Automotive Air Conditioning Information Forum

Any thoughts on the old RTI 100% analog equipment?

I believe Bosch bought them out. Are parts still available?

JohnHere,

Thanks for the reply. I have no idea what the original system held as the decal is not there and the only thing left from the stock system would be the evaporator and I am not sure if it is a dealer installed or factory installed system. The evaporator is big though.
I did get some more ...

I am looking for an AC RRR machine myself. Just home use and for friends. What is a good model to keep my eyes open for? I have been looking for the older (20-25 years or so) RTI machines that are all analog, no digital. Any suggestions?

I have a 1977 F250 with a 12-valve Cummins swap. During the swap I used a brand new Sanden SD7H15 compressor (New Sanden), cleaned the original evaporator (flushed multiple times) and clean exterior, new expansion valve, new hoses, new drier (universal), new universal parallel flow condenser. This ...

I have no coolant flow through the heater core when the AC is on/heater off.

Verify the compressor RPM.

With the diesel engine's narrow operating range, swapping engines & compressors can lead to a mismatch. A compressor that is too small or spinning too slowly will give poor cooling.

The OEM compressor for your truck was a 210 cc/rev York type compressor. If you install ...

What suggestions has your parts supplier mentioned. As to not go over things already discussed?

I haven't talked to anyone about it except on this forum.

It's relatively cold here so I am waiting for it to warm up some to get some pressures and temperatures.

It does put off a lot of ...

The only thing factory is the evaporator, which was thoroughly flushed out multiple times with commercial solvent and pressurized flush system.

I don't have the factory oil specs, as it was R12 so I didn't look into that.

Yes, brand new universal R-134a drier was placed in the system.

Here is a ...

We charged it by pressure if I remember correctly.

I believe the compressor came pre-charged with oil, but I did buy Sanden SP-15/PAG oil for it, so if we had to use oil that is what we used.

I will have to check the pressures and get back with that info.

I have a 1977 Ford F250 with a Cummins Diesel swap. It is a factory AC truck. When I did the swap, I flushed out the factory evaporator several times, bought a new Sanden SD7H15 compressor, expansion valve, and largest parallel flow condenser I could fit in the front of the truck. I also put a new ...