is off if the compressor will still turn over? I ask because i do not know if there is a reason why i should not just put a belt on and try it.
Maybe there is a reason the belt is not on, and i would end up damaging the system in some way?
« Last Edit: July 23, 2008, 12:31:45 am by Skunksmash »
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Offline ccz145a

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Re: compressor types
« Reply #10 on: July 23, 2008, 06:05:15 am »
You'll have no idea if there is any oil in the compressor. I would hook up a guage set and see if any charge is left in the system first.

Might be a good time to convert to 134a.
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Offline Skunksmash

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Re: compressor types
« Reply #11 on: July 23, 2008, 12:48:28 pm »
Quote from: ccz145a on July 23, 2008, 06:05:15 am
You'll have no idea if there is any oil in the compressor. I would hook up a guage set and see if any charge is left in the system first.

Might be a good time to convert to 134a.

Thanks, i will keep that in mind. As for 134A, i was pleasantly surprised to see a sticker near the dryer (for the AC system) that said "This vehicle has been retrofitted to use R134a refrigerant". I have had a lot of pleasant surprises with this truck. But i attribute it to being newer than any of my other box bodies. Found a couple unpleasant surprises too lol.
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