Classic/Antique Car Repair/53 bel air

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Question
why does my car not start everytime without priming the carb. 6 volt system 235 motor single barrel carb.

Answer
I don't know anything about your bel air.  I am a Model A guy, but here is what I think.  It has to be the carb.  If you can't get it rebuilt, or rebuild it yourself, at least clean is good and make sure the automatic choke is working.  Clean the plugs and check the compression.  Both of those things can keep it from starting good.  Stay with it until it fires right off everytime as it should.  The six volt system is all you need.  If you change it to 12 volts, that is just a Band Aid.  Keep the 6 volts.  I assume the fuel pump is OK.  Find yourself a chevy car club and join it.  They will be able to help you a lot.  
Good luck
jack

Classic/Antique Car Repair

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jack bahm

Expertise

Only repair type questions on the 1928-1931 Ford Model A.

Experience

Owned one when I was 15 yrs old, and now have owned 5. Still own and play with 2 of them.

Organizations
Oakleaf region of MARC. Model A Restorers Club. I have put several Model A videos on the Oakleaf site that may be of help. Things like how to start the A, how to Time it, how to troubleshoot it.. Go to oakleafregion.org and you will find them. jack

Publications
"More than you need to know about cars." Just a small book for Car Nuts. Blurb.com "Model A Ford Tips and Hints" Blurb.com 2010 Many Model A movies that can be found on youtube.com/jackbahm

Education/Credentials
BSME LSU, 1958, Masters of automotive engineering from the Chrysler Institute of engineering, 1960, MBA Mich State, 1976. Worked as an engineer at Chrysler from 1958 to the end of 1991.

Awards and Honors
Two patents while working in auto industry.

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