2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 331Get this manual
Gear pump Checking the gear pump
1Check the drive gear CD, driven gearand shaft for damage or excessive wearReplace if necessary7Install the gear pump bracket by installing the boltsthen tightening them to the specified torque
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Assembling the gear pump
1Install the drive gear CD, driven gearshaftand pins into the gear pump housing Install the balls housing
Gear pump bracket bolt5.3 Nm (0.53 kgfm, 3.8 ftlb) 8Install the down-relief valveup-relief valve ), and filter Install the relief valve bracket by installing the bolts ), then tightening them to the specified torqueinto the gear pumpInstall the down-main valve (J) and upmain valve Install the gear pump cover5