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Same old question, engine number

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Same old question, engine number

Post  andy-s on Wed Nov 19, 2014 8:14 pm

Hi all, can anyone help with this engine ID? its-- 666A 25593 Ive looked but cant find 666A but hope its 8e .Thanks in advance Andy
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Engine Number

Post  MoscowFlyer on Wed Nov 19, 2014 10:13 pm

Hi Andy, 666A is an 8E, it's from a 1953-58 Dot TDHX4. Mike
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Same old question, engine number

Post  andy-s on Thu Nov 20, 2014 7:10 am

Thanks mike
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TDHX4

Post  piston 197 on Thu Nov 20, 2014 7:26 am

And being from a TDHX4 it should have a 4 speed gearbox ( hence the 4 after the model code, can't quite recall all of the letters T is Trials, D is direct lighting, H is lighting kit ? think the X is swing arm model, but all of this is from memory, so may be amiss slightly ?
JH
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Same old question, engine number

Post  andy-s on Thu Nov 20, 2014 1:22 pm

Thanks for that John. It is to go into a James trials lookalike as a replacement for a 6e 3 speed. I have got a 4 speed box to go with it but the gears are all a bit worn so will need sorting. do you know the correct ratios? Also if anyone has a clutch for a 8e 4speed i would be interested.
Andy
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trials ratios

Post  piston 197 on Thu Nov 20, 2014 2:46 pm

The 4 speed trials box is recognised by a number on the top starting with a "V", the standard box has an "S" at the beginning, this still does not tell you actually what gears are fitted in side, but a quick check is select first gear and turn the clutch shaft, the sprocket will turn at approx. ratio of 3 to 1 on the wide trials box, on the standard it will be approx. 2.4 times.
Exact overall ratios are dictated by engine sprocket,clutch drum , gear ratio , gearbox sprocket and final drive sprocket
Rather than a 4 speed clutch for a 7/8E Nametab engineering do a conversion to fit a 9E type clutch to a 4 speed albion 8E gearbox, still using the clutch sprocket from the 8E and a spacer to go between inner and outer clutch covers to accept the wider clutch. This solves all of the problems associated with a corked clutch in trials. Nametab can be contacted on 01527 522266
well worth the investment
JH
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Re: Same old question, engine number

Post  Jack Clegg on Fri Nov 21, 2014 10:38 am

I have a 4 speed clutch centre, plus other bits to the assembly, if required. TTFN Jack
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Re: Same old question, engine number

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