Troubleshooting Problem
Possible Cause
Remedy
Direction of engine rotation does not agree with arrow Replace with LH rotation engine. on transmission
No shifting pressure
No fluid in transmission
Refill with fluid.
Fluid filter is dirty
Replace fluid filter.
Transmission fluid level is too low
Fill with fluid; check the transmission, fluid cooler, and fluid hoses for leaks. See Fluid leakage at input shaft, Fluid leakage at output shaft, Fluid leakage at venting filter, Fluid leakage at joints or screw connections.
Fluid pump is worn out
Replace control block together with fluid pump.
Fitting key in input shaft for Remove control block. Replace fitting key and any fluid pump drive is broken other faulty parts. Shifting pressure relief valve Replace control block. spring is broken Excessive fluid in transmission
Remove excessive fluid with commercial fluid pump.
Fluid cooler is dirty on water Remove coolant lines and clean fluid cooler on side water side. Worn fluid pump in control block Faulty piston rings in input shaft in control block Excessive fluid temperature Clutch is slipping
Replace control block and fluid pump. Remove control block, replace piston rings in input shaft. Check control block and replace if damaged from faulty piston rings. See Clutch is slipping; propeller speed too low as compared to engine speed.
Clutch does not open completely due to worn clutch discs
Dismount transmission and (or;) replace inner disc all faulty parts.
Clutch does not open completely due to broken clutch cup springs
Disassemble transmission and (or;) replace inner disc support and/or clutch.
Low water flow from seawater pump
Repair or replace seawater pump.
Fluid cooler faulty
Repair leakage at cooler or replace cooler and replace cooler.
Water in fluid or fluid looks High water level in engine milky Remedy cause for water level in engine compartment, water compartment and (or;) change transmission fluid. entering at output shaft seal Fluid leakage at input shaft
Fluid leakage at output shaft Fluid leakage at venting filter Fluid leakage at joints or screw connections
Breather clogged by paint or Remove dirt or paint from breather. dirt Shaft seal faulty
Disassemble transmission and (or;) replace seal. If seal location on input shaft is worn repair surface.
Breather clogged by paint or Remove dirt or paint from breather. dirt Shaft seal faulty
Disassemble transmission and (or;) replace seal. If seal location on input shaft is worn repair surface.
Excessive fluid in transmissio
Pump out excessive fluid with commercial hand pump.
Bolts are not tight
Tighten bolts to specified torque.
Seals on bolts have been reused several times
Replace seals. Tighten bolts to specified torque.
CMD-4082040 / 90-866941 NOVEMBER 2007
Page 1C-19