Also as a side note I replace thes fluid again while I had it all out and made sure it was at the level after cycling a few times up and down.

 

I am assuming that you are all back to gather and the roof and latch operate properly but just a little sluggish on the roof. I would not panic just yet. This car has been sitting for many years. If it were me I would operate the roof once or twice a week to see if the operates a little faster. I would spray a little WD40 on the ram shaft when it is extended to lubricate the seals at the ram shaft. And Hope for the best!

 

That what makes me think it must be a tired pump.

 

Hi Gus the catch is not operating correctly when I get in the car and press the hood down button the rear windows go down but nothing more I have to unlatch manually every time.

I though the same thing.

 

When you operate it electrically now does the latch attempt to open? When the roof is opening is it a little sluggish?

I am not sure the pump is tired I think it is clogged or the system needs a hard reset.

 

It might help if you can post a video (for the sound) of the pump when it's trying to raise or lower the roof.

You put it on YouTube then paste in the URL.

 

Right Guys here's the video for ya.
Ignore the silver haired fella he's my dad)

Pump Noise

Roof Down

Roof Up

Gus the latch does not seem to move at all when the roof is closed it is hard to open even with the allen key.
Once opened the roof tries to go back but just doesn't seem to have enough power to pull it back(without any help).
That is why I was thinking a tired pump could cause this , also the last push it needs to open/close the latch could be affected as well.
Do you think it might be worth changing the pipes on the latch again? which side of the latch unions should the pipe with the F in white be attached to? could you show me.
My pipe with the F on it attached to the bottom of the front of the pump and it went to the right side union as shown of the latch in the 2nd photos of the pic from you site Gus.
JagRepair.com - Jaguar Repair Information Resource

If you need any more info just let me know and thank you all for your help so far.

 

Two things jumped out at me ...

- In 1st video, there is a sound at ~ 25 seconds that is not normal.

- In 3rd video, the speed with which the top goes up seems at odds with the pump being tired.

Just quick impressions.

 

After watching your videos I want to know why no pressure to open the latch (no movement at all) that leads me to wonder if the roof latch solenoid is working or activated. Did the pump stop when the roof was resting on the open latch or did you let up on the button when closing? The roof opening is a bit slow and it sounds like the pump might be struggling what is confusing is that it goes up to close with little or no effort. I am wondering if you have a clog in the system. I did notice no movement on the latch when the roof was closing leading me to believe the latch solenoid is bad, clogged or no command from the computer. What also is confusing me is that you were able to open the latch manually without opening the petcock. You should have had a little resistance.

The pump works in both directions I will say clockwise for open and runs counter clockwise to close so why did the roof go up easier than going down. The latch and rams are a push to open and a push to close.

When you removed the pump and you had to unplug the solenoids did you have trouble with them?

Question; Did you by chance do anything to the right side ram? It has two leads that control the operation of the latch. If you have not messed with them check them to be sure the leads are connected and the switch internal to the ram is working at both top and bottom.

Sorry for jumping around on this I am short on time.

 

Hi guys Dennis thanks for the comments I tend to agree but am not giving up hope just yet!

Gus I got you PM thanks so no doubt we will catch up soon.

But some more info for thosesthat are intrested or reading

Gus the roof latch does not open full stop unless done with the allen key even then it is hard to open. But as you said this will be because the petcock is still closed.
The roof stopped resting on the latch if I press the button again I can hear the pump run but no more movement from roof or latch.
I also fully understand what you are saying that it goes up a lot better than down where if the pump was tired it would be that same both ways you would of though.

When I removed the pump I let it rest on a container in the boot and did not unplug the solenoid plugs left them all pluged on the top of the pump.
How would I go about testing the solenoids to confirm if that is the fault with the latch?

Regarding the right side ram yes I replaced it , as it was leaking fluid from the top seal.
Replaced with another that had the wiring loom attached (3 leads and a wiring plug) so unpluged the old unit and installed the new by pluging it in under the rear seat. I also tested the micro switchs in the ram with my multimeter to confirm they were working before installing it. As with the roof latch 3 as well.

 

Galee,

Oh, jeez, I wasn't trying to discourage you. Ruling out a tired pump would be the best of all worlds as this is the big ticket item.

What I hear at the 25 sec. point in video #1 sounds to me like cavitation ... air. I wonder if other people will have the same or a different impression.

A quick and dirty -- but less than conclusive -- test on the solenoids would be to see if they get warm as you use the system. They should.

Hang in there ...

 

Time for that £180 pump IMHO.
Last one in the UK - if it doesn't fix it put it back on EBay.