A/C question
Printed From: The Ford Torino Page
Category: Model Specific Forum
Forum Name: 1972-1976 Ford and Mercury
Forum Description: Technical discussion for 1972-1976 Ford and Mercury
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=16965
Printed Date: 18-April-2024 at 6:49PM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: A/C question
Posted By: 72GTS351CJ
Subject: A/C question
Date Posted: 05-April-2018 at 10:22AM
|
BTW the sticky on ac questions says "topic closed". Never saw that before . Anyway it's been awhile since I worked on ac. So I have a totally stock system. I'm going to hook up the vacuum pump to the low side? Does it matter? How long should the pump be connected? If it's pulling negative numbers than I don't have a leak? How many 12oz cans of r12 should I need. I think I have 8. Thanks-Rick- ------------- 72GTS Clint Eastwood Special |
Replies:
Posted By: Power Surge
Date Posted: 05-April-2018 at 11:13AM
Yes, vacuum pump to the low side. Pull it down to 30 inches, and let it sit 10 minutes. If the needs drops at all, there's a leak. The system holds 4lbs of R12. Now... what do you know about your system? Has it been off the car? Has it been open to atmosphere? Or has it been intact on the car the whole time? Does your compressor have oil in it? ------------- Sal Mennella 73 GTS 351 CJ 75 Cougar XR7 73 Ranchero - 5.0 Coyote swap - in progress Past Torinos - 72 Gran Torino, 75 Gran Torino, 75 Elite |
72GTS351CJ wrote:Posted By: 72GTS351CJ
Date Posted: 05-April-2018 at 11:30AM
|
Original to the car never opened. New compressor with proper r12 oil,new condenser, new expansion valve, new receiver/dryer and new hoses. All n.o.s. parts. No idea about the evap or that other large valve in the engine compartment (I can't think of the name). I'm a gambling man. If no leaks what are my chances? ------------- 72GTS Clint Eastwood Special |
Posted By: aquartlow
Date Posted: 05-April-2018 at 1:18PM
|
Do yourself a BIG favor and have the POA/STV checked, it is very easy to do with just an adapter(I used a PCV fitting), a air compressor and a/c gauge set. Here are the instructions, hope it helps: http://www.autoacforum.com/messageview.cfm?catid=20&threadid=16311" rel="nofollow - http://www.autoacforum.com/messageview.cfm?catid=20&threadid=16311 My original, 40+ year old POA/STV checked out good, a $200 NOS never used valve I was wanting to install tested bad, glad I checked before dispensing the R12. Good luck. ------------- www.supermotors.net/22468 Yeah, It's a Hybrid...It burns gas and tires. No matter how good she looks, somebody, somewhere, is tired of her sh*t. Beauty is skin deep, ugliness goes clear to the bone. |
Posted By: 72GTS351CJ
Date Posted: 06-April-2018 at 3:11AM
|
Thanks guys!! That's a big help. I'll use your advice and report back after it stops snowing. Yes SNOW. Unbelievable ------------- 72GTS Clint Eastwood Special |
Posted By: 72FordGTS
Date Posted: 06-April-2018 at 10:19AM
I think if threads become inactive after a certain length of time they automatically lock. I am not sure what that time is and I am assuming this is a setting Scott put in place. I have noticed there are lots of old threads that got locked out when I have done searches. ------------- Vince 1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |