Air assist clutch question

Discussion in 'Volvo Forum' started by 6cuda6, Oct 18, 2020.

  1. 6cuda6

    6cuda6 Light Load Member

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    Question...if you hold your clutch pedal anywere in the travel or even just lightly put pressure on it should you hear air leaking? (Inder the truck not inside)

    I know it needs to vent when releasing the pedal but what about going the other way....
     
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  3. AModelCat

    AModelCat Road Train Member

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    You'll hear air going to the actuator but it should stop after a few seconds. If its leaking there's an issue.
     
  4. 6cuda6

    6cuda6 Light Load Member

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    So just to be clear....if i push the pedal half way down and hold it in that position i should hear air as i apply but it should stop basically as the pedal stops/holds.....correct?
     
  5. AModelCat

    AModelCat Road Train Member

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    From what I remember, yes.
     
  6. 86scotty

    86scotty Road Train Member

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    You have a Volvo with a clutch pedal?
     
  7. 6cuda6

    6cuda6 Light Load Member

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    Yes imagine that.....someone who can actually drive a manual transmission.
     
  8. 6cuda6

    6cuda6 Light Load Member

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    Anyone ever rebuild the air portion of the servo? If you have do you remember the rebuild kit #? I suspect its no more than a few "o" rings like a purge valve?
     
  9. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    There is no kit to purchase. Have never tried to take apart and repair. Can't be that complicated I would guess.
     
  10. 6cuda6

    6cuda6 Light Load Member

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    Agreed....was just hoping someone knew of a repair kit before i dug into it.
     
  11. AModelCat

    AModelCat Road Train Member

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    I deal a lot with hydraulic component rebuilds and some of it is really oddball stuff with next to no parts availability. Sometimes we take old seals and o-rings to a specialty hydraulics shop and they reproduce the seals and such for us. Can't see why they couldn't do that for your air cylinder. Only catch is they need all the old seals and possibly measurements from the component. A lot of times their seals and o-rings are cheaper than buying an OEM seal kit.
     
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