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Re: 1939 RH 'R' stamping

Posted: Tue May 21, 2019 11:17 am
by Vincent.vanGinneke
Or maybe it's just the personal O.K. stamp from the workshop foreman ?
My engine comes from a 1940 VH

Re: 1939 RH 'R' stamping

Posted: Tue May 21, 2019 11:46 am
by adrie.degraaff
Vincent.vanGinneke wrote:Or maybe it's just the personal O.K. stamp from the workshop foreman ?

Or the guy who did the work to it so if not good they could sack him, you see the same on HS frames from the man who has taking the luggs off.

Re: 1939 RH 'R' stamping

Posted: Tue May 21, 2019 12:27 pm
by Richard Kal
You might be onto it Vincent,
A friend who worked in the engine assembly area at BSA told me that the builders all had their individual stampings for the bottom ends.

His trademark was 4 small centre punch marks in the shape of a diamond, on the crankcase of BSA singles.

Richard.

Re: 1939 RH 'R' stamping

Posted: Tue May 21, 2019 2:04 pm
by alan.moore
Keep the ideas coming chaps.
It would be interesting if anyone with say a 1938 to 1940 VH could have a look and see if you have such a stamping and report back if you have.

If it is an individual assemblers stamping then there should be other letters for different people? or maybe it was just one chap who did it to engines he assembled.

Cheers
Alan

Re: 1939 RH 'R' stamping

Posted: Tue May 21, 2019 2:10 pm
by alan.moore
nevhunter wrote:Funny they have the same part number. The VA, VB has an extra hole for oil to drain from the tappet area. VA VB VG VH of the period all share the same engine prefix. Nev


Well the parts book does say specify if OHV or SV when ordering so if you wanted one for a SV you got the extra hole....good info Nev

Cheers
Alan

Re: 1939 RH 'R' stamping

Posted: Wed May 22, 2019 3:46 am
by nevhunter
I have no idea whatsoever about the "R" on the Ariels. cases.. Military Matchless got extra numbers etc stamped on them every time something was done to them. Interestingly the other day I found a "small" regulator with "LEAD ACID" clearly stamped on it's base. As a mere kid I worked on a Daimler of about 1916 vintage and the crankshaft was drawfiled all over and stamped with the worker's name . A magnificent vehicle with the LARGE gearlever and hand brake lever outside over the running boards Nev

Re: 1939 RH 'R' stamping

Posted: Wed May 22, 2019 7:23 am
by chris.vredenbregt
What about the "r" of repaired maybe these engines were overhoaled?

Re: 1939 RH 'R' stamping

Posted: Wed May 22, 2019 12:05 pm
by Brian Petheram
alan.moore wrote:It would be interesting if anyone with say a 1938 to 1940 VH could have a look and see if you have such a stamping

I have an October 1938 (1939 model) VH which is disassembled enough to confirm there is no trace of an R stamping on any of those locations on my bike. Must be either an individual worker or code for replacement, rebuilt, etc.

Re: 1939 RH 'R' stamping

Posted: Thu May 23, 2019 6:54 pm
by PeterW
I'm on holiday but pretty sure my 1950 NH350 has an H between the pushrod tubes.

Re: 1939 RH 'R' stamping

Posted: Thu May 23, 2019 7:58 pm
by will_curry
1939 500 Crankcases with rollers and steel flywheels and the little 'R'.