Stalling, rough idle

[Deke]

Wait a second — is that an easy thing to do properly? What’s the plan here?

PS: glad you found the solution to the other problems.

The ports need to be changed as R134 is larger than the R12. They will add a new dryer unit, flush, will and check for the source of the leak and replace line, if necessary. Tech has no idea how they probably managed to get 134 in the system unless an adapter was used, but the old system will not properly work with the new refrigerant.

Also, a new alternator because a bearing in the old one was making a lot of noise.

 

[CBODY67]

All of the existing R-12 oil will need to be flushed out or new components installed. Allegedly, the old oil will congeal and settle out at the lowest locations in the system.

There are several threads in here on R-134a conversions. Usually with a bit less R-134a than the prior R-12 charge.

Enjoy!
CBODY67