Pro6TEN issues.

[jeffahart]

Originally Posted by Awann99

Awesome. Thanks Bob. Both pipes coming out of the evap core were very cold. The compressor also pulls my rpm's down about 200 when at idle. You can really feel the HP pull when I'm driving. Turning it off when I'm
Driving feels like I'm letting off the brakes. Is that normal? This is the first truck I've driven with ac.

Yes. I just ditched my Pro6ten for an SD7H15 Compressor. I used Alan Grove Brackets. My Pro6ten on r134 was cooling fine. But I hated it dogging my engine, especially when it's hot. And it gets really hot here. When hot, I could not switch the A/C on at running RPM or the belt would not grab and start squealing. I had to put my foot on the gas pedal a bit at idle or the RPM dropped too low; so I installed a solenoid on the carb to bump the idle when the A/C was turned on. But that does nothing for the belt squealing. And it still felt like I was towing a load with the A/C on.

So, I moved to the SD7H15 with the Alan Grove brackets. I drove it at temp of 114 and measured 49 at side and center vents(on r134) no more engine dogging and I just pulled the compressor snug and tightened to bolts... no more belt slippage and squealing. It is a joy to have this setup. I need A/C here and I am now happy .

j

I will add, I just did the conversion over the winter. Been driving the truck a lot this summer, which I usually did not do because I hated the A/C compressor dogging my old engine. So far so good, no issues. I think this may be the best upgrade I've done on this truck!

j