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And yet another T120...

Re: And yet another T120...

Postby Triton Thrasher » Sun May 14, 2017 6:00 am

trident sam wrote:
Triton Thrasher wrote:Your wiring improvements look like you now have at least some chance of reliability.


Yeah, that bike was so unreliable it was ridden to Spain and back with me on my Trident



If it makes you buggers feel any better, I had to fix my own shoddy wiring today.

Lack of charging traced to the AC leads emerging from the Alton alternator. I seem to have tried to push bullets into a socket wherein an old bullet already resided. And it looks like the battery is scrap.
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Re: And yet another T120...

Postby Fast Eddie » Sun May 14, 2017 6:47 am

hope you found it at home and not at the roadside in the wilderness??
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Re: And yet another T120...

Postby Triton Thrasher » Sun May 14, 2017 8:00 am

Fast Eddie wrote:hope you found it at home and not at the roadside in the wilderness??



It had been intermittent in various locations. You tend not to fret about charging, with magneto ignition. Then yesterday and today it ceased charging for long enough for me to find zero AC voltage reaching the regulator, find the loose connection, fix it and get the voltage back.
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Re: And yet another T120...

Postby chasbmw » Sun May 14, 2017 8:18 am

I have a 69, in very original condition, just been admiring the original pancake air filters, how is it best to stop them vibrating loose, locktite on the threads or lockwiring them together?

Don't want to replace with patterns

Cause or paper filters?
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Re: And yet another T120...

Postby grandpaul » Sun May 14, 2017 9:18 am

One bit of lockwire between the filters will cure it.
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Re: And yet another T120...

Postby Triton Thrasher » Sun May 14, 2017 11:28 am

Or a discreet zip tie.
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Re: And yet another T120...

Postby Fast Eddie » Sun May 14, 2017 1:43 pm

Just for Sam:
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Good idea on the lock wire idea, think I'll give that a go.
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Re: And yet another T120...

Postby trident sam » Mon May 15, 2017 12:54 am

That's more like it !!

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Re: And yet another T120...

Postby daveh » Thu May 18, 2017 5:14 pm

Hi Fast Eddie - I just checked in to the forum this evening having been absent for a while, to see your very tidy, clean Bonnie! Congrats!

What's the vibration like? Have you given it the berries yet?!!

Mine is down to the last nut and bolt, such was the state it was in. When things start to happen, I'll post a few pics. It has a belt drive conversion that runs in oil and a SRM clutch. Since you mentioned a possible belt drive, I can post some pics of mine.

I am hoping mine will look somewhat like yours when I've finished but with the Aubergine and Alaskan White paint scheme (which has grown on me). And I'm keeping the TLS front brake and Concentrics even though they are not original to that year. And I've got one of those reed valve breathers. I had one on the Commando and have one on my 450 Duke. They work.

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Re: And yet another T120...

Postby Fast Eddie » Fri May 19, 2017 1:33 am

Well, I haven't given it full beans yet, but have opened it up a bit.
The tacho seems to stop at 3500rpm though (gonna send both clocks to Gaggs for a refurb me thinks), so I can only guess, but would say I've had it to 5500-6000rpm.
It pulls very well and sounds lovely and crisp. Quite addictive!
I am very surprised with how smooth it is to be honest.
Next job is that it feels very under geared to me, so will look at options on this front.
Yes please, some pics of your belt drive would be great, I'm guessing it's a Tony Haywood job?
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Re: And yet another T120...

Postby B+Bogus » Fri May 19, 2017 4:38 am

Hi Eddie,

Late to the party as usual ;)

Great looking bike, and I agree the '68 is the best!

I note that you rate the smoothness. Mine was also the smoothest running Triumph twin I'd ever owned until I put a '68 flywheel on my T140.
I then sold my '68 due to relocating. I know where the '68 resides, and still wonder if I should 'make that call'...

My own view, for what it's worth... leave the f***ing thing alone!
You're in grave danger of changing it into something that is no longer as nice as a '68 Bonnie ;)
Belt drive sounds good though, and an SRM (or similar) clutch pressure plate would be a good upgrade.

When I built my Combat (sold the day I visited you!), I liked the fact that it was a 'showroom' bike, and it was great to know that (apart from sensible mods) a stock bike could be so good.

But like they've already said... it's your bike :)
Cheers,

Andy

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1975 Triumph T160
1976 Triumph T140
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Re: And yet another T120...

Postby daveh » Fri May 19, 2017 5:07 am

Yes, looks like it is a Tony Haywood kit. That's the only pic I have at the moment. I can take more detailed pics of the clutch if you need. I inherited this set up so I don't know if it is a straight bolt-on job. I would guess it is.

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Re: And yet another T120...

Postby Triton Thrasher » Fri May 19, 2017 9:56 am

Tony Hayward does sell red belts with trapezoid teeth.

Don't run it tight.
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Re: And yet another T120...

Postby Fast Eddie » Fri May 19, 2017 2:16 pm

Dave, that looks nice, and as TT says, I'd be fairly sure that's a Hayward job.

I used Hayward on all sorts of race jobs, right up to a 906cc NRE built in unit cases, I always liked them. I like how it keeps a decent Cush drive.

I don't like how the bearings and thrust washer run dry (if the cases is run dry), whilst it hardly matters on a race bike (racers don't tend to cruise around with the clutch in, or at least they shouldn't) it is a bigger issue for a road bike, especially if used in heavier traffic.

The Newby kit looks proper sexy, and (I think) has a sealed clutch bearing. The down side is it does away with the Cush drive!

Decisions, decisions!

@ Andy... calm down dear... I'm not hot rodding this one... honest...!
Last edited by Fast Eddie on Fri May 19, 2017 3:26 pm, edited 1 time in total.
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Re: And yet another T120...

Postby Fast Eddie » Fri May 19, 2017 2:18 pm

Andy.... make the call...
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