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Trip Rocker Arm Weldment

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  • Trip Rocker Arm Weldment

    Been having a distributor sporadically causing pin jams on the belt. Looks like once in a while it is not extending properly. It has new Sthals Distributor Tubes and eccentric bearings and a new trip arm weldment. While looking for something rubbing noticed the welds on the pins for the rollers on the trip rocker arm stuck out 1/8". Just ground them down and reinstalled. Is this enough to stop extension once in a while? Is this why before me someone bent some rocker arms toward the trip arm? Is this another case of someone manufacturing bad parts?
    Well we're safe for now. Thank God we're in a Bowling Center.

  • #2
    Re: Trip Rocker Arm Weldment

    You might need to put flat washers behind the bracket that the trip arm bolts to behind the clutch.

    Just space it out enough to have clearance.

    It is also possible to bend the bracket to align the stop blade to the clutch properly.

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    • #3
      Re: Trip Rocker Arm Weldment

      I have used both methods that King mentioned. I have also put a washer behing both of the rear carrage rollers moving the entire assembly away from the index cam.

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      • #4
        Re: Trip Rocker Arm Weldment

        Intermittent extension problems are usually caused by:

        Eccentric rollers a tad to tight or extremely to loose
        Clutch dirty, out of adjustment or gummed up gear race
        Improper belt length (usually to long)
        Flat nylon rollers causing belt drift and not riding true at all positions causing rubbing
        Bent or gummed up tubes

        Triac

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        • #5
          Re: Trip Rocker Arm Weldment

          Just something else to check - The front bolt that holds the O-Pan needs to be a button socket head with a washer. If it is a hex head, sometimes it will catch your rocker arm rollers.

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