www.jec.org.uk

I'm about to fit a new aircon compressor to my series 2 V12 and gas it with R134a instead of the R12 in the old one. Since R134a has a tendency to leak away, I want to add a small amount of protection for my new compressor by fitting the later wiring which, under low pressure conditions, allows a superheat switch in the compressor to disengage the compressor clutch and minimise possible compressor damage.

To make my life easier, is anyone breaking a late series 2, a series 3 or an XJ-S with the short 4 wire harness/fuse block (DAC 1408) plus the associated small bracket (DAC 1396) which holds fuse block to the compressor that they could sell me? Mike.

there is a 1985 V12 xjs in my local breakers with aircon

which lead do you need, pics would be good ,

BB

Hi,

Pics are a bit difficult because I haven't any old bits. The leads plug into the compressor plus an earth loop at one end and terminate in a moulded plug for the fuse unit at the other. In total, the wires are only a couple of feet in length. The bracket attaches to the compressor and holds the plastic fuse. A 1985 car sounds about right so any assistance to check out your local breaker would be much appreciated. Thanks, Mike.

Mike,

Those part numbers don't seem to relate to XJSs. It may be that there are equivalent parts on an XJS of that era. If you were able to post any pics, it might be easier to track down the XJS equivalents as there are a number of people who break XJSs and they are probably more plentiful than Series 2/3 XJ.

Paul

i went round at luch time today , but its bad news ,

its all mullered ,the wiring has been yanked out breaking it all , that and what looks like a mouse nest in the engine and it has peed over everything making it all nasty

sorry

BB

Thanks Paul and BB. I can get round the problem without the original Jaguar parts but it's always good to benefit from the work done by Jaguar's engineers, hence the request. I'll keep trawling the yards while I'm waiting for some other parts to arrive. I would dearly like to have the aircon working for next month's Entente Cordiale trip. It's that or travelling with noisy open windows!

The likely reason why the part numbers don't appear to tally is that Jaguar quickly moved on from fitting the superheat switch to using a pressure switch in the same location and the pressure switch was wired with very minor but hardly significant differences. Thanks again. Mike.