1977–1979 Mack Mr Recall

TRUCKS EQUIPPED WITH MACK ENDT (B) 676, ETAZ (B) 673A AND ETAY (B) 673A ENGINES WITH AIRESEARCH TV6103 TURBO-CHARGERS. IN SOME INSTNACES OF TURBOCHARGER COMP[RESSOR WHEEL FAILURE THE CAPSCREWS RETAINING THE COMPRESSOR BACK PLATE MAY BE STRUCK BY PART OF THE COMP-RESSOR WHEEL. HTIS CAN RESULT IN THE CAPSCREWS BEING STRETCHED OR SHEARED, ALLOWING THE BACKPLATE TO DISLOCATE AND PRESSURIZED ENGINE OIL TO CONTACT THE HOT TURBOCHARGER TURBINE HOUSINGS AND/OR ENGINE EXHAUST MANIFOLD SECTIONS, THUS CREATING A POTENTIAL FOR ENGINE COMPARTMENT FIRE.

MACK MR