Difference in AC Compressors?

Serversdown · 12:27 PM

So I just received a new AC compressor to put on my 1986.5 944 NA. Managed to get the old one out a few weeks ago (one of the ears sheared off, i think the PO tensioned the belt while the mounting screws were torqued) and have just been waiting for the new one to get here. It came today and ive noticed it looks different. The ears appear the same, so does the pulley, but the valve part, appears to be rather different. My old one has 2 holes while the new one has 4 (under the plastic caps). I got it off ebay, and it says its compatible with my car, but i'd like to make sure before i go to the hassle of getting under the car.

Here is the link to the new one:

1987 1995 Porsche 924 944 968 Reman AC Compressor | eBay

Anyone have any info on this compressor? Is it made by a different company? Is it sort of a 1 size fits all cars sort of deal? Can't find any manufacture or model number on the new one. Just K103 cast into the aluminum. Sticker only says what sort of oil and pressure to use.

Picture below. Old compressor is on the right(obviously), new one is on the left.

sjv · 04-20-2015, 12:24 PM

I may not know ieft from right but your old compressor has one manafold for both high & low side hose manafold does the new compressor have both high&low ports under one of those white caps and will your hose manafold connect to it . I don't think that compressors right also if your using r-12 the r-134a oil is differant

Serversdown · 04-20-2015, 12:30 PM

ohhhhh i think i figured it out.... The new one does not have the manifold attached. I feel sorta stupid.

jeffrsmith · jeffrsmith's Garage

Quote:

Originally Posted by Serversdown

The new one does not have the manifold attached.

Spot on! Make sure that you use new O-rings when you move the manifold over.

sjv · 04-20-2015, 03:33 PM

I had to use a impack driver to get those allen bolts out

Serversdown · 04-20-2015, 07:13 PM

Quote:

Originally Posted by sjv

I had to use a impack driver to get those allen bolts out

Haha yeah. I tried to use an allen key... they ain't moving anywhere.

kuehl · kuehl's Garage

Quote:

Originally Posted by sjv

I had to use a impack driver to get those allen bolts out

What? impact on 6 mm allens, really?

Take the schrader valve cores, or R134a port adapters, off your old manifold.
Clean out the old manifold, install new cores or adapters.
Use 4 new o-rings under the manifold, lightly lubricated with refrigerant oil,
torque allens to 18 fts lbs.