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

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Black or grey smoke

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

Black Improper grade of fuel

TM 55-1905-219-14-3

Table 3-59. Anchor Winch Engine Exhaust Smoke

Analysis Troubleshooting (Cont).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

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 3-161.

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