A Preunit Triumph Motor Rebuild

[@markflower9300]

I did this when I was 19. Bike was stollen while I was still running it in. In the 1970s. Thanks for the nostalgi.

[@frankmarkovcijr5459]

I love mechanical videos on Triumph it's so good to see how everything gets put together. To learn what to do and what not to do.

[@niktaylor9149]

Amazing vid. I have my late Dad´s Road Rocket/Super Rocket grasstrack/trials mongrel plus sidecar to learn to understand and look after. Got goose bumps at the end, cos of the sound, when you got the lil beast going. Thank you. 🙂

[@glennpettersson9002]

Thanks for sharing your experience I appreciate you taking the time, the music was good too. Happy trails 👍

[@positiveground2995]

Nice! Thanks for all the work recording and editing this, its a great overview! Interesting to see different techniques. Have fun terrorizing the neighborhood with those pipes!

[@johnmcclain3887]

Thanks, first time I've seen a pre-unit go together. Looks good, sounds good.

[@triumphjunkie3792]

Great video

[@steveburden1801]

Great video 👍

[@frankmarkovcijr5459]

When my Triumph TR6 was 40 years old the camshafts wore out. The motor has to be torn down to replace them. Skip the bike down completely. My wrench was having trouble getting the plug out of the sludge trap because it was almost full after 50 years on the road and I told him it's a $7 part throw it away and buy another one. I guess my bike is good for another 50 years.

[@thomastraddles1204]

Nice!

[@Yzftube1]

Great job on the video. It will be very helpful for my restoration. You mentioned you used 1/4-20 for the Heli coils in the rocker block. Were they originally Whitworth threads and you converted over to standard 'inch' fasteners? All of my fasteners appear to be whitworth.

[@vijaywaingankar8352]

Good work

[@kriskirby1387]

Love the ball hone

[@goosecaboose138]

where do i get a spark plug hole adaptor for my depth gauge?

[@pauldaxberger1113]

Hello,a question,is the inlet an exhaust cam the same,can I change both ex for in or in for ex?

[@AskingForAFriend]

8:44 great video. Right here at this time stamp, you’re checking up-and-down motion, but it looks like you have some side to side play? How much side to side play on the conrod did you have?

[@kencory3386]

piece of pvc pipe with hose clamp lil lube in side u wont scratch the pistons when installing the barrels

[@kencory3386]

about a 1nch long piece cut half in slot so u can get it off ,works really well been using mine for last 40 years

[@MrSlingshotdubai]

amazing.. where did you get the torque settings from?

[@joecoolvette6107]

You can download a free Service Manual from Lowbrow Customs. Torque settings are in it.

[@goosecaboose138]

rad

[@jeronimojulianocarvalhofer4530]

hi. what parts are you using instead of the alternator. I can identify the rotor spacer and the nut but not the other two. thank you.

[@loop1479]

I expect a generator, mounted at front of engine

[@pauliebots]

Can you tell me how you cleaned the cases, was it just the dish washer?

[@vorhese]

I use brake clean and a degreaser and a toothbrush. It is fairly impossible to clean a motor and it not look slightly dingy without blasting it, like vapor blasting.

[@pauliebots]

@@vorhese if you are using your bike like we do, how long before its all dingy again after vapor blasting.? Hell it'll get dingy in the garage!!! I don't feel the cost and trouble is worth it. How about you?

[@joecoolvette6107]

>>DON'T

[@TheReverb1]

Hi; are 3 rings; you cannot obtain 180º fella. You do not put the ring gap to the side holes or to the middle of the pistons as you know. All rings move anyway.

[@joecoolvette6107]

@@TheReverb1 Jesus help me.... 1) The oil ring end gap is set to an area in-between the wrist pins. (Either side; thrust side or non-thrust side) 2) The scraper ring in the second landing of the piston is set 180 degrees opposite from the oil ring's end gap. 3) The top compression ring is set 180 degrees opposite of the 2nd ring, or scraper ring's end gap. Oil ring and top compression ring gaps line up, BUT the 2nd ring is in-between and covers the gap.

[@joecoolvette6107]

@@TheReverb1 NO, fella, the frickin' rings DO NOT move if you have done a PROPER honing job.

[@TheReverb1]

@@joecoolvette6107 ...that way the first and third ring gaps are in the "same" line but yes I put them similar but try that all the gaps are in different lines (vertically viewing)