Rebuilt Gearbox, Poor selection and noisy.

Discussion in 'Mech Tech' started by Patrick Nguyen, May 20, 2019.

  1. Hi I recently changed the box on my bay window for a 2nd hand freeway flyer 002 box which was brought from VW heritage about 1.5 years ago by the original purchaser.

    The box has been awful shifting. Getting into 1st and 2nd was not nice and downshifting from 3rd to 2nd was very poor. No amount of adjustment fixed it. Getting into reverse and 3rd and 4th was always good. There are no bushing issues or selector problem as previous box was fine.

    The gearbox made a lot of noise whilst driving in all gears. The only time the noise stopped was if I depressed the clutch to the floor.

    I have included pictures. It looks like the support bar for the pin is bent which probably adds to why the gears do not slide easily whilst in neutral.
     

    Attached Files:

  2. As far as the noise is concerned, drop the oil, see if any bits fall out and it its silvery coloured or not.
     
  3. Is the oil level ok?
     
  4. Unfortunately you’ve probably discovered why the original purchaser offloaded it.
     
    monkeyvanwestybike and snotty like this.
  5. Oil was good and clean., but the drain plug was full of fine swarf. No large chunks in box though when I swapped bell housing.
     
  6. Is it worse in 3rd/4th or same in all gears?
     
  7. Noise is in all gears and increases with speed. But selection of 3rd and 4th is very easy.
     
  8. Is noise worse when you are in over-run, i.e coasting.
     
  9. davidoft

    davidoft Sponsor

    does the noise go when pressing the clutch whilst stationary and moving?
     
  10. Good question!
     
    Patrick Nguyen and davidoft like this.
  11. yep the noise disappears with the clutch fully depressed.
     
  12. davidoft

    davidoft Sponsor


    when stationary and when moving ?
     
    Patrick Nguyen likes this.
  13. When moving and stationery.
     
  14. davidoft

    davidoft Sponsor

    try adjusting the clutch cable, back it off a little
     
    Patrick Nguyen and F_Pantos like this.
  15. Clutch cable was fine. It fully engaged with correct free play and disengaged nicely. Never slipped either.
     
  16. Suspect noise could be clutch release bearing, right @davidoft ?

    You need to ensure the clutch isn't still partially engaged, even if just a baw hair, to eliminate this as a possible source of the noise.
     
    Lasty, dubsurftones and davidoft like this.
  17. davidoft

    davidoft Sponsor

    Wind it off a bit , to tight can load the bearing causing noisyness
     
  18. davidoft

    davidoft Sponsor

    Better to try the cheap things first
     
    Faust and snotty like this.
  19. ...and quite nasty chafing :eek:
     
    77 Westy and davidoft like this.

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