Holley Guys! Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevemall · 04-25-2005, 12:09 PM

I can't get the fuel to stop pouring into the carb!
I have the primaries set-up good but the sec. bowls won't stop flowing?
I have the Float adj. screwed all the way down but it still is coming out
the check hole.

Any ideas?

Its a Holley 4150 with center hung float bowls, w/ dual feed single pump.

Help! I just wasted my plugs, oil and filter

Brainchild · 04-25-2005, 12:24 PM

Sounds like the needle and seat are stuck,or wornout.Or the float is bad.Either way that's what shuts the gas off,that's where I would look first.

67chevemall · 04-25-2005, 01:57 PM

Ya those parts are new? Could it be the float is sunk or the spring return is no good.
These bowls should handle stock fuel pump pressure right?

Where do you guys have your float adj?? almost at the bottom ( screwed in all the way) or in the middle ? Mine seems to like the screw almost all the way in?
Which leaves no room for play!
??

RON WOODGEARD · 04-25-2005, 02:36 PM

You have to adjust the secondaries, not turn the screw all the way in.. If you don't want any fuel to run to the secondaries, ( which doesn't make sence) you will have to stop the fuel flow to the secondaries altogether..

To adjust the floats on a Holley, Unscrew the brass plugs and adjust the adjusters ( screw on top) until the fuel ( while the car/truck is running) is just seeping out the bottom of the brass plug hole..

67chevemall · 04-25-2005, 03:18 PM

I've tried that but all the way up it pour in and all the way down it does the same.

sneakysnake · 04-25-2005, 03:36 PM

You might try pulling the whole needle and seat out other wise you are gonna have to jerk the bowl off and see why the float isnt rising and the needle not seating to shut the flow of gas off

RON WOODGEARD · 04-25-2005, 03:49 PM

You are going to have to take the bowl off and Re-adjust the float. When it was cranked down it bent the tabs on the float itself..

You can remove both bowls and get an idea fron the front one about where the tabs should be.

Sorry, I didn't think about this until Sneakysnake posted. If I was there I could help you,,, Sorry...

67chevemall · 04-25-2005, 04:36 PM

Thanks guys! I am going to pull the bowls to see what's up!
I wasn't sure if maybe the fuel psi was to much but it is a stock pump so that can't be it.

67chevemall · 04-26-2005, 09:22 AM

I took the plugs out and there was ALOT of fuel in the cylinders.
cleaned up the plugs and took the main fuel line off.
It started right up and I was able to move it where I needed it to be.
I then put the fuel line back on and tried it and I really have a problem
with the back bowl...........?

I going to take the carb off tonight and see what the ......

67chevemall · 05-02-2005, 07:37 AM

The bowl was bent down so I fixed it and set it on the bench.
Now it runs with no leaks

Now it is back fireing like crazy.

04-25-2005, 12:09 PM	#1
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Holley Guys! Help I can't get the fuel to stop pouring into the carb! I have the primaries set-up good but the sec. bowls won't stop flowing? I have the Float adj. screwed all the way down but it still is coming out the check hole. Any ideas? Its a Holley 4150 with center hung float bowls, w/ dual feed single pump. Help! I just wasted my plugs, oil and filter __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

04-25-2005, 12:24 PM	#2
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Sounds like the needle and seat are stuck,or wornout.Or the float is bad.Either way that's what shuts the gas off,that's where I would look first. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website Last edited by Brainchild; 04-25-2005 at 12:25 PM.

04-25-2005, 01:57 PM	#3
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Ya those parts are new? Could it be the float is sunk or the spring return is no good. These bowls should handle stock fuel pump pressure right? Where do you guys have your float adj?? almost at the bottom ( screwed in all the way) or in the middle ? Mine seems to like the screw almost all the way in? Which leaves no room for play! ?? __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

04-25-2005, 03:18 PM	#5
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	I've tried that but all the way up it pour in and all the way down it does the same. __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

04-25-2005, 03:36 PM	#6
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	You might try pulling the whole needle and seat out other wise you are gonna have to jerk the bowl off and see why the float isnt rising and the needle not seating to shut the flow of gas off Attached Images

04-25-2005, 02:36 PM	#4
RON WOODGEARD Resident Young Old Dude ! Join Date: Jul 2001 Location: Nevada Posts: 1,948	You have to adjust the secondaries, not turn the screw all the way in.. If you don't want any fuel to run to the secondaries, ( which doesn't make sence) you will have to stop the fuel flow to the secondaries altogether.. To adjust the floats on a Holley, Unscrew the brass plugs and adjust the adjusters ( screw on top) until the fuel ( while the car/truck is running) is just seeping out the bottom of the brass plug hole..

04-25-2005, 03:49 PM	#7
RON WOODGEARD Resident Young Old Dude ! Join Date: Jul 2001 Location: Nevada Posts: 1,948	You are going to have to take the bowl off and Re-adjust the float. When it was cranked down it bent the tabs on the float itself.. You can remove both bowls and get an idea fron the front one about where the tabs should be. Sorry, I didn't think about this until Sneakysnake posted. If I was there I could help you,,, Sorry...

04-25-2005, 04:36 PM	#8
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Thanks guys! I am going to pull the bowls to see what's up! I wasn't sure if maybe the fuel psi was to much but it is a stock pump so that can't be it. __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

04-26-2005, 09:22 AM	#9
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	I took the plugs out and there was ALOT of fuel in the cylinders. cleaned up the plugs and took the main fuel line off. It started right up and I was able to move it where I needed it to be. I then put the fuel line back on and tried it and I really have a problem with the back bowl...........? I going to take the carb off tonight and see what the ......

05-02-2005, 07:37 AM	#10
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	The bowl was bent down so I fixed it and set it on the bench. Now it runs with no leaks Now it is back fireing like crazy.



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