Chrysler 75 and 85 HP Outboards Service Manual OB 3646, Page 194Get this manual
Problem
Possible Cause
Test Procedure
4D Recheck oil level in reservoir as outlined in this section3Leak between trim cylinder piston and shaft1Disconnect lower hydraulic tilt cylinder line from pump section Figure 7
This eliminates tilt unit from test2Install pressure gauge (0-2000 PSI) or pipe plug in hole where line was removed Install cap plug on end of tilt cylinder line Figure 8Lift engine using trim cylinder3AA pressure gauge will show pressure at firstIf pressure starts to drop, there is leak in the trim unit of valve body and pump 3B If pipe plug was installedwatch for gradual decline in motor angle This means leak in the trim unit or valve body and pump 4If no leakage, proceed to next cause If leakage notedproceed as followsRemove pressure gauge or pipe plug and reinstall tilt line