1945 + camplate??? - Triumph Forum: Triumph Rat Motorcycle Forums

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post #1 of 6 (permalink) Old 11-08-2012, 07:20 PM Thread Starter
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Thumbs up 1945 + camplate???

Well I'm still trying to identify which camplate is which, of all the brains of europe and austraila I'm still having great dificulty in finding which one is which. I'm told to a 57-0500, but which one of the four is this particular one, this they (people in the know) do not say.
So I am sure that there is someone at RAT.NET that is able to provide the correct answers PLEASE "HELP"
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post #2 of 6 (permalink) Old 11-08-2012, 07:25 PM Thread Starter
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Sorry I didn't mention - the bike is a 1949 Speedtwin 500cc.
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post #3 of 6 (permalink) Old 11-08-2012, 08:25 PM
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I'd say number 2 is a photographic mistake.The negative was upside down,so it's shown in mirror image;it would actually be the same camplate as number 1.

You can take your pick.They would all work.

The neutral notch between 2nd and 3rd does make assembly and indexing easy.The quadrant looks central in that position,so indexing is simple.You would never use that neutral position during normal riding.You would shift 2nd to 3rd,with no 1/2-shift.

Neutral between 4th and 3rd can be some use,if you like "angel gear"/ "Georgia overdrive" going downhill.It actually can be useful to pinpoint noises/vibrations,whether they are frame related or engine related.
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post #4 of 6 (permalink) Old 11-08-2012, 08:49 PM Thread Starter
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Thanks very much for that Mt Pete,
But as far as the reversed neg on No2, I actuualy took the pic from a camplate that was sent to me through a dealer. I ca vouch that the indent is in the left side and I think that would put it between 3rd & 4th gear.
Iv'e been working around bikes and cars for over some 60 years but there is always something or somebody that we have to rely on for what it is we do no know. And I admit that I have never in all my time have had the need to pull a gearbox apart, much to my dismay, an old dog will have to learn "New/OLD" tricks.
With the expertice of persons like yourself, I will provail. I thank you again and should you be able to offer any futher tips on assembly I would be very gratefull.

Kind regards
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post #5 of 6 (permalink) Old 11-08-2012, 09:07 PM Thread Starter
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One further point Mr Pete,
Would the camplate that fits to to 500cc bike be the same as that in the earlier model 650cc?
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post #6 of 6 (permalink) Old 11-10-2012, 07:20 PM
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You can use any 650 camplate up to 1970.Avoid the'71-'72 leaf spring camplate,if possible.
The one with only 1 neutral notch came out about '69,and you may need to use the correct plunger to suit it.It's a good camplate.The thread on the plungers never changed.

You can sometimes shim behind the camplate to bring it closer to the selector forks.
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