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Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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Old 10-13-2009, 09:23 PM   #1 (permalink)
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Triumph Engine Numbers Help!!!!!!!!

Hi everyone, I have recently got hold of a triumph twin engine and dont really know what I have. My experience with Triumphs has basically been installing sparx electronic ignitions on T120R motors. Two of them to be exact. The engine that I have now has the engine numbers TR6 DU14107. I have done a little research and believe it to be a 1965 model but am not sure. Is this engine a 650. Would it be a Tiger, Trophy or Bonneville. What is the difference between the TR6 & T120R. I am needing to get some parts for this engine and would like to know what I have before I begin ordering. All that I have is the engine and I will be installing an electronic ignition on this item and placing it in a custom frame. Can parts from different engines be innerchanged on some models. I am also a little confused about unit and pre unit. Thanks in advance and any help and advice would be greatly appreciated.
Eric (excalibrator)
P.S. My knowledge of electronic ignitions for Triumphs came from this site. Thanks to all!!!!!!!!!!!!!!!!!!
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Old 10-13-2009, 09:55 PM   #2 (permalink)
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i show early 1965 tr6 1 carb t120r 2 carbs
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Old 10-14-2009, 12:34 AM   #3 (permalink)
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Almost any Triumph 650 parts will interchange between 65 and 70.

TR6 & T120 (Bonny) swapping stuff is a no-brainer.
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Old 10-14-2009, 05:15 AM   #4 (permalink)
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Hi Eric,
It's a 1965 Trophy 650cc.
Differences from the T120R (Bonneville) are :-
Cylinder Head, (T120R has twin carbs)
Camshafts.
Pistons (T120 has higher compression ratio)
No tachometer drive. (although you could fit one)

'Unit construction' means that the engine and gears are in one unit, ie they are contained in the same casing. 'Pre-unit' literally means 'before-unit construction' The gearbox is a totally seperate item from the engine.
Andy.
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Old 10-14-2009, 01:37 PM   #5 (permalink)
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engine numbers

Quote:
Originally Posted by Slippery Sam View Post
Hi Eric,
It's a 1965 Trophy 650cc.
Differences from the T120R (Bonneville) are :-
Cylinder Head, (T120R has twin carbs)
Camshafts.
Pistons (T120 has higher compression ratio)
No tachometer drive. (although you could fit one)

'Unit construction' means that the engine and gears are in one unit, ie they are contained in the same casing. 'Pre-unit' literally means 'before-unit construction' The gearbox is a totally seperate item from the engine.
Andy.
Thanks Andy, The info you have provided is greatly appreciated. Best wishes, Excalibrator
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