Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 202Get this manual
CAUTION Sealant (Special Tool NoT 8983) around forward stud is needed to keep water from getting to area sealBApply sealant around rear studinstall washer and nut
3Check pressure as follows:
CAUTION
Do not apply more than 10 p.s.ito housingThis can damage seals APressurize housing to 10 p.s.i BWatch gauge forone minutePressure should not dropCIf pressure drop is notedimmerse housing in waterRepressu rize to 10 p.s.iand observe for ai bubbles DWhen pressure holds for one minute, remove tester, replace vent plug
CAUTION
Sealant around rear stud is needed to keep air from leading into water inlet passage CTorque nuts to 270 in Ibs(310 kg cm) 4Install water pump to upper gear housing as outlined in this section 5Install gear housing to motor legas outlined in this section