1939 RH 'R' stamping

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Vincent.vanGinneke
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Re: 1939 RH 'R' stamping

Postby Vincent.vanGinneke » Tue May 21, 2019 11:17 am

Or maybe it's just the personal O.K. stamp from the workshop foreman ?
My engine comes from a 1940 VH

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adrie.degraaff
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Re: 1939 RH 'R' stamping

Postby adrie.degraaff » Tue May 21, 2019 11:46 am

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.

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Richard Kal
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Re: 1939 RH 'R' stamping

Postby Richard Kal » Tue May 21, 2019 12:27 pm

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.

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alan.moore
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Re: 1939 RH 'R' stamping

Postby alan.moore » Tue May 21, 2019 2:04 pm

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.

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Alan
1939 VH Redhunter;1942 RN WNG;1951 Triumph 6T Thunderbird;1970 BSA B175 Bantam;1986 Yamaha SRX600 single
http://cloggymoore.wix.com/triumph-pre-unit-6t

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alan.moore
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Re: 1939 RH 'R' stamping

Postby alan.moore » Tue May 21, 2019 2:10 pm

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

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Alan
1939 VH Redhunter;1942 RN WNG;1951 Triumph 6T Thunderbird;1970 BSA B175 Bantam;1986 Yamaha SRX600 single
http://cloggymoore.wix.com/triumph-pre-unit-6t

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Re: 1939 RH 'R' stamping

Postby nevhunter » Wed May 22, 2019 3:46 am

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

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Re: 1939 RH 'R' stamping

Postby chris.vredenbregt » Wed May 22, 2019 7:23 am

What about the "r" of repaired maybe these engines were overhoaled?
black ariel model G special 1930 500 OHV

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Re: 1939 RH 'R' stamping

Postby Brian Petheram » Wed May 22, 2019 12:05 pm

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.

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Re: 1939 RH 'R' stamping

Postby PeterW » Thu May 23, 2019 6:54 pm

I'm on holiday but pretty sure my 1950 NH350 has an H between the pushrod tubes.

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Re: 1939 RH 'R' stamping

Postby will_curry » Thu May 23, 2019 7:58 pm

1939 500 Crankcases with rollers and steel flywheels and the little 'R'.
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