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UPPER GEAR CASE-DISASSEMBLY 

 
NOTE; The following instructions assume that the drive has been removed from the 
transom assembly and is shifted to the “neutral” position.  The lower unit has also been 
removed, along with the yoke coupler end, center socket, and cross and bearings.  Steps 
followed by asterisk (**) are required only if inspection indicates component replacement. 
Brackets following the part name represent the drawing figure # and item #. 
 

1.  Remove upper cap screws [1-7,8], remove upper cap [1-3]. 
2.  Remove steering cap screws [1-28], remove steering cap [1-2] 
3.  Remove detent kit from steering cap [1-31]. 
4.  Remove cotter key [2-23]. 
5.  Remove shift link [2-24], shift cable retainer [2-21], shift arm [2-22].  (Shift link     

removes out front of gear case).** 

6.  Remove shift shaft screws [2-27]. 
7.  Remove shift shaft plug [1-9], shift shaft [2-26], yoke & cam [2-28]. 
8.  Remove pinion hub screws [1-(22,23)]. 
9.  Remove pinion hub assembly [2-(31-45)]. 
10. Disassemble pinion hub assembly. 
11. Remove yoke nut [2-36], and washer [2-37]. 
12. Remove yoke [2-32].  
13. Remove retainer nut [2-31]. 
14. Remove Yoke gear end shims [2-42], pinion shoulder washer [2-43], and pinion 

seal carrier [2-45]. 

15. Remove bearings [2-(38,41)], bearing cups [2-(39,40)], and pinion gear [2-12]. 

Note; be sure to maintain correct assembly position of the upper & lower thrust 
bearings & races. 

16. Remove upper thrust race [2-6], and upper thrust bearing [2-7]. 
17. Remove gear assembly [2-(7-17)]. 
18. Disassemble gear assembly, press down on upper clutch gear to release the 

clutch shaft retainer keepers and remove all components from the clutch shaft. 

19. Remove lower thrust race [2-6], lower thrust bearing [2-7]. 
20. Remove oil tank cover [1-43], inspect magnet [1-40]. 

Page 1

Содержание Xtreme Advantage scX4

Страница 1: ...eight 9 SCX Drive is 19 7 8 from crankshaft center line to prop shaft center line 2 shorter than standard Bravo SCX4 Drive is 17 7 8 from crankshaft center line to propshaft center line 4 shorter than...

Страница 2: ...ted surfaces on the drive 22 When installing or changing propeller use extreme caution propeller blades can be very sharp 23 SCX upper vertical shaft is 17 tooth spline SC Merc lowers are 15 tooth spl...

Страница 3: ...X XXTREME ADVANTAGE sc scX4 X4 Parts and Service Manual IMCO 510 East Arrow Highway San Dimas CA 91773 800 899 8058 909 592 6162 Fax 909 592 6052...

Страница 4: ...Backlash Assembly Diagram 10 Lower Gear Case Disassembly 11 Lower Gear Case Drawing 12 Lower Gear Case Parts List 13 Lower Gear Case Assembly 14 Lower Pinion Height Measurments 15 Dissassembly Assemb...

Страница 5: ...ear case 6 Remove shift shaft screws 2 27 7 Remove shift shaft plug 1 9 shift shaft 2 26 yoke cam 2 28 8 Remove pinion hub screws 1 22 23 9 Remove pinion hub assembly 2 31 45 10 Disassemble pinion hub...

Страница 6: ...lack 1 01 1579 1A Upper Case Silver 1 01 1580 2 Steering Cap CA Black 1 01 1551 2A Steering Cap NV Black 1 01 1552 2B Steering Cap Generic Black 1 01 1553 2C Steering Cap ITS Black 1 01 1554 2D Steeri...

Страница 7: ...1 11 2129 18 Pinion Hub Shims Kit 01 2548 19 O Ring Pinion Hub 2 11 2161 20 O Ring Pinion Retainer Nut 1 11 2154 21 Pinion Hub 5 16 Copper Sealing Washers 10 08 120700004 22 Screw 5 16 18 x 1 Socket...

Страница 8: ...Page 4 Upper Case Gear Components Fig 2...

Страница 9: ...2561 21 SCX4 Shift Cable Retainer 1 01 2573 22 SCX4 Shift Arm 1 01 1578 23 Cotter Key 1 08 150200141 24 SCX4 Shift Link 1 01 1577 25 Shift Shaft Bushing 1 10 7018 26 SCX4 Shift Shaft 1 01 3559 27 Scr...

Страница 10: ...006 008 10 Once backlash is determined check upper clutch gear by placing gear in lower position with lower thrust race and backlash tower This will insure backlash is 006 008 is correct on upper gea...

Страница 11: ...Torque the 2 shift shaft screws 2 27 to 100 in lbs Use Loctite 262 on screws 24 Install quad ring 1 10 steering cap 1 2 including detent kit 1 31 insure O rings 1 29 1 30 are in place 25 Torque steeri...

Страница 12: ...Page 8 SCX Setup Diagrams Fig 3...

Страница 13: ...CL to Lower Thrust Seat Total H Norm 2 876 Bearing Thickness 0 157 Mounting Distance 2 659 Race Thickness J Norm 0 060 GEAR MEASURMENTS Gear One Measurement K1 Norm 2 091 Less Parallel 1 000 Gear Dept...

Страница 14: ...Backlash Assembly Fig 5 Page 10...

Страница 15: ...4 5 Remove bearing carrier thrust washer 6 28 bearing carrier shims 6 29 bearing carrier O ring 6 30 6 Align flats on prop shaft 6 27 to clear pinion gear nut 6 8 remove prop shaft 7 Remove pinion gea...

Страница 16: ...Lower Gear Case Fig 6 Page 12...

Страница 17: ...ear 1 10 2031 25 Bearing Cone Prop Gear 1 10 1030 26 Prop Gear 1 50 1 01 4564 26A Prop Gear 1 34 01 4566 26B Prop Gear 1 25 01 4598 27 Prop Shaft 1 7 16 1 01 3570 27A Prop Shaft 6 01 3446 28 Bearing C...

Страница 18: ...ned to accept pinion gear see page 11 pinion gear spud washer and nut Torque to 150 ft lbs 13 Temporarily install prop shaft 6 27 with bearing cone 6 31 bearing carrier thrust washer 6 28 bearing carr...

Страница 19: ...Lower Pinion Height Measurements Fig 7 Page 15 W 2 800 X Y Z...

Страница 20: ...ator Bracket 01 5588 C Pinion Gear Lock 01 5587 D Backlash Wand 01 5449 E Dial Indicator 01 5591 SCX4 Lower 1 Cover Nut Wrench Kit 01 5441 2 Cover Nut Wrench 6 Kit 01 5490 3 Lower Pinion Height Gauge...

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