305 carburetor
#1
305 carburetor
Looking for a rochester carb 4 bbl merc.# 1347-9661a3
I have put in a new fuel pump and 2 people have rebuilt it and gas still comes over the top and runs down the intake. Fuel pressure is 6psi.The one guy told the float is set very low he has tryed it at different heights. what do you guys think?
I have put in a new fuel pump and 2 people have rebuilt it and gas still comes over the top and runs down the intake. Fuel pressure is 6psi.The one guy told the float is set very low he has tryed it at different heights. what do you guys think?
#2
Fast Singles Club
Gold Member
iTrader: (8)
Sounds like the gasket under the needle seat is leaking . Can also be a bad float or needle . These are the three things that control fuel flow and fuel level , if any one of these are bad the carb will flood .
#5
Fast Singles Club
Gold Member
iTrader: (8)
Was it flooding before it was rebuilt ? Is the needle hanging towards the float or away from it , talking about the little needle hanger . It should be toward the float . Seat snugged down good ? These carbs don't just flood for no reason , something is being overlooked .
#8
Platinum Member
Platinum Member
A properly sealing float/needle combo will seal at up to 9 psi.
6 psi is perfectly fine.
You need to check your float for a leak (if it's brass) or see if it may be hitting something that keeps it from closing all the way, or simply replace the needle and seat.
MC
6 psi is perfectly fine.
You need to check your float for a leak (if it's brass) or see if it may be hitting something that keeps it from closing all the way, or simply replace the needle and seat.
MC