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Do you have the Delco R-4 compressor... which looks like a hockey puck on steroids ?
That will affect several of the answers....
refresh your screen often to catch the newest answers/ questions...
Where in Texas are you ?
Compressed air is not the best thing to push the flush through the system with.... nitrogen or argon , being DRY, are better..
but with any of them VERY LITTLE pressure is needed... maybe THREE POUNDS... this is not a high pressure flush .. just push it through .... so it can dissolve and take stuff out the other side of the line you are cleaning...
The evaporator is flushed IN PLACE... not the best situation..and certainly one you want to LIMIT the PSI input.. and use DRY gas to push with...
The FSM shows making the OLD Txvalve into a TOOL to do that flushing in place... ( of the evaporator )..
If you have the R-4 you pretty much have NO oil in it.. but it can and should be flushed by hand pouring and turning... not the way the rest of the system is flushed .. but a lower tech cleaning method...
Well, I see you have left the forum without seeing my post...you were still here when I first posted....
Last edited by leathermang; 06-05-2011 at 04:24 PM.
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