ac compressor types?
Race Director
Joined: May 2006
Posts: 10,691
Likes: 71
From: Phoenix Arizona
It has to do with which clutch you are using. You should always replace both the comp and the clutch at the same time, and believe it or not, it's usually cheaper. (At least it is at Auto Zone.)
Thread Starter
Instructor
Joined: Jul 2005
Posts: 123
Likes: 0
Originally Posted by zr1fred
It has to do with which clutch you are using. You should always replace both the comp and the clutch at the same time, and believe it or not, it's usually cheaper. (At least it is at Auto Zone.)
I think shaft lenght is associated with clutch type, but what a heck is r44 ??
Has it something to do with refrigerant?
Race Director
Joined: May 2006
Posts: 10,691
Likes: 71
From: Phoenix Arizona
I'm not sure, I have run into the situation where the compressors are filld with different oil for R-12 refrigerant or with oil for 134A. I'd go with the latter if that is the case. You should convert now at any rate. There are different shaft lengths on the R-4 compressors, and that has dealt me fits when changing clutchs.
Florida turtle advocate
Joined: Dec 2003
Posts: 4,280
Likes: 6
From: Gulfcoast Salvage Englewood, Fla
St. Jude Donor '05-'06
The R4 is a radial compressor used from 84-87.....There are two different units used from 88-91.The R12 compressor will work with either R12 or R 134 but won't fit in place of the R 134 compressor which will fit from 88-96.SO that makes three that I know of.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
This will probably confuse more than it clarifies.. but I bought the second one listed here:
http://forums.corvetteforum.com/show...ght=compressor
It's a new Delco unit. There are different p/ns for original compressor, replacement new compressor, reman compressor... and the p/ns have changed as well.
R4 is the type of compressor design use on a ton of cars. Yours is an R4 compressor, no matter which one you buy for your car.
http://forums.corvetteforum.com/show...ght=compressor
It's a new Delco unit. There are different p/ns for original compressor, replacement new compressor, reman compressor... and the p/ns have changed as well.
R4 is the type of compressor design use on a ton of cars. Yours is an R4 compressor, no matter which one you buy for your car.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by morgan_kane
I have -87. So R4 is right choice?
R4 isn't a choice. They are all R4. That second one down will work for you if you want a new one.
Reman is listed on there as well. I don't know what any of the non-delco ones fit, and I didn't want to waste my money on a chinese rebuild, so I didn't bother trying to figure out the long vs short, etc.
You can also get yours rebuilt at a local shop for less than all of the above, and support your local repairman.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Melting Slicks
Joined: Nov 2005
Posts: 2,736
Likes: 0
From: WAY UPSTATE NY
Yes R4 compressor.I just replaced on my '86 with Delco #15-20227.This was a new compressor with clutch.Works perfectly.Don'tforget to replace the accumulator,orifice tube and the O rings.
Race Director
Joined: May 2006
Posts: 10,691
Likes: 71
From: Phoenix Arizona
Auto Zone is usually the cheapest if you go re-man, alot of people don't, but they do have the best warrantee, and they will sell you a New Unit too, usually cheaper too. I agree with CentralCoaster on the local rebuilder part!
Thread Starter
Instructor
Joined: Jul 2005
Posts: 123
Likes: 0
Originally Posted by CentralCoaster
R4 isn't a choice. They are all R4. That second one down will work for you if you want a new one.
Reman is listed on there as well. I don't know what any of the non-delco ones fit, and I didn't want to waste my money on a chinese rebuild, so I didn't bother trying to figure out the long vs short, etc.
You can also get yours rebuilt at a local shop for less than all of the above, and support your local repairman.
Reman is listed on there as well. I don't know what any of the non-delco ones fit, and I didn't want to waste my money on a chinese rebuild, so I didn't bother trying to figure out the long vs short, etc.
You can also get yours rebuilt at a local shop for less than all of the above, and support your local repairman.
How can i identify right compressor? Rockauto lists all of them for -87.
Originally Posted by nutz4c4
Yes R4 compressor.I just replaced on my '86 with Delco #15-20227.This was a new compressor with clutch.Works perfectly.Don'tforget to replace the accumulator,orifice tube and the O rings.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by nutz4c4
Yes R4 compressor.I just replaced on my '86 with Delco #15-20227.This was a new compressor with clutch.Works perfectly.Don'tforget to replace the accumulator,orifice tube and the O rings.
That's the one I got from Superior Chevy. Haven't put it on yet.
"Assembled in the U.S. of U.S. and foreign components"
"AC-Delco Seal Washer Kit - Made in People's Republic of China"
