Thanks for all your help.
Also just found out the p38 has ''EAS pumps internal thermal switch failed so it has a external one fitted. Works perfectly well.''
what does this mean!?
Inside the air compressor for the Air Suspension is a thermal cutout, if the pump runs too long and overheats, the cutout wills top the pump before it melts itself, once it has cooled the pump will run again.
The internal sensor can be a pain to change, but is doable. Some elect to bypass the internal one by just grounding the orange wire (ill advised as there will be no thermal protection) and I have heard of some putting an external thermistor mounted to the body of the compressor - not sure how effective this is or if it works or how to wire it up!
A rebuilt compressor from the likes of Kurt Johnson (member on here) is economically priced enough to replace this 'botched' repair with a known good and serviceable unit that offers you the correct degree of protection.
The P38 is much maligned and gets a bad press, remember most of the posts on here are because people have problems, you never hear much about the ones with no issues.
Also, if you do decide to go down the P38 route there are a good number of people on here who have been there, done that with the P38 who can help out and offer advice and opine. The P38 was the best rust proof vehicle Land Rover has ever produced, they just simply do not rust (unless totally abused and lives in the sea!!
I have had a few P38's and never suffered overheats or slipped liners, keep up on maintenance and she'll reward you well.