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| 1973 Clubman GT Twin Tanks https://ausmini.com/forums/viewtopic.php?f=2&t=101727 |
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| Author: | GuamMini [ Sun Feb 19, 2023 10:55 am ] |
| Post subject: | 1973 Clubman GT Twin Tanks |
Are the twin tanks in the Mini interconnected meaning you can fill up on either side and the pump will pull fuel from both? |
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| Author: | MAXRACER72 [ Sun Feb 19, 2023 11:03 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
yes the same as a Cooper S.....but remember the interconnecting pipe is only about 1/4 or 5/16 diameter so it will take quite some time for the fuel levels to balance up.....if you only fill one side, the other side will be mostly left empty until the levels balance up |
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| Author: | GuamMini [ Mon Feb 20, 2023 3:26 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
I filled one side 3 gallons (right side) and the other side about 5 (left side) after my car stopped and ran out of gas. |
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| Author: | Bill B [ Mon Feb 20, 2023 4:25 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
There might be a blockage in the tube joining the 2 tanks. If the fuel gauge shows you are nearly empty, fill RH tank only (about 1 to 3 gallons should work). Go for a short run and the fuel gauge should slowly rise. This shows the fuel is moving from the RH tank to the LH tank, which has the fuel gauge unit in it. If the car runs out of petrol again, even with petrol in the RH tank, you have a blockage stopping petrol getting from the RH tank to the LH tank and the petrol pump under the floor. |
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| Author: | timmy201 [ Mon Feb 20, 2023 5:26 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
You can also have a block in one of the tank breather pipes, which will cause one to stay higher than the other tank I added a RH tank and during one drive the RH tank breather got blocked, and caused it to stay full while the other tank was nearly empty |
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| Author: | GuamMini [ Tue Feb 21, 2023 9:51 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Is the connecting pipe under the boot floor? |
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| Author: | drmini in aust [ Tue Feb 21, 2023 10:01 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Above floor. Steel pipe. |
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| Author: | Bill B [ Tue Feb 21, 2023 10:31 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Attachment: Fuel tank interconnecting tube 2.jpg The interconnecting tube is running between the 2 tanks at the bottom of the rear seat vertical panel. The long braided hose that disappears through the floor near the LH tank goes down to the fuel pump. Fuel can move from tank to tank (if the car is parked at an angle), and both tanks can feed the fuel pump under the boot floor. There is no switch to select which tank is used by the pump. |
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| Author: | GuamMini [ Tue Feb 21, 2023 3:15 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Strange that 1 tank has more fuel than the other and it would not run with the LH tank empty |
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| Author: | Bill B [ Tue Feb 21, 2023 4:11 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
GuamMini wrote: Strange that 1 tank has more fuel than the other and it would not run with the LH tank empty That is why it suggests a blockage somewhere that is stopping fuel getting out of the RH tank. If you filled the LH tank only but nothing in the RH tank, does the fuel level in each tank equalise after 5-10 minutes? |
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| Author: | winabbey [ Tue Feb 21, 2023 5:53 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Sounds like you are getting closer to having to drain the tanks and have a good look at the lines, hoses and connections, checking for blockages. |
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| Author: | Bill B [ Tue Feb 21, 2023 6:27 pm ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
winabbey wrote: Sounds like you are getting closer to having to drain the tanks and have a good look at the lines, hoses and connections, checking for blockages. There is a small nylon strainer on the outlet pipes in both tanks - one of those could be the problem. |
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| Author: | Neilwillo [ Wed Feb 22, 2023 6:23 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
It’s also possible that the PO has incorrectly fitted one of the rubber hoses on the end of the steel joining pipe and it’s kinked underneath the tank. Mine had one length that was too long and it was folded in on itself to get it in there Neil |
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| Author: | drmini in aust [ Wed Feb 22, 2023 6:30 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
Bill B wrote: winabbey wrote: Sounds like you are getting closer to having to drain the tanks and have a good look at the lines, hoses and connections, checking for blockages. There is a small nylon strainer on the outlet pipes in both tanks - one of those could be the problem. One of these was blocked on mine after I rust converted the tank. I put a drill through it and fitted a filter before the pump. |
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| Author: | GuamMini [ Thu Jul 06, 2023 9:02 am ] |
| Post subject: | Re: 1973 Clubman GT Twin Tanks |
I got to find the time to do this, thanks everyone |
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