Now that I'm getting a brush cutter and I ordered a new front glass piece, ( $76.00 on amazon with free shipping ), thought I'd work on the air-conditionng. I put my auto parts store gauge on the low pressure side of the system and it's cycling between 40-50 psi which is where it's supposed to be at 85 degrees ambient. Trouble is, the compressor clutch engages for only 5 seconds then cuts off for 5 seconds, then back on. Sort of cool air but not cold. Any suggestions? The system seems to be holding pressure pretty good. I ran it for 30 minutes at idle and no pressure drops. Thanks.
What's the high side like for pressure?
Don't know. I only have the hookup to the low pressure. Guess I should seek professional help or do you think it might be something else?
It sounds low on refrigerant but I would not add any blind. I would not proceed unless I had gauges on both sides and temperature measurement in various places, etc.
Sounds like it is short cycling due to low charge. As said above, I would start with a little better gauge set and see what the high side looks like and go from there.
Thanks to all. I'll drag it up to the local mech and get him to take a look.