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Cylinder Head Numbering
Posted: Sun Oct 15, 2023 12:29 pm
by Bill N
Sorry if this has been covered before, its a quite trivial question but I haven't found the answer yet. The underside of the cylinder head on my 1961 Model 8 is marked "25 RE 61". Just to satisfy my curiosity, does anybody know what this means?
Regards,
Bill.
Re: Cylinder Head Numbering
Posted: Sat Oct 21, 2023 1:09 pm
by Red Gauntlet
Quality control marking, now possibly week 25, RE being the controller initials and 61 being the year date. I may stand corrected on this of course.
Re: Cylinder Head Numbering
Posted: Sat Oct 21, 2023 1:34 pm
by SPRIDDLER
Bill N wrote: ↑Sun Oct 15, 2023 12:29 pm
The underside of the cylinder head on my 1961 Model 8 is marked "25 RE 61".
Is that reference number cast in the head (i.e. raised up) or engraved/stamped into the metal?
Re: Cylinder Head Numbering
Posted: Sat Oct 21, 2023 4:17 pm
by Bill N
MVIMG_20231021_160921copy.jpg
Looks like it is stamped into the underside of the fins, under the exhaust port.