HomeRepair guidesChecking nozzle alignment:

Detroit Diesel — Checking nozzle alignment:

A Detroit Diesel service procedure — check it applies to your exact model before use.

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Procedure

  1. 1. Install engine barring tool J-46392 or J-46167.
  2. 2. Rotate crankshaft while inspecting nozzle.
  3. 3. As piston reaches BDC check the alignment of the nozzle to the piston. The nozzle tip will enter the oil galley in the piston. (See Figure 2).
  4. 4. Continue checking remaining cylinders.

Source: manual:05ts55Rev2.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.