Running into a few problems installing robin/subaru kit.

Discussion in '4-Stroke Engines' started by nzwasp, Jun 21, 2008.

  1. nzwasp

    nzwasp New Member

    First off im happy to of found this forum and hopefully it will give me a bit of advice to end the frustration im experiencing.

    Ive got a Trek 7.3FX and im having some issues installing the rack mounted engine. On the back of the bike the piece that extends from the rack to just under the seat does not go on properly because the engine cannot be bolted on at a better angle. Also when installing the drive ring (thing that attaches to the spokes) i had to put about a 5 washers on the non gear side so that it would stop from rubbing on the frame. Also now that ive done that when i rack mount the engine the tyre rubs on the bolts holding the rack.

    Are trek 7.3fx bikes just really badly suited for this? can anyone suggest a bike i can buy at walmart that would better suit the job.
     

  2. atnekn

    atnekn New Member

    Nice walmart cruiser

    There is a nice looking orange cruiser that would probably fit.
    Look it up online and they can deliver it for free to any walmart in 10 days or less. Its only 100.
     
  3. nzwasp

    nzwasp New Member

    what about from walmart canada?
     
  4. lennyharp

    lennyharp Member

    There is nothing wrong with that Trek you have. It is way better quality than the department store bikes. David Staton shows an extension bracket you may need. The bolt problem may be solved by putting the bolt head inside and nut and washer outside. Any bike will present a few problems to assembly that trying as few ways will usually solve.
     
    Last edited: Jun 22, 2008
  5. nzwasp

    nzwasp New Member

    The unit really does not fit though. How do i stop the tyre or frame rubbing against the rack mounted parts?
     
  6. lennyharp

    lennyharp Member

    Reading back thru I see that you have a GEBE unit and the drive ring is what is hitting. For that I think you may need to widen the axle space a little to give more room on the side. I have never installed this unit so cannot answer too well, and without trying things I would not know. The bike you have is a 700 cm city bike design and a cruiser or mountain bike with 26 inch wheels might be needed to get enough clearance.
     
  7. augidog

    augidog Banned

    Last edited: Jun 22, 2008
  8. nzwasp

    nzwasp New Member

    Ah yes i have a 700c wheel size. I might go and get a cheapy bike just to get this working - Im doing this project mostly for interest to see if i could use it back home. aka only in Canada for another 5 months
     
  9. nzwasp

    nzwasp New Member

    It lives

    [​IMG]

    The only problem is that the back brakes need tightning due to my modifications and the bar thats supposed to be the 3rd part of the rack just doesnt work with my trek - rode 20k around town though and it seems pretty sturdy
     
  10. augidog

    augidog Banned

    official public warning & disclaimer

    i can't get yer pic to load, BUT if i read right and you have no torsion strap installed, DO NOT operate that vehicle...if the system suddenly rotates backwards towards the ground, it'll pull the throttle open as it does, major meltdown then...

    please clarify.

    here's a solution that can be applied to any (non-rear-suspension) frame:
    MVC-284F.JPG
     
    Last edited: Jun 23, 2008
  11. nzwasp

    nzwasp New Member

    torsion strap? - what do you suggest i do to attach the third part of it then. I've done 20kms on it around town seems rock sturdy to me.
     
  12. nzwasp

    nzwasp New Member

    I suppose i could use some sort of liquid nails or something
     
  13. augidog

    augidog Banned

    i call the "3rd" part a torsion strap because it resists the backwards torsion exerted on the system. all rack-mounts NEED one.

    i suggest you look at my previous post with pic...use a strong clamp of some sort and anchor it to the left-side seat-stay...
     
  14. nzwasp

    nzwasp New Member

    hmm yeah i could do something like that i'll have a look into it tonight.
     
  15. augidog

    augidog Banned

    you'll have no warranty protection without one...please, for safety and reliability, get that strap installed.
     
  16. nzwasp

    nzwasp New Member

    Didnt realise i had a warranty anyway. But year i'll look into something tonight too bad the strap is so long or it would be perfect to be mounted to the trek 7.3
     
  17. augidog

    augidog Banned

    engine isn't covered for being slammed into the ground

    hehe, it's called a "hacksaw" & "drill" ;) :lol:

    i'm only joshin' ya...keep me posted :)
     
    Last edited: Jun 23, 2008
  18. nzwasp

    nzwasp New Member

    re engine slammed into the ground

    well i figured that much. If it falls off on the way home i'll regard it as an acceptable loss.
    Since buying the GEBE engine it seems like i took the most expensive option. It goes great dont get me wrong but $700 incl shipping is pretty expensive
     
  19. augidog

    augidog Banned

    it is...but when installed and operated correctly, it may well be the only money you ever spend. it seems you haven't discovered the "rack-mount" section of this forum...there is tons of good info about the golden eagle setup.
     
    Last edited: Jun 23, 2008
  20. nzwasp

    nzwasp New Member

    Last edited by a moderator: Jun 23, 2008
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