I just bought a 1997 Jaguar XJ6 and am working on fixing a leak on the return line. I originally fixed a leak in the supply line, added some fresh fuel and went to start it, but I could smell fuel and found that the return line had started leaking. It stopped leaking, and it was late so I decided to fix it in the morning. When I went out in the morning there was fuel everywhere and it had started leaking again. I removed the gas cap to relieve pressure and that temporarily stopped the leak, but it started up again a couple of hours later. I am wondering why the there is pressure in the return line to make it continuously leak, especially since the fuel pump wasn't on so it shouldn't have pressure? Does anyone have a diagram of the fuel lines and how they connect into the tank? Does the return line go into the bottom of the tank or the top?
-Any help is appreciated, Thanks

 

There are 2 systems on the X300

A single fuel rectangle vapor canister fwd of the left rear tire and a double with one on each left and right rear tire

2 links coming

See page 60 , this manual covers 4 engines and yours is the AJ16

801S TITLE (jagrepair.com)

And section 5 below :

 

G'day Odpuskas123,

Both the supply and return fuel lines line fit into the lower forward edge of the fuel tank.

If you get under the car and look in the area above the propellor shaft rear rubber donut you will see them.

Access is tight and the fuel lines are of the quick disconnect type and you will need to use the proper disconnect tool to release the fittings from the tank.

Drain the tank first before you disconnect the fuel lines. The fuel filter is in the same area.

Cheers,
Jeff.

 

Hey thanks for your help. Those manuals are great. I think the reason that the fuel was continuously coming out must have been because the one way check valve in the return line was stuck open. If I am not mistaken, the return line doesn't doesn't just pump fuel back into the tank, but into the jet pump and then back into the fuel pump? Also, does anyone have more manuals for this engine? The more manuals I have to look through the better.
-Thanks, Oden

 

Have a look here,

https://www.jaguarforums.com/forum/x...48/#post263943

you should find what you need.

Cheers,
Jeff.

 

Okay, so I fixed the fuel lines and got the car started. I noticed that the instrument cluster doesn't read anything. Is this a common problem that people have a solution for, or will I just have to follow all the wiring until I find the problem? Also, I can only see some of the numbers on the LCD clock. Is that also a common problem?
-Oden

 

There are a few fuses on page 22

I blew these when I installed the battery in backwards ......................... twice

X300 1996 LWB.pdf (jagrepair.com)

While you are at the left heelboard fuse box have the key in the run position and engine not started , remove the relay in the corner of the fuse box and it must click in your fingers

Watch your alternator performance as it may be compromised

 

Hey Parker 7 I noticed that the big manual only goes to page 100 which is the end of section 5. Do you by any chance have the rest of that manual? It would be great if I could read the rest of it.
-Thanks, Oden

 

It was a large 521 page document that I broke in 5 parts , but my computer has issues now

 

Ding

 

Wow thanks Parker 7. Do you have pages 101 to 200?

 

Yep

 

Thanks again Parker 7, that is a huge help!

 

A trivial point by comparison, but yes, the lcd clocks do lose numbers. Multiple threads on the subject, but long story short, it can be repaired if you are patient and know how to use a soldering iron.

 

Hey, I was just putting the left back tire on when I noticed that one of the lug nuts would not tighten all the way. It would get to a certain tightness and then just keep spinning around. I took the tire off and removed this metal plate that was between the tire and the wheel hub and tried to tighten the lug nut again, and this time it did tighten all the way. For fun I took the tire off again and put the disc back in, and this time when I went to tighten it, the whole stud came out. How are you supposed to remove the studs, so that I can put on a new stud? Can you remove them individually, or are you supposed to replace them all at once? And what is that metal disc that goes between the tire and hub?
-Oden