 Can I use a Carter’s inline pump AND a fuel return line?, Or do I need a three port pump? |
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| tornik550 |
 Jan 19 2019, 03:48 PM
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Senior Member  Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None  |
I recently changed to PMO carbs. I have the PMO fuel pressure regulator which calls for the use of the fuel return line. I previously had used a Carter inline pump and did not have the return line hooked up.
I am installing new metal fuel lines from tangerine. I figure that if I am replacing lines, I might as well replace the return line also (even if I don’t use it). My question is- can I use the same carters inline pump and also use the fuel return line or do I have to get a fuel pump that has a return port? I have never used a fuel return line so I have a poor understanding of its function- I am not clear if any sort of pump pressure is needed to get the fuel to return? |
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| Mark Henry |
Jan 19 2019, 03:52 PM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
The return comes off of PMO regulator.
One in from pump, one out (return) and two to the carbs, one for each carb. |
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| tornik550 |
Jan 19 2019, 04:05 PM
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#3
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Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
So do I run the line directly from the pmo regulator up front to the fuel tank?
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| mb911 |
Jan 19 2019, 04:07 PM
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#4
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914 Guru Group: Members Posts: 6,794 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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QUOTE(tornik550 @ Jan 19 2019, 02:05 PM)  So do I run the line directly from the pmo regulator up front to the fuel tank? Yes and That's what I am doing on my test stand  |
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| Mark Henry |
Jan 19 2019, 07:50 PM
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#5
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Interested in a mount for the PMO regulator?
Needs no holes drilled into the car. Easy to see the gauge and adjust the pressure. I'm thinking $35 shipping included. I'll post some pics later tonight. |
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| Mark Henry |
Jan 19 2019, 10:02 PM
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#6
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
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