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more A/C questions [message #132230]

Mon, 27 June 2011 10:21

lqqkatjon

Messages: 2324
Registered: October 2010
Location: St. Cloud, MN

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Senior Member

I wish I had more time to work on my GMC. I hate to bother everybody, but the gmcnet really makes the time I do have to work on it so much more efficient.

I have a 75 palm beach.

Dash A/C is not working. Was not too bothered, because the ONAN did work. and so did the roof air. now that thing quit running.

Looks like my clutch for the A/C is not kicking in. I have jumpered the wires at the low charge cut off, and it is still not kicking on the clutch.

Can i just hit the clutch with 12Volts at the compressor to diagnose if it is the clutch itself, or some other electrial switching problem for the clutch?

this is a 7 to 10+ year sitting coach. so is there any knocking or cleaning of the clutch if it is having some problems? any shade tree mechanic way of getting it going without spending money? or before I have a sit down with the wife about finding extra money in the checkbook.

Other question is the relay just up to the right from the isolator. there is a red-white wire. that to me, looks to come down, hook to a fusable link. and then go to the fuse panel. That fusable link wire gets pretty dang hot with the fan blowing/A/C switched on. I did not measure the amps, but it shows 14.7 volts with engine running. the fusable link looks to be slightly less guage wire then the red-white. and it has a crappy butt splice connection.

before I replace that fusable link with a newer, better connected one... What should I be looking for with that wire, as not to have it burn up?

also I know I should buy duracool and put that in, but I have a bottle of r-12. any thoughts/process as to adding oil with the r-12?

I wish I had more detail, but my diagnose time is limited between work, wife, 2 kids.

Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/

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[Message index]

		more A/C questions By: lqqkatjon on Mon, 27 June 2011 10:21
		Re: more A/C questions By: Dennis S on Mon, 27 June 2011 11:36
		Re: [GMCnet] more A/C questions By: James Hupy on Mon, 27 June 2011 11:50
		Re: more A/C questions By: lqqkatjon on Mon, 27 June 2011 13:14
		Re: [GMCnet] more A/C questions By: jhbridges on Mon, 27 June 2011 13:12
		Re: more A/C questions By: lqqkatjon on Mon, 27 June 2011 12:11
		Re: more A/C questions By: Ken Burton on Tue, 28 June 2011 06:00

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