Featured Mr O's 1966 T120

Discussion in 'Vintage Classics' started by MrOrange, Apr 26, 2018.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
Page 1 of 6
  1. MrOrange

    MrOrange Guest

    #1 MrOrange, Apr 26, 2018
    Rebuild thread. Will update as we progress. I know how you like photos so let's get started.
    DSC_1063.JPG

    Tank and seat off. Fuel pipes are as hard and brittle as cast iron.

    DSC_1071.JPG
    Side panel off. 7/16 coming in very useful. Recognised size of bolts straight off, all coming back to me.

    DSC_1063.JPG
     
    • Like Like x 11
  2. MrOrange

    MrOrange Guest

    #2 MrOrange, Apr 26, 2018
    Ade, honestly mate, your taste in music is shocking !!! :confused:

    :blush:
     
    • Agree Agree x 5
    • Thanks Thanks x 1
  3. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,457
    800
    East Riding of Yorkshire
    #3 stevethegoolie, Apr 26, 2018
    Most of that will soon polish out!!!!:grinning::grinning: Probably.:(
     
    • Funny Funny x 2
  4. MrOrange

    MrOrange Guest

    #4 MrOrange, Apr 26, 2018
    I wish! :p

    It's all part of the fun, be boring if it was easy. :cool:

    Anybody know the firing / crank angle of these engine's?
     
  5. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
    2,639
    800
    Holmfirth West Yorkshire
    #5 Tigcraft, Apr 26, 2018
    NO!
     
  6. stevethegoolie

    stevethegoolie Elite Member

    Oct 16, 2014
    2,457
    800
    East Riding of Yorkshire
    #6 stevethegoolie, Apr 26, 2018
    Crank is a 360 degree jobbie. Pistons rise and fall together.
     
    • Thanks Thanks x 1
  7. MrOrange

    MrOrange Guest

    #7 MrOrange, Apr 26, 2018
    I presume alternate firing? As one sucks other is on bang and then blow / squash as a pair. Doubt they had big bang engine back then:p
     
    • Agree Agree x 1
  8. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
    2,639
    800
    Holmfirth West Yorkshire
    #8 Tigcraft, Apr 26, 2018
    No. Both bang at same time. Pararel means that as apposed to in line Twin which is one up one down.
     
  9. capt

    capt Elite Member

    May 8, 2016
    3,051
    750
    western Australia
    #9 capt, Apr 27, 2018
    Coat it in molasses or stick the rusty chromed bits in a bath of molasses, it will eat the corrosion off/away, leaving you with bright shiny bits that require minimal Polish work.
     
    • Like Like x 1
    • Useful Useful x 1
  10. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,362
    800
    Nr Biggar
    #10 Callumity, Apr 27, 2018
    Both right. It IS a parallel twin fitted tranversely (side to side) rather than longitudinally (in-line). And they do fire alternately unless twingled with a camshaft mod to go Big Bang. If you have ever ridden one two up under moderate acceleration you can feel the power strokes as it labours a little.......or maybe it is just the vibration!
     
  11. MrOrange

    MrOrange Guest

    #11 MrOrange, Apr 27, 2018
    DSC_1094.JPG DSC_1093.JPG
    Coming up nicely.
     
    • Like Like x 11
  12. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,274
    1,000
    Uk
    #12 crispey, Apr 27, 2018
    Are there a few kids missing a teacher?
     
    • Funny Funny x 4
    • Agree Agree x 1
  13. stollydriver

    stollydriver Elite Member

    Apr 25, 2015
    2,075
    800
    north wales
    #13 stollydriver, Apr 27, 2018
    He' left an xbox in class and lots of sweets o_O
     
    • Funny Funny x 4
    • Creative Creative x 2
  14. Rocker

    Rocker Elite Member

    May 1, 2016
    1,665
    800
    Suffolk
    #14 Rocker, Apr 27, 2018
    She's coming on a treat MrO you'll have her going up the road in no time :) I think you still failed to mention how much though:confused:
     
    • Agree Agree x 1
  15. stollydriver

    stollydriver Elite Member

    Apr 25, 2015
    2,075
    800
    north wales
    #15 stollydriver, Apr 27, 2018
    3 haggis and a crate of irnbru :mask:
     
  16. Tigcraft

    Tigcraft Unheard of Member

    Mar 29, 2014
    2,639
    800
    Holmfirth West Yorkshire
    #16 Tigcraft, Apr 27, 2018
    Look at this explanation
    https://www.bikesmedia.in/reviews/d...arallel-twin-cylinder-motorcycle-engines.html
     
  17. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,362
    800
    Nr Biggar
    #17 Callumity, Apr 27, 2018
    A twingle.....they do exist. In 4 cylinder machines we call them Big Bang...
     
  18. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,274
    1,000
    Uk
    #18 crispey, Apr 28, 2018
    Are you trying to tell me there are 4 cylinder twins? Ooooh me ‘ead ‘urts
     
    • Like Like x 4
  19. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,362
    800
    Nr Biggar
    #19 Callumity, Apr 28, 2018
    Go back to sleep. You are having a nightmare.
     
    • Funny Funny x 2
  20. Yorkshireman

    Yorkshireman Crème de la Crème

    Dec 12, 2015
    3,403
    1,000
    Barnsley
    #19 Yorkshireman, Apr 28, 2018
    Suzuki and Kawasaki made three cylinder twins in the 70’s (when it rained) : unamused:
     
    • Funny Funny x 5
    • Agree Agree x 2
  21. Tiglet

    Tiglet Vintage Member

    Mar 28, 2016
    4,434
    1,000
    Cheshire
    #20 Tiglet, Apr 28, 2018
    Another mod that’s possibly been done to Bonny is the fitting of Amal Concentric carbs.

    I think they were first fitted in ‘67/68 ???? but I may be wrong :eek: twas a long time ago is my excuse.

    Standard fitment would have been Amal Monoblocs.
     
    • Agree Agree x 1
Page 1 of 6
Loading...
Similar Threads - O's 1966 T120
  1. MightyBoosh

    Who's Been To The Eifel?

    MightyBoosh, Aug 24, 2025, in forum: Rideouts, Trackdays, Touring & Spotted
    Replies:
    4
    Views:
    376
    MightyBoosh
    Aug 25, 2025
  2. Adrian Braithwaite

    3x Midland G7 Radio's With Accessories

    Adrian Braithwaite, Aug 2, 2024, in forum: Parts, Accessories & Clothing
    Replies:
    0
    Views:
    470
    Adrian Braithwaite
    Aug 2, 2024
  3. andypandy

    One Of My All Time Hero's

    andypandy, Jul 21, 2023, in forum: Lounge
    Replies:
    10
    Views:
    1,465
    salmawisoky
    Sep 5, 2023
  4. Tiglet

    Who's Going To Be Watching.

    Tiglet, May 21, 2021, in forum: Lounge
    Replies:
    31
    Views:
    3,433
    andypandy
    May 25, 2021
  5. joe mc donald

    Just Playing With My Scotland Video's From Last August

    joe mc donald, Mar 14, 2021, in forum: Triumph General Discussion
    Replies:
    18
    Views:
    1,476
    andypandy
    Mar 15, 2021

Share This Page

Sign up