Need Help with tuning Webers

[G.R.]

Originally Posted by priobe

Thanks for the words of encourgement.
Its just that every time I try to post a problem about these webers, I never seem to get a response to my questions.

Here is a pretty simple question that I can not seem to find an answer to.....

I am experiencing a problem as well as others on CC, that when you start your motor with webers the fuel pressure starts to fade.

Anwsers
1. Is this normal
2. Is this a bad pressure gauge
3. Is it a bad fuel pump
4. Nobody seems to know the answer


what should the pressure be set too if it fades after the motor warms up. the cold setting or the warm setting. If you set it to the cold setting, how do you know if you are getting the correct pressure when it is warm? And vice versa.

Priobe,
I think the gauge pressure fade is more common than not. I've set mine with both the engine cold and warm I've found in my case that the warm engine setting, 3lbs, increases to about a 6lbs reading upon a cold start until the engine warms up and a rich mixture, lots of smoke out of the exhaust results and over time it drops to about 2lbs. I finally went back to a cold engine set of 3.5lbs and have left it at that, as long as I have fuel the engine runs well, the pressure will also show a drop to about 2-2.5lbs after being run for awhile. I'm using an Aeromotive 0-15lb "dry" gauge. I think if the fuel pump was bad you'd develop erratic pressure readings .

Gary