Related Manuals for Ofna Racing 9.5 MBX
Summary of Contents for Ofna Racing 9.5 MBX
- Page 1 RTR Instruction Manual OFNA Racing 22692 Granite Way, Ste. B Laguna Hills, Ca. 92653 (949) 586-2910 Www.ofna.com...
- Page 2 RTR KITS - REQUIRED FOR OPERATION You will need to buy a few items to start the engine and run the car. THINGS NEEDED • Use 20% nitro CAR fuel. Do not use airplane or heli fuels, they will over heat engine. •...
- Page 3 MUST READ THIS BEFORE RUNNING Running a nitro kit is fun and easy, but to make this a safe • Clean oil and dirt from chassis with a degreaser. and good experience you must observe a few rules. This Precautions kit is extremely fast, easily over 40MPH, and can seriously •...
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Page 4: Radio Control Unit
NON-RTR OR PRO KITS - REQUIRED FOR OPERATION THINGS NEED BESIDES THE KIT 3.5 cc (21 Class) ENGINE REAR EXHAUST OFNA/Picco O-1 bp #51217 Glow Plug Heat with Battery & Charger Glow Fuel # 10227..$$19.95 (please note OFNA Glow Heats available) Bottle’s with spout # 10160 - large 500cc # 10161 - large 500 ccAuto Stop... -
Page 5: Plastic Parts
PLASTIC PARTS 40017 40003 GEAR BOX PLASTIC PARTS DIFF. CASE 36901 PLASTIC PARTS Front Knuckles, Pivot Ball 40015 ARM HOLDER PLASTIC PARTS 31304 Rear Hub, Pivot Ball 40094 40202 Front Upper Front and Rear Lower Arms. MBX Arm 40027 40013 & 40048 WING SUPPORT PLASTIC PARTS FRONT BUMPER &... - Page 6 PLASTIC PARTS 40031 40047 SERVO SAVER PLASTIC PARTS RECEIVER BOX PLASTIC PARTS 40040 CENTER DIFF. MOUNT PLASTIC PARTS 40018/40029 40046 CHASSIS BRACE PLASTIC PARTS STONE GUARD PLASTIC PARTS 40056 SHOCK ABSORBER PLASTIC PARTS...
- Page 7 ASSEMBLY OF THE THROTTLE LINKAGE SYSTEM #30800 #30530 Plastic Throttle Plastic Throttle * Snap On. Ball Joint 3X3mm 3X3mm 2mm Rod Set Screw Set Screw Throttle Spring #10300 3X3mm Set Screw Alum.Stopper Fuel Tube ( 6mm ) #10300 Alum.Stopper * Align throttle servo same Plastic Collar as shown.
- Page 8 ASSEMBLY OF THE DIFFERENTIAL GEAR 30779 4x4mm 4 x 10mm Set Screw 40004 washer Diff. Gear 40006 30779 (Small) Cap Joint 4 x 10mm 40010 40004 washer 30773 2.5x13.8mm Diff. Gear (Small) Cross pin 40003 Diff. Case 30773 36053 8x16mm 40004 Cross pin Ball bearing...
- Page 9 ASSEMBLY OF THE FRONT GEAR BOX OPTION: #49012 PINION GEAR 36053 13TOOTH 8X16mm 40017 Ball bearing Gear Box 36053 8X16mm Ball bearing 40021 14TSmall 36053 Bevel Gear 8X16mm Ball bearing..4 40017 Gear Box 40024 13x16x0.2mm Shim....2 40024 13x16x0.2mm Shim Use shims to adjust gear 40021 mesh.
- Page 10 ASSEMBLY OF THE FRONT SHOCK TOWER OPT: 49003 35314 CNC 7075 Alum. Shock Tower Nylon Nut 49037 Front Shock Tower, Orange 40067 M4x15 TP Screw 40067 M3x12 TP Screw 36901 ASSEMBLY OF THE FRONT PIVOT Ball Type Assembly of the right and left hand side Knuckle Arms are the same.
- Page 11 Assembly of the right and left hand side ASSEMBLY OF THE FRONT SUSPENSION ARMS are the same. 40023 Lower Arm Shaft (4mm) 90021 E-Ring 90021 E-Ring * Insert the drive shaft into the cap joint before assembly. 36170 Arm Shaft 90020 2.5mm E-Ring...
- Page 12 ASSEMBLY OF THE REAR GEAR BOX OPTION: #49012 PINION GEAR 13TOOTH 40017 Gear Box 36053 8X16mm 36053 Ball bearing 8X16mm 40021 Ball bearing 14T Pinion Gear 40017 Gear Box 40024 4X16mm 13x16x0.2mm Tapping Screw Shim (Small Head) * Adjust the backlash with the shims.
- Page 13 3x20mm ASSEMBLY OF THE FRONT STABILIZER Screw 30341 40029 Stabilizer Ball Stabilizer Ball End 3x20mm 30701 Screw 40029 3x8mm Stabilizer Set Screw Ball End 30401 Ball End 30701 Set Screw 30701 Set Screw 30341 40018 Stabilizer Ball..2 Stabilizer Mount Plastic 3x10mm Flat Head 3 x 20mm...
- Page 14 ASSEMBLY OF THE WING STAY ( Take the plastic part from #40027Rear Win Stay Set. ) 40027 Wing Mount 49038 Rear 40027 Shock Tower, Orange Wing Mount 40027 Rear 35313 Body Mount *Insert the 3mm nylon nut before assembly. Nylon Nut 3x12mm 3x20 Tapping Screw...
- Page 15 ASSEMBLY OF THE PIVOT BALL REAR HUB Assembly of the right and left hand side are the same. 36081 Rear Wheel * Make sure the pivot ball Axle Shaft 36053 90026 move smooth. 31304 8x16mm 5 x 5mm Pivot Ball Ball bearing Set Screw....2 rear Hub...
- Page 16 ASSEMBLY OF THE REAR ANTI-ROD BAR Assembly of the right and left hand side are the same. Nylon Nut Rear Upper Arm 30341 Assembly Stabilizer Ball..2 3 x 20mm Screw ......2 3 x 25mm Cap Screw 30701 3 x 3mm 35313 Set Screw....2 Nylon Nut...
- Page 17 ASSEMBLY OF THE REAR GEAR BOX ONTO CHASSIS 40068 4 x 16mm Flat Head Tapping Screw..4 40064 Chassis 4 x 16mm Flat Head Tapping Screw 4 x 16mm Flat Head Tapping Screw ASSEMBLY OF THE SERVO SAVER 40037 Steering Plate Hex Screw 40037 Option:...
- Page 18 ASSEMBLY OF THE SERVO SAVER ONTO THE CHASSIS 4x15mm Tapping Screw 4x10mm Screw 40027 Front Body Post 4x10mm Screw..2 40095 * Assembly the front body post Front Plat, before assembly the Front Plate. Orange 3 x 12mm Tapping Screw..1 3x12mm Screw 4 x 15mm Tapping Screw...
- Page 19 ASSEMBLY OF THE BRAKE AND SPLIT CENTER DIFF. MOUNT * Make brake pads for each side. * Take off the double sided paper before assembly. 36660 Brake Pad 36661 Brake Pad linings 40045 40040 Brake Pad Center Diff. Adjustment Screw 40044 Mount 40044...
- Page 20 ASSEMBLY OF THE CENTER DIFF. INTO CENTER DIFF. MOUNT Center Diff. Assembly 40042 Brake Disk 40042 Brake Disk 40042 40042 Brake Disk Brake Disk OPTION: #49008 GRAPHITE BRAKE DISKS, 2PCS. 4x10mm Screw..4 3 x 3mm Set Screw....2 30171 Brake Lever..2 3x10mm Screw 40096...
- Page 21 ASSEMBLY OF THE CENTER DIFF. ONTO CHASSIS 40028 Center Drive Shaft (93mm) 40028 Center Drive Shaft (93mm) 4 x 12mm 4x12mm Flat Head Screw..2 Flat Head Screw ASSEMBLY OF THE STIFFENER OPTION: 49015- CNC Alum. Chassis Brace, 4x12mm Front and Rear Flat Head Screw 40018...
- Page 22 40078 Yellow, Stone Guard 3x10mm Screw 3x10mm Screw 40078 Yellow, Stone Guard 3 x 10mm Tapping Screw..6 3x10mm Screw ASSEMBLY OF THE RECEIVER BOX 40047 Receiver Box 2x10mm Cover Tapping Screw * Use the screw provided with your radio 40898 2x25mm Screw 40047...
- Page 23 ASSEMBLY OF THE RADIO TRAY 3x10 Tapping Screw 3x10mm Tapping Screw 3x10 Tapping Screw 3x10mm Tapping Screw 49039 Alum. Throttle Radio Tray, Orange Servo Steering Servo 3x12mm Tapping Screw 40027 Radio Tray 40027 Post Radio Tray ( Plastic ) Post ( Plastic ) 10274 OPTION:...
- Page 24 ASSEMBLY OF THE CLUTCH INTO ENGINE Notes: 3 x 5mm Screw Non-Pull Start Engines... • Alum. Washer behind the flywheel is not needed when using Force engines or similar types. O.S. Engines will require washer spacer. 3 X 8mm • To check!..place the brass corn against the engine bearing, then flywheel. You should be covering one or two thread of the engine shaft.
- Page 25 INSTALLATION OF THE FUEL TANK AND ENGINE ONTO CHASSIS Note Book Paper 3X15mm 40066 40066 Tapping Screw Pressure Fuel Nipple Nipple 40066 Fuel Tank * Assemble the fuel tank post before assembling the fuel nipple. 3X15mm Tapping Screw * Use note book paper to set gear backlash between spur gear and clutch bell.
- Page 26 ASSEMBLY OF THE FRONT STEERING ROD Nylon Nut * Use the screw provided * Enlarge this hole. with your servo. 30401 30690 3x30mm Tie Rod End 3x10mm Tie Rod Screw 10768 30401 Servo Horn Ball 30411 Ball 3x15mm Screw 30411 Tie Rod End Parallel 16mm...
- Page 27 ASSEMBLY OF THE BRAKE LINKAGE INTO 3X3mm 10300 BRAKE ROD Set Screw Alum. *Snap On. Stopper Fuel Tube * Align throttle servo same as shown. Fuel Tube Brake Idle Position Full Throttle USING BREAK ADJUST NUT *use the screw provided With your radio. Tighten Less Brake Loosen...
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Page 28: Shock Assembly
SHOCK ASSEMBLY * Assembly 2 pieces of the shock shaft for front and 49041 Oil Seal rear. Spring Adjuster, Orange 40076 40060 Shock 32235 40059 2.5mm Shock Piston..4 Cylinder 14.7mm Nylon Nut O-Ring 32237 Fit the O-ring into groove. 3.5mm O-Ring 32235 Make a PAIR for front... - Page 29 ASSEMBLY OF THE FRONT SHOCK ABSORBER Assembly of the right and left hand side are the same. 3x25mm Cap Screw 3 x 20mm Cap Screw..2 * Take the plastic bushing from the shock plastic parts tree. Nylon Nut..2 36610 Shock Upper Fixing Plastic 3 X 25mm Bushing...
- Page 30 Assembly of the right and left hand side are the same. ASSEMBLY OF THE WHEELS ONTO FRONT KNUCKLE ARM AND REAR HUB 15073 Orange Wheel Nut 86044 - Red 86045 - White 86046 - Lime 86047 - Yellow 86048 - Black 86049 - Chrome 17mm Dual Spoke, 15073...
- Page 31 SET-UP GUIDE RIDE HEIGHT ADJUSTMENT Hex Screw Use a 2mm hex screw to adjust the ride height. Screwing in the 4x10mm set screw..Ride height becomes lower. FOR A STICK PACK BATTERY Uncsrewing the 4x10mm set screw..Ride height becomes higher. * Use tape to secure the battery. Tape 40048 Stick Pack...
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Page 35: Starting Of The Engine
ENGINE BREAK-IN AND TUNNING (BREAK-IN THE ENGINE BEFORE DRIVING THE CAR!) • Choose a wide clear outdoor location with low dirt and dust. OPTIONAL OFNA CAR STANDS • Set the car on box or holder with wheels off the ground. •... - Page 36 TUNING AFTER BREAK-IN Close master needle by turning clockwise until it stops. Then open needle by turning counterclockwise 3 turns When running car, adjust carb with 1/8 clockwise turns, (rich setting). slowly leaner, until the top speed good. Check engine temp, if possible, for no more 250 degrees.
- Page 37 APPENDIX PAGES...