Which Tank of Gas
Which Tank of Gas
#2
06-17-2009, 04:33 PM
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#4
06-18-2009, 10:14 AM
My 1980 4.2 XJ6 didn't have either sending unit working when I bought it. So, upon advice from a longtime jag mechanic, a valve conversion was installed that links the two tanks together and only one sending unit is needed. I leave the button out (yes, out WAS for the right hand tank) and ignore it. Cost for valve and install was about $400. Just something to consider down the road.
#5
06-22-2009, 09:49 PM
#6
07-04-2009, 09:49 PM
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hi fellas
i'm new here and to the whole jag thing, just been given a 1984 xj v12 5.4 its in fair to good nick. The present owner had fitted a new battery for me and had the thing fired up on two consecutive days and drove it about his garden. I went to pick it up and it fired, ran and as soon as the throttle was pressed gave up. I put fresh fuel in the right tank it took only 10ltr to fill. its showing as empty on dial. Is the right tank the reserve and smaller than the left i have the selector switch in the out position with the r showing. We flattened the battery trying to restart once it had stopped. Does the dial give an overall picture of the fuel situation or does it also switch between tanks when operating changeover switch.
Any help would be great.
Rich
i'm new here and to the whole jag thing, just been given a 1984 xj v12 5.4 its in fair to good nick. The present owner had fitted a new battery for me and had the thing fired up on two consecutive days and drove it about his garden. I went to pick it up and it fired, ran and as soon as the throttle was pressed gave up. I put fresh fuel in the right tank it took only 10ltr to fill. its showing as empty on dial. Is the right tank the reserve and smaller than the left i have the selector switch in the out position with the r showing. We flattened the battery trying to restart once it had stopped. Does the dial give an overall picture of the fuel situation or does it also switch between tanks when operating changeover switch.
Any help would be great.
Rich
#7
07-04-2009, 10:47 PM
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hi fellas
i'm new here and to the whole jag thing, just been given a 1984 xj v12 5.4 its in fair to good nick. The present owner had fitted a new battery for me and had the thing fired up on two consecutive days and drove it about his garden. I went to pick it up and it fired, ran and as soon as the throttle was pressed gave up. I put fresh fuel in the right tank it took only 10ltr to fill. its showing as empty on dial. Is the right tank the reserve and smaller than the left i have the selector switch in the out position with the r showing. We flattened the battery trying to restart once it had stopped. Does the dial give an overall picture of the fuel situation or does it also switch between tanks when operating changeover switch.
Any help would be great.
Rich
i'm new here and to the whole jag thing, just been given a 1984 xj v12 5.4 its in fair to good nick. The present owner had fitted a new battery for me and had the thing fired up on two consecutive days and drove it about his garden. I went to pick it up and it fired, ran and as soon as the throttle was pressed gave up. I put fresh fuel in the right tank it took only 10ltr to fill. its showing as empty on dial. Is the right tank the reserve and smaller than the left i have the selector switch in the out position with the r showing. We flattened the battery trying to restart once it had stopped. Does the dial give an overall picture of the fuel situation or does it also switch between tanks when operating changeover switch.
Any help would be great.
Rich
Both tanks are the same size, about 12 US gallons.
Each tank has its own fuel level sending unit. The changeover switch is dual function: switches which tank fuel is draw from and also switches the sending unit
Rusty tanks are a common problem on these cars, especially if they have sat unused for some time. My gut feeling is thet you have a rust-in-the-fuel problem but of course that's only one possibilty. Removing the fuel filter and emptying the contents into a clean container might reveal important clues
Cheers
DD
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#10
07-06-2009, 11:24 AM
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#11
07-06-2009, 12:29 PM
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Do you know if the fuel in the tank will have degraded, it has been sitting for about 18 months. It has ran a few times mind and had ran really well until i came to pick her up DOH!!!
Have you got any photos up of your xj6??
Cheers
Rich
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