Fuel pressure thru the roof, 32..40..50...60.....70....going going go |
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Fuel pressure thru the roof, 32..40..50...60.....70....going going go |
914forme |
Jul 29 2005, 07:53 PM
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#1
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
Big day car back together and fired up YEAAAAAAAHHHHHHHHH!!!!!!!
Problem it is running like (IMG:http://www.914world.com/bbs2/html/emoticons/stromberg.gif) So I break out the tools of the trade Fuel Pressure gauge and timing light. 914 1974 2.0L with D-jet just so you know what your dealing with here, I work in IT but my helpdesk skills suck. So timing is dead on, but fuel pressure is running at 60 psi, so I grab the wrench and crank on the pressure regulator - never comes down, until I have the bolt in my hand then it drops to zero. DOAH! So I grab another I have in the spare EFI bin pop it in, same dang thing. Oh this is frustrating. So how do I test the return fuel line for a blockage? I have thought about air, and just seeing what I get, but not sure where the blockage would be any-thoughts of something else to check before I rip into. Note: once I got it to sit at 32 - 40 psi and it ran like it should, that last oh 1-2 seconds. TIA, Stephen |
lylegd |
Jul 29 2005, 08:04 PM
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#2
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Newbie Group: Members Posts: 49 Joined: 19-August 04 From: Fort Collins, CO Member No.: 2,574 |
You might have your pressure regulator valve installed backwards. When this is done, the regulator is totally closed all the time and what you see for pressure is the full output from your pump. You are not the only person to do this. Reverse the infeed and outfeed lines and measure the pressure again. Of course you will have to adjust it as you have moved the set screw.
Lyle |
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