Author Topic: M & F Crankcase Stamping  (Read 1252 times)

Offline NickSR

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M & F Crankcase Stamping
« on: 27.08. 2011 22:01 »
Hi Everyone

M & F stamped on Super Rocket crankcase, whats the meaning.

Thanks
Nick
1962 Super Rocket
1955 BSA C11G
1998 BMW R850R

Online RichardL

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Re: M & F Crankcase Stamping
« Reply #1 on: 28.08. 2011 00:42 »
Well, there is this: http://www.mafcobell.co.uk/   (a.k.a. M&F Components). They've been around since 1946, so maybe they changed from motorcycle service to parts along the way.

Richard L.
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Offline MG

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Re: M & F Crankcase Stamping
« Reply #2 on: 28.08. 2011 08:17 »
Malice and Frustration???
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

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Offline a10gf

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Re: M & F Crankcase Stamping
« Reply #3 on: 28.08. 2011 09:53 »
No idea about M&F, but am admiring the engine condition, looks like new straight from the factory!

Not to hijack your topic but started looking for stamps, is this (see pic) a production date inside the primary?

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Online muskrat

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Re: M & F Crankcase Stamping
« Reply #4 on: 28.08. 2011 11:18 »
I'd say so e. My '51 has a stamp in the same spot 17-8-50 and an X where the MF in question is. My newly acquired '64 A65 has CF stamped on the inner timing cover. Would guess that they are inspection signatures.
Cheers
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Offline trevinoz

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Re: M & F Crankcase Stamping
« Reply #5 on: 28.08. 2011 21:37 »
   Nick,
                   I suspect that they are inspection marks.

     Trev.

Online RichardL

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Re: M & F Crankcase Stamping
« Reply #6 on: 28.08. 2011 21:50 »
But Trev, if they were inspection marks, wouldn't some of our bikes have identical or similar markings in the same place? Mine doesn't. If they were for inspection, for example, for "Machining and Finish" of the cases, you'd think there would be identical. If they were for "Mike and Frank", you'd think there was a "Dickie and Tom".

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline jfligg

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Re: M & F Crankcase Stamping
« Reply #7 on: 29.08. 2011 01:32 »
Hi Fellas
  I have 2 1960 engine cases 1 stamped M and 1 stamped F.  Nothing on any other cases.  I haven't cchecked the plunger cases for dates.  Ill do that tomorrow.  Jeff

Online bsa-bill

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Re: M & F Crankcase Stamping
« Reply #8 on: 29.08. 2011 08:41 »
M = made on Monday
F= made onFriday

M F  started Monday morning  finished Friday afternoon (could be problem bikes these ones)
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

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Re: M & F Crankcase Stamping
« Reply #9 on: 29.08. 2011 10:43 »
Bill I got one built on Sunday by the cleaners. *eek*





'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
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Offline MG

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Re: M & F Crankcase Stamping
« Reply #10 on: 29.08. 2011 14:57 »
The alloy parts on my Shooting Star are all stamped "SS" and with a funny symbol (The mechanic formerly known as Prince?)  *dunno*






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1956 A10 Golden Flash
1961 Matchless G12 CSR

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Offline jfligg

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Re: M & F Crankcase Stamping
« Reply #11 on: 29.08. 2011 21:19 »
Hi MG
  I have a friend who was a biker from the 60s.  He marked all of his pieces with his name, he used this as a thief prevention.  I have a named rocker box.  Jeff

Offline trevinoz

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Re: M & F Crankcase Stamping
« Reply #12 on: 29.08. 2011 22:32 »
Richard L,
                    Swinging arm crankcases all seem to have "F'" stamped on the camshaft tunnel until about 1962 when a circular mark was used.
I have seen some with no marks, possibly polished or ground off, and some with names etc.
   Trev.

Offline MG

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Re: M & F Crankcase Stamping
« Reply #13 on: 30.08. 2011 07:24 »
Quote
I have a named rocker box.  Jeff

What's its name then? Rocky?  *lol*
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria