| [GMCnet] Dash Air, R-12 or ? [message #212067] |
Mon, 24 June 2013 14:29  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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The 78 Royale that I sold isn't quit done before I believer it. Just changed the power steering fluid plus cleaning that filter, trans fluid plus filter, final drive gear lube, and engine oil plus filter. Installed all new body to frame pads, engine fuel pump with filter, and engine oil cooler lines. Got all these items done last evening. Tonight I'm installing all heater plus radiator hoses, and replacing the dash air conditioning compressor. I'm going to put R-12 in, as I think that it's still the most efficient. I need to check with Jim K on this. Next comes the Brake system with new wheel cyls, calipers, master cyl, and stainless steel lines. Bob Dunahugh
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| Re: [GMCnet] Dash Air, R-12 or ? [message #212071 is a reply to message #212067] |
Mon, 24 June 2013 14:55  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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If I had R12 I'd use it otherwise I'd use dura cool I just wouldn't use 134 especially if you have mineral oil in the system
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Dash Air, R-12 or ? [message #212075 is a reply to message #212067] |
Mon, 24 June 2013 15:13 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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No, Bob, the Duracool is actually about 10% more efficient than the R-12 and about 20% more than R-134a.
In addition it will lower the head pressure about 100 psi which means less load on the engine and less wear on the compressor.
Emery Stora
On Jun 24, 2013, at 1:29 PM, Bob Dunahugh wrote:
> The 78 Royale that I sold isn't quit done before I believer it. Just changed the power steering fluid plus cleaning that filter, trans fluid plus filter, final drive gear lube, and engine oil plus filter. Installed all new body to frame pads, engine fuel pump with filter, and engine oil cooler lines. Got all these items done last evening. Tonight I'm installing all heater plus radiator hoses, and replacing the dash air conditioning compressor. I'm going to put R-12 in, as I think that it's still the most efficient. I need to check with Jim K on this. Next comes the Brake system with new wheel cyls, calipers, master cyl, and stainless steel lines. Bob Dunahugh
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