home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Thread Tools Display Modes
Old 08-01-2020, 10:53 AM   #1
Board Member
Join Date: Jun 2020
Default 91 240 (GM Style) AC Clutch Gap


As my little project nears mechanical completion, I am hoping to get the AC running so I can drive in the summer. At first I thought I had a refrigerant leak, as I could get it running in the garage but after a drive or two the AC would cut off. Now I suspect that the AC clutch is worn, and causing it to cut off when the car is hot. Does anyone have the gap spec? (My service book basically says DIY's should not work on AC) Is there another way to test this theory?

dandeluca is offline   Reply With Quote
Old 08-07-2020, 02:35 PM   #2
Board Member
Join Date: Jun 2020
Location: Flagstaff, AZ

Even if it's slipping a little it should cool a bit. The gap is set by washer thickness behind the plate. 100% sure you have a leak somewhere unless all deals have been replaced, and also might have a weak clutch
240Redblock is offline   Reply With Quote
Old 08-11-2020, 09:58 AM   #3
Board Member
volvowagoon's Avatar
Join Date: Jul 2012
Location: Franklin, IN

I wouldn't jump to that conclusion. The compressor isn't going to run if you don't have an adequate charge. I don't know much about the newer systems, but you should be able to quickly test the clutch by turning the AC on and jumping the pressure switch. If it kicks on you have a leak to fix.
Feedback - https://forums.turbobricks.com/showt...ht=volvowagoon

1986 Buick Grand National - Restoring to stock™
2002 Camaro V6 T5 +T - The trashy car that's fun to drive
2010 C30 T5 - The boring but trusty daily - 192k
1989 245 DL - The boring but not trusty daily - 226k
IG: @v6buick
volvowagoon is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -4. The time now is 07:11 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.