Accelerator cable tube

Discussion in 'Mech Tech' started by DubCat, Nov 4, 2019.

  1. DubCat

    DubCat Sponsor

    It's amazing how many bits you find are missing when you go to put the giant jigsaw back together! Please can anybody help?
    1. I have nothing from where the outer tube finishes, roughly level with gearshift coupling, to where the engine will be. Should there be an outer tube above the gearbox? Can I just make one out of some 8mm kunifer that I have left? I will be fitting the CSP bell crank I've bought and I gather some rerouting is needed for that anyway. Anyone done similar, all advice welcome.
    2. What length is the gearbox earth strap - the bodged one I took off is about 18 inches, which I assume is too long? JK have one at 19.5cm which seems to short.

    Thanks all.
     
  2. There should be a flexi section on the end of the conduit. The flexi has a bell mouth to capture the end of the engine throttle tube (on a type 1). Not convinced a solid tube would do the job, as it would have to accomodate movement of the engine.
     
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  3. JamesLey

    JamesLey Sponsor

    1) Yes there should be a flexi tube that runs from the end of the pipe to the back of the engine. I bought one but it didn’t fit (too long). I still need to fit something there at some point!


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  4. DubCat

    DubCat Sponsor

    Do you have a link James? I couldn't find one.
     
  5. DubCat

    DubCat Sponsor

    I was thinking that it would be as long as the gearbox and is really only a shield. If the tube finishes level with the join of the engine and box, the movement would be taken up by the length of inner cable between there and the bell crank?
    It's hard for me to visualise without the box and engine being present.
     
  6. Hmm. Not convinced ;). The engine does wobble. Also, the cable goes around bends, which a flexi will accomodate.

    Have you got a type 1 or 4 engine.
     
  7. My spare strap in the garage is about 29cm, which sounds right.
     
  8. DubCat

    DubCat Sponsor

    Type 4 2ltr. I've found a flexi tube 600mm long at Schofields - looks about right.
     
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  9. Not familiar with what's on a type 4. Any solid tube would work-harden and snap, I reckon.
     
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  10. DubCat

    DubCat Sponsor

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  12. DubCat

    DubCat Sponsor

    Thanks Snotty. I'll ask when I call.
     
  13. JamesLey

    JamesLey Sponsor

    That was the one I tried to fit to mine and it was too long.


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  14. 77 Westy

    77 Westy Supporter

    On a Type 4 the bell end guide, fnr fnr, that the flexi hose fits into is in the tin and has to be repositioned for the bell crank linkage. Fit the linkage and tin to the engine to see where the throttle cable should be before you fit the engine.
    IMG_6717.JPG
     
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  15. DubCat

    DubCat Sponsor

    Is yours a type 4 James? How much too long was it?
     
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  16. DubCat

    DubCat Sponsor

    Perfect, thank you. Do you happen to have a pic of where the tube goes through the tinware? I know I'll need to drill it before fitting the engine but just to give me an idea.
     
  17. JamesLey

    JamesLey Sponsor

    Ah sorry no, ours is a type 1. I’m not sure how too long it was but it had a big ol curve in it meaning the cable wouldn’t reach.


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  18. DubCat

    DubCat Sponsor

    I'm hoping that as I'm moving the linkage bit, i.e. the bell crank, nearer the front by about a foot or so, the inner will hopefully reach. Make sense? We will see :D
     
  19. The stock type 1 flexi should be just about long enough to poke through the transmission hanger nicely.
     
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  20. DubCat

    DubCat Sponsor

    :eek: what is this hanger of which you speak?
    Edit: Phew! It's OK I know where you mean now. Thought for a minute I was missing yet another bit.
     
    Last edited: Nov 4, 2019
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