Black or gray smoke caused by excessive fuel

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Black or grey smoke observed (Cont).

TM-55-1905-219-14-3 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

Black or gray smoke caused by improper grade of fuel

TM 55-1905-219-14-3

Table 3-22. Generator Engine - Exhaust Smoke Analysis

Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. Black or gray smoke caused by excessive fuel or irregular fuel distribution.

Step 1. Check for improperly timed injectors and improperly positioned injector rack

control levers.

Time the fuel injectors. Refer to paragraph 3-87.

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