Clutch

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Mr Bob, Oct 26, 2023.

  1. Mr Bob

    Mr Bob Light Load Member

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    typical 2 disc pull clutch. wont go in gear with engine running. Clutch brake is intact. engine off in gear, start engine with clutch pressed half way. release clutch and it acts normal. press clutch down to clutch brake and truck moves forward as if clutch is being released. what the heck is going on?
     
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  3. jamespmack

    jamespmack Road Train Member

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    Do you have a 1/4" between release fingers and bearing? Have you tried rotating clutch brake by hand, to check if the tangs are broken off?
     
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  4. jamespmack

    jamespmack Road Train Member

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    Also I apologize, I'm trying to understand what your describing.
     
  5. Mr Bob

    Mr Bob Light Load Member

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    tangs are there. i know this sounds real goofy. ive never seen it before.
     
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  6. JB7

    JB7 Heavy Load Member

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    "wont go in gear with engine running" Clutch is not fully releasing. May be a weak pressure plate, broken springs, a sticking intermediate plate. If adjusted properly then the trans needs to come out to inspect and replace the clutch. First check the cable or linkage. Also, with the bottom plate off have someone press in on the clutch and look to see if the bearing is contacting the clutch brake.
     
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  7. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    Sounds like those “Self-adjusting” clutches. I threw mine away when I had the transmission gone thru.
     
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  8. Mr Bob

    Mr Bob Light Load Member

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    manual adjust
     
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  9. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    How about a pic @Mr Bob, from the inspection plate looking up towards the throw out bearing?
     
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  10. jamespmack

    jamespmack Road Train Member

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    Damper springs broken and stuck between clutch discs
     
  11. jamespmack

    jamespmack Road Train Member

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    Put your fingers down in bottom of housing in the crud. Probably gonna find some pieces.
     
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