Triumph Pre-Unit Gearbox Assembly/ Rebuild

[@alistairbernard9574]

A Great Video. Excellent Build of the Pre Unit Gearbox with easy to follow and correct methodology. The Guy who built my 58 5T messed it up totally that it had to come out again and again. 🤦‍♂️ Finally a Mechanic friend of mine put it right. 🙃😁

[@BPantherPink]

Beautifully explained and illustrated...Thank You

[@slaapstad]

Enjoyed this - thanks! Noted that marking neutral while stripping makes life easier in the long run!

[@alangillard7026]

Wot if you don't mark them or you have to reassembly gearbox from a box of bits with no marks on them

[@slaapstad]

@@alangillard7026 I would imagine that it would be best to follow the instructions in the Triumph workshop manual if you're assembling from parts.

[@brustar5152]

Then there is the 1958 pre-unit introduced Slick Shift transmission which was an available option until 1962 I believe. I had a 58 TR6C with that and the lucas compi mag and rode that thing trouble free for years until trading it in for a new 1968 TR6R. Love your vids.

[@sooperzero4087]

Thanks for taking the time to share your knowledge. Cheers

[@leemelling443]

You made that look easy!!

[@peticiclo]

Thanks for the video. my gearbox is exactly the same, but when I disassembled I didn't put a mark on the neutral of the camplate, so now the gears usually come loose and it stays in neutral. I have to disarm again. Oh my God!

[@Motocicloman]

Great vid but i was really looking how to pre tension the kick start spring whilst putting the outer cover back on.

[@youngoldjoe3026]

Hi, have you sorted your kickstart spring assembly yet? Sorry I didn't video it. From memory I wound the spring back with the kickstart dowel on the centre case then pushed the outer case flush against it with the kickstart held downwards (compressing the spring) a BSA will be the same so It may be worth looking up a gearbox assembly video for that 🙂 ATB YoungOldJoe

[@wreckrat1]

Excellent video but could you explain the difference in gear selection with the gearshifter in the position you have it...ie you have it in the 1 up 3 down direction, typically the shifter is the other way resulting in 1 down 3 up...if that makes sense...

[@youngoldjoe3026]

Hi @wreckrat1, I see what you mean, I would imagine if the gear shifter was the other way (pointing forward) when you clunk down to go in to first you would select second, meaning when you clunck up you would find neutral ect ect it's hard to imagine but I'm fairly sure it would work out that way 😉 you could always try it to be 100% and see what you prefer

[@AskingForAFriend]

Where can I fine measuring tolerances of gears and shafts? Can’t find anything

[@Oscar-776]

Nice one Mate! Very informative! Where did you get that neat vice and mallet? 😅

[@jumpfortyfour9965]

could you please do a video of unit tr6 triumph please

[@youngoldjoe3026]

Hi Jumpfortyfour, Im afraid I don't own a TR6 engine/gearbox so I cant, However if I come across one ill be sure to do a video!

[@jumpfortyfour9965]

thank you very much for your reply