SCX to SC SERVICE MANUAL
Contents
1. 16 Check Oil Before Running First break in oil change 5 8 hours Oil is filled to upper drain screw Fig 1 33 Pump oil from bottom drain screw Fig 6 32 Recommended oil change intervals 20 30 hours Heavy use or high HP change more often Serial Number Date of Purchase Purchased From 02 15 10 Rev 1 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 Remove upper cap screws 1 7 8 remove upper cap 1 3 Remove steering cap screws 1 28 remove steering cap 1 2 Remove detent kit from steering cap 1 31 Remove cotter key 2 23 Remove shift link 2 24 shift cable retainer 2 21 shift arm 2 22 Shift link removes out front of gear case Remove shift shaft screws 2 27 Remove shift shaft plug 1 9 shift shaft 2 26 yoke amp cam 2 28 Remove pinion hub screws 1 22 23 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 Rem2. 2 17 allowing it to rest on the thrust collar Place the lower clutch spring thrust bearing 2 14 silver side up lower clutch spring 2 15 clutch cone 2 16 upper clutch spring 2 15 upper clutch spring thrust bearing 2 14 Note use a thin layer of grease between the bearing and the gear to keep bearing in place during assembly silver side down upper clutch gear 2 13 clutch shaft retainer 2 9 onto the upper clutch shaft 2 17 Compress the upper clutch gear and install the upper drive shaft retainer keepers 2 8 Install complete clutch shaft assembly into gear case Align the clutch gear timing marks over or over with the center of the rear face of the gear case Install pinion pack with O ring 1 19 and shims 2 18 shims must be properly aligned Torque pinion pack screws 1 22 23 important make sure copper sealing washers 1 21 are in place short screws in 2 top holes amp 2 bottom holes 1 22 longer screws in port amp 3 starboard holes 1 23 to 20 ft lbs Use Loctite 242 on all screws Note make sure that the clutch gear timing marks align to case timing marks roll pinion to check Page 6 20 21 22 23 24 25 26 27 28 29 UPPER GEAR CASE ASSEMBLY Place the shift yoke amp cam assembly 2 28 into the clutch cone groove with the nuts facing down Insert the shift link 2 24 with shift cable retainer 2 2
3. When changing oil run the used oil through a strainer to check for metal particles if ther are metal particles in the oil it is time for inspection of the gears and bearings If oil appears milky or off colored check for leaks SCX SCX4 capacity 5 qts reservoir SCX Upper with SC Lower 4 1 2 qts reservoir New Break in After Break In SCX Upper amp SCX Lower s hours New Break in After Break In New Break in Check Drain Plug Magnet et ee ot 20 hours Every 20 Hours 19 Drive must be turning before shifting 20 Do not run engine when drive is trimmed extremely high or in trailer tow mode 21 Do not use solvents or chemical cleaners to clean painted 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 spline A 17 15 tooth coupler is available 01 2150 cannot be used with a spacer 24 Use extreme caution if modifying lower case can be weakened or handling can be adversely affected 25 Break in Do not use full throttle until drive is fully warmed up do not hold drive at wide open throttle for more than 2 minutes for the first 3 hours of use 26 Inspect anode located on front of cavitation plate for corrosion or debris if necessary clean or replace 27 Do not shift drive while running on hose with propeller installed 28 Rotation shift linkage
4. 11 12 13 14 15 16 17 18 Take all measurements using the SCX Setup Diagrams Fig 3 and the SCX Work Sheet Fig 4 After all measurements are taken and proper race thickness has been determined place lower race 2 6 and thrust bearing 2 7 in case Place lower clutch gear 2 13 with attached tool backlash tower 01 5579 into case Adjust rolling preload 8 10 in Ibs on pinion gear by changing Yoke Gear End Shims 2 42 Tighten nut 2 36 to 75 ft Ibs After proper rolling preload is determined assemble pinion pack with pinion retainer nut O ring 1 20 between pinion seal carrier 2 45 and retainer nut 2 31 Torque retainer nut to 200 ft lbs Tool Pinion Retainer Nut Driver 01 5590 torque wrench centered on retainer nut or if using longer tool be sure to compensate on torque value Use new lock nut 2 36 and torque to 75 ft Ibs Install pinion pack using 4 screws 1 23 for testing Install dial indicator indicator bracket 01 5588 and pinion gear locking tool pinion gear lock 01 5587 Fig 5 Check backlash adjust backlash with pinion hub shims 2 18 average backlash should be 006 008 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 gear Assemble drive shaft gear assembly 2 8 17 Place the lower clutch gear 2 13 onto the clutch shaft
5. 5409 Prop Gear Cup Puller 01 5410 Bearing Carrier Cup amp Seal Installer 1 14 01 5411
6. 876 Pinion CLto Lower Thrust Seat H Nom 2 876 Upper Thrust Seat to Lower Thrust Seat Total P Norm 5 752 Gear Assembly Total O Nom 5 778 Cap Crush Page 9 Nom 020 030 Backlash Assembly Fig 5 01 5587 Pinion Gear Lock 01 5579 Backlash Tower 01 5549 Backlash Wand 01 5588 Dial Indicator bracket 01 5591 Dial Indicator Page 10 LOWER GEAR CASE DISASSEMBLY Note The following instructions assume that the lower unit has already been separated from the upper gearhead Steps followed by asterisks are required only if inspection indicates component replacement Brackets following the part name represent the drawing figure and item 1 2 3 4 Bend the tabs of the bearing carrier tab washer 6 31 away from the bearing carrier retainer nut 6 30 Remove the bearing carrier retainer nut 6 30 Remove the bearing carrier 6 34 Remove the prop shaft 6 27 The prop shaft bushing 6 26 used only with the 01 8244 amp 01 8248 gear sets come out with the prop shaft SEDI Remove the bearing carrier O ring 6 38 shims 6 39 amp thrust washer 6 40 Remove the vertical shaft flange nut 6 29 Remove O ring 6 13 amp alignment spacer 6 14 shims 6 15 amp tab washer 6 16 Remove the vertical shaft 6 2 with bearings amp pinion gear 6 25 Remove the prop gear 6 25 with bearing The prop shaft bushing 6 26 may be removed from the g
7. Max propeller diameter on the SCX is 16 3 4 SCX4 is 17 always check that there i is at least 1 2 clearance between the propeller blades and the drive case 12 Large diameter propellers installed on a 6 prop shaft will require a torque tab on single engine boats 13 SCX and SCXA drives require a drive oil reservoir with a minimum capacity of 1 1 2 quarts 14 When installing drive to gimbal or lower to upper always use anti seize on all threads 15 When installing lower to upper inspect all O rings replace as necessary pressure check to insure proper seal 16 If you do your own maintenance and repairs on your IMCO drive you will need a service manual and the proper tools Service manuals and tools are available at www imcomarine com cal_store Before Runnng 17 Always wear proper safety equipment when operating your boat testing or running at high speeds 18 Inspect for oil level in drive and reservoir leaks loose fasteners worn parts Recommended oil Torco RTF GL 6 Torco Part A220015CE unit Part S220015C case IMCO Part 09 2600 unit Part 09 2605 5 Gal Part 09 2610 case 100 Synthetic Raceing Transmission Fluid Replaces SAE 75W90 To drain oil remove drain screws from bearing carrier right below the prop shaft and on port side of upper To replace oil pump oil in from lower drain screw until it comes out of upper drain screw hole Replace drain screws and add oil to drive oil reservoir
8. Seat Pinion Center Measuring Slug a a P ara 22222 AS Pinion amp EX 2025 Lower Thrust Seat Gear counting lisance Pinion Retainer Spacing SC X WO RK SHEET Serial UPPER CAP Parallels 2 250 Measurement A Nom 1 862 Cap Deck to Thrust Sat Total B Norm 0 388 DECK TO PINION CENTERLINE Deck to Tool Measurement C Norm 2 252 Less Parallel 1 000 Total Nom 1 252 Plus 1 2 tool 2 012 Deck to Pinion CL Total D Nom 3 264 UPPER THRUST SEAT Deck to Pinion CL D Nom 3 264 B 0 388 Pinion CL to Upper Thrust Seat Total E 2 876 Bearing Thickness 0 157 Mounting Distance 2 659 Race Thickness F Nom 0 060 LOWER THRUST SEAT Measurement G Nom 7 138 Parallel 1 000 Deck to Lower Thrust Seat Total Nom 6 138 Deck to Pinion CL D Nom 3 262 Pinion CLto Lower Thrust Seat Total H 2 876 Bearing Thickness 0 157 Mounting Distance 2 659 Race Thickness J Norm 0 060 GEAR MEASURMENTS Gear One Measurement K1 Nom 2 091 Less Parallel 1 000 Gear Depth One Total L Norm 1 091 Gear Two Measurement K2 Nom 2 091 Less Parallel 1 000 Gear Depth Two Total M Nom 1 091 GEAR ASSEMBLY Gear Depth One Nom 1 091 Gear Depth Two Nom 1 091 Race Thickness F Nom 0 060 Race Thickness J Nom 0 060 2 x Bearing Thickness 0 314 Retainer Spacing Measurement N Nom 3 162 Gear Assembly Total O 5 778 CAP C RUSH Pinion CL to Upper Thrust Seat E Nom 2
9. 1 through front of gear case From the rear of gear case place the small hole of the shift arm 2 22 onto the pin of the shift link and secure with cotter pin 2 23 Be sure that the shift arm is positioned to except the detent kit 1 31 Install shift shaft 2 26 through the yoke amp cam note use caution while installing to avoid cutting seals and shift arm 2 22 Torque the 2 shift shaft screws 2 27 to 100 in lbs Use Loctite 262 on screws Install quad ring 1 10 steering cap 1 2 including detent kit 1 31 insure O rings 1 29 amp 1 30 are in place Torque steering cap screws to 35 ft Ibs Use Perfect Seal on threads Install quad ring 1 12 in steering cap shift shaft plug 1 9 top cap O ring 1 13 top cap oil pressure O ring 1 14 Install top cap Torque top cap screws 1 8 important short screws in 2 front amp 2 rear holes 1 7 longer screws in 2 port and 2 starboard holes to 25 ft lbs Use Perfect Seal on threads Install oil tank cover 1 43 oil tank gasket 1 42 with Permatex Form Gasket 2 note use a very thin layer on gasket oil tank cover screws 1 41 with Loctite 242 torque to 10 ft Ibs Page 7 1 Parallel p Cap SCX SETUP DIAGRAMS e 1 25 Parallel ee Pam J E LE O si c Fal T TE D a 1 in pe bob Upper Case o Lee o 3 Li x M IL Ua EE E E BER E ae eo i Kc O 1 Parallel Upper Thrust
10. 2504 X w 33 DrainScrewSealingWasher 1 11 1017 Bearing Carrier 1 Prop Shaft 21 1 012120 34A Bearing Carrier 1 1 4 Prop Shaft 1 0 231 34B Bearing Carrier 1 7 16 Prop Shaf 171 0125 35 Seal Prop Shaft 11 11 305 35A Seal PropShafti LineCu 1 1 11392 358 Seal PropShaft11 4 12 011 3033 Seal Prop Shaft 1 7 16 2 1 33M 36 Bearing Cup I Prop Shaft 1 1020044 O 36A Bearing Cup 1 1 4 Prop Shaft 1 102006 36B BearingCup 17 16 PropShaft 71 10 2018 11 37 BearingCone 1 PropShaft 11 10 1013 Bearing Cone 1 1 4 Prop Shaft 1 101015 38 Ring Bearing 1 134 39 Shim BearingCarrier LI Kit 013201 40 Thrust Washer 109 Thick Page i3 1 01 2000 amp LOWER GEAR CASE ASSEMBLY Note Optimum performance of lower gears requires pinion height setup use Lower Pinion Gear Height Measurement Fig 7 sheet to set pinion gear 1 2 22 23 24 25 26 27 Install the vertical shaft roller bearing 6 28 into the gear case Install the vertical shaft lower bearing cup 6 20 amp shims 6 21 Install the lower 6 19 upper 6 18 bearing cones and roller bearing race 6 3 onto the vertical shaft 6 2 Install the vertical shaft into the gear case Install the upper bearing cup 6 17 Tab
11. IMCO SCX SERIES INFORMATION OPERATION amp MAINTAINANCE 1 SCX amp SCX4 Drives will not fit on a standard gimbal helmet IMCO HELMET 05 8025 Black or 05 8027 Silver or 05 8028 ITS Black is required 2 Maximum engine idle speed is 800 RPM Shift drive with a positive move do not let clutch sit between neutral and in gear position 3 Do Not install propeller until the drive shift linkage has been properly installed and tested with the engine running 4 When using SCX or drives it is necessary to have full hydraulic steering for your safety 5 When tuning engine remove propeller and shift drive into forward gear 6 Do not run your boat with a worn or loose gimble ring or helmet worn clevis pins or clevis bushings 7 Every hull is different and requires a different setup Many different things contribute to performance water pickup location cavitation plates gear ratio drive height prop weight distribution water conditions weather conditions 8 If you are installing the drive on a new application consult the manufacture or a dealer with experience with the hull to determine the proper drive height 9 SCX Drive is 19 7 8 from crankshaft center line to prop shaft center line 2 shorter than standard Bravo SCXA Drive is 17 7 8 from crankshaft center line to propshaft center line 4 shorter than standard Bravo 10 The bolt pattern is different from the SCX to the SCX4 lowers cannot be interchanged 11
12. SCXClutchShaft 1 01 3556 18 PinionHubShims 01 2548 X 19 Roller Bearing Clutch Shaft Tower 1 10 303 ss 20 SCH Tower 1 01251 21 SCX Shift Cable Retainer 1 01 2573 22 SCXShiftArm j 04558 23 CotterKey 1 08150200141 24 SCXShitlink 11 014577 25 ShiftShaftBushing 1 10 08 26 SCX Shift Shaft 1 01 3559 O 27 Screw 1 4 28 3 4 Socket Cap 2 0806602062 28 Yoke amp Cam 1 04405 29 Seal ShiftShaft 12 11 3000 30 ShiftShaftBushing 11 10 7009 31 RetainerNut 1 01 2229 32 YokeGearEnd 1 058 33 Cross amp Bearing 72 01 2086 34 CenterSocket 1 01 2007 35 YokeCouplerEnd 1 01 2008 36 Nut Yoke Gear End 5 8 18 Thin Nylock Steel 1 08 091105002 37 Washer Yoke Gear End LJ 08121100002 38 Bearing Cone Pinion Bearing 1 10 07 39 Bearing Cup Pinion Bearing 1 102022 40 Bearing Cup Pinion Bearing 1 10204 41 Bearing Cone Pinion Bearing 11 10 3 42 YokeGearEndShims Kit 01 2020 X 43 Pinion Shoulder Washer oz 44 YokeGearEndSeal 1 11 309 1 01 2240 Pinion Seal Carrier Page 5 UPPER GEAR CASE ASSEMBLY NOTE Optimum performance of the upper gear case requires setting up the pinion amp clutch gears with IMCO procedure as follows 15 2 10
13. e bearing carrier into the gear housing Install the bearing carrier tab washer 6 31 amp retainer nut 6 30 and torque the retainer nut to 150 lb ft Rotate the vertical shaft at least 3 turns and check the prop gear backlash optimum 012 to 015 Adjust the thickness of the prop gear bearing cup shims 6 22 to obtain the correct backlash readings During final assembly be sure to clean amp loctite the vertical shaft flange nut 6 29 Torque the nut to 100 Ib ft Temporarily install the bearing carrier thrust washer 6 40 amp shims 6 39 prior to prop shaft amp bearing carrier installation Torque the bearing carrier retainer nut to 150 Ib ft Check overall rolling torque at the vertical shaft optimum 11 to 17 Ib in Page 14 LOWER GEAR CASE ASSEMBLY CONT 28 Adjust the thickness of the bearing carrier shims 6 39 to obtain the correct rolling torque readings Upon final assembly be sure to install the bearing carrier O ring 6 38 prior to installation of the bearing carrier After applying final torque of the bearing carrier retainer nut 6 30 bend one tab of the tab washer 6 31 to engage with one of the slots in the retainer nut 29 30 Lower Pinion Height Measurement Fig 7 Pinion Gear lt lt RSI 555222 2 4 RRO SS 2555 SS SS ON K S N 2j S S 55 x 55 NXX gt SERE RSI SI LOK 025 Feeler Ga
14. ear at this time if it was not removed in step 4 Remove the lower vertical shaft bearing cup 6 20 amp shims 6 21 Remove the vertical shaft roller bearing 6 28 Remove the upper 6 18 amp lower 6 19 bearing cones from the vertical shaft Remove the roller bearing race 6 3 from the vertical shaft Remove the bearing cup 6 36 from the bearing carrier Remove the prop shaft seals 6 35 from the bearing carrier Remove the prop gear bearing cone 6 24 from the prop gear Remove the prop gear bearing cup 6 23 amp shims 6 22 Remove the bearing cone 6 37 from the prop shaft Remove the O ring 6 6 O ring 6 7 amp O ring 6 8 Page 11 Lower Gear Case Fig 6 Indicates Drive Length 1 0 Standard Length 1 l Shorter 1 OOO 9 Page 12 Lower Gear Case Fig 6 LI Description ty PartNumber 1 LowerCase 0 StandardLength 1 01 1120 1A LowerCase 1 Shorter 1 ona 1B Lower Case 2 Shorter 1 0t1122 2 Vertical ShaftStandard Length 17 Tooth 1 01 3265 2A Vertical Shafti Shorter 17 Tooth 11 06 2B Vertical Shaft 2 Shorter 17 Tooth 3 BearingRace LI 10 600 4 Nut 71620NylockS S Thin 1 2 08090904000 amp 5 Washer 7 16 AN S S Thin X 2 08160900000 6 O Ring Oil Passa
15. eering Cap Tie Bar Port Silver 1 01 1563 Upper Cap 11 01255 4 PinionHub 1 01256 5 Screw 5 16 18x 1 2 Button Head 1 08 040705041 Top Cap Lid 1 04201 O 7 Screw 3 8 16x13 4 S S12Point 4 08 070806111 8 Screw 3 8 16x11 2 S S12Point 7 4 08 070806101 9 ShiftShaftPlug 171 111024 Quad Ring Cooling Water Bottom 1 11404 Screw 5 16 18 x 1 2 Allen Set Tower Retainer 1 08 050705041 Quad Ring Cooling Water Top 1 11 4055 O Ring Top Cap 1 112099 O Ring Top Cap Oil Pressure 1 11 2003 Spring Kit Seal Ball amp Spring Kit 01 2005 O Ring Water Passage Upper to Gimbal 1 112148 O Ring Shift Linkage 1 11 2129 18 Pinion Shims 01 2548 O Ring Pinion Hub 2 11261 O Ring Pinion Retainer Nut 1 11 2154 Pinion Hub 5 16 Copper Sealing Washers 10 08 120700004 22 Screw 5 16 18 x 1 Socket Cap 4 08 060705082 Screw 5 16 18 x 1 1 2 Socket Cap 6 08 060705102 24 Screw 3 8 16x3 4 HH 2 08 010806000 25 Washer 3 8 Star 2 08110800001 26 Washer 38 AN 2 08 100800000 27 Anode 1 012207 28 Screw 7 16 14 x 1 3 4 S S 12 Point 4 08 070907111 29 O Ring Steering Cap Oil 1 112250 30 O Ring Steering Cap Shift Cavit 1 112242 31 Detent Kit S
16. ge 1 11442 C 7 O Ring Water Passage 11243 8 O Ring Cooling Water Passage 1 15204 9 PipePlug 1 8NPTS S 11 09207 10 Stud 7 16x2 S S 12 08130904121 C 11 Retainer Ring Vertical Shaft Coupler 1 08 12150001 12 Vertical Shaft Coupler 17 Tooth 1 02110 13 O Ring Alignment Spacer 1 112208 14 AlignmentSpacer 1 01 2205 15 Shim Vertical ShaftUppe Kit 01 2012 16 Tab Washer Vertical 121 17 Bearing Cup Vertical Shaft Upper 121 1022 18 Bearing Cone Vertical Shaft Upper 1 10 1011 19 Bearing Cone VerticalShaftLower 1 10100 2 20 Bearing Cup Vertical Shaft Lower 14 10209 21 Shim VerticalShaftLower 1 01 2203 22 Shim PropGear Ki 01 2200 23 Bearing Cup Prop Geay LI 10 200 24 BearingCone PropGear 1 1 10108 25 Prop amp PinionGear150 Set 01 8240 25A Prop amp PinionGear 34 LI Set 01 824 258 Prop amp PinionGear1 25 LI Set 01 8248 26 Bushing Prop Shaft X 1 012178 2 mesh oso 27A PropShaft 11 4 O 1 05400 27B PropShaft 17416 11 030 28 Bearing Rolle 1 10306 29 Nut PinionGear 11 0525 30 1 0 200 31 Tab Washer Bearing Carrie LI 01242 32 DrinScew LI 01
17. ge S S Ee SS SN SX INS 55 SS S 5 Ak VAS N lt SS Sx SR n SZ Gm lt SS e X 2 7 SS SS WAV AVA WAZA AAAA KS D gt Pinion Height Gage Mercury Part Number 91 42840 Page 15 pa UL qe pu po Pie Disassembly Assembly Tools SCX Upper IMCO Mercury Tower amp Cap Race Puller Kit 01 5443 Tower Internal Bearing Puller Kit 01 5445 Tower Removal Tool Kit 01 5448 Pinion Retainer Nut Driver 01 5590 Pinion Center Measuring Slug 01 5583 Pinion Bearing Cup Installer Front 01 5580 Pinion Bearing Cup Installer Back 01 5581 Bearing amp Race Installer Cap 01 5581 Bearing amp Race Installer Tower 01 5582 Backlash Tool Kit 01 8017 A Backlash Tower 01 5579 Indicator Bracket 01 5588 C Pinion Gear Lock 01 5587 D Backlash Wand 01 5449 E Dial Indicator 01 5591 SC Lower Cover Nut Wrench 1 Prop Shaft 91 61069T Cover Nut Wrench 1 14 Prop Shaft 91 840393 Lower Pinion Height Gauge 91 42840 Prop Gear Cup Installer 91 31106 Vertical Shaft Roller Bearing Driver A Pilot 91 813653 B Driver rod 91 37323 C Bearing Remover 91 638T Vertical Shaft Roller Bearing Installer A Pilot 91 813653 B Threaded Rod 91 31229 C Bearing Installer 91 89867 Clamp Plate 91 43559T Dial Indicator 91 58222A1 Vertical Shaft Bearing Cup Puller 01
18. ove 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 amp lower thrust bearings amp 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 ae SS i om Page 1 Upper Case Hardware amp Seals 1 g F CSN MB N wy I J 28 V NY 5 9 OS N Upper Case Silver 2 E 5 2 Led L x o S a o o 2 1 011557 Steering Cap CA Black Steering Cap NV Black Steering Cap Generic Black Steering Cap ITS Black 2D Steering Cap Tie Bar Starboard Black 2E Steering Cap Tie Bar Port Black 2 Upper Case Hardware amp Seals Fig 1 Item Description X Pet Number 01 1558 Steering Cap CA Silver 1 Steering Cap NV Silver 1 01 50 Steering Cap Generic Silver 1 01 1560 21 SteeringCapiTSSilver Ir 0135601 O Steering Cap Tie Bar Starboard Silver 1 01 1562 St
19. pring amp Ball Cylinder Kit 01 2044 32 Drain Screw Sealing Washer 11 11107 33 DranScrew 1 012250 22 34 Guide Pads Port amp Starboard 1 2 0471 35 Screw 1 4 20 x 1 2 Flat Head Undercut 4 0802004041 36 Stud 716x21 7 14 08 130904141 37 Washer 7 16 AN S S 1 4 0810090001 38 Nut 7 6 20NyockS 14 08 080904001 39 Screw 10 24 x 5 8 Socket Cap 1 08 0604030522 40 Magnet IL 019587 41 Screw 1 4 20x 5 8 Socket Cap 0806604051 42 OilTankGasket IL 11100 43 OilTank Cover 1 0124 Page 3 Upper Case Gear amp Components Page 4 Upper Case Gear amp Components Fig 2 Item PartNumber 1 UpperCase Black 1 01 4550 1A UpperCase Silver 1 01 4557 2 Roller Bearing Clutch Shaft 1 10 3042 UpprCap 1 0125 4 PinionHub 1 0 60 O 5 TowerRace 2 10 401 6 ThrustRace 2 10 5045 7 ThrustBearing Gear 2 10444 8 Keepers Clutch Shaft 12 01 2077 9 Clutch Shaft Retainer Thrust Collar 1 0129 10 Spirol Retainer Ring 2 012055 11 Roller Bearing Internal Gear 2 10 3046 12 SCXPinionGear 11 0458 13 SCXClutchGear ____ o o 2 05 14 Thrust Bearing Clutch Spring 2 1024020 15 ClutchSpring 2 02566 16 1 056 17
20. pushed in right hand rotation shift linkage pulled out left hand rotation 29 Serial location Port side below SCX SCX4 sticker 3 10 14 TREME DVANTAGE scX sc Parts and Service Manual IMCO 510 East Arrow Highway San Dimas CA 91773 800 899 8058 909 592 6162 Fax 909 592 6052 www imcomarine com email info imcomarine com TABLE OF CONTENTS Upper Gear Case Disassembly 1 Upper Case Hardware A Seals Drawing 2 Upper Case Hardware A Seals Parts List 3 Upper Case Gear amp Components Drawing 4 Upper Case Gear amp Components Parts List 5 Upper Gear Case Assembly 6 Upper Gear Case Assembly Cont 7 ydo sd corp qn 8 SCX Setup Work Sheet scorie 9 Backlash Assembly Diagram eenegen 10 Lower Gear e E le EE 11 Lower Gear Case Drawing 12 Lower Gear Case Parts 13 Lower Gear Case Assembly 14 Lower Pinion Height Measurments _ 15 Dissassembly Assembly Tools
21. washer 6 16 shims 6 15 amp alignment spacer 6 14 onto the vertical shaft Install the vertical shaft clamp plate onto the gear case Mercury Part 43559T Check the rolling torque of the vertical shaft optimum 3 to 5 Ib in Adjust the thickness of the upper shim to obtain the correct rolling torque Temporarily install the pinion gear 6 25 amp flange nut 6 29 Check the pinion gear height optimum 025 see Lower Pinion Height Measurement Fig 7 If pinion gear height requires correction remove all associated components and adjust the lower bearing shims Any adjustment here requires that the upper bearing shims be compensated by the same amount Remove the vertical shaft amp pinion Install the prop gear bearing shims 6 22 amp bearing cup 6 23 into the gear case Install the prop gear bearing cone 6 24 onto the prop gear 6 25 Install the prop gear with bearing into the gear case The prop shaft bushing 6 26 used only with the 01 8244 and 01 8248 gear sets must be installed into the prop gear at this time Re install the vertical shaft components described above and install the vertical shaft clamp plate Install the bearing carrier bearing cone 6 37 onto the prop shaft Install the prop shaft with bearing into the gear case Install the prop shaft seals 6 35 amp bearing carrier bearing cup 6 36 into the bearing carrier 6 34 Temporarily install th
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