NHTSA Recall 79V133000
NHTSA Campaign Id 79V133000; Date: May. 31, 1979
Recalled Vehicles:
1977 Mack DM; 1978 Mack DM; 1979 Mack DM; 1977 Mack DMM; 1978 Mack DMM; 1979 Mack DMM; 1977 Mack F; 1978 Mack F; 1979 Mack F; 1977 Mack MC; 1978 Mack MC; 1979 Mack MC; 1977 Mack MR; 1978 Mack MR; 1979 Mack MR; 1977 Mack R; 1978 Mack R; 1979 Mack R; 1977 Mack RD; 1978 Mack RD; 1979 Mack RD; 1977 Mack RL; 1978 Mack RL; 1979 Mack RL; 1977 Mack RM; 1978 Mack RM; 1979 Mack RM; 1977 Mack RS; 1978 Mack RS; 1979 Mack RS; 1978 Mack RWL; 1979 Mack RWL; 1977 Mack RWS; 1978 Mack RWS; 1979 Mack RWS; 1977 Mack U; 1978 Mack U; 1979 Mack U; 1977 Mack WL; 1978 Mack WL; 1979 Mack WL; 1977 Mack WS; 1978 Mack WS; 1979 Mack WS
Component: Engine And Engine Cooling:engine
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 23,000
Recall Summary:
In the event of turbocharger compressor wheel failure, one or more of the four capscrews that hold the turbocharger together may be struck by parts of the compressor wheel, resulting in the capscrews being damaged. If these capscrews are damaged to the point that they allow the compressor back plate to dislocate from the turbocharger bearing housing, engine lubricating oil may be allowed to escape under pressure, contacting the engine exhaust manifold sections or turbocharger turbine housing.
How to Fix:
Dealer will install a shield for the heads of the four capscrews, along with stronger sae 8 grade 8 capscrews, if necessary, at no cost to owner.
Recall Notes:
Vehicle description: trucks equipped with endt (b) 676, etaz (b) 673a, and etay(b) 673a engines. System: engine and engine cooling. Consequences of defect: engine lubricating oil, in the presence of a source ofignition, could lead to an engine compartment fire and serious injury tovehicle passengers.
Date Owners notified by Manufacturer: Nov 2, 1979
Also see: