Michael’s engine rebuild

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This topic contains 51 replies, has 7 voices, and was last updated by  jett 3 years, 4 months ago.

Viewing 15 posts - 1 through 15 (of 52 total)
  • Author
    Posts
  • #5754

    Michael
    Participant

    Hi Boys and Girls,
    Ladies and Gentlemen,

    I start an own thread to give you some more information about my engine rebuild.

    #11985

    Michael
    Participant

    That was the easy part.
    Removing the cylinder bank / barrels is always a challange.
    Today is the third day of trying, slapping and soaking. Pried it off eventually but broke a cooling fin.
    Removed engine covers and and starter motor as well.

    Cheers, Michael

    #11971

    kaptainkwak
    Keymaster

    This is excellent Michael. Thank you for sharing n keep it coming please

    #11986

    Michael
    Participant

    I will do !

    #11987

    Michael
    Participant

    Some progress:

    #11988

    Michael
    Participant

    and some more …

    stored the crankshaft back into a safe place eventually πŸ˜‰

    #11989

    Michael
    Participant

    some more progress:

    #11990

    Michael
    Participant

    … some more progress πŸ˜‰

    I have removed the valves from cylinder head:

    What do you think about the black exhaust valves seat ?
    Where is that coming from ?

    Cheers, Michael

    #11984

    Tango
    Participant

    OK Now that looks complicated! I’m a little apprehensive about attempting something like this. πŸ™

    #11991

    Michael
    Participant

    Hi boyZ and girlZ,

    today is my last working day this year !
    Holiday until 6th January 2015, hurra !
    Back to work on 7th Jan., ooooh !

    This evening I will pick up a crashed Z750LTD Twin, Y1 and “lock” it away in my shed. Needs further investigation what is ok and what is bent.

    Tomorrow I will clean the other parts of the engine and on Thursday I have a date with Mr. Gaenssle himself πŸ˜‰

    We will discuss what can be done with the engine. I am really curious what a specialist in engine rebuilding and tuning has to say about it πŸ˜‰
    … and what the prices are ?!?

    Keep you posted πŸ˜‰

    Cheers, Michael

    #11972

    kaptainkwak
    Keymaster

    Don’t keep s in suspense for too long . . . .

    #11992

    Michael
    Participant

    Hi guys,

    the date with Mr. Gaenssle was disappointing!
    He is not doing full engine restorations anymore. He is “only” doing the explicite mechanical part of that job.

    I am in contact with Ulf Penner.
    http://www.tuning-fibel.de/
    He is a motorbike mechanic and has written a modern “book” about engine tuning. He is willing to help me finding more power from the engine and to support me with further information.

    Well, some progress:

    #11993

    Michael
    Participant

    more pics, here the camshafts:

    #11994

    Michael
    Participant

    the valves:

    valve shaft diameter is the same size in and out

    #11995

    Michael
    Participant

    more pics:

    cylinder sleeve in engine case
    (engine is upside down)

    engine case is not maschined to match the sleeves. There is a minimum of 1 mm gap between sleeve and case. At some places there is even more than 1,8 mm gap between them.

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