Xray GTX8 Instruction Manual
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Xray GTX8 Instruction Manual

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  • Page 2 Fax: (214) 744-2401 excellent care of our customers. Email: info@teamxray.com Email: xray@rcamerica.com You can join thousands of XRAY fans and enthusiasts in our online community at: www.teamxray.com FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT. SAFETY PRECAUTIONS WARNING: This product contains a chemical known to the state of California to for maximum performance.
  • Page 3 XRAY does not pay nor refund shipping on any component sent to XRAY or Part or parts missing from this kit must be reported within 30 days of purchase. No its distributors for warranty.

  • Page 4: Symbols Used

    XRAY Set-up BOOK (HUDY #106631 300.000cSt) Book, XRAY will now be offering only the digital online version at our website 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 current updated version.
  • Page 5 HUDY Drive Pin Replacement Tool. premium HUDY drive pins #106050. 9. FUEL TANK & ENGINE GTX8 12. FINAL ASSEMBLY GTXE 1. DIFFERENTIAL GTXE GTX8 MANUAL STEPS ONLY FOR GTX8 MANUAL STEPS ONLY FOR GTXE MANUAL DUAL STEPS FOR GTXE & GTX8...
  • Page 6 GTXE GTX8 1. DIFFERENTIALS XRAY BALL-BEARING #930816 8x16x5 GREASE STEEL OPTION 355065 #930817 8x16x5 OIL STEEL OPTION #940816 8x16x5 GREASE RUBBER OPTION 940817 #940817 8x16x5 OIL RUBBER INCLUDED 980261 355022 971061 355031 355091 980261 355084 964030 971061 903312 355031 964060...
  • Page 7 GTXE GTX8 1. DIFFERENTIALS Graphite Grease (HUDY #106210) Ball-bearing with RUBBER covers. ➌ 940817 BB 8x16x5 ➋ Graphite Grease STEP DETAIL ➎ (HUDY #106210) DETAIL ➍ Use HUDY Ball-Bearing Grease or Oil for servicing: 964060 ➊ #106220 - Standard S 6x18x0.2...

  • Page 8: Front Transmission

    908312 352006 DIFF BULKHEAD BLOCK SET FRONT/REAR 901404 HEX SCREW SB M4x4 (10) 352041 GTX8.3 GRAPHITE FRONT SHOCK TOWER - CNC MACHINED 3.5MM 908312 HEX SCREW SOCKET HEAD CAP SCH M3x12 (10) 355115 BEVEL DRIVE GEAR 13T 930816 BALL-BEARING 8x16x5 STEEL SEALED - GREASE (2) 355236 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™...

  • Page 9: Rear Transmission

    2. REAR TRANSMISSION GTXE GTX8 XRAY BALL-BEARING 355640 980314 355472 LONG #930816 8x16x5 GREASE STEEL INCLUDED 355471 901404 #930817 8x16x5 OIL STEEL OPTION 355416 352006 355236 355115 930816 353040 352006 930816 908312 355005 REAR DIFF 908312 901404 HEX SCREW SB M4x4 (10)

  • Page 10: Rear Suspension

    GTXE GTX8 3. REAR SUSPENSION REAR ANTI-ROLL BARS #353418 ø1.8mm OPTION #353420 ø2.0mm OPTION #353422 ø2.2mm OPTION 901305 #353424 ø2.4mm OPTION 903308 #353425 ø2.5mm OPTION #353426 ø2.6mm OPTION #353428 ø2.8mm OPTION #353430 ø3.0mm INCLUDED 352006 #353432 ø3.2mm OPTION 353430 REAR SUSPENSION ARMS...
  • Page 11 TRACK WIDTH The new XRAY rear alu lower suspension holders provide even greater range of adjustment for the rear suspension. Using different combinations of eccentric bushings, fine adjustment of rear anti-squat, rear toe-in, rear roll center, and rear track-width can be obtained. For more information about the influence of rear anti-squat, rear toe-in, rear roll center and rear track width on car handling, please refer to HUDY Off-Road Set-up Book (#209099).
  • Page 12 3. REAR SUSPENSION GTXE GTX8 DETAIL 1.5mm 901312 SB M3x12 Install the pivot balls with Professional Multi Tool (HUDY #183011) STEP DETAIL ➍ 901303 SB M3x3 901305 SB M3x5 DETAIL ➌ 3x3mm 3x3mm ➌ 902318 SH M3x18 ➋ 903308 SFH M3x8 3x18mm ➊...
  • Page 13 4. REAR SUSPENSION GTXE GTX8 XRAY BALL-BEARING OFFSET WHEEL AXLES #355250 0mm OPTION #930816 8x16x5 GREASE STEEL OPTION #355251 +1mm OPTION #940816 8x16x5 GREASE RUBBER OPTION #355252 +2mm INCLUDED #931318 13x19x4 GREASE STEEL OPTION 902318 353160 #941318 13x19x4 GREASE RUBBER OPTION...
  • Page 14 GTXE GTX8 4. REAR SUSPENSION Ensure that the rear upright moves freely. 353370 If it does not move freely, use sandpaper SHIM 3x9x1 to thin both wheelbase adjustment shims. Shims for wheelbase adjustment 353370 SHIM 3x9x2 960030 N M3 Do not overtighten the self-locking nut.
  • Page 15 GTXE GTX8 4. REAR SUSPENSION INITIAL SETTING NOTE ORIENTATION 353354 SHIM 3x9x7 DETAIL 3x18mm 3x30mm DETAIL 902318 SH M3x18 902330 SH M3x30 INITIAL SETTING 960030 N M3 903312 SFH M3x12 3x20mm 902318 SH M3x18 3x18mm 902320 SH M3x20 960030 N M3...

  • Page 16: Front Suspension

    5. FRONT SUSPENSION GTXE GTX8 #333451 ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2) 909372 352324 352314 901410 357212 352314 902318 353371 352323 909395 352121-H 352006 901303 352498 333450 901305 352470 903308 901312 FRONT ANTI-ROLL BARS 352470 #352487 1.6mm...
  • Page 17 =308 =306 Outer position = 1mm or 1° from center =310 The XRAY alu front lower suspension holders provide even greater range of SET-UP adjustment for the front suspension. Using different combinations of eccentric BOOK The tables below describe the amounts of kick-up, front track-width change depending on the combinations bushings, fine adjustment of front kick-up, roll center, and front track-width of eccentric bushings used with 0 and 1mm, 1°...
  • Page 18 GTXE GTX8 5. FRONT SUSPENSION DETAIL 1.5mm 901312 SB M3x12 DETAIL Install the pivot balls with Professional Multi Tool (HUDY #183011) STEP DETAIL ➍ -2~0mm 901303 SB M3x3 901305 SB M3x5 DETAIL 3x3mm ➍ ➋ 902318 SH M3x18 ➌ 3x18mm...
  • Page 19 GTXE GTX8 6. FRONT SUSPENSION OFFSET WHEEL AXLES 353160 960030 #355250 0mm OPTION 902318 352621 #355251 +1mm OPTION 960030 #355252 +2mm INCLUDED 980263 352151 353170 355221 903308 902325 902412 355237 352378 355211 352293 941319 352287 352277 352245 352179 980317 357230...
  • Page 20 6. FRONT SUSPENSION GTXE GTX8 ➌ Marked “R“ SHORT ➊ 902412 ➋ SH M4x12 ➌ LONG ➊ Install the pivot balls with Professional Multi Tool (HUDY #183011) LEFT THREAD 34.4mm 34.4mm RIGHT THREAD 902305 SH M3x5 DETAIL ➋ Press pivot ball into...
  • Page 21 NUT M4 (10) 353083 COMPOSITE REAR BRACE 351133 GTXE.3 ALU CHASSIS - SWISS 7075 T6 (3MM) 902325 HEX SCREW SH M3x25 (10) 351134 GTX8.3 ALU CHASSIS - SWISS 7075 T6 (3MM) 903412 HEX SCREW SFH M4x12 (10) 903412 SFH M4x12...
  • Page 22 6. F&R ASSEMBLY GTXE GTX8 #353281 GRAPHITE BRACE SET for extra stiffness adjustment. 902325 SH M3x25 NOTE ORIENTATION 903412 SFH M4x12 960030 N M3 960040 N M4 903412 SFH M4x12...
  • Page 23 7. STEERING GTXE GTX8 BALL STUD 6.8mm WITH BACKSTOP #352658 L=6MM - M3x8 OPTION 903312 #352659 L=6MM - M3x11 OPTION 903310 903312 902312 351344 902318 902308 352580 352084 960030 940610 960040 352505 903412 960030 352514 352652 352576 352666 352514 903318...
  • Page 24 7. STEERING GTXE GTX8 INITIAL PRELOAD SETTING DETAIL 970121 DETAIL O 12.1x1.6 SET-UP BOOK SERVO SAVER 902308 SH M3x8 HUDY Tool Allen 3.0mm For servicing use Bearing Oil (HUDY #106230) 903410 SFH M4x10 940610 BB 6x10x3...
  • Page 25 7. STEERING GTXE GTX8 3x12mm DO NOT OVERTIGHTEN SCREWS DETAIL 3x10mm 3x12mm 3x10mm 3x12mm 902312 SH M3x12 903310 SFH M3x10 Check for free movement DETAIL After the top deck assembly check for free movement of steering system. 903412 903312 SFH M4x12...
  • Page 26 8. CENTER DIFF & BRAKE GTX8 #354010-G #354113 COMPOSITE GRAPHITE 2-SPEED GEARS 2-SPEED GEARS COMPOSITE CENTER DIFFERENTIAL SUPER-LIGHTWEIGHT VENTILATED BRAKE #345545 45T 2ND OPTION #345645 45T 2ND OPTION MOUNTING PLATE SET - GRAPHITE DISK - PRECISION-GROUND (2) #345546 46T 2ND INCLUDED...
  • Page 27 8. CENTER DIFF & BRAKE GTX8 Temporarily insert brake disk between pads to set DETAIL correct gap OVAL HOLE NOTE ORIENTATION 902316 ROUND HOLE SH M3x16 NOTE ORIENTATION Fibre pads together 0.5 mm NOTE ORIENTATION #354121 ASSEMBLY VIEW STEEL BRAKE PAD - LASER CUT (4)
  • Page 28 8. CENTER DIFF & BRAKE GTX8 NOTE ORIENTATION NOTE ORIENTATION 903308 OF ALL PARTS SFH M3x8 3x8mm 903412 SFH M4x12 #354010-G COMPOSITE CENTER DIFFERENTIAL MOUNTING PLATE SET - GRAPHITE 4x12mm SHIFT-POINT SCREW ➎ 901305 SB M3x5 ➍ SHOE-GAP SETSCREW ➊...
  • Page 29 8. CENTER DIFF & BRAKE GTX8 Use HUDY Ball-Bearing Grease or Oil for servicing: DETAIL 901404 #106220 - Standard SB M4x4 #106221 - Extra #106222 - Premium #106230 - Bearing Oil Ball-bearing with STEEL covers NOTE ORIENTATION NOTE NOTE 930816...
  • Page 30 GTXE 8. CENTER SOLID SHAFT & MOTOR COMPOSITE GEARS GRAPHITE GEARS #345548 48T OPTION #345648 48T OPTION 902330 #345549 49T INCLUDED #345649 49T OPTION #345550 50T OPTION #345650 50T OPTION 903308 354251 352290 901404 930816 901405 354011 358785 354260 903306 354033 354230 903412...
  • Page 31 GTXE 8. CENTER SOLID SHAFT & MOTOR NOTE ORIENTATION 901404 THREAD SB M4x4 LOCK THREAD LOCK 4x4mm 4x5mm 901405 SB M4x5 CUTAWAY VIEW Ball-bearing with STEEL covers Use HUDY Ball-Bearing THREAD Grease or Oil for servicing: LOCK 930816 #106220 - Standard BB 8x16x5 #106221 - Extra 4x4mm...
  • Page 32 8. CENTER SOLID SHAFT & MOTOR ALL SCREW FULLY ALL SCREW TIGHTEN GENTLY TIGHTEN 3x8mm 902330 SH M3x30 4x12mm 903308 903412 SFH M3x8 SFH M4x12 XRAY PINION GEAR #355819 OPTION #355820 OPTION #355821 OPTION #355822 OPTION 908312 #355823 OPTION SCH M3x12...
  • Page 33 358680 338584 908314 #358605 #358400 FUEL TANK 125CC WITH #358511 XRAY COMPLETE 4-SHOE CLUTCH SET FLOATING FILTER GT 2-SPEED 4-SHOE CLUTCH BELL - LIGHTWEIGHT #353250 GRAPHITE BRACE FOR CHASSIS SIDE GUARDS - SET CLUTCH SPRINGS (4pcs) 4-SHOE CLUTCH SHOES GRIP...
  • Page 34 ALU MONOBLOCK ENGINE MOUNT ALU STAND FOR ENGINE MOUNT ALU STAND FOR ENGINE MOUNT (FX, NOVAROSSI, MAX, SIRIO) (PICCO, REDS, ORION, LRP, OS, U. RACING) #358400 XRAY COMPLETE 4-SHOE CLUTCH SET DETAIL 4-SHOE CLUTCH SHOES GRIP #358457 ALU HARD (4) 1.00g OPTION HIGH #358458 ALU MED (4) 1.00g...
  • Page 35 #348520 OPTION Optional part for #358400 #348521 OPTION XRAY COMPLETE 4-SHOE CLUTCH SET TO TIGHTEN THE 16T OR 19T PINION GEAR 359051 USE THE OPTIONAL #349901 XRAY PINION BB 5x12x4 TOOL (19~21T / 16~18T). 5x12x4mm 908314 SCH M3x14 5x10x4mm 5x7x0.2mm...
  • Page 36 9. FUEL TANK & ENGINE GTX8 ALTERNATIVE 150CC FUEL TANK ALTERNATIVE 125CC FUEL TANK INITIAL SETTING #358605 FUEL TANK 125CC WITH FLOATING FILTER & TRANSIENT JET 353370 SHIM 3x9x2 3x16mm 3x16mm DETAIL 902316 SH M3x16 2.2x6mm 3x9x2mm 903310 SFH M3x10...
  • Page 37 GTXE 10. RADIO CASE Speed Controller Servo Screw (NOT INCLUDED) 902312 (NOT INCLUDED) 902308 Servo Grommet 306310 (NOT INCLUDED) 356200 907206 352460 LiPo Battery Pack Steering Servo 902314 (NOT INCLUDED) (NOT INCLUDED) 352670 902308 302610 902312 336000 352670 356119 Receiver 960030 (NOT INCLUDED) 356120...
  • Page 38 10. RADIO CASE GTXE Servo Screw (NOT INCLUDED) 902312 SH M3x12 902308 SH M3x8 907206 Antenna Receiver (NOT INCLUDED) If the receiver box has 2 different-size openings for cable entry (narrow and wider), cut away the tab for the appropriate opening to allow the cables to fit properly.
  • Page 39 GTXE 10. RADIO CASE 902314 SH M3x14 903412 SFH M4x12 960030 N M3 Speed Controller (NOT INCLUDED) 903410 Battery SFH M4x10 (NOT INCLUDED) 960040 N M4 Double-Sided Tape HUDY #107875 (NOT INCLUDED) Velcro Battery Strap Cut the foam as needed to fill in space between the batteries and holder.
  • Page 40 10. RADIO CASE GTX8 Servo Screw (NOT INCLUDED) 902306 356200 (NOT INCLUDED) Personal transponder 902312 (NOT INCLUDED) 902310 902314 356003 352460 352460 352670 306310 902310 302611 960030 902312 356003 902314 356003 Receiver Servo Grommet (NOT INCLUDED) (NOT INCLUDED) 356003 Steering Servo...
  • Page 41 10. RADIO CASE GTX8 step Servo screw (NOT INCLUDED) Plug the connectors into the receiver in Step 2 902314 SH M3x14 NOTE NOTE ORIENTATION Use the shims only if the servo is too high and extends from the case step...
  • Page 42 358166 GT SHOCK SHAFT 46MM (2) 358018 COMPOSITE SET OF SHIMS FOR SHOCKS - (2) 358196 XRAY GT SPRING - 3 DOTS (2) 358020 COMPOSITE SHOCK PARTS 358032 SHOCK PISTON SET 8-HOLE (1.2; 1.3) 10-H. (1.1MM) - DELRIN - V2 960026 NUT M2.5 - SHORT (10)
  • Page 43 GTXE GTX8 1 1. SHOCK ABSORBERS DETAIL 358040 Install the piston with Professional Multi S 2.5x6x0.5 6 holes Tool (HUDY #183011) ø1.2mm pistons 960026 N M2.5 NOTE ORIENTATION #358163 GT SHOCK SHAFT 43MM (2) DO NOT OVERTIGHTEN TIGHTEN GENTLY DETAIL The self-locking nut is overtightened, causing The self-locking nut is gently tightened.
  • Page 44 GTXE GTX8 1 1. SHOCK ABSORBERS DETAIL 970180 O 18x1.8 FRONT SHOCKS REAR SHOCKS Professional Multi Tool (HUDY #183011) 0.5mm DETAIL 0.5mm DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND) Follow the steps below to set the shock rebound to the default setting of 0%.
  • Page 45 1 1. SHOCK ABSORBERS GTXE GTX8 SHOCK PRELOAD DETAIL 971034 O 3.4x2 SET-UP BOOK SPRING RATE SHOCK PRELOAD RIDE HEIGHT ALTERNATE SHOCK REBOUND SETTING (50% AND 100%) The default shock rebound setting is 0% (as described on page 40). Alternatively, you may set the shock rebound setting to 50% or 100% as described below. Remove the shock springs before performing shock rebound adjustment.

  • Page 46: Final Assembly

    358047 STEEL SCREW SHOCK PIVOT BALL WITH HEX (2) 358811 AIR FILTER ELBOW - LOW PROFILE 358106 GTX8 SHOCK ABSORBERS V2 (2) 358821 AIR FILTER BODY & CAP - LOW PROFILE 358841 AIR FILTER FOAM & OIL - LOW PROFILE...
  • Page 47 12. FINAL ASSEMBLY GTX8 SHORTER LONGER DETAIL NOTE ORIENTATION 902318 902319 SH M3x18 SH M3x18 LEFT thread INITIAL SETTING 960030 STANDARD N M3 M3x18 screw # 352390 GT ALU SHOCK PLATE - DETAIL SWISS 7075 T6 (L+R) 3x18mm SET-UP INITIAL SETTING...
  • Page 48 12. FINAL ASSEMBLY GTX8 SERVO BRACE LINK 901303 SB M3x3 SILICONE NOTE TUBING ORIENTATION 961022 S 2.2 8mm THREAD 4 . 3 m 10mm THREAD Servo screw (NOT INCLUDED) 8mm THREAD 3x6x2mm 10mm THREAD NOTE ORIENTATION CONICAL SHIM 3x6x2mm 303123...
  • Page 49 12. FINAL ASSEMBLY GTX8 901306 SB M3x6 approx. 52mm NOTE ORIENTATION Cut off remaining 902310 material SH M3x10 901306 SB M3x6 approx. 37mm NOTE ORIENTATION Cut off remaining material 902325 DETAIL SH M3x25 NOTE ORIENTATION 960030 N M3 ➐ Wheel & Tire (NOT INCLUDED) Wheel &...
  • Page 50 12. FINAL ASSEMBLY GTX8 #358832 AIR FILTER RAIN COVER 902308 SH M3x8 Apply #106240 HUDY air filter oil and follow the engine instructions to service the air filter. Cut the silicone tube depending on engine and muffler. Use the plastic clips to hold the tubes together.
  • Page 51 NUT M4 (10) 351450 GT COMPOSITE CENTER BODY POST HOLDER 355261 WHEEL NUT - RIBBED - HARD COATED (2) 358106 GTX8 SHOCK ABSORBERS - V2 (2) 358047 STEEL SCREW SHOCK PIVOT BALL WITH HEX (2) 351220 GT FOAM BUMPER 901306...
  • Page 52 GTXE 12. FINAL ASSEMBLY SHORTER LONGER NOTE ORIENTATION 902318 902319 SH M3x18 SH M3x18 LEFT thread STANDARD 960030 M3x18 screw N M3 On the front right arm use the SILVER M3x18 screw - this screw has LEFT THREAD SET-UP 3x18mm BOOK SHOCK ABSORBERS DETAIL...
  • Page 53 GTXE 12. FINAL ASSEMBLY DETAIL 901306 SB M3x6 3x6mm NOTE ORIENTATION NOTE 902312 ORIENTATION SH M3x12 3x12mm 903414 3x6mm SFH M4x14 960030 N M3 960040 N M4 #351222 GT FOAM BUMPER - LIGHT 4x14mm 902316 SH M3x16 3x16mm 903416 SFH M4x16 4x16mm...
  • Page 54 GTXE 12. FINAL ASSEMBLY 901306 SB M3x6 approx. 52mm 902310 SH M3x10 NOTE ORIENTATION Cut off remaining material 901306 SB M3x6 approx. 37mm NOTE ORIENTATION Cut off remaining material 902325 DETAIL SH M3x25 NOTE ORIENTATION 960030 N M3 ➐...
  • Page 55 12. FINAL ASSEMBLY GTXE Wheel & Tire (NOT INCLUDED) To tighten the screw you can also use the #107570 HUDY 17mm Wheel Nut Tool WHEEL NUTS #355261 OPEN INCLUDED Wheel & Tire #293560 COVERED OPTION (NOT INCLUDED) #355265 COVERED OPTION #359730 GTX BODY (NOT INCLUDED) Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the ➊...

  • Page 56: Maintenance

    GTXE GTX8 MAINTENANCE ENGINE OPERATION PREPARING TO OPERATE THE ENGINE • Never modify the engine or muffler. • For proper engine break-in, please refer to the manual that came with the engine. • Confirm the position of needle and idling before running. Be sure to run a new engine smoothly.

  • Page 57: Throttle Linkage Adjustment

    THROTTLE LINKAGE ADJUSTMENT GTX8 NEUTRAL (IDLE) ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS 0.5mm ~1mm ENGINE IDLING IDLING ADJUSTMENT SCREW. Use to adjust the idle setting of the • Turn on the transmitter and receiver and set the engine control servo trim to the neutral position.
  • Page 58 199310 108202 199911 107855 108701 108212 109880 104005 108870 107030 107704 108190 293111 108805 107701 181110 108841 * 1/8 Truggy 106245 107717 293560 107865 188981 181030 181040 181034 293540 107744 181050 107581 107742 112071 112571 164071 104140 #104005 HUDY Air Vac - Vacuum Pump - 1/8 Off-Road #107612 Limited Edition - Exhaust Spring / Caster Clip Remover #108190 HUDY Alu Tray for Parts #104140 HUDY Engine Break-In Bench...
  • Page 59 #112545 Limited Edition - Allen Wrench # 2.5mm #181050 HUDY Spring Steel Turnbuckle Wrench 5 mm #293540 Air Filter Foam & Oil (10) - XRAY XB8 Low Profile Style #112571 Power Tool Tip Allen 2.5 x 90 mm #181090 HUDY Special Tool For Turnbuckles & Nuts #293560 HUDY Alu Wheel Nut with Cover - Ribbed (2) #113045 Limited Edition - Allen Wrench # 3.0mm...
  • Page 60 RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.com /TeamXray /TeamXray /TeamXray /XrayRacing /+TeamXrayRC /XrayRacing...

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