Fuel check valve and the 3port fuel pump |
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Fuel check valve and the 3port fuel pump |
brant |
Sep 10 2016, 07:54 AM
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#1
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914 Wizard Group: Members Posts: 11,624 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I think there must be a check valve built into the 3 port djet pump
I believe mine is not working (Hard starting symptoms) Has anyone pulled theirs apart? Pictures or a thread? I'm also wondering if adding an in line check valve would work? |
Dave_Darling |
Sep 23 2016, 04:27 PM
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#2
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I think the references to "check valve" either misinterpret the over-pressure valve, or are references to the fuel not being able to flow backwards through the pump stage.
To test the regulator, you can get an extra piece of fuel hose and run it from the regulator outlet to a good-sized container. Run the fuel pump until you get to 29 PSI, then stop. If a lot of fuel keeps coming out of the regulator outlet while the pressure drops, the regulator is probably letting the pressure out. If no fuel comes out, and the pressure drops, pull the injectors off of the engine while leaving them connected to the fuel lines. Check for leaks. Ditto the cold-start valve. --DD |
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