Now I have a larger than stock capacity receiver/drier on board:
#8 hose from the compressor to the top of the condenser.
#6 hose from the bottom of the condenser to receiver. I had to drill a hole in the bulkhead to get the line out of the receiver into the engine compartment.
Gonna have to change some stuff up front but it will fit. Just a quick and dirty mock up.
One thing is sure. I have plenty of capacity now! Seems to be an agreement about capacity being a good thing...
Any input? I believe the accumulator actually exerts some suction when it's running. I had it in the house with the AC on and after working in the heat I noticed it was almost cold to the touch. I'm in the process of getting it acclimated to the garage temps again
When testing the fan I noticed the temp of the evaporator seemed to drop noticeably
Probably not too good with the humidity we've had down here...
I also have an oiling issue
The Sanden literature says that having the compressor full is enough but I'll have 2 driers that can soak up oil... At least the Sandens don't seem to be as oil sensitive as R4's.
The receiver/drier should make sure the orifice tube has plenty of liquid to work with and the accumulator should help the gas that is created move through the evaporator and make sure no liquid reaches the compressor.
There are filters on each plus a filter on the orifice tube.
Most seem to agree filters are good.
I'll probably put the low pressure switch on the receiver and the clutch cycling switch on the accumulator.
I believe the clutch cycling switches work off of grounding.
A GM 134a switch is from 21-44psi. and picks up the signal at the accumulator and is based on a .072" orifice tube.
Fords 134a switches are from 23-46psi and use a .067" tube. Ford also has .057" and .062 tubes.
I'm just going to start with a GM "white" which is .072 and a GM 134a switch.
Greg is silent... His mind must be blown...