The Ford Barn

Fhane · 02-05-2020, 07:09 PM

Two things may help

Google loping engine.

Run a test with a vacuum gauge if possible.

Purdy Swoft · 02-05-2020, 09:19 PM

I always replace the adjusting needle $4.95 and the needle adjustment housing $8.00 on all of my Zenith one and two , plus Tillotson model X and FX carburetors . these parts are listed on page 64 of Bratton's Catalog . These are the parts that connect to the choke rod and adjusts rich and lean for the GAV , gas adjusting valve on the carburetor . Because of regular adjustment the needle can wear and cause rich operation .

marty in Ohio · 02-06-2020, 08:00 PM

Rebuilt the carb. Now back in business

Gene F · 02-29-2020, 07:42 PM

Yes, and check the carb is not loose. Don't overtighten it! Some times the simplest things will get ya.,

02-05-2020, 07:09 PM	#21
Fhane Senior Member Join Date: May 2010 Location: Stuart Florida Posts: 147	Re: loping engine? Two things may help Google loping engine. Run a test with a vacuum gauge if possible.

02-05-2020, 09:19 PM	#22
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: loping engine? I always replace the adjusting needle $4.95 and the needle adjustment housing $8.00 on all of my Zenith one and two , plus Tillotson model X and FX carburetors . these parts are listed on page 64 of Bratton's Catalog . These are the parts that connect to the choke rod and adjusts rich and lean for the GAV , gas adjusting valve on the carburetor . Because of regular adjustment the needle can wear and cause rich operation .

02-06-2020, 08:00 PM	#23
marty in Ohio Senior Member Join Date: May 2011 Location: Elyria, Ohio Posts: 755	Re: loping engine? Rebuilt the carb. Now back in business

02-29-2020, 07:42 PM	#24
Gene F Senior Member Join Date: Mar 2012 Location: Ohio Posts: 1,958	Re: loping engine? Yes, and check the carb is not loose. Don't overtighten it! Some times the simplest things will get ya.,