The Ford Barn

Karl · 05-02-2011, 05:22 AM

I recently purchased a "rebuilt" Zenith B carb. It has never run right and I have removed it and am about to rebuild it with a kit (Synders or Berts I can't recall which) .Comparing the jets in the carb with the jets in the kit there is a considerable difference . Specifically all the jets in the carb have the appropriate numbers on them but the orifices appear signifigantly larger than those of the jets in the kit. I assume that the jets in the carb are original but the orifices may have been enlarged by the rebuilder . I will install the kit and test drive. -I'm aware that in the past there have been issues with repro jet quality -Is this still an ongoing issue ?

Christoph · 05-02-2011, 08:22 AM

I rebuilt my carb with a Snyders Kit 3 month ago. Sadly no numbers on the new jets.
As i cant measure jets ( im used to mm-m-km) i had to trust in them.
It took a while to install them correct (relative to the venturi - old jets were on
different hight).
All worked out great.
The carb (a 1930 version on a 1929 Tudor) works from my point of view as it should.
Have fun Christoph

Dont forget to clean the passages with a paper-clip.

Flathead · 05-02-2011, 09:47 AM

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Maybe you have found the reason for that carb not working right??

05-02-2011, 05:22 AM	#1
Karl Senior Member Join Date: May 2010 Location: Manawatu, New Zealand Posts: 1,416	Carb Rebuild Kit I recently purchased a "rebuilt" Zenith B carb. It has never run right and I have removed it and am about to rebuild it with a kit (Synders or Berts I can't recall which) .Comparing the jets in the carb with the jets in the kit there is a considerable difference . Specifically all the jets in the carb have the appropriate numbers on them but the orifices appear signifigantly larger than those of the jets in the kit. I assume that the jets in the carb are original but the orifices may have been enlarged by the rebuilder . I will install the kit and test drive. -I'm aware that in the past there have been issues with repro jet quality -Is this still an ongoing issue ?

05-02-2011, 08:22 AM	#2
Christoph Senior Member Join Date: Oct 2010 Location: Frankfurt am Main in Germany Posts: 671	Re: Carb Rebuild Kit I rebuilt my carb with a Snyders Kit 3 month ago. Sadly no numbers on the new jets. As i cant measure jets ( im used to mm-m-km) i had to trust in them. It took a while to install them correct (relative to the venturi - old jets were on different hight). All worked out great. The carb (a 1930 version on a 1929 Tudor) works from my point of view as it should. Have fun Christoph Dont forget to clean the passages with a paper-clip.

05-02-2011, 09:47 AM	#3
Flathead Senior Member Join Date: May 2010 Location: Southern Maine Posts: 1,499	Re: Carb Rebuild Kit Sponsored Links (Register now to hide all advertisements) Maybe you have found the reason for that carb not working right??