Product Description

The Fairbanks Morse opposed-piston (OP) diesel engine — Model 38D 8-1/8 and related variants — was through World War II and the post-war decades one of the most consequential U.S. diesel engine designs. FM OP engines powered:

  • U.S. Navy fleet submarines (Gato, Balao, Tench classes) and post-war diesel-electric boats
  • Fairbanks Morse H-line and Trainmaster diesel-electric locomotives built through the 1950s
  • Commercial marine and industrial power-generation applications

The OP design used two crankshafts and two pistons per cylinder — with combustion between them — eliminating the conventional cylinder head. Sealing was accomplished through large compressed-asbestos-fiber gaskets at the airbox, exhaust manifold, and access covers, with asbestos-braided packing at various rotating and reciprocating interfaces.

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Fairbanks Morse OP diesels were specified through the asbestos era with:

  • Compressed asbestos-fiber (CAF) gaskets at airbox covers and exhaust manifold flanges
  • Asbestos gaskets at scavenging blower and turbocharger connections
  • Asbestos-braided packing at engine control and lubrication interfaces
  • Asbestos exhaust-manifold and turbocharger insulation in engine-room installations

Navy machinist mates and marine machinists were allegedly exposed to respirable asbestos fibers when scraping old gasket material during top-end overhauls in the confined engine spaces of fleet submarines.

Fairbanks Morse has been named as a Manufacturer Defendant in publicly filed U.S. asbestos personal-injury and wrongful-death litigation.

Workers Exposed

  • Navy machinist mates (MM) aboard fleet submarines with FM OP propulsion
  • Marine machinists on commercial vessels with FM OP diesels
  • Locomotive shop machinists rebuilding FM H-line and Trainmaster engines
  • Diesel mechanics at industrial power-plant installations
  • Shipyard workers at submarine overhaul and repair yards