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71 Roadster rebuild

Member's Norton Restoration Projects

Re: 71 Roadster rebuild

Postby grandpaul » Tue Jun 14, 2016 3:24 pm

Not all shocks are alike.

The inverted but standard-looking rear shocks for the '79 Triumph 750 Bonneville T140D Special will fail if installed with the dampers on the bottom!
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Re: 71 Roadster rebuild

Postby cjandme » Fri Jun 17, 2016 9:22 am

freefly103 wrote:............ Frame, swing arm, side covers and a few other goodies from a member on here (thanks Cj).

Frame and swingarm. Wheels behind the lift
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Questions:
Frame year?
Rust inside rear ISO tube - will this clean up ok?
Weld on engine cradle - what to look for in deciding the cradle can be reused?

Glad everything arrived okay Joe. I was told that it was a '69 frame and I believe that those are the original welds /Brazed joints on the cradle. You are making great progress! Really nice sealy you've got there :mrgreen:
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Re: 71 Roadster rebuild

Postby freefly103 » Wed Jul 06, 2016 2:37 pm

Some more progress:

Forks and yokes assembled. Fork stanchions not fully seated yet in top yokes. Still waiting on instrument cups before I do that:

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Went with a sealed bearing at the top and a taper bearing at the bottom. After a lot of reading on here, seems that there is no clear and correct choice of bearings to replace the cup and ball races that are original on this frame. Also chose to use 70 yokes to match the 70 frame (I sold the 850 Ang yokes on F_Bay - thanks to who ever bought those):

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Lower end back from Mr Maney for a freshen up and to install a CNW breather. Second transmission lollipop adjuster installed, as this bike will have a belt drive fitted:
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Transmission also in:
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When I removed the timing cover and oil pump to send it to AMR for their mod, the oil pump gasket has been installed upside down, partially covering one of the feed/return holes. Upon checking the bearings that were replaced, it didnt seem to have been a problem. Good to have it sorted though.

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The bearings don't look original to me, so it seems that the bottom end must have had some attention at some time in the past, and this may have been when the oil pump gasket was inverted. Theyare in good condition:

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70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby freefly103 » Wed Jul 13, 2016 1:12 pm

Starting to look like a Commando again:

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Cylinder head attached, not without some fiddling with locating the push rods. Dave Taylor head steady installed. Single Mikuni attached. CNW head light ears on (forgot to put them on as I was installing the stanchions and yokes, so a bit of unnecessary re-work).

Wheels back on. Am going with a GPS speedo so KC of NYC Norton is making a spacer to replace the self expanding speedo drive which is no longer required.

Ordered a Norvil tank and a few other bits a pieces today, so that should be about it for the major parts, but I can see there is still a lot of small fiddly stuff to do, not the least of which is a new chain on the 19 tooth sprocket, Tri-spark, wiring harness etc.

The crappy centre stand has to go, decided to install the newer version that swings off the tranny cradle since the cradle I bought has those holes drilled in it already.

Still waiting for the timing cover, trans cover and outer primary to come back from polishing.
70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby mschmitz57 » Tue Jul 19, 2016 2:29 pm

Is that Vietnam Cafe seat for the Interstate tank?
I've been eyeing the Interstate version on eBay to go with my India Interstate tank and was wondering how it looked mounted with the tank.
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Re: 71 Roadster rebuild

Postby freefly103 » Thu Jul 21, 2016 11:13 pm

Not sure if its made for the Intersate tank. I'm putting a Norvil petrol tank on it, so will have to shorten the seat by about 3 inches.

It's also wider than I'm used to, as I have a Corbin GF seat on my roadster, so will narrow it also.

Otherwise, quality and workmanship is good.

If you want measurements, happy to get the tape measure out and send you the details.
70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby freefly103 » Fri Aug 05, 2016 2:39 pm

More progress:

Wheels on. New IWIS chain from AndyChain. Timing cover back on. Very happy with the polish job on the shiny bits.
Norvil tank - going to have some minor clearance issues with the yokes. It's LOOOONG - 620mm. Had to cut the seat length. It's currently at the upholsterer for recovering.
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Shiny bits after a good polish. Norvil rear sets and Triumph style straight kick start lever.
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Harley Dyna coil should do the job.
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Stole an idea off here for indicators located just behind the seat knobs. These indicators are from the front of my 2011 Fatboy that I removed some time ago.
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Primary back together with Norvil belt drive in place.
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Exhaust headers and pipes still to install.
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View from the top. I used the instruments from my Roadster and installed the RGM GPS speedo and tacho on that bike. They are NICE.
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Clearance issues are not obvious or serious but there is a slight interference with the tank and yoke toward max turn on right and left. Tank design could be better thought through.
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Still f*&king around fitting the centre stand spring. Funny how simple jobs can take up a lot of time.

All in all, getting there. Just waiting on a few bits and pieces eg light / horn switch before fitting the wiring harness. Some one else will do that. I'm not good with electrics.

Also waiting on rear fender mounts and Dzus brackets. Then paint.
70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby grandpaul » Fri Aug 05, 2016 9:12 pm

I made a double 5" diameter loop of nickle plated wire and run it through a 3" section of 1/2" electrical conduit and twist the ends real well, then use that to pull the free end of the spring into position on the centerstand (or sidestand). I typically lay on a sheet of cardboard on the ground on the timing side, with the bike set on it's sidestand to pull that spring into place. Leverage with one foot on the front axle or somewhere...
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Re: 71 Roadster rebuild

Postby htown16 » Sat Aug 06, 2016 2:57 pm

I use GP's method except make loops of a couple heavy duty zip ties. Lay under the bike and pull the spring back into position. Then when the zip ties are trapped under the spring, you can cut them at the spring and pull the ends free.
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Re: 71 Roadster rebuild

Postby freefly103 » Wed Aug 10, 2016 12:35 pm

Just checking out side panel fitment with the gas tank:

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Not the clean lines I was hoping for. The angle between the bottom of the tank and the top of the side panel is not parallel. Not much I can do about this apart from reshaping the tank which would be a very costly exercise. Maybe a tank paint scheme that makes the tank appear parallel to the side cover will be the way to go.
70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby Danno » Wed Aug 10, 2016 1:50 pm

The later side panels are shorter along the top line and have less angularity. They might look better due to the top line being more parallel to the bottom line of the tank.
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Re: 71 Roadster rebuild

Postby cjandme » Wed Aug 10, 2016 9:29 pm

Danno wrote:The later side panels are shorter along the top line and have less angularity. They might look better due to the top line being more parallel to the bottom line of the tank.

+1, I was thinking the same thing. I believe that fellow forum member swoosh dave has the same tank, with the new style side panels I'll look for his avatar to check it out.

p.s. search for the thread labeled "3D printed relay holder" it is one of Swoosh's threads and you can see a good shot of that same tank with the later side panl.
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Re: 71 Roadster rebuild

Postby freefly103 » Thu Aug 11, 2016 5:48 am

Called RGM to investigate. Later side panels won't fit as the RHS attaches to the later oil tank (I have the square central one) and the left has a tab at the bottom which will be problematic for this frame also.

I will try to paint the tank in a way that it gives a parallel appearance between the bottom of the tank and side panel.
70-750, 71-750, Seeley-750 (Titchmarsh frame, Fullauto Head, Maney crank, cases and barrells, FCRs by NYC Norton)

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Re: 71 Roadster rebuild

Postby Danno » Fri Aug 12, 2016 5:18 am

freefly103 wrote:Called RGM to investigate. Later side panels won't fit as the RHS attaches to the later oil tank (I have the square central one) and the left has a tab at the bottom which will be problematic for this frame also.

I will try to paint the tank in a way that it gives a parallel appearance between the bottom of the tank and side panel.


I thought about that after I posted. Seems like there was a RH panel on some model that attached similarly to the older LH panel with a flat upper bracket and dzus fastener through the frame web. I know the flat brackets are available for the LH panel because dumbass me bought two, so I have a spare. I made the two-peg rear bracket on mine, which (incidentally) also mounts the hydraulic rear brake light switch that normally bolts to the back of the right Z-plate. Or, you could go with a single hole/rear peg bracket and an l-bracket and rubber bumper at the bottom to fit between THAT frame web and the top of the RH Z-plate.

I think it could be done with a little ingenuity.
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Re: 71 Roadster rebuild

Postby Bob Z. » Fri Aug 12, 2016 6:15 am

I think I would try and make some custom panels out of sheet alloy or even plastic and use the stock frame brackets.
The panels are cosmetic only, they do not support anything else. And with flat panels you could get them closer in to the frame so that the tank is the widest part between the knees, not the side panels.

Just a thought. Some bikes that use that style central oil tank don't use any panels at all.

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