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Cooper S Boot Fuel Line layout
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Author:  John Sneddon [ Sun Jan 08, 2017 11:10 am ]
Post subject:  Cooper S Boot Fuel Line layout

Can anyone help me with a photo showing the correct route for the left to right fuel line and the run of the two vent lines please.

Author:  ianscampbell [ Sun Jan 08, 2017 1:36 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

Hi John, I can photo mine if you like, but the layout of the vent pipes is different for 1965, then 1966 & 1967 thereafter. I think the fuel lines were all the same though?
Mine is a 1966 with the vent pipe clips instead of tags at the RH tank, & there are a few 1965 cars over here in Adelaide with (correctly) no clips or tags at the RH tank.

Author:  gtogreen1969 [ Sun Jan 08, 2017 2:21 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

My car is about 500 after yours so it should be similar.

Image

Attachment:
20160925_133350.jpg

Attachment:
20160925_133611.jpg

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20160925_133606.jpg

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20160925_133359.jpg

Author:  gtogreen1969 [ Sun Jan 08, 2017 2:54 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

Attachment:
Left side.jpg

Attachment:
Middle.jpg

Attachment:
Right Side.jpg

Author:  phillb [ Sun Jan 08, 2017 3:59 pm ]
Post subject:  Cooper S Boot Fuel Line layout

gtogreen1969 wrote:
Attachment:
Left side.jpg

Attachment:
Middle.jpg

Attachment:
Right Side.jpg


What material are your vent pipes made from?


Sent from my iPad using Tapatalk

Author:  gtogreen1969 [ Sun Jan 08, 2017 4:08 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

phillb wrote:
gtogreen1969 wrote:
Attachment:
Left side.jpg

Attachment:
Middle.jpg

Attachment:
Right Side.jpg


What material are your vent pipes made from?


Sent from my iPad using Tapatalk

Its a hard black plastic. I have never pulled them off to check the wall thickness or ID.

Author:  miniron [ Sun Jan 08, 2017 5:20 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

The tank vent pipes must cross over to the other side irrespective of how the are held in position.
If they don't and you park in a street with a large camber and full tanks, fuel from the RH tank will move across to the LH tank via the interconnecting fuel pipe, which will then cause the LH tank to overflow via the vent pipe onto the ground under the LHS of the car.
There are 2 reasons to avoid this:
A: You waste fuel
B: The muffler and fuel pump are on that side and the potential for a fire under your prized S is high.

RonR

Author:  Bill B [ Sun Jan 08, 2017 7:57 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

phillb wrote:

What material are your vent pipes made from?

Have recently fitted out the boot on my project and found vent pipe tube at (defunct) Masters. It is black nylon 1/4 inch OD and a tight 5/32 ID. Fitted perfectly on tank outlets and cost about $1.50/meter. Looks identical to original. Should have bought the roll and cornered the market!

Author:  John Sneddon [ Mon Jan 09, 2017 8:06 am ]
Post subject:  Re: Cooper S Boot Fuel Line layout

Thank you - all sorted now.

Author:  Stibbsy [ Mon Sep 10, 2018 12:08 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

To get this right in my head. The right hand vent pipe crosses over to the left and pokes through the boot floor and visa/versa for the left pipe.

Author:  winabbey [ Mon Sep 10, 2018 1:02 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

Stibbsy wrote:
To get this right in my head. The right hand vent pipe crosses over to the left and pokes through the boot floor and visa/versa for the left pipe.

That's correct. When parked on an incline the fuel level in the two tanks equalises because they are connected by a pipe at the bottom. In an extreme case with full tanks the fuel level in the tank on the lower side may rise to the point where it exits through the breather tube. Keeping the breather tubes high under the parcel shelf and crossing over means fuel is less likely to spill through them onto the road.

Author:  Phil 850 [ Mon Sep 10, 2018 9:36 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

So, you couldn't have vented fuel caps then as the fuel in the right hand tank could drain across and overfill the left tank and spill out through the vented cap if it had one ?

Author:  9YaTaH [ Tue Sep 11, 2018 2:07 pm ]
Post subject:  Re: Cooper S Boot Fuel Line layout

miniron wrote:
The tank vent pipes must cross over to the other side irrespective of how the are held in position.
If they don't and you park in a street with a large camber and full tanks, fuel from the RH tank will move across to the LH tank via the interconnecting fuel pipe, which will then cause the LH tank to overflow via the vent pipe onto the ground under the LHS of the car.
There are 2 reasons to avoid this:
A: You waste fuel
B: The muffler and fuel pump are on that side and the potential for a fire under your prized S is high.

RonR


Yep..what, Ron said :D

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