Finally got my engine running properly

Joined
Apr 26, 2003
Messages
279
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Mountains of WV
To all that helped me work through my running problems: Thanks! For those not following along, my brand new weber was having severe trouble on my rebuilt engine. Basically I checked everything, resealed everything, and replaced all vac lines... and it still ran horribly. I began to fear I had installed somethinginternally wrong.. as a last ditch effort, I pulled the fuel pressure regulator off that I was running (everyone says the weber needs 3 psi). Turns out that the regulator was the problem. The regulator was aparently starving the motor at WOT.. I am presently running it without one right now until I can swap an electric pump with a regulator. I think the factory pump does not work well with a inline type regulator.. BTW, too much fuel pressure, will that only erode the needle/seat over time, or does it do more damage? I called MAF about the regulator, they say that they stopped using them on all their installs because of similar running problems.

Mike
 

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Oh...Durka Durka Durka.
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Oct 1, 2003
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MN
I have ran a stock Toyota fuel pump on my 38mm Weber equipt 2F without a fuel regulator since '92. No carb/fuel issues here.

-Steve
 
Joined
Oct 31, 2002
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BTW, too much fuel pressure, will that only erode the needle/seat over time, or does it do more damage?

AFAIK, that is the only thing that will happen when running to much fuel pressure over time. I was wondering if you ever put an inline FP gauge in to see what pressure your mechanical was putting out ?
 

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