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Something blew! |
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CamJam
Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6479 |
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Posted: Jul/03/2016 at 3:05pm |
In preparation for Rockford I took the car out for a shakedown cruise, after changing out all the cooling system clamps. On the drive the A/C quit, so I stopped to see if the compressor was running. It was, but there was a bit of an oily mess under the hood. At first I thought it was anti-freeze from a leaking clamp, but now I realize it's A/C compressor oil.
So... obviously something blew, but would this likely indicate a bad hose or a seal within the compressor? I can't see any visual indications of a leak other than the oil seems to be coming from near the top of the compressor. |
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'73 Javelin 360 (current project)
'72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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Cameron, the old York compressor are famous for loosing the front seal......it happened to several fresh rebuilds for me. Are your lines originals or "new" using old fittings. Old lines do rupture, but I would bet more on the front seal.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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CamJam
Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6479 |
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Thanks for the response, Ross. I had new hoses made using the old fittings. The York was NOS, and of course the front seal would be 40+ years old. Are these easily rebuilt, or is it just better to find another? |
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'73 Javelin 360 (current project)
'72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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If I have correct compressors, I send them to Classic Auto Air for rebuild, repair....but you would never make it to Rockford, their turntimes are pretty long....getting better since last time I caught them in the middle of a facilities move. You can buy a front seal kit and replace it by yourself if you are comfortable with that work.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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ramblinrev
Moderator Group Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11472 |
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Could have blown the head gasket too, especially if the unit was a tad overcharged.
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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CamJam
Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6479 |
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Head gasket seems more likely to me as the oil was thrown around the driver's side of the pump rather than around the main shaft seal. Could have also been the base plate gasket I suppose.
I've read that there is a pressure relief valve incorporated into the Yorks, but I can't find it anywhere. Not sure if this is a spring loaded design that resets automatically or if it's a one-time use part that needs to be replaced? I'll go ahead and pull the compressor and replace the head and base plate gaskets. I actually have a gasket set on hand already. |
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'73 Javelin 360 (current project)
'72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD |
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CamJam
Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6479 |
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I may not be the sharpest knife in the drawer, but this valve doesn't look right to me. Comments anyone?
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'73 Javelin 360 (current project)
'72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD |
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9081 |
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yep that don't look right at all... might as well replace it while your at it.
now going back a bit, when seeing that someone thought the pump blew a seal. It reminds me of Kip Adotta... |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Budwisr
AMC Addicted Joined: Jul/09/2007 Location: Illinois Status: Offline Points: 583 |
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Ahhh Kip Adotta. He's from Rockford. Nice tie in for the National Convention.
Back on topic, I had the same problem with several rebuilt compressors in my AMX. Front seal. Finally gave up, never charged my system. I've been pondering trying again but I'm rethinking it now that I've seen this post. Back in the day those York compressors seemed bullet proof.
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1970 AMX 1980 AMX <br |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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Cameron....not all York's have the pressure relief valve.....if it had one it does reset itself. It is located on the back of the compressor main body and points straight aft. I have never seen one on an OE AMC install up to late 1970's.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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