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Serpent Model Racing Cars BV 960 Instruction Manual

1/8th scale 4wd competition car
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1/8TH SCALE 4WD COMPETITION CAR
INSTRUCTION MANUAL

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Summary of Contents for Serpent Model Racing Cars BV 960

  • Page 1 1/8TH SCALE 4WD COMPETITION CAR INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    Serpent 960. Fine-tuning the initial setup is an easy to use, assemble, and set up. You are now part of...
  • Page 3 Connect one item to another Gap between two items Refer to Serpent 960 Setup Book - Section A: Basic Setup Refer to Serpent 960 Setup Book - Section B: Advanced Setup Apply graphite grease (GR), threadlock (TL), CA glue (CA) or Serpent’s One-way Lube (OW).

  • Page 4: Front Assembly

    1.0 FRONT ASSEMBLY STEP 1.1 BAG 1 STEP 1.2 12x21mm Change the position of BOTH eccentric hubs to adjust front belt tension. Both hubs should have the same position. - 4 -...
  • Page 5 STEP 1.3 M4x12mm Insert setting - hole mounted to outside Learn about front roll center adjustment STEP 1.4 BAG 2 M4x8mm 6x13mm STEP 1.5 M4x4mm Completed assembly - 5 -...
  • Page 6 STEP 1.6 BAG 3 M3x6mm M3x8mm M3x8mm M4x10mm Servo Saver Ackermann insert position 6x10mm 0.5mm STEP 1.7 BAG 4 M3x8mm M4x6mm M4x6mm M4x6mm M3x12mm M3x16mm M3x8mm Set front anti-roll bar Press anti-roll bars into mounts far enough so the bars do not bind when Set front downstops the suspension is compressed and wheelbase...
  • Page 7 STEP 1.8 M3x3mm M5x6mm M5x6mm M5x6mm Spacer Placement M3x3mm Set caster and wheelbase STEP 1.9 M3x3mm Block 1 Press spring into end of front axle until it snaps into place. STEP 1.10 Block 2 BOTTOM Set front track-width and camber Block 1 - 7 -...
  • Page 8 STEP 1.11 Assemble L & R steering rods: 87.5mm Set front toe STEP 1.12 M3x6mm M4x8mm M3x6mm M3x6mm M4x8mm M4x8mm - 8 -...

  • Page 9: Rear Assembly

    2.0 REAR ASSEMBLY STEP 2.1 BAG 6 Use the supplied 2 sided tape to attach brake pads to plates M3x6mm 2.5x20mm 6x10mm STEP 2.2 Note orientation of front inserts. Ensure BOTH inserts have the same position. M2.5x12mm M5x6mm M4x12mm Left Block Right Block 6x13mm - 9 -...
  • Page 10 STEP 2.3 BAG 7 M4x8mm Default Tighter Looser Change the position of BOTH eccentric hubs to adjust rear belt tension. Both hubs should have the same position. STEP 2.4 M3x6mm - 10 -...
  • Page 11 STEP 2.5 M4x4mm Note orientation of front and rear inserts. Ensure BOTH 41.8mm inserts have same position. STEP 2.6 BAG 8 Assemble both rear hubs using the indicated steps. Press spring into end of rear 2.5x22mm axle until it snaps into place. 12x18mm STEP 2.7 M4x20mm...
  • Page 12 STEP 2.8 BAG 9 M4x4mm 5x8mm Assemble L & R linkages 50mm STEP 2.9 M3x3mm Slide pivot shafts through ball- bearings one at a time. Center the anti-roll bar assembly before securing in place with collars. STEP 2.10 M3x6mm M3x6mm - 12 -...
  • Page 13 STEP 2.11 M3x10mm M3x16mm M3x10mm M3x16mm Default Rear Body Mount Mounting Position M3x10mm Completed assembly - 13 -...

  • Page 14: Radio Plate Assembly

    3.0 RADIO PLATE ASSEMBLY STEP 3.1 BAG 10 M3x6mm Steering Linkage M3x6mm M3x16mm 45.5mm M4x10mm M3x16mm STEERING SERVO Servo output shaft must be towards FRONT of the car. Note the orientation of the servo mounting screw blocks. Reverse the default orientation to mount a smaller servo.
  • Page 15 OPTION 1: Laydown Throttle Servo STEP 3.3 M3x6mm M3x10mm Use the following servo arms with these brands of servos. 23 - Sanwa / KO / JR 24 - Hitec 25 - Futaba Throttle Linkage 36mm OPTION 1: Laydown Throttle Servo STEP 3.4 M3x12mm Securely attach receiver...
  • Page 16 OPTION 2: Upright Throttle Servo STEP 3.5 M3x16mm M3x12mm M3x16mm M3x16mm M3x12mm Securely attach receiver to mounting plate. RACING TIP: To protect the receiver against fuel and moisture, seal the wired receiver into a rubber balloon before mounting it. STEP 3.6 BAG 11 M3x10mm M3x3mm...

  • Page 17: Radio Plate Mounting

    4.0 RADIO PLATE MOUNTING STEP 4.1 M4x10mm M4x12mm M4x10mm M4x12mm M4x10mm M4x12mm STEP 4.2 M4x10mm Servo Saver Steering Linkage - 17 -...
  • Page 18 STEP 4.3 M4x4mm STEP 4.4 BAG 12 Unscrew the bottom half of the pre-assembled shock absorbers. FILLING Fill the shock body with the supplied shock absorber oil. BLEEDING Let the oil settle and allow the air to escape. Slowly move the piston up and down to release any trapped air bubbles.
  • Page 19 STEP 4.5 With the shock body filled with oil, slowly screw the bottom half of the pre-assembled shock back onto the shock body. IMPORTANT! Do not cross thread! Oil will overflow through the Front shock built-in bleed channel in the 68mm threads.
  • Page 20 STEP 4.7 Note the upper shock mount holes used. Set front shock position Learn about shock adjustment (damping, springs, preload) STEP 4.8 M3.5x13mm M4x10mm STEP 4.9 M4x10mm M4x16mm - 20 -...

  • Page 21: Gearbox Assembly

    5.0 GEARBOX ASSEMBLY STEP 5.1 BAG 13 SHIFT POINT screw M3x12mm GAP SETTING screw M3x3mm Start with screw head flush with bottom edge of hole. Both screws must be set equally. Learn about shift point and shoe gap TO SHIFT LATER TO SHIFT EARLIER Tighten both screws equally Loosen both screws equally...
  • Page 22 STEP 5.3 M3x6mm 2nd Gear 6x13mm 45 T 6x10mm STEP 5.4 M3x8mm 3x14mm ADJUSTING THE 2-SPEED SHOE GAP Loosed the two gap-setting set screws to allow the shoes to rest on the drive adaptor. Install the 2-speed shoes in the 2nd gear drum, but do NOT install the 1st gear. There should be equal but minimal spacing between the 2-speed shoes and the 2nd gear drum.

  • Page 23: Centax Assembly

    6.0 CENTAX ASSEMBLY STEP 6.1 BAG 14 IMPORTANT! Use the cone that comes with your engine STEP 6.2 Learn about clutch shoes and flyweights - 23 -...
  • Page 24 STEP 6.3 Initial clutch spring tension 1.2mm Learn about clutch spring preload STEP 6.4 Note inside shoulders 2nd Gear 19 T 1st Gear 16 T STEP 6.5 M3x16mm 5.2mm 5.0mm IMPORTANT! Install thrust bearing plates as shown Large inner dia. Small inner dia.
  • Page 25 STEP 6.6 ADJUSTING THE CLUTCH GAP Install only the clutchbell and the thrustbearing assembly on the engine crankshaft. Push the clutchbell onto the clutch shoe, and then measure the distance A as indicated. Push Pull the clutchbell away from the clutch shoe, and then measure the distance B as indicated. The clutch gap is A –...

  • Page 26: Final Assembly

    7.0 FINAL ASSEMBLY STEP 7.1 BAG 15 M3x16mm STEP 7.2 M3x16mm M4x10mm Orientation of belt tensioner bearings - 26 -...
  • Page 27 STEP 7.3 BAG 16 M2.5x8mm STEP 7.4 M3x6mm - 27 -...
  • Page 28 OPTION 2: Upright Throttle Servo STEP 7.5 M3x6mm Completed throttle/brake linkage STEP 7.6 Side belt tension adjustment Looser M4x10mm Tighter M4x6mm - 28 -...
  • Page 29 STEP 7.7 IMPORTANT! Before installation, check that fuel line and pressure line are free from debris and not blocked. STEP 7.8 M3x6mm Securely attach battery pack to mounting plate. - 29 -...
  • Page 30 Serpent 960 ! To prepare your car for its first run, go to the Serpent 960 Setup Book and follow the setup instructions in Section A: Basic Setup. The setup described there is a good starting point. After rebuilding the chassis, or in case you become lost with your setup, always return to the setup described there.
  • Page 32 Serpent Model Racing Cars BV PO Box 180, 2100 AD, Heemstede The Netherlands, Europe...