Hi!

the gaskets that seal the fuel cap to the housing are crumbling on my '72 XJ6. I ordered two new ones, but I sheepishly admit I can't figure out how to get the old ones off. There looks like a bell shaped metal piece that holds them down to the roof of the cap, but I'm hesitating to start prying at it as it looks like it's delicate.

Anyone have the tips and tricks on the procedure so I don't have to hack mine up?

Much appreciated!

Brian

 

Hello, Brian,
The gaskets actually fit in a deep slot. Getting the old ones out is relatively easy, you must pull on them until they break, making sure you have all the old rubber out of the seating area. This can be tricky if bits insist on sticking in the depths. I use a very small blade screwdriver.

Getting the new ones in, however, is a little more difficult.

Start by putting one new gasket over that "bell shape" and work it into the slot the old one came out of. Continue working the gasket into the slot, stretching it all the way around until it's well seated. This will take some time, patience and maybe a beer or 2.

It might seem like the tin retainer will cut the rubber but they have engineered these things to a gnat's eyebrow. Some recommend a little petroleum jelly but I personally feel that deteriorates the rubber.

The second copy isn't necessarily easier, even though you have a better idea what you're doing. But when you're done you can be confident that you'll probably Never have to do it Ever Again!
(';')

 

Where did you get the gaskets, I have been unable to find a set

 

If you are worried about vaseline you could try some brake grease or even washing up liquid.

 

Yikes, those are really complicated.


I need to fix mine. but, they are a simple diaphragm like devices
held in place by pressure washers. Fiddly, and don't drop them intot he tanks!!!


Our messy SMOG inspections include a test for leakage. How the h..
do they test Jaguar caps? I suspect they just don't. But, do charge for it!!


Vaseline is a trade name for petroleum jelly. Many uses. And brake "grease" is as well. Since the gaskets will be exposed to gasoline/petrol, a petroleum product, I see no added risk.


But, soap[ works well.


Carl

 

Drop them in hot soapy water and install.

 

Thanks for the info gents!

1.) I got them at CJ Barratt. cheap, too.

2.) So glad I asked rather than start taking things apart. I'll try the hot soapy water trick first.

Great ideas !