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1:10 SCALE NITRO POWERED TOURING CAR
RTR INSTRUCTION MANUAL
SAFETY PRECAUTIONS
!
This radio control models is not a toy!
- First builders should seek advice from people having building experience in order
to assemble the model correctly and to produce it's performance to full extent.
- Assemble this kit only in places out of children's reach!
- Take enough safety precautions prior to operating this model. You are responsible
for this models assembly and safe operation!
- Always keep this instruction manual ready at hand for quick reference, even after
completing the assembly.
OFNA RACING
22692 GRANITE WAY, STE. B
LAGUNA HILLS, CA. 92653
Tel: (949) 586-2910
Technical Data:
Length: 378mm
Width: 197- 200mm
Caster Angle: 8 to14 Degree (Adjustable)
Track (Front): 173mm
Clutch Bell : 15T-19T
Height: 110mm
Front Toe-In: Adjustable
Track (Rear): 173mm
Tires (Front): 65mm x 26mm
Spur Gears: 42T- 38T
Weight: 1720grms (including engine)
*SPECIFICATION ARE SUBJECT TO CHANGE WITHOUT NOTICE.
W/base: 265mm
Ground Clearance: 5mm-10mm(Adjustable)
Rear Toe-In: Adjustable
Tires (Rear): 65 x 26mm-30mm
4WD
Shaft Drive
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Summary of Contents for Ofna Racing LD3
- Page 1 - Take enough safety precautions prior to operating this model. You are responsible for this models assembly and safe operation! - Always keep this instruction manual ready at hand for quick reference, even after completing the assembly. OFNA RACING 22692 GRANITE WAY, STE. B LAGUNA HILLS, CA. 92653 Tel: (949) 586-2910 Technical Data: *SPECIFICATION ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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Page 2: Required For Operation
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. • Buy SHORT glow plugs, OFNA/PICCO Plug (#51007) are long therefore use two copper washers. - Page 3 MUST READ THIS BEFORE RUNNING Running a nitro kit is fun and easy, but to make this a safe rusting. • Clean oil and dirt from chassis with a degreaser. and good experience you must observe a few rules. This kit is extremely fast, easily over 40MPH, and can seriously Precautions injure someone if you are not careful.
- Page 4 ASSEMBLY OF THE DIFFERENTIAL (Build two differentials for front and rear.) 94051 M2x6mm 5x8x0.8mm 5x10mm 37771 38256 Washer E-Ring Flat Head 10T Diff. Gear Washer 37450 O-Ring 13T Diff. Gear 38255 Tapping 5x8x1.5mm 10x15x4mm (small) (Large)) Cap Joint 38257 38278 Screw Bearing 38253...
- Page 5 ASSEMBLY OF THE FRONT GEAR BOX (Build a gear box for front.) * The gear box after assembly. Step 2 M3X12mm M2.6X10mm M2.6X10mm Screw Screw 38321 Screw 94004 94050 94050 M3X12mm Screw 94004 M2.6X10mm Screw 94050 38251 Gear Case 38251 Gear Case...
- Page 6 ASSEMBLY OF 2-SPEED CLUTCH TRIGGER DISC SET BALL TO REST ON CAM, NOT PUSHING. IF SCREW AS SHOWN, TOO TIGHT, THE BALL WILL PUSH ON CAM LEVEL WITH HOLE EDGE SPREADING SHOE DISC AND WILL NOT FIT INTO ALUM. CLUTCH BELL #38296 CARE MUST BE TAKEN TO BUILD THIS ASSEMBLY CORRECTLY, OTHERWISE 2-SPEED WILL NOT...
- Page 7 ASSEMBLY OF THE TWO SPEED GEAR Step 3 38300 Spur Gear 38297 38296 Retaining Ring 2nd Gear Clutch Bell (Ball Bearing) 38295 1 st Gear Carrier (One-Way) 38297 Retaining Ring 38301 Spur Gear Step 4 90020 2.5mm 38258 E-Ring Bevel Gear (Small) 90020 38258...
- Page 8 ASSEMBLY OF THE BRAKE AND DIFF.MOUNT M2.6x8mm Screw *Take off the double sided tape before assembly. 38289 Bulk Head cover 38289 Plastic Bushing 38271 Brake Pad 38272 Brake Pad 38273 Linings Brake Cam 38272 Brake Pad Linings 38271 Brake Pad 38289 Brake Mount/Upper M3x12mm...
- Page 9 ASSEMBLY OF THE REAL GEAR BOX (Build a gear box for real) *Adjust the backlash with the shim. *Use 2 pcs in this side. Step 1 38254 12x15x0.25mm Shim DIFFERENTIAL ASSEMBLY 37430 5x11x4mm Ball Bearing * Add Gear Grease before closing gear case.
- Page 10 ASSEMBLY OF THE FRONT KNUCKLE ARMS AND CVA SHAFT Assembly of the right and left-side are the same. *Make steering ball move smooth. 39150 37430 37450 39140 10mm 5x11x4mm 10x15x4mm Hex Screw Ball Bearing Ball Bearing Steering Ball Step 2 *Push 2 ball bearings into 38265 knuckle arm as shown.
- Page 11 ASSEMBLY OF THE REAR WHEEL HUB Assembly of the right and left-side are the same. 39150 37430 39140 37450 10mm 5x11x4mm 10x15x4mm Hex Screw Ball Bearing Steering Ball Ball Bearing 39150 Push Push 39140 10mm Hex Screw 38266 Steering Ball Step 1 39141 Rear Wheel...
- Page 12 ASSEMBLY OF THE SEVRO SAVER Step 1 94041 37360 Nylon Nut Ball & Socket 94041 Nylon Nut * Use the long ball end for both Step 2 steering rod and steering servo rod. 37360 94004 M3x12mm Ball & Socket Screw 38289 Servo Saver 38289...
- Page 13 ASSEMBLY OF THE SEVRO SAVER ANDSTEERING RODS 94041 M3x10mm 94018 M3x5mm Flat Head 38275 Nylon Nut Flat Head Hex Screw Servo saver Hex Screw 94019 Screw Front Gear Box Assembly. 94041 Nylon Nut 38263 Arm Holder 38319 (Lower/Rear) Chassis, Stock RTR 0 Degree 38275 Servo saver...
- Page 14 ASSEMBLY OF THE ARM ASSEMBLY OF THE TWO SPEED HOLDER ONTO CHASSIS AND REAR GEAR BOX ONTO CHASSIS M3x10mm Flat Screw * Insert the center drive shaft before assembly the rear gear onto chassis. 94024 94019 38263 M3x30mm M3x10mm Arm holder Flat Screw Flat Screw (Rear/Front)
- Page 15 ASSEMBLY OF THE STEERING SERVO AND ASSEMBLY OF THE RADIO TRAY THROTTLE SERVO Step 1 Step 1 94003 M3X10mm Receiver Hex Screw 38292 94003 Receiver Box M3X10mm Hex Screw 94003 M3X10mm Hex Screw 38289 Servo Adapter THROTTLE Battery SERVO 38289 Servo Adapter 38290 Radio Tray...
- Page 16 ASSEMBLY OF THE RADIO TRA Y ONTO CHASSIS The picture show of the radio assembly from left-side . 94019 94002 M3x10mm M3x8mm Flat Head Screw Screw 94002 94002 M3x8mm M3x8mm Screw Screw 94002 M3x8mm Screw 94019 M3x10mm Flat Head Screw 94019 M3x10mm Flat Head...
- Page 17 ASSEMBLY OF THE FRONT SHOCK TOWER ASSEMBLY OF THE REAR SHOCK TOWER AND FRONT UPPER ARM ONTO REAR GEAR BOX Insert the front caster into front upper arm. 39141 Caster Angle Adjuster(1.5mm) 94002 94004 90020 M3x8mm M3x12mm 2.5mm Screw Screw E-Ring 94004 94004...
- Page 18 ASSEMBLY OF THE ENGINE 38313 tapered cone 10098 94041 Clutch Nut Nylon Nut 3X8 mm Washer SG Crank Shaft 38285 Flywheel, SG 35958 When installing an engines with a SG cranks shaft, you must use the 5x8x2.5mm #180D clutch nut and 7mm tapered cone. Ball Bearing 5x10x4mm Ball Bearing...
- Page 19 ASSEMBLY OF THE ENGINE ASSEMBLY OF THE MANIFOLD ONTO ENGINE MOUNT 38150 M3x12mm Hex Screw 38150 M3x12mm Hex Screw 94007 M3x20mm 94007 Cap Screw M3x20mm Cap Screw 38162 Manifold Gasket 38150 Nylon Nut 38150 Engine Mount 38286 Side Exhaust Manifold *Put the nylon nut into the groove of the 38150...
- Page 20 ASSEMBLY OF THE BRAKE LINKAGE ( For slide carburetor. ) 30530 Throttle Ball End M2x12mm Screw 3x3mm 3x3mm Step 3 Set Screw Set Screw Step 1 Throttle 10300 3x3mm Spring * Take the 2mm plastic washer from Alum. Set Screw the shocks plastic tree.
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Page 21: Installation Of Air Filter
ASSEMBLY OF THE MUFFLER Step 2 Step 1 90012 Pressure Nipple 3x8mm 38327 Washer Muffler Stay 94003 M3x10mm Screw 94034 4x4mm Set Screw 10063 Muffler 38320 Silicone Tube Nylon Strap 8 inch INSTALLATION OF AIR FILTER ASSEMBLY OF THE FUEL TUBE AND PRESSURE TUBE 10179 - Blue 10178 - Yellow... - Page 22 ASSEMBLY OF THE ALUMINUM THREADED BODY SHOCKS * Insert the o-ring into the groove of the adjust nut. NOTE: LEXAN SHOCK ASSEMBLY, SEE APPENDIX PAGES Step 1 Step 2 37966 P12 O-Ring 39030 - Lexan Shock Body. 37965 - Alum Threaded Shock Body. 2mm E-Ring *Use a little shock oil to lubricate o-Rings before...
- Page 23 ASSEMBLY OF THE FRONT BUMPER TOP PLATE ASSEMBLY OF THE FRONT BUMPER 38291 Front Bumper Top Plate 38291 Front Bumper 38291 Front Bumper 94019 Post Tube M3x10mm Flat Head Hex Screw ASSEMBLY OF THE FRONT BODY POST ASSEMBLY OF THE REAR BODY POST 39320 Body Post 39320...
- Page 24 ASSEMBLY OF THE TIRES AND WHEELS ASSEMBLY OF THE WHEELS ONTO FRONT KNUCKLE ARM AND REAR HUB Step 1 Step 1 Super Glue 87660 Radial Body (FRONT ASSEMBLY) Inner Sponge *Insert the inner Sponge before *Insert the inner Sponge before assembly.
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Page 25: Setting Guide
SETTING GUIDE FRONT AND REAR * Use a 2.5mm allen wrench to adjust toe-in for front and rear. TOE- IN AND TOE- OUT SETTING Adjust the length of front steering rod to change the Neutral Position toe angle. Toe-In Making the steering rod longer will make the front tires toe-in. Toe-Out Toe-Out Response will be slower and will over steer. - Page 26 SETTING THROTTLE LINKAGE * ADJUSTING THROTTLE LINKAGE BEFORE START THE ENGINE 1. Turn on your transmitter at first and then the car's electronics (Set the transmitter trim-level in center). Adjust the alum. stopper A to made the carburetor in idle position. Adjust the alum. stopper B to leave 2mm space between alum.
- Page 27 INSTRUCTIONS #38322 SPEED TRANSMISSION ADJUSTING THE SHIFT POINT * Adjust the engine before adjusting the clutch shift timing. Adjust the engine as per engine instruction manual. SHIFT UP TIMING ADJUSTMENT 1.5mm Allen Wrench 1. Once the engine adjustments have been completed, proceed to the adjustment of the clutch shoe shift timing.
- Page 29 APPENDIX PAGES...
- Page 30 ASSEMBLY OF THE LEXAN RTR SHOCKS Step 2 Step 1 39030 Shock Cylinder 94045 2mm E-Ring 37650 37967 Ball End 3mm O-Ring 37100 37100 Front Cap Piston 38325 Shock Shaft Fill THE SHOCKS WITH OIL ASSEMBLY THE SHOCK SPRING 37100 Step 2 Step 3 Step 1...
- Page 31 ASSEMBLY OF THE SINGLE SPEED GEAR ³ æ ¬ q ¾ ¦ ½ ü ² Õ ¦ X 38258 Step 1 Bevel Gear Step 2 2.5mm E-Ring 5x8mm 37430 Washer ¹ Ô ¤ ù 5x11mm Bearing ° ö ª L 38333 5x8mm 44T Spur Gear...