air conditioner in 740-which type?

  • Thread starter Thread starter Jim
  • Start date Start date
J

Jim

I brought my '87 740 GLE in to get the a/c recharged. The mechanic
said the a/c was labeled with one type (there's a plastic tag that
says: R134a) but the nozzle or connector was a different type, so he
didn't want to recharge it. I don't know what to do. I would
appreciate any suggestions.

-Jim
 
It originally had R12, but it sounds as if it's been retrofitted. If in
doubt it wouldn't hurt to spend the $100 or so to install a new retrofit
kit, if the charge has leaked out it probably needs new O rings and a new
reciever/dryer too, that's the bulk of the cost of the kit.
 
[email protected] by Jim dropped his wrench, scratched his head and
mumbled,
I brought my '87 740 GLE in to get the a/c recharged. The mechanic
said the a/c was labeled with one type (there's a plastic tag that
says: R134a) but the nozzle or connector was a different type, so he
didn't want to recharge it. I don't know what to do. I would
appreciate any suggestions.

-Jim
Click to expand...
If the shop can't test the refrigerant to determine what's in it, then
find a shop that can. If the shop that did the "conversion" didn't change
the service port fittings to the proper type, then find a shop that can
do both these things correctly and have the system repaired to operation
in a proper manner.

Bob
 
Jim said:
I brought my '87 740 GLE in to get the a/c recharged. The mechanic
said the a/c was labeled with one type (there's a plastic tag that
says: R134a) but the nozzle or connector was a different type, so he
didn't want to recharge it. I don't know what to do. I would
appreciate any suggestions.

-Jim
Click to expand...

The only proper way to be sure is to find a shop that has a refrigerant
tester. They can take a sample out of the system, and their machine
will test it and tell them what it is. Chances are you have 134a, and
what should have been a permanent conversion fitting was only
temporarily attached over the R12 fitting to do the initial fill and
then removed.
 
If you have a full charge its ez to tell if its 134a or 12. 134a will warm
up when you stop at a redlight, 12 wont.
 
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