A/C Compressor rebuild

[Pszemol]

Hello all,
I am looking for some information about the 10AP17C compressor rebuild for my 95 camry LE, four cyl.

I have picked up wrong one for my job: I needed R134a but it turns out that 10AP17C model covered both kinds of refridgerant and the one I got is for R12.

From the outside it looks the same except the in/out ports are different and the A/C lines do not fit them. I know that the oil was different for R12 than for R134a so if the new compressor will be used it has to be washed to remove old oil.

I could go and toss this one away and pick up the right kind for R134a but I was wondering if it would be possible to use this compressor with R134a after replacing the piece with ports from my old compressor.

Do you know any place I could get some drawings and rebuild instructions for this compressor kind ?

I have found A/C repair manual here http://www.**********s.com/camry/ac.pdf but they do not go inside the compressor...

[toyomoho]

The conversion process for R12 to R134 involves just this process. If you have the old compressor, strip off the fittings. There may be some seals available aftermarket but not sure of other interior components except to rebuilders.

[Pszemol]

Do you know how much oil can be inside the compressor ?

Does it flow out easily or majority of it will stay, even after
I rotate this thing in all directions with fittings down ?

Assuming I will find the correct compressor on the junkyard
and do not know how was it handled - how much new oil would
you add there ? The manual specify 140cc but this is for
the new, dry compressor, without any oil in there...

[toyomoho]

Toyota had a bulletin about converting the A/C system from R12 to R134. This bulletin stated the old R12 compressor did not need to be changed out or the A/C system flushed of oil lubrication oil. However, mixing R12 and R134 apparently clouds the Freon rendering the sight glass in system useless.

You have may be OK just changing the lubricating oil. On some makes of cars, the conversion process also required changing the front compressor shaft seal. As such, the R134A compressor may have a different front seal, but can’t say. The R12 systems could be converted for a reasonable price. The same part numbers are listed for Camry R12 and R134A compressors.

The service manual states when changing the compressor 4.9 fl oz of lubricant are required. There is also lubricant in the A/C system, floating around. Drain as much of the old fluid out and flush it with new lubricate, then add the appropriate amount of lubricant. Don’t use mineral oil.

Suggest changing the dryer also at this time, this item absorbs moisture in the system. The part is pretty cheap. Add 0.7 fld oz of fluid if you change the dryer.

[Pszemol]

Well, the old compressor in my car requires replacing just because the front part of the case is broken: the point where is clutch bearing slid on - the groove holding snap ring is damaged and the wheel does not sit secure - it is whobbling causing compressor to not work properly. The damage was probably caused by too strong belt tensioning.

So my last idea, after discovering my junkyard compressor is for the R12, that I could make a compressor surgery and keep my old R134a compressor replacing just the front part of its case - the one with the shaft seal.

When you wrote that shaft seal has to be replaced now you scared me that the job will not work... Can anybody confirm if the shaft seal for the 10AP17C compressor was the same or different in R12 and R134a models ?

Any part lists for compressor rebuild ? Anybody knows a place on the web taking care of such job ?

Thanks.