The Ford Barn

31Abone · 10-18-2021, 08:30 PM

have A motor serial RF 3317 what is this late 30's motor ? see pics

40-A Twins · 10-18-2021, 08:57 PM

Look for this diamond casting mark above the timing cover. "Diamond" blocks were manufactured after Model A production ended for replacement motors and industrial use. If your motor has this diamond mark, the casting date code begins with month represented by a letter (J= 10th letter in alphabet), then day and year. This one was cast October 21, 1936. These motors typically have a few improvements like "B" cam and exhaust valve seat inserts.

katy · 10-18-2021, 09:09 PM

I like that crankcase breather cap.

Bob C · 10-18-2021, 09:42 PM

Some info at this link, not sure how accurate it is.
https://www.fordbarn.com/forum/showt...=richmond+Ford

40-A Twins · 10-19-2021, 06:33 PM

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Thanks for the link above. The serial number on my diamond block has prefix LBI which indicates it was manufactured at Long Beach factory

10-18-2021, 09:09 PM	#3
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,043	Re: Mdl. A motor serial number ? I like that crankcase breather cap. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

10-18-2021, 09:42 PM	#4
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,749	Re: Mdl. A motor serial number ? Some info at this link, not sure how accurate it is. https://www.fordbarn.com/forum/showt...=richmond+Ford