Factory AC compressor hose connection

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

texasmike

Full Access Member
Joined
Sep 18, 2018
Posts
229
Reaction score
140
Location
Conroe Texas
First Name
Mike
Truck Year
1984
Truck Model
C10
Engine Size
305
I had the R4 compressor replaced with a new ACDelco unit and it is slowly leaking Freon at the double hose connector. It is held in place with a single bolt and has two O-rings. It looks like one is red and the other is green. Is that correct or should they both be the same color and type?
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,158
Reaction score
15,957
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
Both should be green and coat them with compressor oil.
 

fast 99

Full Access Member
Joined
Dec 31, 2021
Posts
1,589
Reaction score
2,150
Location
Spokane, Washington
First Name
Brian
Truck Year
81,85
Truck Model
K20
Engine Size
350
Some of those compressors take a different thickness seal between the pressure and suction sides.
 

CorvairGeek

Full Access Member
Joined
May 7, 2012
Posts
548
Reaction score
908
Location
Boise
First Name
Jerry
Truck Year
1978
Truck Model
C20 Scottsdale
Engine Size
292 L6, T400
You may need the crackhead AC Delco sealing washer chart, if you have a newer hose set or a compressor without the relief for the big o-rings (which were universal for decades).
You must be registered for see images attach
 

CorvairGeek

Full Access Member
Joined
May 7, 2012
Posts
548
Reaction score
908
Location
Boise
First Name
Jerry
Truck Year
1978
Truck Model
C20 Scottsdale
Engine Size
292 L6, T400
I've got a new hose set and a very late Dephi service compressor. I had a pic where you could see the washer colors, but I can't seem to find it. I want to say I needed a yellow and green. Getting the manifold flat against the compressor is the object of this exercise.
You must be registered for see images attach
 

Latest posts

Forum statistics

Threads
41,857
Posts
903,629
Members
33,370
Latest member
mitchell1128
Top