TM 5-4320-302-14Table 5-1. Direct Support Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION3. ENGINE STARTS BUT RUNS UNEVENLY, STALLS, OR SURGESWARNINGPriming discharge mixture of water and exhaust gases maycause severe burns or injury. Wear gloves and safety glasseswhen priming pump.Stand clear of venturi during priming.CAUTIONPrime the centrifugal pump as soon as possible after enginestarts. Rotation of impeller without water in volute willdamage pump components.Step 1. Check for binding speed control lever arm or throttle cable assembly. Startengine. Watch the moving speed control lever arm while increasing and decreasingengine speed with the throttle cable assembly T-handle.If components bind, repair or replace throttle cable assembly (para 4-16).Step 2. Check for mistimed injectors.Time injectors (para 6-4).Step 3. Check for faulty injectors. Remove and test injectors (para 5-16).Repair or replace faulty injectors (para 5-16).5-3
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