Winston's Memoirs

Discussion in 'New Zealand' started by trustme, Dec 12, 2012.

  1. motu

    motu Loose Pre Unit

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    With head studs you'd never be able to get the head off in place (unless it was in a Featherbed), or can you remove the studs for head removal and install ? You can open up ring lands with 2 blades in a hacksaw, used blades are better.
    #81
  2. trustme

    trustme Long timer

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    The 4 large centre studs were always there, I'm hoping it won't be an issue. The new barrels are slightly higher than standard but Mr Map assured me I would have no problem . The way my luck is going I won't hold my breath
    I'm a little loathe to start messing with the pistons too much .

    Checked emails while I was typing this , Mr Map says don't cut the pistons & email him a set of numbers embossed on the inside of the pistons to find out what happened . He will then send new rings & clips.
    Guess he is working on a Sunday
    #82
  3. Voltaire

    Voltaire Titanium and Ceramic Hipster

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    You can make a bore hone by wrapping 100 grade sandpaper around a 1/2" shaft and use an orange Black and Decker drill.:evil ( gotta be orange unless you have an aluminium one)

    Disclaimer: last used in about 1980.
    #83
  4. trustme

    trustme Long timer

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    You guys are showing your age


    [​IMG]
    #84
  5. motu

    motu Loose Pre Unit

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    I guess with an alloy barrel it will need studs as you don't want to be screwing head bolts in and out every weekend, but I didn't think there was much room between head and top tube. If you have to remove the engine to get the head off, you may as well have an XS650...although the Triumph is considerably lighter.
    #85
  6. Voltaire

    Voltaire Titanium and Ceramic Hipster

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    Hey Trustme, is your bench queen going to be at Hampton Downs on the 4th Aug?
    I've offered Maxheadroom a ride in the Clubmans class as I'm worried about him and this sidecar thingie he has bought.......its a bleedin' Honda :huh Still his Missus said she fancied a bit of swinging....:rofl
    #86
  7. trustme

    trustme Long timer

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    The bench queen reigns supreme. Mr Map said don't touch a thing, it would appear one of his despatch team failed to realise that forged pistons did not use standard rings. Waiting waiting :ddog , always waiting :ddog
    #87
  8. Padmei

    Padmei enamoured

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    You should get a BMW.
    #88
  9. trustme

    trustme Long timer

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    Unfortunately I'm unable to master the secret handshake
    #89
  10. Voltaire

    Voltaire Titanium and Ceramic Hipster

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    Steve McQueen would disown him.:rofl
    #90
  11. trustme

    trustme Long timer

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    Rings arrived :clap Work is going ballistic :muutt

    I'll find time somehow
    #91
  12. trustme

    trustme Long timer

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    Apologies , I'm away 6 nights a week so get very little time to work on Winston or talk shite on the interweb
    There has been progress , the motor is back together & back in the frame. The wife picked Winston up from the exhaust man on Sat arvo . Here's a few pics , I will paint the new 1 3/4 " headers while I am away this week. There is a testing day at Taupo on Oct 10 should be achievable. 1 good day will have it finished .
    I'm toying with the idea of narrower bars with less rise, common sense says 'yes', common sense is so boring.

    [​IMG]

    [​IMG]
    #92
  13. Mark_S

    Mark_S Fair Weather Faggot

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    pipes look awesome - Griso like
    #93
  14. Padmei

    Padmei enamoured

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    They look beautiful. How are they connected to the head???

    Must have been an old triumph owners club run to Golden bay this weekend. There were a few being trailered & vanned back. They don't like the Huns do they not many waved back:lol3
    #94
  15. motu

    motu Loose Pre Unit

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    Fat pipes? Triumph reduced the dia of the pipes in the mid '60's for a reason....
    #95
  16. Voltaire

    Voltaire Titanium and Ceramic Hipster

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    Cheaper?
    #96
  17. motu

    motu Loose Pre Unit

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    Fat pipes give slow gas speed, they reduced the pipe dia to speed up gas flow - you can see the step down from the clamp to the pipe on say a '69 Triumph. Bikes from the '50's had the fat 1 3/4 headers.

    Fat pre unit.

    [​IMG]

    Reduced dia pipe on '69.

    [​IMG]
    #97
  18. Box'a'bits

    Box'a'bits In need of repair

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    Motu, they did that on BMWs as well. My RS has 40mm pipes. The stock GS has 38mm stepped down to 36mm. It's partially to improve bottom end responce. Racer compared to Tractor.

    Trustme's bike is for racing, higher (relatively speaking) RPM performance.
    #98
  19. Micawberism

    Micawberism Been here awhile

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    Faster gas speed? :huh My understanding is flow speed is an irelevant factor :evil
    Back pressure is used to change the engine performance matrix. :deal
    Pressure is not caused by speed of flow, it is caused by restriction of flow :wink: Thus smaller dia pipes :D
    #99
  20. clintnz

    clintnz Trans-Global Chook Chaser

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    Dunno about that one. Mechanics of compressible fluids is a bit over my head but I do remember that with incompressible fluids in pipes pressure drop rises in proportion to the square of the velocity. :norton

    ...plus, big pipes look phat :wink:

    Cheers
    Clint