This is a nice reporduction of the Norton Magdyno (iron) platform, that was fitted to some Norton 16H WD models - but should also fit other pre-1948 SV and OHV models.
Price is Each.
It should be noted that you are unlikely to see this type of Norton MagDyno platform listed in any of the original Norton Spare Parts Lists - both pre-war and post-war Norton single cylinder spare parts list show an aluminium platform - shown pre-war as being part number 3711, with the 1948 onwards type being C2/117 (see accompanyning photos).
Even the original1937/39 Norton 16H WD Spare Parts List (we sell a facsimile - Item 0234) shows the alloy platform type 3711!, although I suspect that was because this spare parts list was printed approx 1938, before the start of WWII, when they were preparing for war and aluminium was still available.
However, this type of (cast iron?) magneto platform was often to be found at autojumbles many years ago - and were always associated wtih WD 16H Norton's, but like so many WD 16H parts - where surplus items were readily available a few years ago: they are now scarce - and have also been used to fit onto civilian single cylinder models. I cannot be sure - but I suspect that although early WD Nortons (i.e. those manufactured pre 1940) were look to have been fitted with the civilian alloy type magneto mount - once the war was in progress and aluminium was scarce - they switched over to this slightly heavier, but readily available cast iron/steel type. That being the case though - mount positions should be same as other pre-war Norton OHV/SV models of the same period, up to 1947.
The same should be true of this reproduction magneto mount platform - which looks to be a nice quality cast iron/steel casting, and just as per the original Norton design, and all machined to take an original Lucas MagDyno unit. Given that it would have been taken from a genuine 16H platform - I would expect it would fit most Norton SV/OHV models from the 1930's through to 1947.
Special Note - not the same as C2/117 (1948 onwards) magneto platforms:
Note: the Norton OHV/SV range had a major re-design in 1948, and although not widely known - the positioning of the magneto platform mount holes changed slightly. The 1948 onwards OHV/SV alloy type magneto platform was listed as part number C2/117 - And Item 1198 we offer here IS NOT THAT TYPE, and has different offsets (I have seeen this type of magneto platform referred to as that part number elsewhere in the past- and believe that is wrong)
To prove that - see the accompanyning photographs, where I show this WD type (Item 1198) alongside a genuine 1948 onwards C2/117 mag platform from my own collection. As you can see the magneto hole vs inner engine plate face offsets are clearly different! (if you require more detail on the dimensions to check, please email us on sales@racingvincent.co.uk .
FYI - as a bit of information on Norton parts numbering post war - the 'C2' prefix on many Norton parts from 1948 onwards through to the mid 1950's normally indicates there was redesign of the part for the 1948 engine design, postwar parts specifically for the 1938/47 engine design often being prefixed 'B2' - logic dictates therefore the 48 design onwards was different). Therefore - I would suspect that this mag platform type will not fit 1948 onwards OHV/SV models. However, if unsure - you can email us on sales@racingvincent.co.uk for more information on dimensions and offsets.
Although I suspect this item was made offshore, it is supplied to us from a reputable UK supplier and looks good value for the price - as magneto platoforms for Norton OHV/SV singles are now very difficult to source.
Note we also sell the magneto mount screws for OHV/SV mount platforms - our item 0712 as well as the special timing side lock nut plate fitted at the base of all OHV/SV magneto platform mounts - Item 1037.
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