Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-24-2020, 03:01 PM   #1
Neil Mylar LakewoodCA
Senior Member
 
Neil Mylar LakewoodCA's Avatar
 
Join Date: May 2010
Location: Lakewood, CA
Posts: 1,338
Default Would a May29 motor have a 3 and 1/4 inch long ID pad?

Would a motor number A149XXXX, (May 1929) have a 2 and 3/4 inch long ID pad or a 3 and 1/4 inch long ID pad?
Thank you.
Neil Mylar LakewoodCA is offline   Reply With Quote
Old 02-24-2020, 08:43 PM   #2
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,371
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

Ford didn't make a lot of changes to the engine block during it's normal production run. Most of the blocks I've seen have a stamping boss the same width as the coolant port boss just below it. If there are variations, I'm not aware of them.

Replacement blocks were cast for many years after model A production ceased production and there is some consensus that Ford did not produce them. They are referred to as diamond blocks having a small diamond shaped casting mark behind the front right side of the timing chest. There might be variations among those.

Ford made a change to the valve chamber cover to lower the oil return tube location for May of 29 but it really didn't change the block. Changes are listed in the service bulletins as a general rule. Most changes were for oiling or cooling. Earlier in 29, the rear main cap was changed from a forging to a casting but that's about all I can remember.
rotorwrench is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-24-2020, 09:33 PM   #3
Bob C
Senior Member
 
Join Date: May 2010
Location: So Cal
Posts: 8,713
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

According to this link Ford went to the 3 1/4" pad in February 1, 1929.
http://www.plucks329s.org/pdf/studie...ND%20CODES.pdf


Bob
Bob C is offline   Reply With Quote
Old 02-25-2020, 08:59 AM   #4
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,371
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

That explains why I haven't seen any more narrow than the width of the coolant boss. I've not worked on any before Feb 29. Most of the changes were within the 1st 13-months of production.
rotorwrench is offline   Reply With Quote
Old 02-25-2020, 11:18 PM   #5
Chuck Sea/Tac
Senior Member
 
Chuck Sea/Tac's Avatar
 
Join Date: May 2010
Location: Between Seattle & Tacoma
Posts: 2,351
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

Great article by Steve. I didn’t know this. There always seems to be something new to learn about these cars!
Chuck Sea/Tac is offline   Reply With Quote
Old 02-26-2020, 12:11 AM   #6
Steve Plucker
BANNED
 
Join Date: May 2010
Location: Walla Walla, Washington USA
Posts: 6,066
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

Sponsored Links (Register now to hide all advertisements)
Thanks Chuck...It was fun to do!

Here is another you might like:

http://plucks329s.org/pdf/enginebloc...ESCRIPTION.pdf

Pluck
Steve Plucker is offline   Reply With Quote
Old 02-26-2020, 05:25 AM   #7
Neil Mylar LakewoodCA
Senior Member
 
Neil Mylar LakewoodCA's Avatar
 
Join Date: May 2010
Location: Lakewood, CA
Posts: 1,338
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

Thank you guys for answering my question and especially Steve, for your research and your great article.
Neil
Neil Mylar LakewoodCA is offline   Reply With Quote
Old 02-26-2020, 04:18 PM   #8
Brian T
Senior Member
 
Brian T's Avatar
 
Join Date: May 2010
Location: San Diego,Ca
Posts: 1,377
Default Re: Would a May29 motor have a 3 and 1/4 inch long ID pad?

I used Plucks engine block PDF article to determine that a cylinder block I have with a altered # stamp told me that is was somewhere between March and September 1930, just following from one change date to another, thanks Pluck.
__________________
Nothing can be made foolproof, ---- fools are ingenious bastards.
Brian T is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 12:44 AM.