Series 50 – Section 25.9 Incorrect Camshaft Timing

Section 25.9
Incorrect Camshaft Timing

To determine if incorrect camshaft timing is causing lack of power, perform the following:‪

1. Check the camshaft timing; refer to "1.22.6.1 Test of Camshaft Timing on Diesel Engines" .
   1. If the dial indicator reading is within 0.173-0.215 in., no further troubleshooting is required.
   2. If the dial indicator reading is not within 0.173-0.215 in., check engine timing; refer to "25.9.1 Engine Timing Resolution" .

Section 25.9.1
Engine Timing Resolution

Perform the following steps to resolve incorrect engine timing:‪

1. Perform an engine gear train timing check; refer to "1.21.2.1 Check Engine Timing" .
2. Verify engine timing resolution; refer to "25.9.1.1 Test Engine with Correct Timing" .

Section 25.9.1.1
Test Engine with Correct Timing

Perform the following steps to determine if corrected engine timing resolved lack of power condition: ‪

1. Start and run the engine.
2. Test drive the vehicle to ensure lack of power has been resolved.
   1. If no lack of power occurred during the test drive, no further troubleshooting is required. Shut the engine down.
   2. If lack of power occurred during the test drive, shut the engine down. Call the Detroit Diesel Technical Service Group.