It getting there and there are only a few minor jobs to do to get it roadworthy.
Saturday, 9 October 2021
Video clip of the 3T starting up and a brief walk round
Thursday, 23 September 2021
It lives!
By the weekend, my replacement magneto had arrived and the new clutch springs.
A sunny afternoon and what better than little exercise by kicking over the Triumph.
After a bit of faffing around there was a fire from either cylinder but not fully when hey presto, the bike sprang into life. A momentous day! I suggest this bike has not been on the road for atleast 40 years plus!
One problem was the oil pressure gauge - it doesn't register anything BUT the oil is returning to oil tank (viewed from the filler cap).
Another bizarre thing is that I got the ignition timing wrong but it did restart a few times and ran well.
So a few more jobs to do and whilst I await a few bits (including a new loom - the one I have is rubbish) I will sort out another pressure gauge and re-seal all of the covers - once the timing is set correctly!!
So - progress!
I will embed a video of the bike running next time!
Friday, 17 September 2021
To start or not!
The time came last week to have a go at starting the Triumph.
Oils liberally put over the top end, gearbox, chain case and engine oil filled and a remote petrol tank setup. By the way, if you intend to use a remote tank, put a filter / tap on it - it is a pain with no way of switching off the fuel! Earth cable setup to have the ability to stop the engine (on the magneto) - ever hopefull!
Just a few checks and I could try the kick start!
Well, firstly there was fuel dribbling out of the carb. Secondly, I could not get a spark - it seemed OK on the bench and lastly, the clutch slipped. So it was back in the workshop and a bit of dismantling.
The short answer was:
- The carb float was not sitting properly on its shaft - easily remedied.
- The clutch springs were a little weak (too short) so some new ones were ordered (they are meant to be 1.5" long and these were a little short). In addition, I was probably using a slightly thick hydraulic oil for the primary case and so will try SAE20 next time)
- The magneto was removed and unless you got a drill onto the unit, there was no spark. I decided to send off the magneto to be tested and repaired as necessary. As my K2F magneto has a smaller bearing in it (19mm aperture by the seal as opposed to 25mm by the seal) it was decided to replace the whole thing with a fully reconditioned unit.
Wednesday, 1 September 2021
A bit of bling!
Ages ago, I was given a drawing of a suitable rack for the back of the bike that mounts onto the grab rail bolts.
Time to get it made! This was done by 'Classic Racks' in Cumbria and what an excellent job they did!
Really well made and a useful accessory should I decide I want to carry something.
Tuesday, 31 August 2021
Photos of the 3T so far...
Spot the oil pressure gauge fitted for initial start up!
Plug leads not cut to lenght yet!
Timing cover badge refurb
The current repro badges for the timing cover just do not look right and so I decided to refurb mine. I cleaned the badge carefully (and quickly) with acetone and then sprayed it gloss black - all over. Once fully hardened, I then sanded the face on a flat surface with 800 wet and dry using WD40. Once all the black on the lettering and edge was removed, peek was then used to polish up the brass.
The badge on the right is the original that I have refurbished and the one on the left is the repro one. When polished, I then sprayed a clear gloss lacquer on the badge - as good as new! (it shows a scratch but I could not see it!
Thursday, 26 August 2021
Timing disc and oil pressure...
Just a couple of shots showing the adapter for the timing disc and a take off for the oil pressure in readiness of trying to start the bike:
Update photos
Just a couple of photos to show the progress - which is now progressing!
The forks and handlebars now line up!
One step forward, two steps back?!
Sheesh, I really thought I was making headway until I noticed the handlebars would not sit straight. Careful examination showed the top yoke (H380) was bent.
Whilst about it, I was able to make the drain plugs for the fork oil - 2BA stainless fits very well! One tricky thing to do is to remove the damper retaining bolts at the lower end of the fork tube. Now I know why this spanner has a chamfer on it:
Thursday, 5 August 2021
Throttle cable
You would think the throttle cable installation would be easy - well it is when you know how. I removed the throttle 'stop' and tried (in vain) to install the cable.
The Amal carb end is fairly straightforward. However it was a good job I checked things over as the throttle slide was damaged and no return spring was in the carb. These faults were soon remedied and the cable inserted. I also did this off the bike.
Thursday, 15 July 2021
Metal work - final spraying?
When I decided to refurbish the tinware on the Triumph, a friend said I should get it all blasted and powder coated. Then it was an easy matter of filling any dents or pit marks with 2 pack body filler prior to a final spray. He was absolutely right. The powder coated metal work was flatted down first with Scotchbrite pads before any filler was applied. Here are some of the photos:
Tuesday, 13 July 2021
Further Magneto issues...
I thought I would investigate the ATD unit that I had before finishing off the magneto. It was very stiff and the weights looked seized. After soaking in white spirit, and then the ultrasonic tank the picture below show the offending parts:
If you look carefully, you will see the cam weights have elongate pivot holes and as a result, the weights have been rubbing on the pivot plate. It doesn't show very well but the lower plate is worn through about half way due ot the fact the weight pivots are so worn. Quite a mess! So I decided to refurb another I have and rivet a new fibre gear onto it. The rivets were 3/16" x 1/2" countersunk and were a perfect fit for peening over. I won't go through the whole process but once the retaining collar is pressed off then it is all serviceable. The damaged gear is shown. I have another magneto with ATD to do so I may show the process if there is any interest. The finished unit is on the left.
Wednesday, 30 June 2021
Magneto refurb...
Quite a while ago, I refurbished the magneto drive (K2F) but like the rest of the bike, I am dubious as to how well it was done, so another strip down was done - you guessed it - a few bits missing and the end float was wrong. New bits are now ordered and I await their delivery. One thing that is not available at the moment is a points set (brass plate variety) but I have a spare. I did manage to get a decent spark out of it, however!!
Monday, 28 June 2021
And it's - off we go!!
Well, it's been a while but I have now progressed to getting the workshop mainly sorted and now I'm turning my attentions to the 3T.
When we moved, the gearbox was behaving strangely and the kickstart didn't seem to work. When the bike was put up onto my lift, I then found I could not even turn the bike over, so I have decided to start again and dismantle the gearbox. (I may even do the same to the engine!!)
When I eventually got the cover plate off, the kickstart spring was broken and it was not engaging in gears.
I think that the box was not indexing correctly. Once dismantled, I noticed that one camplate roller was very rough and if looked like the index was wrong. In fact the fork selector and roller were blued and very rough.....a spare to the rescue again!
The photo below shows the mounting lugs for the speedo drive. There is a gear above the sprocket (hidden) that drives the speedo.
Photo below shows the use of a vertical bar in the vice to support the gearbox - much better than trying to use blocks of wood etc.
These are the components for the kickstart ratchet - Somewhere in the garage is the washer on the right which decided to fly off the bench!! Good job I had a spare.
The camplate seems to have been using a pointed plunger. The older ones are more like a chisel point. I will use that type - see photo below.
Now the gearbox is back together and the indexing seems to be working much better with all gears being selected correctly. A new kickstart spring has also been installed. I will put gasket sealant on the mating faces and then it is ready to go back into the bike.