Featured Cyl Head Refurb

Discussion in 'Builds & Projects' started by darkman, Nov 27, 2020.

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  1. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    Found a suitable correct year head for my 70C at long last and had Patric at Seager Engineering sort the ex ports valves n guides for me so i can now finish the bikes off properly [​IMG]

    127910505_1577956739071491_5384133343960951319_o.jpg

    128002838_1577902665743565_5793674916560183227_o.jpg

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  2. curly

    curly Noble Member

    Jul 3, 2016
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    Looking tip top!
     
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  3. OsteKuste

    OsteKuste Intergalactic Warlord
    Subscriber

    Oct 22, 2017
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    Shiny!
     
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  4. Wessa

    Wessa Cruising

    Apr 27, 2016
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    I just have to admire how clean you get your engine bits. Hats off to you mate :)
     
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  5. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    Thanx. Exciting bit is getting it fitted next week and finishing off the job as i should have a few years ago instead of making do with the head i had at the time :)
     
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  6. Tiglet

    Tiglet Vintage Member

    Mar 28, 2016
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  7. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    #7 darkman, Nov 28, 2020
    Last edited: Nov 28, 2020
    Yes this one was :) some dry glass bead blasting, same result :)

    20191112_142210.jpg
     
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  8. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    Managed to get the engine cleaned off and get the bike in the workshop and remove the cyl head :) A bit more cleaning and prep then the refurbished head can go back on.

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  9. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    Head back on and one heat cycle, will retorque head and adjust tappets next week n finish off the job.

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  10. Don the Don

    Don the Don Bigger Than The Average Bear

    Nov 5, 2019
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    Looking good mate
     
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  11. joe mc donald

    Dec 26, 2014
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    Darkman
    Wouldn't Have expected any less from your good self. You are one in a million.
    Joe.
     
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  12. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    For anyone doing a similar job, some factory info on head to tube seal crush. Figure given for crush is with gasket in place.

    Crush.jpeg
     
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  13. Sprinter

    Sprinter Kinigit

    Aug 17, 2014
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    How long is an air cooled heat cycle, and do you use a fan?
     
  14. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    I run my engines until i feel warmth in the oil/tank and some times use a fan if its warm, sorry if its a bit vague but that what i have done for years,
     
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  15. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    In between striping a pre unit 6T for a rebuild i finished off the head job at last.

    20201217_142447.jpg
     
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  16. Wessa

    Wessa Cruising

    Apr 27, 2016
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    looks stunning mate :):)
     
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