1966 Triumph 6T Renovation

Mechanical woes? Ask other members for tips and advice.

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Willopotomas
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#16 Post by Willopotomas » Sun Nov 04, 2012 7:50 pm

fatboy wrote:Im sure you know this but worth a mention anyway.....
R/H crank bearing, if its a bearing, dontt worry, if its a bush,the truth of the journal is critical,as are the bush tolerances,this is your oil feed in,can have a big affect on oil pressure,
There is a sludge trap in the crank centre web (?) identified by hex head bolt, clean this ,
Well worth looking at better,higher capacity oil pump, Morgo if they are still going
If you are splitting the crank cases, there are pinch bolts at the crank case mouth where the barrells drop in, front and rear, later models have recessed bolts and can be a twat to spot
Cheers bud, but used to fix these things up for a living, so know me way around them. The crank bush you're thinking of was on the early 500cc unit lumps. The 650's all have main bearings.

The Triumph plunger oil pump is more than capable of handling the needs of the engine. I'll probably buy a new one, but it won't be a 'morgo' unit. Reason being I've seen no real advantage over the extra cost. This was the source of many debate on the classic forums. A friend of mine races a 54' Thunderbird with standard pump and has never had starvation issues.

Virtually everything consumable needs replacing. Hence why i've decided to strip the lot and make it 100% :smt001

Gio. Marches meet eh.. Sounds like a challenge to me. :smt003
Most motorcycle problems are caused by the nut that connects the handle bars to the saddle.

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#17 Post by fatboy » Sun Nov 04, 2012 8:08 pm

yes mate,last unit motor I stuck my head in was a 5TA/ Daytona hybrid pig,looooong time ago
Sounds like you are very much on it,be good to see the 'after'pics
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#18 Post by Willopotomas » Mon Nov 05, 2012 10:52 pm

Progress report. 05/11/12

Tonight's mission was to get the lid off and strip some of the tins.

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Closer look at the bores revealed they're 'glazed' and they're on a +0.020" oversize. I'll get my internal bore gauge on um and decide weather to take them out to +0.040 depending on results.

The brown tan on the piston crowns and inside the combustion chamber tells me that the mix was about spot on.. So that's encouraging.

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:smt026
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#19 Post by Willopotomas » Sun Nov 11, 2012 6:28 pm

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11/12/12

Slow progress. Primary is out, so engine nearly ready to take out the frame. On to the wheels then. :smt001
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#20 Post by Willopotomas » Sun Nov 11, 2012 9:22 pm

A bit later on in the same day.

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Pop. Engines out. Wheels and front end tomorrow. Should have it stripped down by the end of the week. :smt004
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#21 Post by D-Rider » Sun Nov 11, 2012 9:25 pm

So it doesn't smoke any more then ?!

Progress indeed :smt004
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#22 Post by MartDude » Sun Nov 11, 2012 10:53 pm

When did the 6T's get a single-downtube frame? My '57 T'bird had a twin downtube.

Bit like this (only this one's a lot nicer than the one I had)

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#23 Post by Willopotomas » Mon Nov 12, 2012 6:34 pm

The one pictured is sporting the pre-unit 'duplex' frame. A rare beast indeed. Most were single down tube splitting to two rails, similar to mine. If you still had it now, it would be worth a kin' fortune.

Yours being a 57' was a pre-unit. Mine being a 66' is of unit construction. Pretty much all of the 650 units of the 60's shared the same frame. There were some exceptions, but these were usually just an extra bracket etc. Nothing major.
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#24 Post by fatboy » Mon Nov 12, 2012 7:31 pm

Are you being faithfull to standard or will you be fitting a working front brake ? TLS :smt003
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#25 Post by Willopotomas » Mon Nov 12, 2012 9:34 pm

12/11/12

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Wheels are out.

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As is the front end.

Another productive couple of hours. :smt003
fatboy wrote:Are you being faithfull to standard or will you be fitting a working front brake ? TLS :smt003


The standard single leader was replaced with a TLS not long after I go it mate. The SLS brakes are good enough, but the TLS gives that little bit more, and also looks a lot nicer. :smt002
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#26 Post by Willopotomas » Tue Nov 13, 2012 7:00 pm

No going back now!

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Dropped the wheels in to a friend of mine who kindly offered to strip them down and take the hubs to the powder coaters. If they're back in time, they'll be off for new rims and spokes at the weekend. That'll be the last I see them for a month or so until they're laced up and ready to fit. :smt004
Most motorcycle problems are caused by the nut that connects the handle bars to the saddle.

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#27 Post by fatboy » Tue Nov 13, 2012 7:18 pm

Good descision that man, reckon thats going to be one lustworthy bike !
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#28 Post by D-Rider » Tue Nov 13, 2012 8:31 pm

Willopotomas wrote:No going back now!

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.... so you left Nate unsupervised with a pair of tin-snips then?
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#29 Post by Willopotomas » Wed Nov 14, 2012 10:48 pm

14/11/12

98% stripped. A couple of brackets, centre stand and the swing arm to remove then that's it. Off to powder coat, plate and paint. Engine work will begin next week once I've cleared the bench.. That's the fun bit!

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Most motorcycle problems are caused by the nut that connects the handle bars to the saddle.

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#30 Post by Willopotomas » Sat Nov 17, 2012 1:00 pm

16/11/12

Yep. Looks like I'm definitely going to need a new seat.

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A mate of mine said this looks like some sort of alien egg nest..lol..

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Most motorcycle problems are caused by the nut that connects the handle bars to the saddle.

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