|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
11-03-2013, 05:42 PM | #1 |
Member
Join Date: Jun 2012
Location: Finger Lakes District, NYS
Posts: 55
|
Model A or B parts?
My recently acquired 1929 Sport Coupe came with a B head, B water pump and B carburetor. Can you help me determine (from the attached photos) whether it contains a Model A or B distributor and timing cover?
The distributor cam appears to resemble that of the model B (flats blend with radius). The timing cover appears to be a replacement, but the hole for the timing pin is in the lower part of the flat, suggesting that it is the original model A configuration. I understand that mismatch of these parts such as combining a model A timing gear cover with a model B distributor may require that allowance be made in setting the advance during timing. I’ll greatly appreciate any guidance you can give me regarding model identification of these parts and the corresponding way the engine should be timed. Thanks - Bill |
11-03-2013, 05:49 PM | #2 |
Senior Member
Join Date: May 2010
Location: Southern California
Posts: 7,030
|
Re: Model A or B parts?
Your distributer is a Model A as determined by the fact that it has a manual spark advance. The Model B had an automatic advance. The Model B distributor cam is an improvement over the Model A but the improvement doesn't affect anything else. Your timing cover is a later replacement but the location of the timing pin at the bottom of the oval boss makes it correct for a Model A and correct for your distributor.
Charlie Stephens Last edited by Charlie Stephens; 11-03-2013 at 06:50 PM. |
Sponsored Links (Register now to hide all advertisements) |
|
11-03-2013, 09:02 PM | #3 |
Member
Join Date: Jun 2012
Location: Finger Lakes District, NYS
Posts: 55
|
Re: Model A or B parts?
Charlie -
Thanks for the helpful explanation. I'm climbing a steep learning curve these days, and enjoying it immensely due in large part to the generous help of knowledgeable people such as you. Bill |
11-03-2013, 10:20 PM | #4 |
Senior Member
|
Re: Model A or B parts?
Ask away!!!
__________________
What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II |
11-04-2013, 01:50 PM | #5 |
Senior Member
Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
Posts: 2,832
|
Re: Model A or B parts?
Most all of the reproduction distrubutor cams use the "B" profile.
__________________
1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
11-04-2013, 04:26 PM | #6 |
Registered User
Join Date: May 2010
Location: Sacramento Ca
Posts: 1,179
|
Re: Model A or B parts?
Sponsored Links (Register now to hide all advertisements)
a lot different looking than a Model A the condenser fits in the hole tom |
|
|
Sponsored Links (Register now to hide all advertisements) |
|