The Ford Barn

31 Woody · 02-08-2015, 08:08 PM

I've been having carb problems lately, typically I run a Tillotson because it worked great. However, a few weeks back I started having idling problems--as in it doesn't idle. It dies if you don't have the idle fast using the column lever. The carb is clean in and out, I pulled it apart again today and cleaned it with spray carb cleaner blowing through all the passages. It still has the same problem of not idling. It ran perfectly before... Ideas?

The second carb problem is my backup carb. The backup is a side bowl late 31 Zenith. It was rebuilt, but when you turn the gas on it just pours out the back. The float seems adjusted right based on my measurements and remeasurements. Could the needle/seat assembly just be "bad". Other thoughts or suggestions?

Thanks!

Mitch//pa · 02-08-2015, 08:14 PM

ck for a vacuum leak at the intake

tbirdtbird · 02-08-2015, 08:31 PM

"it just pours out the back."

you answered your own question.

Mitch//pa · 02-08-2015, 08:32 PM

Quote:

Originally Posted by tbirdtbird

"it just pours out the back."

you answered your own question.

yes the back up carb... i am answering his original Tillotson issue

never mind i got mixed up thought you were responding to me

tbirdtbird · 02-08-2015, 08:36 PM

LOL it was a 2-question final exam.
You took part A and I grabbed Part B

Purdy Swoft · 02-08-2015, 08:56 PM

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If the back up carb is pouring, it could be a stuck needle valve or a hole in the float. If the needle is stuck, usually tapping firmly but not hard enough to break it with a small hammer or the handle of a screwdriver on the upper housing above the needle valve . If its trash causing the needle to stick, this should help. The next thing would be to remove the bolt under the bottom that holds the halves of the housing together and remove and inspect the float .

31 Woody · 02-13-2015, 10:47 PM

I think we can rule out an intake leak. I replaced the gaskets, checked the recently milled intake/exhaust alignment which is dead on, checked for a leak at the wiper/line, and looked for cracks. Unfortunately, it still dies when idling down.

02-08-2015, 08:08 PM	#1
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Carburetor problems I've been having carb problems lately, typically I run a Tillotson because it worked great. However, a few weeks back I started having idling problems--as in it doesn't idle. It dies if you don't have the idle fast using the column lever. The carb is clean in and out, I pulled it apart again today and cleaned it with spray carb cleaner blowing through all the passages. It still has the same problem of not idling. It ran perfectly before... Ideas? The second carb problem is my backup carb. The backup is a side bowl late 31 Zenith. It was rebuilt, but when you turn the gas on it just pours out the back. The float seems adjusted right based on my measurements and remeasurements. Could the needle/seat assembly just be "bad". Other thoughts or suggestions? Thanks! __________________ Experience is a cruel teacher. It gives the exam first, then the lesson.

02-08-2015, 08:14 PM	#2
Mitch//pa BANNED Join Date: May 2010 Location: Bucks County, PA Posts: 11,454	Re: Carburetor problems ck for a vacuum leak at the intake

02-08-2015, 08:31 PM	#3
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: Carburetor problems "it just pours out the back." you answered your own question. __________________ '31 180A

02-08-2015, 08:36 PM	#5
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: Carburetor problems LOL it was a 2-question final exam. You took part A and I grabbed Part B __________________ '31 180A

02-08-2015, 08:56 PM	#6
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: Carburetor problems Sponsored Links (Register now to hide all advertisements) If the back up carb is pouring, it could be a stuck needle valve or a hole in the float. If the needle is stuck, usually tapping firmly but not hard enough to break it with a small hammer or the handle of a screwdriver on the upper housing above the needle valve . If its trash causing the needle to stick, this should help. The next thing would be to remove the bolt under the bottom that holds the halves of the housing together and remove and inspect the float .

02-13-2015, 10:47 PM	#7
31 Woody Senior Member Join Date: May 2013 Location: Lake Forest, California Posts: 239	Re: Carburetor problems I think we can rule out an intake leak. I replaced the gaskets, checked the recently milled intake/exhaust alignment which is dead on, checked for a leak at the wiper/line, and looked for cracks. Unfortunately, it still dies when idling down. __________________ Experience is a cruel teacher. It gives the exam first, then the lesson.