Triumphrat

oz-brit

Nearly fell off my perch when given the price of the Triumph special tool locking pins for the camshaft backlash gear. Over 40 pounds UK is something of a bad joke. Does anyone here have the dimensions so that I can have an engineer friend make them up?

bonnevillebilly

I did a little search for you.
I found this but, there is a picture out there some where
that shows all the dimensions you need to make your own.

click
good luck
Bill

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2001 Bonnie
1976 Bonnie

BassNote

Here you go.

The diameters are:
.223in / 5.66mm
.152in / 3.86mm

...and here are some pics
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Good luck!

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To win without risk is to triumph without glory.

ohiorider

Bassnote - very nice! Am I looking at the business end of the 'official' Triumph tool in the micrometer?

Bob

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2003 T100 (790cc) Lucifer Org and Silv: 122/42 jets, TORs, 17T, UNI filter, no AI, Polaris bellmouth, Metzeler ME880 tires, Progressive 440 shocks (105/150 springs),11-1126 fork springs, gaiters, MotoTwin low bars, 6024 lamp, htd grips, 12v outlet.

merlin

I believe the kit from T also includes a (cheap) 'spanner' in case you disassemble the gear and need to 'wind it up' again during reassembly. You'd also need it should the pin slip or be accidentially removed. So you're getting two pins and a cheap spanner.
However, you normally don't disassemble the gear and the Triumph pins aren't exactly precision instruments. The two gears still manage to twist a tad. Upon reinstalling the cam one uses the pin to lever, the two gears into exact alienment and then put the thing in place and you're done.
My point is anything you fabricate that comes close to the dimensions supplied by Bassnote will do you as fine as the T stuff, which, despite rumours to the contrary, and the price, are not gold plated.
One definate word of caution - any of these tools can be dropped into the engine. I recomment taping a long 'flag' of duct tape onto the tool.

ohiorider

Merlin - thanks for your cautionary note about the duct tape flag.

Bob

__________________
2003 T100 (790cc) Lucifer Org and Silv: 122/42 jets, TORs, 17T, UNI filter, no AI, Polaris bellmouth, Metzeler ME880 tires, Progressive 440 shocks (105/150 springs),11-1126 fork springs, gaiters, MotoTwin low bars, 6024 lamp, htd grips, 12v outlet.

BassNote

Yes, it's the official tool. I would have made my own if I had the means to do so.

Merlin is absolutely correct, anything that comes close to the Triumph tool's dimensions should work fine and if you don't disassemble the gear you don't need the spanner.

It should be ridiculously easy to make by anyone with the right equipment. It's just a metal rod with a thinner bit at the end. The thinner bit can be any length, it will just stick out the back of the gear. If I'm remembering correctly, the Triumph tool's end is flush with the back of the gear when inserted. But I don't see any reason why it has to be a particular length other than to save metal.

The primary benefit of the right angle on the tool is to keep it from falling into the engine. I saw somewhere else where someone made a couple of very small pins, which would work fine but might fall somewhere they don't need to be. Functional but risky. Duct tape is a great idea for that.

An enterprising person could make up a batch of these and offer them for half of what Triumph sells them for and still make a profit. They would cost next to nothing to make, although I suppose there isn't a huge demand for Triumph tools.

Good luck all and have a good one.

__________________
To win without risk is to triumph without glory.

oz-brit

Thanks to all involved for this info. If this works I may start selling them