Holley Flooding - Question on Needle Valve Assembly
#1
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Holley Flooding - Question on Needle Valve Assembly
My Holley 4150 starting flooding from the secondaries yesterday when I went to start the car. I could hear fuel spilling into intake. Probably spilled 1/4 cup of fuel.
I pulled the needle valve assembly and they are not dirty. However, the rubber o-ring spins freely on the needle valve assembly. I am suspecting that this is my problem.
The front needle valve does the same but it was not leaking and the front needle valve assembly seems to have a slightly tighter fit.
My plan is to replace both needle valve assemblies and go from there.
Should I be worried about he 1/4 cup or so of fuel having washed down cylinder walls? My thought was to pull plugs and put small squirt of oil on each cylinder, crank over a couple of times to blow out any excess fuel.
Figured I would change the oil as well. Really sucks since its just recently changed and its that purple stuff that costs green stuff.
Thanks....Kevin
I pulled the needle valve assembly and they are not dirty. However, the rubber o-ring spins freely on the needle valve assembly. I am suspecting that this is my problem.
The front needle valve does the same but it was not leaking and the front needle valve assembly seems to have a slightly tighter fit.
My plan is to replace both needle valve assemblies and go from there.
Should I be worried about he 1/4 cup or so of fuel having washed down cylinder walls? My thought was to pull plugs and put small squirt of oil on each cylinder, crank over a couple of times to blow out any excess fuel.
Figured I would change the oil as well. Really sucks since its just recently changed and its that purple stuff that costs green stuff.
Thanks....Kevin
#3
Make sure the float moves smoothly and that your filters are in good order. Some times a piece of dirt keeps them from seating. You may have knocked it loose when you pulled the bowls.
I wouldn't worry about the fuel. If you think it was a lot then go a head and pull the plugs and crank it over for a few seconds so you don't hydrolock the motor. I wouldn't worry about the oil either.
I wouldn't worry about the fuel. If you think it was a lot then go a head and pull the plugs and crank it over for a few seconds so you don't hydrolock the motor. I wouldn't worry about the oil either.