The Ford Barn - A Cam - B Cam Identification

The Ford Barn (https://www.fordbarn.com/forum/index.php)

- Model A (1928-31) (https://www.fordbarn.com/forum/forumdisplay.php?f=3)

- - A Cam - B Cam Identification (https://www.fordbarn.com/forum/showthread.php?t=45253)

CA Victoria

08-18-2011 07:24 PM

A Cam - B Cam Identification

How do I tell the difference between an A and B cam?

Roadster62

08-18-2011 07:26 PM

Re: A Cam - B Cam Identification

B has the extra lobe to run the fuel pump.

Tom Wesenberg

08-18-2011 11:00 PM

Re: A Cam - B Cam Identification

http://i118.photobucket.com/albums/o...rCamsAandB.jpg

And if you are asking about the distributor cam, here is a picture showing the difference. The B cam has about 10* more dwell when both are set at .020".

CA Victoria

08-18-2011 11:20 PM

Re: A Cam - B Cam Identification

Good information, thank you!

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