Bent valve

Discussion in 'Softail Models' started by CRAZYDAVE, Mar 23, 2010.

  1. CRAZYDAVE

    CRAZYDAVE Member

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    Is it possible to bend a valve if you set timing off on a 88b motor
     
  2. Bud White

    Bud White Well-Known Member Retired Moderators

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    its possible in anymotor
     
  3. CRAZYDAVE

    CRAZYDAVE Member

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    How do you know if you have a bent valve
     
  4. kemo

    kemo R.I.P

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    Engine will run rough and have a miss. The cyl with bad valve will have low compression.
    kemo
     
  5. CRAZYDAVE

    CRAZYDAVE Member

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    How do you bend a valve
     
  6. Chopper

    Chopper Senior Member

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    How did you change the timing on a TC? A compression test would be a simple test to tell if the vales seating or not, if it's bent it won't seat. If the valve stuck, the piston could hit the valve and bend it.
     
  7. jdaws

    jdaws Active Member

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    If it is cam timing, Then yes you can bend a valve
    If it is ignition timing then no.
    What makes you say timing?
    Did you just do some work to it?
    Please give more info!
     
  8. CRAZYDAVE

    CRAZYDAVE Member

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    yes I TOOK OUT THE CAMS TO CHECK THE TENSION SHOES SET THE MARKS ON THE CAM AND CRANK AND IT RAN ROUGH AND POPPED THROUGH THE CARB
     
  9. Chopper

    Chopper Senior Member

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    You might of just got the marks off, have you checked them? Are the push rods adjusted right?
     
  10. kemo

    kemo R.I.P

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    What kind of pushrods are you using. Did you cut the p/r's and replace with adjustable p/r's or did you remove the rocker boxes and rockers. Did you allow the lifters to bleed down.
    kemo