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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Apr 2016
Posts: 161
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Apr 2016
Posts: 161 |
Hello all, I’m refashioning the fuel line between my pump and the carb. I currently have 1/4” hard line that connects via rubber hose to a small disposable fuel filter. I’m thinking of getting rid of the rubber hose, and going to AN4 ptfe hose and a new 40 micron fuel filter. Has anyone done this and liked how it came out? What’s the best look here- what did it look like originally? My current setup here. ![[Linked Image]](https://www.tm-img.com/images/2023/05/08/IMG_3946.jpeg) Cheers, -Nelson 66 plus 4 RHD
- Nelson
1966 Plus 4 RHD
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Joined: Aug 2015
Posts: 1,616 Likes: 143
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,616 Likes: 143 |
Have you got an electric pump or the standard AC mechanical pump.
If you have the standard mechanical pump you can make up a fine filter disc for it which keeps everything all nice and unobtrusive. The filter on my 1968 is good at filtering out the grot from the tank.
Not really a fan of braided fuel hose, as you can't visually inspect it for pin holes.
Arwyn
I
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Joined: Apr 2016
Posts: 161
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Apr 2016
Posts: 161 |
Standard AC pump. I’m right now leaning to keeping the current setup. I’m wondering if the original fuel filter was something like this fuel filter at Moss.That may be the way to go. And then when I replace the main fuel line I’ll put a 100 micron filter before the pump.
- Nelson
1966 Plus 4 RHD
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Joined: Sep 2014
Posts: 2,272 Likes: 7
Talk Morgan Expert
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Talk Morgan Expert
Joined: Sep 2014
Posts: 2,272 Likes: 7 |
I used to use a Malpassi Filter King , which doubled as a fuel pressure regulator and a filter. If you choose an electric pump it can develop pressure spikes which can upset the float chambers , setting it at 2 psi dampens this out.
Not the most pleasing addition under the bonnet from a visual perspective I agree.
Braided fuel lines are fine on competition cars where they are changed regularly, but I agree with Arwyn about their use on road cars.
Last edited by MOG 615; 09/05/23 01:37 PM.
Andy G
1999 +8 , Indigo Blue.
Ex-John McKecknie/Mike Duncan 1955 +4 racer.
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Joined: Aug 2015
Posts: 1,616 Likes: 143
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,616 Likes: 143 |
The original fuel filter is inside the fuel pump.
Its a disc of fine copper or brass mesh mounted at top of the glass bowl and in effect the petrol is sucked through the mesh by the fuel pump.
The foreign bodies fall to the bottom of the glass bowl where they can be emptied out.
I'm not sure that putting an extra filter between pump and carb is necessarily a good idea, given the potential for pressure drop through the inline filter.
May be case of try it and see although it may take some time for fuel starvation to develop as the pressure drop will be related to how clogged the filter gets
Arwyn
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