TM 5-4320-300-14Table 5-1. Direct Support Troubleshooting-ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION3. ENGINE STARTS BUT RUNS UNEVENLY, STALLS, OR SURGESStep 1. Check for binding governor to injector operating linkage. Start engine. Watch the moving governorto injector operating linkage components while increasing and decreasing engine speed with thethrottle control.If components bind, adjust the governor linkages (para 5-15).Step 2. Check for mistimed injectors.Time injectors (para 5-12).Step 3. Check for faulty injectors. Remove and test injectors (para 5-12).Repair or replace faulty injectors (para 5-12).Step 4. Check for malfunctioning mechanical governor.Service or replace governor (para 5-15).4. ENGINE STOPS RUNNING OR PRODUCES BLACK, WHITE, OR GREY SMOKEStep 1. Check for faulty injectors. Remove and test injectors (para 5-12).Repair or replace faulty injectors (para 5-12).Step 2. Check for cracked suction line infuel tank. Loosen hose clamp andremove fuel supply hose from fuelcontrol valve at fitting. Removefuel control valve with suction linefrom fuel tank. Inspect suctionline.If line is cracked, bent, clogged, ordamaged, replace it (para 5-10).5-3
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