Detroit Diesel Troubleshooting Diagrams

The oil pan used on the Series 60 engine is made of plastic (epoxy vinyl ester) or aluminum. For engines built after April 1999, a one-piece bolt assembly is used with the improved plastic front sump and rear sump oil pans and a new isolator seal. The new isolator seal is reusable.

A steel ribbon-type oil level dipstick may be used to check the level of oil in the engine oil pan. The dipstick is located in a tube attached by a threaded adaptor to an opening in the oil pan.

A dual spin-on lube oil filter adaptor assembly with a temperature-sensitive thermatic oil control valve is available on Series 60, 11.1L low compression (15:1) industrial and automotive engines and certain 12.7L engines.

The oil filter adaptor is located on the right side of the engine and is attached to the oil cooler. ‪

The 1991 and later engines have a separate oil filter bypass adaptor.

Two full-flow type lubricating oil filters are used on current Series 60 engines. The oil filters are mounted in a downward position. The filters are throw away, spin-on type. Prior to 1993 the Series 60 engines also had a bypass filter.

Oil supplied by the engine oil pump passes through the full-flow filters before reaching the various moving parts of the engine. The oil is forced by pump pressure through a passage in the filter adaptor and into the elements. Impurities are filtered out as the oil passes through the elements and out through another passage in the filter adaptor.

Certain pleasure craft marine engines use a single, high capacity, remote-mounted lubricating oil filter. When installed, adaptor plates drilled and tapped for hose connections are used to seal the spin-on filter openings in the engine-mounted oil filter adaptor.

The oil pressure regulator valve consists of a valve body, a hollow, piston-type valve, a spring, a spring seat and a pin to retain the valve assembly within the valve body.

The valve is held on its seat by the spring, which is compressed by the pin in back of the spring seat. The entire assembly is bolted to the lower flange of the cylinder block and sealed against leaks by a gasket between the block and valve body. When conditions are such that the oil pressure at the valve exceeds 310 kPa (45 lb/in. ² ), the valve begins to be forced from its seat and oil from the engine gallery is bypassed to the engine oil pan. Thus, stable lubricating oil pressure is maintained at all times. ‪

An oil pressure regulator valve maintains stable lubricating oil pressure within the engine, regardless of the oil temperature. Oil leaving the pump under pressure passes into the pressure relief valve body. The valve is installed in the end of a vertically drilled passage in the cylinder block, located on the oil cooler (right) side of the block, that connects with the main cylinder block oil gallery.

The drive gear is pressed on the drive shaft, which is supported inside the housing on two bushings. The driven gear is pressed on the driven gear shaft, which is supported inside the housing on two bushings. ‪

The gear-type oil pump is mounted to the cylinder block and is gear driven from the front end of the crankshaft.