The Ford Barn

fordfun · 10-30-2013, 06:48 PM

The 1929 Sport Coupe I recently acquired has a B head (on a model A block) and B carburetor. I recently timed it using Les Andrew's procedure. The car seems to run OK. However, I have no basis for comparison as this is the only Model A I've ever owned.

Is the timing setup different for a car with a higher compression head and a B carb.?

Thanks for any guidance you can give me here.

Bob C · 10-30-2013, 07:17 PM

When you say B head do you mean a Model A head with a B on it
or a Model B head with the three bolt water pump?

Bob

colin1928 · 10-30-2013, 07:19 PM

Hi With Hi Compression heads I have set the timing the same to start with and adjusted as necessary normally the higher the compression the less ignition advance due to faster flame travel

fordfun · 10-30-2013, 07:44 PM

The head has a C on it which I've come to understand is referred to as a B head.

Bob C · 10-30-2013, 08:27 PM

That head does not have much more compression than a stock A head.
See the link to Vince's site http://www.fordgarage.com/pages/ABcy...comparison.htm

Bob

fordfun · 10-31-2013, 06:59 AM

Sponsored Links (Register now to hide all advertisements)

Sounds like the car should be timed the same as one with a stock engine, and perhaps driven with slightly less spark advance.

Thanks gents.

10-30-2013, 06:48 PM	#1
fordfun Member Join Date: Jun 2012 Location: Finger Lakes District, NYS Posts: 55	Timing for B Head and Carb. The 1929 Sport Coupe I recently acquired has a B head (on a model A block) and B carburetor. I recently timed it using Les Andrew's procedure. The car seems to run OK. However, I have no basis for comparison as this is the only Model A I've ever owned. Is the timing setup different for a car with a higher compression head and a B carb.? Thanks for any guidance you can give me here.

10-30-2013, 07:17 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 9,360	Re: Timing for B Head and Carb. When you say B head do you mean a Model A head with a B on it or a Model B head with the three bolt water pump? Bob

10-30-2013, 07:19 PM	#3
colin1928 Senior Member Join Date: Mar 2013 Location: Australa Melbourne Posts: 878	Re: Timing for B Head and Carb. Hi With Hi Compression heads I have set the timing the same to start with and adjusted as necessary normally the higher the compression the less ignition advance due to faster flame travel

10-30-2013, 07:44 PM	#4
fordfun Member Join Date: Jun 2012 Location: Finger Lakes District, NYS Posts: 55	Re: Timing for B Head and Carb. The head has a C on it which I've come to understand is referred to as a B head.

10-30-2013, 08:27 PM	#5
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 9,360	Re: Timing for B Head and Carb. That head does not have much more compression than a stock A head. See the link to Vince's site http://www.fordgarage.com/pages/ABcy...comparison.htm Bob

10-31-2013, 06:59 AM	#6
fordfun Member Join Date: Jun 2012 Location: Finger Lakes District, NYS Posts: 55	Re: Timing for B Head and Carb. Sponsored Links (Register now to hide all advertisements) Sounds like the car should be timed the same as one with a stock engine, and perhaps driven with slightly less spark advance. Thanks gents.