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Thread: TZR 250 engine on the frame ? upload yours photographs

  1. #9
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    Default Re: TZR 250 how to fit on the frame

    Hi Osprey,



    The flange you've left on the end of the crank case is not strong enough to be used as and engine mount.



    Also, as you've chopped of the gearbox and its rubber mount you can't use the rubber mount at the front of the engine either. You'll have movement on the front and a rigid mount at the back and that's a bad idea. That could explain the rough running.



    The only reasonable way to mount your engine is to put a plate or a couple of bars underneath it and use longer crank-case bolts straight up though the lot.



    That's the way it's usually done.





    Cheers.



    Andy.


  2. #10
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    Default Re: TZR 250 how to fit on the frame ,problem crack ...

    upload please and yours engine-frame photographs

    thanks

  3. #11
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    Default Re: TZR 250 how to fit on the frame ,problem crack ...

    Hi Osprey,



    here is a pic what i do to the bottom of my engine crankcase- i have milled flat bits onto the front and rear pairs of main engine casing bolts. You can just use a file to do this.



    Then i make an engine subframe from a piece of steel or aluminium flat (30x5 steel flat is normally ok) which attaches onto the bottom of the engine (using longer bolts) and goes out to mountings. In your case you must hard-mount it to your main frame otherwise the belt will come off!



    here is some useful info for you with someone with a very similar set-up:

    <a href="www.hovercraft.demon.co.uk/making%201127.htm" target="_blank">http://www.hovercraft.demon.co.uk/making%201127.htm

    </a>



    Pete






  4. #12
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    Default Re: TZR 250 engine on the frame ? upload yours photographs

    Any other photograph from engine- frame ??

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