Category Archives: Series 60

Detroit Series 60 12.7L Valve Adjustment Chart

Accurate adjustment of clearance between valve buttons, intake and exhaust valves is important if maximum performance and economy are to be obtained.‪  To ensure efficient engine performance and extended valve and injector service life, an initial valve lash and injector height measurement/adjustment requirement has been established. ‪ Effective immediately, the valve lash and injector heights… Read More »

Series 60 – Cleaning the Cylinder Block

Before removing cylinder liners for block cleaning, the liner bores should be gaged to determine whether liner replacement is necessary. Refer to section 1.23.2.2. Remove cylinder liners with the cylinder liner removal tool (J–45876) before putting the block in cleaning or descaling baths, to avoid trapping cleaning agents in block liner seating bores. See Figure… Read More »

Series 60 – CYLINDER BLOCK AND CYLINDER LINER

The cylinder block is the basic engine structure, establishing and maintaining the alignment of all engine working parts. In the Series 60 Engine, the cylinder bores are not an integral part of the block casting, but are in the form of replaceable, wet type cylinder liners. See Figure 1-1. Flanges at the liner upper ends… Read More »

Series 60 – DDEC V

The DDEC V ECU receives electronic inputs from sensors on the engine and vehicle, and uses the information to control engine operation. It computes fuel timing and fuel quantity based upon predetermined calibration tables in its memory. DDEC V provides an indication of engine and vehicle malfunctions. The ECU continually monitors the DDEC V system.… Read More »

Series 60 – DDEC III/IV (Series 60G Engine)

The DDEC III/IV ECM receives electronic inputs from sensors on the engine and vehicle, and uses the information to control engine operation. Fuel is controlled by DDEC. See Figure 6. Portable equipment facilitates access to diagnostic capabilities of DDEC III/IV’s. The Diagnostic Data Reader (DDR) requests and receives engine data and diagnostic codes. This equipment… Read More »