Measure the intake manifold pressure (turbocharger boost). Install pressure gauge, Part No. ST-1273, in the intake manifold as shown. Observe the reading on the pressure…

Use Pressure Gauge, Part No. ST-1273, to measure fuel drain line restriction. NOTE: Do not measure fuel drain line restriction with the fuel measuring device…

Measure the fuel inlet restriction. Install a vacuum gauge, Part No. ST-434, between the fuel pump inlet and the gear pump inlet. NOTE: Do not…

Use fuel measuring device, Part No. 3376375, to measure the rate of fuel consumption. Install the fuel measuring device as follows: • The fuel return…

Measure the fuel pressure on STC engines. Install the pressure gauge, Part No. ST-435-6, or the pressure gauge in the fuel measuring device, Part No.…

Use digital optical tachometer, Part No. 3377462, to check and verify engine speed.  

Check the engine coolant level to be sure it is filled to the proper level. Warning: Check the coolant level only when the engine is…

The performance of an engine installed in ‘‘on-highway’’ vehicles can be tested on a chassis dynamometer. NOTE: Due to driveline inefficiencies and engine-driven accessories, the…

Measurements from these indicators and gauges must be observed closely during all phases of the engine run-in period. Engine measurements taken are: • Engine speed…

To reduce engine cranking time, prime the fuel supply pump. NOTE: If the fuel supply pump is dirty, clean the outside of the pump near…