Flushing techniques

Friendly format provided to inquire about automotive a/c systems.
Archived Forum

Moderators: bohica2xo, Tim, JohnHere

Post Reply
Emdoller
Posts: 26
Read the full article
Joined: Mon Aug 15, 2016 7:31 am

Flushing techniques

Post by Emdoller »

Hi

I'm rebuilding the AC on a 69 Camaro. Compressor is being rebuilt and new hoses have been purchased along with a new drier.

It barely worked before I pulled it apart and I believe it was converted to 134. I'm planning on flushing to remove the unknown oil in the system.

Can I flush the evaporator through the POA and expansion valve or do I need to take them off?

Also, what's the best flushing solution to remove the oils from the evaporator and condenser?

Ed
User avatar
HECAT
Posts: 13
Joined: Tue Apr 19, 2016 9:04 am

Re: Flushing techniques

Post by HECAT »

No, you need to remove the POA and expansion device and clean it another way. You cannot flow any solvent volume thru such device, and you cannot flow enough air thru it to be able to evaporate (dry out) the solvent.

The best solvent for unknown refrigerant oils is SAFE-FLUSH A/C; available from this sites sponsor here...

http://www.ackits.com/flush-equipment-a ... llon-31643
Karl Matis
www.hecatinc.com

Please support this Forum
Buy your A/C products at www.ackits.com
Post Reply