Hercules Impco — 94E020000
Summary
THE ENGINE THROTTLE PLATE SHAFT CAN BECOME DISCONNECTED FROM THE THROTTLE LEVER ASSEMBLY. THE HEX HEAD LOCKING SCREW BETWEEN THE THROTTLE STOP ASSEMBLY AND THE THROTTLE SHAFT CAN LOOSEN. ALSO, THE HEX HEAD PINCH BOLT BETWEEN THE THROTTLE LEVER AND THE THROTTLE PLATE SHAFT CAN LOOSEN. THE THROTTLE RETURN SPRING CONTROLS THE THROTTLE PLATE POSITION THROUGH THE THROTTLE LEVER. IF EITHER SCREW LOOSENS, THE THROTTLE RETURN SPRINGS NO LONGER CONTROL THE THROTTLE PLATE POSITION.
Consequence
UNANTICIPATED FULL THROTTLE CONDITIONS CAN OCCUR,RESULTING IN A LOSS OF THROTTLE CONTROL AND POSSIBLE ACCIDENT.
Remedy
THE THROTTLE BODY HAS BEEN REDESIGNED TO INCLUDE A SECONDARY RETURN SPRING ATTACHED DIRECTLY TO THE THROTTLE PLATE SHAFT. THROTTLE STOP ASSEMBLY AND SECONDARY RETURN SPRING LOCKING SCREWS WILL BE TORQUED TO SPECIFICATION AND TREATED WITH A THREAD SEALING COMPOUND SPECIFICALLY DESIGNED FOR THREAD LOCKING APPLICATIONS.