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Xray RX8 Instruction Manual
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Xray RX8 Instruction Manual

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Summary of Contents for Xray RX8

  • Page 2: Before You Start

    RC model racing cars. This is not a toy; it is a precision racing reason you decide the RX8 is not what you wanted or expected, do not continue any further. Your hobby dealer model.
  • Page 3 • Clean all ball-bearings so they move very easily and freely. Therefore we ask you, if at all possible, to purchase XRAY products at your hobby dealer and give them your • Tap or pre-thread the plastic parts when threading screws.

  • Page 4: Equipment Required

    To ensure that you always have access to the most up-to-date version of the XRAY Silicone Shock Oil XRAY Set-up Book, XRAY will now be offering only the digital online version at our Web site at www.teamxray.com. By offering this online version instead of including a hardcopy printed version in kits, you will always be assured of having the most up-to-date version.
  • Page 5 1. FRONT ONE-WAy & REAR SOLID AXLE 968120 345148 980324 345070 345110 345011 968120 345024 345800 968140 345070 345001 FRONT ONE-WAY - HARD COATED + LIGHTWEIGHT ADAPTERS 345110 REAR SOLID AXLE SHAFT 345011 FRONT ONE-WAY AXLE - BLACK COATED 345148 COMPOSITE REAR SOLID AXLE PULLEY 48T 345024 COMPOSITE FRONT ONE-WAY AXLE PULLEY 24T...

  • Page 6: Rear Suspension

    2. REAR SUSPENSION 306219 345310 342630 962121 901316 980322 343150 343130 343311 343285 901306 345370 941218 902306 901410 372651 342070 903256 941218 343193 962120 902308 337250 343111 342070 343111 962121 345360-O 901303 337253 345280 901306 HEX SCREW SB M3x6 (10) 343285 PIVOT BALL 6.8MM (2) 306219...
  • Page 7 2. REAR SUSPENSION INITIAL SETTING Concentric Eccentric 962121 962120 S 12x15x1.0 S 12x15x0.5 SHIM SHIM Bearing oil Bearing oil 1+0.5 INITIAL SETTING 1+0.5 NOTE ORIENTATION 0.5mm When using eccentric bushings, both 1+1+0.5 941218 bushings must be in same position. BB 12x18x4 OPTION: INITIAL SETTING #345290 Alu shim 12x15x1.0mm (4)
  • Page 8 2. REAR SUSPENSION 302080 343050 345450 347321 902310 342316 342316 344051 345320 903308 903308 940508 345100 941218 342317 344180 940817 940815 344041 342070 901303 343013 343022 981208 940508 357210 344130 342317 343055 902318 901405 965090 344110 341102 903416 344141 345820 345510 903412 903412...
  • Page 9 2. REAR SUSPENSION ASSEMBLED VIEW 965090 NOTE ORIENTATION 941218 BB 12x18x4 NOTE ORIENTATION BEARING Both bushings must be in same position INITIAL SETTING REAR BELT TENSION ADJUSTMENT BEARING Place tab in this notch TO TIGHTEN REAR BELT TO LOOSEN REAR BELT Rotate BOTH rear composite bushings in Rotate BOTH rear composite bushings INITIAL SETTING...
  • Page 10 2. REAR SUSPENSION 903308 SFH M3x8 903412 SFH M4x12 4x12 4x16 903416 4x12 SFH M4x16 4x16 DETAIL 901303 SB M3x3 BEARING 902310 SH M3x10 903308 SFH M3x8 981208 P 2x8 940508 BB 5x8x2.5 Use 0mm suspension holders for initial assembly DETAIL INITIAL SETTING Composite set of bushings...
  • Page 11 2. REAR SUSPENSION 902310 341360 902314 901303 344051 903308 343069 901305 902310 343082 343481-K 901303 940508 341380 343071 343481-K 343458 302080 343030 333461 902310 901304 341331 347330 302653 902310 341370 302291 302663 302080 CASTER CLIPS SET 4+3+2+1 MM (2) 343030 GRAPHITE REAR BRACE 901303 HEX SCREW SB M3x3 (10) 302291 STEEL STEERING BUSHING (2+2) 343069 STEEL BUSHING (2)
  • Page 12 2. REAR SUSPENSION DETAIL NOTE ORIENTATION INITIAL SETTING 902310 SH M3x10 903308 SFH M3x8 DETAIL INITIAL SETTING SHIMS (STEP 901305 SB M3x5 DETAIL INITIAL SETTING (STEP Distance according to bodyshell REAR BODY MOUNT 902310 SH M3x10 902314 SH M3x14 3x10 3x14 902314 SH M3x14...

  • Page 13: Rear Transmission

    3. REAR TRANSMISSION 1ST GEARS 335582 335557 COMPOSITE 2-SPEED GEAR 57T (1st) OPTION 901305 965070 335558 COMPOSITE 2-SPEED GEAR 58T (1st) OPTION 335540 345838 335559 COMPOSITE 2-SPEED GEAR 59T (1st) STANDARD 345800 335560 COMPOSITE 2-SPEED GEAR 60T (1st) OPTION 983404 2ST GEARS 345571 903306...
  • Page 14 3. REAR TRANSMISSION SHIFT-POINT SCREW ➎ 901305 SB M3x5 ➍ SHOE-GAP SETSCREW ➊ 908262 SCH M2.5x12 ➌ ➋ 983404 RP 4x4 Setscrews must NOT protrude ➋ NOTE ➊ ORIENTATION Top of screw head should be level with hole bottom edge ➍...

  • Page 15: Front Suspension

    4. FRONT SUSPENSION 342131 901306 901303 342113 901306 345230 980262 345270 980320 903306 342214 941218 342224 342190 345220 902308 941218 345210 961032 342412 962121 337250 962121 902320 345260-O 342070 901303 345270 342070 962120 342440 901308 342290 345280 342450 903256 902320 337253 902308 901308...
  • Page 16 4. FRONT SUSPENSION 962121 962120 S 12x15x1.0 S 12x15x0.5 INITIAL Eccentric SETTING Concentric SHIM SHIM INITIAL SETTING 1+0.5 BEARING INITIAL SETTING 1+0.5 BEARING OIL 941218 BB 12x18x4 1+1+0.5 NOTE ORIENTATION 0.5mm When using eccentric bushings, both bushings must be in same position INITIAL SETTING COMPOSITE SET OF BUSHINGS OPTION:...
  • Page 17 4. FRONT SUSPENSION ALTERNATIVE 2: BLADE ANTI-ROLL BAR 901308 NOTE SB M3x8 ORIENTATION 1. Pre-thread mount with the setscrew. 2. After anti-roll bar is inserted, install and tighten the setscrew. 902320 SH M3x20 961032 S 3.2 FRONT ANTI-ROLL BAR 901306 SB M3x6 Tighten gently Tighten gently, tighten fully when the drive...
  • Page 18 4. FRONT SUSPENSION 341320 902310 901303 341212 342030 901304 342466 342013 333461 343481-K 903410 342315 940508 302653 337311 902310 342040 302080 302663 345430 341201 901408 342080 347211 902310 345000 960040 941218 342180 342070 903412 342023 903412 302080 COMPOSITE CASTER CLIPS SET 4+3+2+1 MM (2) 342030 COMPOSITE UPPER ARM HOLDER RIGHT 901303 HEX SCREW SB M3x3 (10) 302653 BALL END 4.9MM WITH THREAD 6MM (2)
  • Page 19 4. FRONT SUSPENSION NOTE ORIENTATION 902310 SH M3x10 INITIAL SETTING Use 0mm suspension holders for initial assembly COMPOSITE SET OF BUSHINGS WHEELBASE FRONT ROLL CENTER FRONT CAMBER RISE CASTER DETAIL NOTE ORIENTATION Tighten fully M3x6 setscrews 901408 SB M4x8 902310 SH M3x10 DOWNSTOPS 903412...
  • Page 20 4. FRONT SUSPENSION The front body post has two positions - FRONT and REAR. The distance difference between these two positions is 2mm. The position INITIAL of the front body post depends on the position of the rear body SETTING mount: (Page 12 step 2) 903410 1) INITIAL SETTING: If the shim on the rear body mount is IN FRONT...
  • Page 21 5. FRONT TRANSMISSION 346230 901408 901408 343071 345800 950510 903310 962060 902312 335790 903308 965050 343069 335790 345858 981262 940613 345440 345722-K 940613 903310 345712 345800 345732-O 965050 345888 345889 335790 COMPOSITE BALL-BEARING BUSHING FOR MIDDLE SHAFT (2) 901408 HEX SCREW SB M4x8 (10) 343069 STEEL BUSHING (2) 902312...
  • Page 22 5. FRONT TRANSMISSION 903310 SFH M3x10 Tighten gently 901408 SB M4x8 903310 Tighten SFH M3x10 gently 903308 SFH M3x8 NOTE ORIENTATION THREAD LOCK BEARING 902312 SH M3x12 950510 BB 5x10x4 STEP DETAIL TO ADJUST THE BELT TENSIONER: 1. Loosen upper screw 2.
  • Page 23 6. STEERING 903312 940508 342500 301159-O 342510 34251 0 307455 902310 333240 302663 352648 332561 902306 342500 352648 902310 970100 332660 333240 940508 902306 902308 301159-O ALU COUNTERSUNK SHIM - ORANGE (4) 352648 XT8 ADJ. TURNBUCKLE M3 L/R 62 MM - HUDY SPRING STEEL (2) 302663 COMPOSITE BALL JOINT 4.9MM - OPEN - V2 (8) 902306...
  • Page 24 6. STEERING NOTE NOTE NOTE ORIENTATION ORIENTATION ORIENTATION 85.5mm 85.5mm Follow the TECH TIP on page 34 to install the pivot balls NOTE ORIENTATION 902310 NOTE ORIENTATION SH M3x10 THREAD LOCK BEARING 902308 SH M3x8 BEARING STEP DETAIL ➋ 940508 BB 5x8x2.5 ➊...
  • Page 25 7. FUEL TANK & ELECTRONICS 902312 306310 902308 346190 Battery Pack Throttle servo (not included) (not included) 902308 907206 336120 336151 902312 902306 346181 346182 336000 903306 902308 902306 903306 Personal Transponder (not included) 336120 902306 346112 971035 336120 911312 338685 902316 332660...
  • Page 26 7. FUEL TANK & ELECTRONICS 1.5mm approx. 4mm 901312 Follow the TECH TIP on page Note the 90° angle difference between SB M3x12 34 to install the pivot balls the ball joints Thin Thick Use appropriate inserts for your servo, to ensure the 902308 servo has minimal play (movement) in the servo holder.
  • Page 27 Use an appropriate receiver battery pack ASSEMBLED VIEW Battery (not included) The RX8 accommodates standard 5-cell receiver packs or optional micro-size packs. Use tape to mount the receiver battery pack to the lower holder (not included).
  • Page 28 HEX SCREW FLANGED SH M4x10 (10) 338732 EXHAUST MOUNTING WIRE - EXTRA-LONG 930150 CARBIDE AXIAL THRUSTBEARING F5-10 5x10x4 348502 XCA (XRAY CENTRIFUGAL-AXIAL) CLUTCH SET - REVERSE - SMALL 930508 BALL-BEARING 5x8x2.5 (2) 348512 XCA CLUTCHBELL FOR SMALLER PINION GEARS - HUDY STEEL 964073 WASHER S 7x10x0.2 (10)
  • Page 29 TECH TIP FOR RX8 CLUTCH SHOE INITIAL POSITION FOR FLYWHEEL PINS To ensure that the RX8 clutch shoe works properly and for a long time, it is very important to run in the clutch shoe. Please follow these run-in steps to help ensure proper clutch...
  • Page 30 Insert ENDPLAY SHIMS here (approximately 0.7~1.0mm) NOTE ORIENTATION ➋ ➊ To tighten the 23T pinion gear use the optional To tighten the 18T pinion gear use the optional #339901 XRAY NT1 Pinion Tool (20~23T; 15~18T). #339901 XRAY NT1 Pinion Tool (20~23T; 15~18T).
  • Page 31 8. ENGINE & CLUTCH THREAD LOCK Most popular engines have a 37.8mm distance between mounting holes. all screws ENLARGE ø0.2~0.4mm ➋ Adjust gear mesh so there is minimal play between the gears. 911410 SHF M4x10 <37.8mm Too tight gear mesh will put excessive strain on all parts and damage the parts.

  • Page 32: Shock Absorbers

    E-CLIP 2.3 (10) 308316 COMPOSITE SHOCK BALL JOINT - OPEN (4) 970121 O-RING 12.1x1.6 (10) 308327-O ALU CAP FOR XRAY SHOCK BODY - ORANGE (2) 972030 SILICONE O-RING 3x2 (10) 308331 COMPOSITE FRAME SHOCK PARTS 4-STEP - SHORT 308352-O ALU SHOCK CAP-NUT WITH HOLE - ORANGE (2) 965023 C 2.3...
  • Page 33 9. SHOCK AbSORbERS CUTAWAY VIEW 970121 O 12.1x1.6 SHOCK OIL Be careful not to cross-thread ➊ the collar on the shock body. ➋ INCORRECT Shorter ball joint use only for FRONT REAR CORRECT FRONT Longer ball joint (available separately, not in the part tree) use only for REAR HINT: Pre-thread the ball joint using an M3 screw.
  • Page 34 9. SHOCK AbSORbERS TIGHTEN ➊ ➋ ➌ RELEASE FULLY 2-3 turns 100% REBOUND CHECK It is very important to push the shock shaft into the shock body slowly otherwise air can come into the shock body which would create bubles. REBOUND ADJUSTMENT AFTER THE SHOCK IS ASSEMBLED YOU HAVE TO SET THE SHOCK REBOUND.

  • Page 35: Final Assembly

    10. FINAL ASSEMbLy 306219 902308 338001-O REAR - LONG 308019 349400 336400 336401 902310 902306 901303 336400 336400 336401 336400 902306 Servo screw not included 349400 336400 338001-O FRONT - SHORT 336401 336400 358950 336401 902310 306219 COMPOSITE SET OF SERVO SHIMS (4) 901303 HEX SCREW SB M3x3 (10) 308019...
  • Page 36 10. FINAL ASSEMbLy 902306 SH M3x6 FRONT SHOCK INITIAL SETTING 902308 SH M3x8 306219 SHIM 3x6x3 REAR SHOCK INITIAL SETTING...
  • Page 37 10. FINAL ASSEMbLy DETAIL 901303 SB M3x3 Insert rod through hole in brake arm. Bend rod to proper shape. Thread 902310 SH M3x10 Do not overtighten screws; pivots must rotate freely NOTE ORIENTATION K = KO, JR, Airtronics, Sanwa F = Futaba, Robe ASSEMBLED VIEW H = Hitec Approx.
  • Page 38 10. FINAL ASSEMbLy Tires (not included) Cut 2 pieces of silicone tubing and install as follows: SILICONE TUBE MARKED AS RED = FROM MUFFLER TO FUEL TANK CAP SILICONE TUBE MARKED AS BLUE = FROM FUEL TANK TO CARBURETOR...
  • Page 39 CARb LINKAGE ADJUSTMENT NEUTRAL (IDLE) Approx. 0.5mm IDLE ADJUSTMENT SCREW Do not allow carburetor to close to less than 0.5mm. Turn on transmitter and receiver and set the throttle servo trim to the neutral position. Adjust the idle adjustment screw on the carburetor to open approx. 0.5-1mm. Adjust both collars on the carb and brake linkages accordingly.