5B-12 - MID-SECTION
90-814676R1 DECEMBER 1996
Hydraulic System Troubleshooting
Support outboard with tilt lock lever when servicing
power trim system.
IMPORTANT: After debris or failed components
have been found (during troubleshooting proce-
dure) it is recommended that unit be disas-
sembled completely and ALL O-rings be re-
placed. Check ball valve components and
castings must be cleaned using engine cleaner
and compressed air or replaced prior to reas-
sembly.
IMPORTANT: Power trim system is pressurized.
Outboard must be in the full “UP” position (cylin-
der fully extended) prior to fill screw or manual
release valve removal.
Refer to instructions following if disassembly is re-
quired.
Follow preliminary checks before proceeding to trou-
bleshooting flow diagrams (following).
Preliminary Checks
IMPORTANT: Operate Power Trim system after
each check to see if problem has been corrected.
If problem has not been corrected proceed to
next check.
1. Check that manual release valve is tightened to
full right (clockwise) position.
2. Check trim pump fluid level with outboard in full
“UP” position and fill if necessary. Refer to “Fill
and Purge the Power Trim System”.
3. Check for external leaks in Power Trim system.
Replace defective part(s) if leak is found.
4. Outboard not holding tilted position (falls to trim
in position) indicates debris or defective compo-
nents in trim valve assembly. Clean or replace
components as required.
5. Check manual release valve for broken stem and
one O-ring remaining in the release valve pas-
sage. (Separate the manifold assembly from the
cylinder to dislodge broken stem.) Install new re-
lease valve and test system.
6. Check for nicked, deteriorated or misplaced O-
rings throughout trim system.
Leak Down Check – Pump and
Manifold Assembly
NOTE: Scribe (d) pump housing halves before disas-
sembly.
1. Debris or chips between valve and seat (a). Usu-
ally imbedded in rubber valve seat.
2. Nicked or deteriorated O-ring (b).
3. Nicked, deteriorated or misplaced O-ring be-
tween manifold and trim cylinder. Refer to “Man-
ifold Removal” for O-ring location.
51735
4. After reassembly, insert driveshaft and check
pump rotation resistance to turning – housing
halves can shift/turn during reassembly. Align
scribe marks (d) carefully.
Summary of Contents for 30 JET 40 (4 CYL)
Page 5: ...1 50332 IMPORTANT INFORMATION GENERAL INFORMATION and SPECIFICATIONS ...
Page 25: ...A 2 54637 ELECTRICAL AND IGNITION IGNITION SYSTEM ...
Page 51: ...B 2 ELECTRICAL AND IGNITION BATTERY CHARGING SYSTEM and STARTING SYSTEM ...
Page 69: ...C 2 54663 ELECTRICAL AND IGNITION TIMING SYNCHRONIZING ADJUSTING ...
Page 76: ...D 2 23891 ELECTRICAL AND IGNITION WIRING ...
Page 96: ...3 FUEL SYSTEM AND CARBURETION ...
Page 128: ...4 54727 POWERHEAD ...
Page 179: ...A 5 54738 MID SECTION CLAMP SWIVEL BRACKET AND DRIVE SHAFT HOUSING ...
Page 188: ...B 5 50158 MID SECTION POWER TRIM DESIGN 1 ...
Page 193: ...51638 5B 4 MID SECTION 90 814676R1 DECEMBER 1996 Power Trim Flow Diagrams Design 1 ...
Page 194: ...51637 90 814676R1 DECEMBER 1996 MID SECTION 5B 5 Design 1 ...
Page 195: ...51639 5B 6 MID SECTION 90 814676R1 DECEMBER 1996 Design 1 ...
Page 196: ...51640 90 814676R1 DECEMBER 1996 MID SECTION 5B 7 Design 1 ...
Page 197: ...51641 5B 8 MID SECTION 90 814676R1 DECEMBER 1996 Design 1 ...
Page 198: ...51642 90 814676R1 DECEMBER 1996 MID SECTION 5B 9 Design 1 ...
Page 199: ...51643 5B 10 MID SECTION 90 814676R1 DECEMBER 1996 Design 1 ...
Page 228: ...C 5 50158 MID SECTION POWER TRIM DESIGN II ...
Page 233: ...51644 5C 4 MID SECTION 90 814676R1 DECEMBER 1996 Power Trim Flow Diagrams Design II ...
Page 234: ...51645 90 814676R1 DECEMBER 1996 MID SECTION 5C 5 Design II ...
Page 235: ...51646 5C 6 MID SECTION 90 814676R1 DECEMBER 1996 Design II ...
Page 236: ...51647 90 814676R1 DECEMBER 1996 MID SECTION 5C 7 Design II ...
Page 237: ...51648 5C 8 MID SECTION 90 814676R1 DECEMBER 1996 Design II ...
Page 238: ...51649 90 814676R1 DECEMBER 1996 MID SECTION 5C 9 Design II ...
Page 239: ...51650 5C 10 MID SECTION 90 814676R1 DECEMBER 1996 Design II ...
Page 268: ...D 5 51486 MID SECTION POWER TRIM DESIGN 3 ...
Page 298: ...E 5 55331 MID SECTION POWER TRIM DESIGN 4 ...
Page 345: ...F 5 MID SECTION MANUAL TILT SYSTEM DESIGN I II III ...
Page 349: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 3 Manual Tilt Flow Diagrams Design 1 51651 ...
Page 350: ...5F 4 MID SECTION 90 814676R1 DECEMBER 1996 Design 1 51652 ...
Page 351: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 5 Design 1 51653 ...
Page 352: ...5F 6 MID SECTION 90 814676R1 DECEMBER 1996 Design 1 51654 ...
Page 353: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 7 Design 1 51655 ...
Page 354: ...5F 8 MID SECTION 90 814676R1 DECEMBER 1996 Manual Tilt Flow Diagrams Design 2 51656 ...
Page 355: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 9 Design 2 51657 ...
Page 356: ...5F 10 MID SECTION 90 814676R1 DECEMBER 1996 Design 2 51658 ...
Page 357: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 11 Design 2 51659 ...
Page 358: ...5F 12 MID SECTION 90 814676R1 DECEMBER 1996 Design 2 51660 ...
Page 359: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 13 Manual Tilt Flow Diagrams Design 3 51661 ...
Page 360: ...5F 14 MID SECTION 90 814676R1 DECEMBER 1996 Design 3 51662 ...
Page 361: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 15 Design 3 51663 ...
Page 362: ...5F 16 MID SECTION 90 814676R1 DECEMBER 1996 Design 3 51664 ...
Page 363: ...90 814676R1 DECEMBER 1996 MID SECTION 5F 17 Design 3 51665 ...
Page 383: ...G 5 MID SECTION MANUAL TILT SYSTEM DESIGN 4 ...
Page 420: ...A 6 50508 LOWER UNIT GEAR HOUSING ...
Page 450: ...JET DRIVE LOWER UNIT B 6 ...
Page 452: ...LOWER UNIT 6B 1 90 814676R1 DECEMBER 1996 Notes ...
Page 471: ...7 A 50331 OUTBOARD MOTOR INSTALLATION ATTACHMENTS OUTBOARD MOTOR INSTALLATION ATTACHMENTS ...
Page 496: ...B 7 50505 OUTBOARD MOTOR INSTALLATION ATTACHMENTS TILLER HANDLE AND CO PILOT ...
Page 510: ...C 7 54845 OUTBOARD MOTOR INSTALLATION ATTACHMENTS REWIND STARTER ...
Page 520: ...8 50444 OIL INJECTION SYSTEM ...
Page 523: ...50444 8 2 OIL INJECTION SYSTEM 90 814676R1 DECEMBER 1996 Oil Injection Flow System ...