 Fuel Injector pattern or lack there of, it wants to start really it does |
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| tdgray |
 May 7 2006, 02:40 PM
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Thank God Nemo is not here to see this  Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None  |
Ok so here it is.
Replaced the fuel pump with an MSD (sorry Jake). Fuel pressure regulator is almost set as high as it will go. Tried multiple settings no change. Visually looked at the spray pattern of the fuel injectors. Basically a straight squirt. definitely not a mist which is what I expected. Is this right? The engine sounds as if it wants to start when I crank it. If I squirt some fuel down the throttle body it fires right up (and races like hell of course). So it's not a timing etc problem Are the injectors bad? Am I not getting enough pressure from the MSD pump? I tried to build a homemade pressure regulator but it does not seem to work very well. Can an injector go bad but still spit some fuel? What is the pattern supposed to look like? Should I just bite the bullit and get four new injectors just to be safe? HELP TOTALLY CONFUSED |
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| tdgray |
May 7 2006, 05:40 PM
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Thank God Nemo is not here to see this Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None |
Thanks Doc...
Got a in-line fuel pressure gauge on order from Jegs as we speak. I am getting the thought that the MSD fuelpump is not cutting it. Will verify when the gauge gets here. Just for confirmation... I should install the guage between the regualtor and the fuel rail correct???? Thanks guys..as usual |
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| Bartlett 914 |
May 7 2006, 06:00 PM
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
QUOTE(tdgray @ May 7 2006, 03:40 PM)  Thanks Doc... Got a in-line fuel pressure gauge on order from Jegs as we speak. I am getting the thought that the MSD fuelpump is not cutting it. Will verify when the gauge gets here. Just for confirmation... I should install the guage between the regualtor and the fuel rail correct???? Thanks guys..as usual The pressure gage should be inserted between the injectors on the passenger side. There should be a port that is capped off. On the drivers side this port feeds the cold start injector. I made my own fuel pressure gage. I purchased a gage from McMaster Carr pretty cheap. It is glycerine filled and goes to 60 PSI. Added some fuel line and I was done. |
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Posts in this topic
tdgray Fuel Injector pattern or lack there of May 7 2006, 02:40 PM
Dr Evil Hey man, the pintle (sp) in the tip of the injecto... May 7 2006, 02:51 PM
Bartlett 914 |
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