fuel pump pressure?

[farmer]

hi there,have just rebuilt the engine on my stag,and came to start it,it started! ran well but carbs overflowing with petrol,have just fitted a new moprod fuel pump do these run at higher pressure than su ones or will it just be needle valves? regards simon.

[stag157.7]

hi there,have just rebuilt the engine on my stag,and came to start it,it started! ran well but carbs overflowing with petrol,have just fitted a new moprod fuel pump do these run at higher pressure than su ones or will it just be needle valves? regards simon.

hi

i had some similar probs with after market pumps

mine was pushing out 6lbs which is way too much for the needle valves which are 2 1/2 to 3 lbs

ended up fitting a regulator
that sorted it

wonder how many other flooding cars are caused by this?


alan

[elvimto]

The standard pump should put out 2.7 psi any more and as Alan said it will flood.get yourself a vacuum/pressure gauge which is a great piece of kit and cheap, and check out your fuel pressure really simple once you determine what you have that will help eliminate the guesswork. If you have to put in a regulator and set it to 2.7 psi.

cheers Stuart