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Re: [GMCnet] yet another dash AC question [message #274520 is a reply to message #274492] Sat, 28 March 2015 17:45 Go to previous messageGo to previous message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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Senior Member
KB wrote on Sat, 28 March 2015 11:21
I did add oil.<snip>
Don't know if that's good or bad advice, but it's moot now since I had to dump that charge to get at the expansion valve. Since I don't know how much is in the system now, may have to take it all apart again to flush and measure.

thanks,
Karen
1975 26'

Karen,

Don't sweat it.
You know the way they say "an once for this and another for that"?
They don't know either.
The fact is, if you have too much, it won't matter it will just collect in the condenser and nobody will ever know unless you are in Death Valley in the summer. And maybe not then.
If you have too little, it also won't matter ans long as there is some going by the pump (compressor) and that does not take a lot.
If you are worried, pour in enough for the pump and let it go at that.

Kind of like the oil mix in a old 2-strokes. 16:1, 20:1, 24:1, 48:1 & 50:1 all worked. I ran lots of 24:1 on 50:1 mix and the biggest issue was correcting the mixture.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
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