THE ONE-WAY VALVE IN THE STEERING DAMPERS IS USED TO CONTROL THE HYDRAULIC OIL FLOW SO THAT THE OIL VOLUME
— Recall Campaign #94E014000
THE ONE-WAY VALVE IN THE STEERING DAMPERS IS USED TO CONTROL THE HYDRAULIC OIL FLOW SO THAT THE OIL VOLUME INSIDE THE STEERING DAMPER EXPANDS WITH TEMPERATURE. THE VALVE SEAT CAN BECOME DEFORMED DURING USE, CAUSING UNCONTROLLED RESTRICTION OF THE OIL FLOW. THE DEFORMED VALVE CAUSES THE INTERNAL PRESSURE ON THE DAMPER OILS SEALS TO INCREASE FROM INCREASED OIL TEMPERATURE AND VOLUME EXPANSION.
The recall was influenced by the manufacturer with about 491 units affected.
NHTSA Safety Recall Notice
94E014000
| Manufacturer: | Ohlins Racing AB |
|---|---|
| Recall date: | May 16, 1994 |
| NHTSA Campaign #: | 94E014000 |
| Units affected: | 491 |
- Description:
- THE ONE-WAY VALVE IN THE STEERING DAMPERS IS USED TO CONTROL THE HYDRAULIC OIL FLOW SO THAT THE OIL VOLUME INSIDE THE STEERING DAMPER EXPANDS WITH TEMPERATURE. THE VALVE SEAT CAN BECOME DEFORMED DURING USE, CAUSING UNCONTROLLED RESTRICTION OF THE OIL FLOW. THE DEFORMED VALVE CAUSES THE INTERNAL PRESSURE ON THE DAMPER OILS SEALS TO INCREASE FROM INCREASED OIL TEMPERATURE AND VOLUME EXPANSION.
- Consequeces:
- THE DEFORMED VALVE SEAT CAUSES INCREASED FRICTION FORCECAUSING VERY HARD DAMPING, AND COULD, IN A SEVERE CASE, CAUSE LOSS OF STEERINGCONTROL AND AN ACCIDENT.
- Corrective action:
- THE ONE-WAY VALVE WILL BE REPLACED.
- Notes:
- SYSTEM: STEERING: YOKE (MOTORCYCLE).EQUIPMENT DESCRIPTION: STEERING DAMPERS USED ON MOTORCYCLES; PART NOS. SD 1001,SD 1002, SD 2000, SD 2002.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPONSERVICE DATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREEOF CHARGE, OR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASECONTACT NOLEEN RACING AT 1-619-246-5000. ALSO, CONTACT THE NATIONAL HIGHWAYTRAFFIC SAFETY ADMINISTRATION AT 1-800-424-9393.