Too much gas

Woodchiper · 09-13-2014, 04:02 AM

It's been a while since I have been on here other than reading other post. I just did a complete rebuild on my 91 3pg 2 cyc. Now I have a problem with gas filling the crankcase and flooding everything out filling the air filter tube. Any sujestions on this?

Thank You and have a great day

1989Marathon · 09-13-2014, 06:10 AM

The float is probably stuck. Mine did the same thing. It will siphon gas out of the tank until the fuel level gets low enough that it can't anymore.

Woodchiper · 09-13-2014, 07:05 AM

Thanks for the reply! I have had the Carburator off and cleaned it , adjusted the float.

1989Marathon · 09-13-2014, 07:14 AM

Did this start since you adjusted the float, or did you adjust the float to try and fix the issue?

Woodchiper · 09-13-2014, 05:14 PM

It started as soon as I tried to start it after the rebuild then I started to mess with the carb. I since then learned that it could be that the lower diagramed on the fuel pump could be broken,, I will get into this when I get to it. Sometime Monday or Tuesday. Thanks

1989Marathon · 09-13-2014, 05:39 PM

A torn diaphram in the pump will be able to fill the crankcase with fuel, but it is highly unlikely that it will allow it into the air intake.

Woodchiper · 09-14-2014, 03:04 AM

OK I got another Carburator. I'll put that on and see what happens. Thanks

sccowboy · 09-14-2014, 09:56 AM

Id bank on fuel pump...... and its cheap to just replace it.

cart around · 09-14-2014, 04:37 PM

If gas is getting all the way through the carburetor, and going out to the air cleaner, I would not suspect the fuel pump diaphragm.

That is more like an overflow condition caused by a needle not setting in its seat. Possible causes would be dirt jamming the needle valve, sunk float, or mis-adjusted float.

I suppose in the rare condition of a reed valve failure, pressure from the piston on the up stroke could also push the fuel out to the air cleaner.

When he changes the carburetor, we will get a better idea of what is happening.

sccowboy · 09-15-2014, 10:15 PM

Except to diagnose a fuel pump problem takes about a minute.

09-13-2014, 04:02 AM	#1
Woodchiper Getting Wild Join Date: Mar 2011 Location: Beech Grove In. Posts: 91	Too much gas It's been a while since I have been on here other than reading other post. I just did a complete rebuild on my 91 3pg 2 cyc. Now I have a problem with gas filling the crankcase and flooding everything out filling the air filter tube. Any sujestions on this? Thank You and have a great day

09-13-2014, 06:10 AM	#2
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Too much gas The float is probably stuck. Mine did the same thing. It will siphon gas out of the tank until the fuel level gets low enough that it can't anymore.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-13-2014, 07:05 AM	#3
Woodchiper Getting Wild Join Date: Mar 2011 Location: Beech Grove In. Posts: 91	Re: Too much gas Thanks for the reply! I have had the Carburator off and cleaned it , adjusted the float.

09-13-2014, 07:14 AM	#4
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Too much gas Did this start since you adjusted the float, or did you adjust the float to try and fix the issue?
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-13-2014, 05:14 PM	#5
Woodchiper Getting Wild Join Date: Mar 2011 Location: Beech Grove In. Posts: 91	Re: Too much gas It started as soon as I tried to start it after the rebuild then I started to mess with the carb. I since then learned that it could be that the lower diagramed on the fuel pump could be broken,, I will get into this when I get to it. Sometime Monday or Tuesday. Thanks

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

09-13-2014, 05:39 PM	#6
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Too much gas A torn diaphram in the pump will be able to fill the crankcase with fuel, but it is highly unlikely that it will allow it into the air intake.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-14-2014, 03:04 AM	#7
Woodchiper Getting Wild Join Date: Mar 2011 Location: Beech Grove In. Posts: 91	Re: Too much gas OK I got another Carburator. I'll put that on and see what happens. Thanks

09-14-2014, 09:56 AM	#8
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Too much gas Id bank on fuel pump...... and its cheap to just replace it.

09-14-2014, 04:37 PM	#9
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,495	Re: Too much gas If gas is getting all the way through the carburetor, and going out to the air cleaner, I would not suspect the fuel pump diaphragm. That is more like an overflow condition caused by a needle not setting in its seat. Possible causes would be dirt jamming the needle valve, sunk float, or mis-adjusted float. I suppose in the rare condition of a reed valve failure, pressure from the piston on the up stroke could also push the fuel out to the air cleaner. When he changes the carburetor, we will get a better idea of what is happening.

09-15-2014, 10:15 PM	#10
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Too much gas Except to diagnose a fuel pump problem takes about a minute.