My Jaguar XJ6 1990 I am going to convert the system from R12 to A134, My main question is, I am sending the compressor to rebult (its working but need to change the oil so let it be done right, Now how much oil I have to put into it and what kind?
The company that result dont add oil.

 

7 years is going on some kinda record for a necropost.

You should probably have started a new thread.

bob

 

Hi shtekler,

I have moved your message from the old thread in which you originally posted it.

I am traveling and don't have access to my XJ40 Workshop Manual DVD, but I do have a copy of the Haynes XJ40 Manual in pdf form on my laptop and according to pdf page 86:



You can download the U.K. edition of the Haynes XJ40 Manual (minus a couple of chapters) at this link:

https://www.mediafire.com/?hx8bttsy4kxxr

Cheers,

Don

 

Thanks Good info

 

ESTER based oil will be compatible with BOTH the oil left in the system (mineral oil) and the replacement refrigerant (R134a)

bob

 

Is it mean that the oil I have current it use for R12 will be good to use with the A134?

 

I will just flash the system and use new oil

 

You need to fill the compressor with ESTER based oil and it will be compatible with the old oil and 134a refrigerant.

You can flush the system but there will still be some old mineral based oil in the system.

bob

 

THX

 

I replaced to a new compressor replaced the dryer drained the Bag oil form the new compressor add new ESTER oil charged according the Jaguar
instraction 4.5 OZ oil and 40.5 pond A134A its coils not bad the compressor has some noise like a bird when I accelerate the
pressure on the low side is 50 PSI high side 200PSI
does it normal?