Board index Flathead Power-Technical Questions, Answers, and Suggestions Big Twin Flatties Cylinder ID/date help please!

Cylinder ID/date help please!

Moderators: Curt!, Pa

Post Wed Feb 04, 2009 1:29 am

Posts: 217
Location: Palo Alto, CA
Hi everyone,

I am curious about the date code (?) on this cylinder from one of the projects:




It has 26-5 cast into the base flange - I was wondering if this is a date code (1945?) or just a batch number?
Are big twin flathead cylinders dated in this way other than the switch from 13 to 11 fins?

I apologize in advance - my Palmer's is in transit...

Post Wed Feb 04, 2009 6:03 am

Posts: 975
Location: Markt Einersheim, Germany

Would that not be

May 26th?

I am probably wrong.....and I don't have Palmers book here at home.........I left it at work.


Post Wed Feb 04, 2009 11:35 am

Posts: 607
Location: Menomonie, Wisconsin, USA
Somewhere there will be a letter representing the month. Might be around the corner of the base. 26 is date and 5 is 1945.


Post Wed Feb 04, 2009 11:00 pm

Posts: 217
Location: Palo Alto, CA
Thanks guys! I'll see if I can find a letter there also.

I take it the cylinders were matched by roughly similar dates, such as same year etc? I have seen this to be the case on some of the K models I have looked closely at.

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