1978 MACK WS RECALL - #78V170000
RECALL FOR ENGINE AND ENGINE COOLING : ENGINE
THE POSSIBILITY EXISTS THAT THE ALUMINUM ENGINE REAR SUPPORT BRACKETS MAY FAIL DUE TO METAL FATIGUE. THIS TYPE OF FAILURE WOULD ALLOW THE ENGINE AND TRANSMISSION ASSEMBLY TO DISLOCATE DOWNWARD. THIS WILL RESULT IN THROTTLE CONTROL LOSS WITH THE ENGINE OPERATING CONTINUOUSLY IN THE MID TO UPPER RANGE OF THE GOVERNED SPEED RANGE.
Information provided by the National Highway Traffic Safety Administration.
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| Vehicle |
1978 MACK WS |
|
| Manufacturer |
MACK TRUCKS, INCORPORATED |
| Manufactured between |
1/1/1900 - 1/1/1900 |
| Recalled on |
10/12/1979 |
| Influenced by |
MACK TRUCKS, INCORPORATED |
| Owners Notified on |
12/4/1978 |
| # Affected |
850 |
| Recalled for |
ENGINE AND ENGINE COOLING:ENGINE |
|
|
| Description |
THE POSSIBILITY EXISTS THAT THE ALUMINUM ENGINE REAR SUPPORT BRACKETS MAY FAIL DUE TO METAL FATIGUE. THIS TYPE OF FAILURE WOULD ALLOW THE ENGINE AND TRANSMISSION ASSEMBLY TO DISLOCATE DOWNWARD. THIS WILL RESULT IN THROTTLE CONTROL LOSS WITH THE ENGINE OPERATING CONTINUOUSLY IN THE MID TO UPPER RANGE OF THE GOVERNED SPEED RANGE. |
| Consequences |
|
| Corrective action |
DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALUMINUM SUPPORT BRACKETS WITH BRACKETS MADE FROM DUCTILE IRON FOR INCREASED STRENGTH. |
| Notes |
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: ENGINE; ENGINE MOUNTING BRACKET.CONSEQUENCES OF DEFECT: LOSS OF THROTTLE CONTROL MAY RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT. |
| See also |
1978 MACK WS Recall for SERVICE BRAKES, AIR, SUPPLY, HOSES, LINES/PIPING, AND FITTINGS
1978 MACK WS Recall for SERVICE BRAKES, AIR, ANTILOCK, INTERCONNECTING ASSEMBLY(WIRING)
1978 MACK WS Recall for ENGINE AND ENGINE COOLING, ENGINE
1978 MACK WS Recall for STEERING, LINKAGES
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