Table 14-1.Fuel Injection Pump Troubleshooting Chart (Cont)MALFUNCTIONPROBABLE CAUSECORRECTIVE ACTIONDURING OPERATION (Cont)e.Maximum fuel setting ate.Adjust per paragraph 14-45.low limit or too low.2. Fuel reaching nozzlesf.Throttle arm travel notf.Check installation and adjust throttle linkage.but engine will notsufficient.(para 14-45)start. (Cont)g.Rotor badly scored.g.Replace hydraulic head and rotor assembly.(para 14-45)3. Engine starts hard.a.Transfer pump bladesa.Replace. (para 14-45)worn or broken.b.Delivery valve retainerb.Inspect delivery valve stop seat for erosion,screw loose and leakingtighten retainer screw, or replace heador incorrectly installed,and rotor assembly as needed. (para 14-45)c.Plungers sticking.c.Disassemble and inspect for burrs, corrosionor varnishes.(para 14-45)d.Metering valve stickingd.Check for governor linkage binding, foreignor closed.matter, burrs, etc. (para 14-45)e.Pump timed incorrectlye.Correct timing.(para 14-49)to engine.f.Excessive fuel leakagef.Replace rotor and hydraulic head assembly.past plungers (worn or(para 14-45)badly scored).g.Transfer pump faulty,g.Remove and inspect parts. (para 14-45)pressure too 10W.h.Cam, shoes or rollersh.Remove and replace. (para 14-45)worn.i.Automatic advancei.Remove, inspect, correct and reassemble,fault y or not operating.(para 14-45)j.Governor linkage out ofj.Adjust governor. (para 14-44)adjustment.k.Governor not operating;k.Disassemble, inspect parts, replace ifparts or linkage worn,necessary and reassemble. para 14-45)sticking or binding, orincorrectly assembled.1.Maximum fuel setting atl.Adjust pump per paragraph 14-48.low limit or too low.m. Shut-off device interferingm. Check and adjust governor linkage dimensions.with governor linkage.(para 14-45)n. Rotor badly scored.n.Replace hydraulic head and rotor assembly.(para 14-45)4. Engine starts anda.Failure of electricala.Remove, inspect and adjust parts. Replacestops.shut-off .parts as necessary.(para 14-46)14-33
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