My name is Robt100, and I have an addiction to Autoshite purchases.... Jag suspension...Fixed?!!!! 2/11/25

[robt100]

Right then, a small update.....
After the rear light debacle, Ron was just getting the MOT sorted. Went out yesterday to drive it out of the yard and... its turned itself into a low-rider

Tried running the car - No pump running

Turned out with a bit of investigation to be a dodgy plug on the pump solenoid valve. So pump back to working again, good news? No, sadly not....

Even with the pump running the car would not rise up. Did the usual 2 min run then stopped. So onto the system in the boot.....

Taking the feed pipe off let a little bit of pressure escape, so something was happening. Ron connected up a pressure gauge to the line-in and it was struggling to even get the gauge to show anything. Suggesting the pump. He then plugged his workshop compressor into the valve body, and 6 bar raised the car 1 inch, so seems the valve body/struts are still operational.

But it makes me wonder what has happened, as a failed pump shouldn't cause the car to drop surely? As that should be stopped by the valve in the distribution block/manifold isn't it??? Which makes me wonder if there is something else playing up. Worryingly, amongst the bag of bits that came with the car, I have found one of BagpipingAndy's rebuild kits! So will be dropping that off later next week to see if that helps build the pressure.

But my main concern is why it dropped, could there be something else wrong, or just some weird quirk of a failed pump?
I vaguely remember the OSR going down by maybe 1inch after sitting for 4 weeks, could all the fiddling round with the fusebox etc in that area have disturbed something?

[robt100]

Bit of an update on the above. @Jikovron has been earning his keep troubleshooting things. Put a pump rebuild kit on it and cleaned up the drier side (it was a mess) then refitted the pump and.............. 

Sod all inflating.

Video from fitting a pressure guage to a setop end on the pump feed

https://streamable.com/tuna81


Vid after turning off, so definitely a leak somewhere between the pump and distro block
https://streamable.com/zriy4k


New pump time? Or a hidden feed pipe from the pump to the tank that may have a leak, no idea where it runs to/from?

[robt100]

Right, another small update.
Changed the pump out, main dealer jag want £1,345 for theirs....so got a chinese special (probably from the same factory as jag!) for £92 instead 😅

All fitted and....

IT WORKS!!!


Now just to hide the slightly worse for wear brake hardlines under a slab of grease to protect them and its MOT time.....unless it decides to throw another wobbly!

[DirtyDaily]

Long live the XJR!