 Fuel pump pressure relief and checkvalve |
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| saigon71 |
 Nov 30 2009, 10:06 PM
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Advanced Member  Group: Members Posts: 2,000 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region 
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Will have time tomorrow to work on the car. 74 2.0 D-jet. Car starts right up cold but requires two taps on the accelerator to keep it from stalling - after that, it runs great. I will be checking the routing of the fuel hoses as recommended by Rich.
Another reply questioned the proper functioning of the fuel pump pressure relief and check valve in the fuel pump. Fuel pressure set at 30PSI when the starter cranks. Pressure drops immediately to 20 PSI when the starter disengages. From 20 PSI, it bleeds down to zero within four minutes...but I have no idea if this is normal. Has anyone taken the pressure relief and checkvalve out of their fuel pump and cleaned/replaced the springs? Is this recommended? Thanks. |
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| type47 |
Dec 1 2009, 10:23 AM
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
I see your comments about cranking fuel pressure, etc. What is fuel pressure when the engine is running? Should be about 30 psi as mentioned above.
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Posts in this topic
saigon71 Fuel pump pressure relief and checkvalve Nov 30 2009, 10:06 PM
davesprinkle
Will have time tomorrow to work on the car. 74 2... Nov 30 2009, 11:04 PM
saigon71
Will have time tomorrow to work on the car. 74 ... Dec 1 2009, 10:14 AM underthetire If it is bleeding off to fast, probably a fuel inj... Dec 1 2009, 11:27 AM Cap'n Krusty It's doping what it's supposed to do. Jum... Dec 1 2009, 11:47 AM underthetire
It's doping what it's supposed to do. Ju... Dec 1 2009, 11:50 AM swl So back to the original question - he needs extra ... Dec 1 2009, 08:21 PM |
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