INSTRUCTION MANUAL
INTRODUCTION SAFETY Thank you very much for selecting this Serpent rc car and thus become a member of the ever growing worldwide Serpent racing family. Serpent started in 1980 and has been growing its product-line and fan -base ever since. Read and take note of the ‘Read this First section’ before proceeding to assemble the car-kit. This car-kit is intended for persons aged 16 or older.
HOW TO USE THE MANUAL LINES DESCRIPTION ICONS DESCRIPTION Each step contains a variety of numbers, lines, and symbols. The numbers represent the order in which the parts should be assembled. The lines are described below. Each step contains a variety of symbols described below. 1 2 3 Step number; the order in which you should assemble the indicated parts Carefull, read and check very well. Length after assembly Apply a small amount of cyano glue. Use wear protection for eyes and hands.
CENTER DIFF ASSEMBLY CENTER DIFF BAG STEP 1 M3x4 1.1 STEP 2 Note the correct pin location. 3.5x12x0.2 2.5x13 8x16x5 3.5x12x0.2 1.2 Use silicone oil to hold seal in position. 3.5x12x0.2 8x16x5 Note the correct pin location. 2.5x13 2.5x13 8x16x5 4 M3x4 3.5x12x0.
STEP 3 STEP 4 Fill the differential with silicone oil 1 mm above the crosspin, do NOT M3x12 please check the default setupsheet. OIL LEVEL M3x12 1-1.5 mm AMOUNT OF OIL IN THE DIFFS Use a digital scale to measure the exact amount of oil in the diff. Differential weight with volume compensators = 45.7-45.8 grams Differential weight without volume compensators = 45.7-45.
FR/RR DIFF ASSEMBLY STEP 5 FR/RR DIFF BAG 5.1 STEP 6 Note the correct pin location. M3x4 3.5x12x0.2 2.5x13 8x16x5 5.2 3.5x12x0.2 Use silicone oil to hold seal in position. 3.5x12x0.2 8x16x5 Note the correct pin location. 2.5x13 2.5x13 8x16x5 6 M3x4 3.5x12x0.
STEP 7 STEP 8 Fill the differential with silicone oil 1 mm above the crosspin, do NOT please check the default setupsheet. M3x12 OIL LEVEL M3x12 1-1.5 mm AMOUNT OF OIL IN THE DIFFS Use a digital scale to measure the exact amount of oil in the diff. Differential weight with volume compensators = 44.70-44.80 grams Differential weight without volume compensators = 44.70-44.
CENTRAL ASSEMBLY STEP 9 BAG 1 STEP 10 12.1 Rear Front Rear Front Diff mounts are NOT symmetrical. Please check below picture to ensure front and rear bracket assembly are assembled properly. Rear Front 1 M3x16 Flanged 2 Do NOT overtighten the screws. 12.
STEP 11 M4x12 M4x12 M4x12 9
STEP 12 M3x10 12.1 12.2 2 STEP 13 3 Long 2 M3x4 M3x4 1 Short Nylock nut M3 3.2x7x0.5 1 M3x12 BRAKE CAMS Rear Note the correct brake wires position. Front Rear The long cam is assembled in the front bracket, the short one in the rear bracket . M3x12 10 3.2x7x0.
STEP 14 STEP 15 BAG 2 14.1 2.5x13 M3x12 flanged M3x14 M5x6 14.2 5x13x4 NSK Note the correct grommet position. diff may feel a little tight. The connected parts need at least an hour run-time to create a perfect match. Attention: When you assemble the diff with too much initial play, the gears will not run-in properly and may wear quickly. After 1 or 2 hours of running the car, re-check the gear-mesh between the ring gear and the pinion. All parts should have run-in properly now.
REAR ASSEMBLY STEP 16 16.1 STEP 17 After 1 or 2 hours of running the car, re-check the gearmesh between the ring gear and the pinion. All parts should have run-in properly. You may add or remove 13x16x0.1 shims as needed. 13x16x0.1 13x16x0.1 16.2 M3x16 M3x16 M3x22 M3x16 M3x22 13x16x0.
STEP 18 18.1 STEP 19 BAG 3 Tighten anti-roll bar cap until there is no play, and it moves freely. ANTIROLL BAR ROD LENGTH 34 mm 1 18.2 M2.5X6 2 4 M3X16 3 REAR ANTISQUAT INSERTS CHART REAR TOE IN INSERTS CHART M2.5X6 M2.
STEP 20 STEP 21 M3X3 Make correct holes in the mudguards as required. M3X3 5X8X2.5 Flanged M3X8 REAR ANTIROLL BAR ASSEMBLY M3X8 5X8X2.
STEP 22 22.1 BAG 4 2.5x13 3 2 13x19x4 4 1 Apply shims size 8x11x0.1 and/or 8x11x0.2mm as needed to remove play. 8x16x5 3x17 5 6 M5x4 Note the correct coupler assemby. 22.2 REAR DEFAULT WHEELBASE SHIMS REAR UPRIGHT POSITION Nylock Nut M3 2.5mm 2.5x13 1.25mm 3x17 13x19x4 8x16x5 8x11x0.1 8x11x0.
STEP 23 BAG 5 23.1 REAR CAMBERLINK LENGTH 17.7 mm 23.2 Nylock Nut M3 Flanged Nylock Nut M3 REAR CAMBERLINK DEFAULT POSITION 3.2x7x0.5 M3X20 M3X22 M3x20 16 3.5x7x0.
STEP 24 STEP 25 M3x16 Nylock Nut M3 M3x25 M4x12 M4x20 M3x16 M3x25 Nylock Nut M3 M4x12 M4x20 17
STEP 26 26.1 STEP 27 BAG 6 27.1 After 1 or 2 hours of running the car, re-check the gearmesh between the ring gear and the pinion. All parts should have run-in properly. You may add or remove 13x16x0.1 shims as needed. 2.5x13 13x16x0.1 26.2 M5x6 5x13x4 NSK 8x16x5 NSK 27.2 13x16x0.1 After building the differential with new gears, new differential case and bearings, the diff may feel a little tight. The connected parts need at least an hour run-time to create a perfect match.
FRONT ASSEMBLY STEP 28 STEP 29 BAG 7 29.1 29.2 Tighten anti-roll bar cap until there is no play, and it moves freely. ANTIROLL BAR ROD LENGTH M3x16 M2.5X6 34 mm M2.5X6 M3x16 M2.
STEP 30 STEP 31 M3X3 M3X3 FRONT SUSPENSION KICKUP INSERTS M3x16 20 5X8X2.5 Flanged M3X16 FRONT REAR INSERTS FRONT ANTIROLL BAR ASSEMBLY 5X8X2.
STEP 32 32.1 BAG 8 STEERING ARMS Steering arm 2 is included in the kit. 2.5x13 2 3 M3x10 7 Apply shims size 8x11x0.1 and/ or 8x11x0.2mm as needed to remove play. 8x16x5 3x17 1 5 4 Note the correct coupler assemby. 13x19x4 M5x4 6 32.2 32.3 on the shaft with the grubscrew. 2.5x5x0.4 M4x6 M2.5X6 3 1 M4x6 2 Nylock Nut M3 M3X3 3x17 2.5x13 13x19x4 8x16x5 8x11x0.1 8x11x0.2 M5x4 M3x10 M2.5x6 2.5x5x0.
STEP 33 BAG 9 33.1 FRONT CAMBERLINK LENGTH 16.7 mm 33.2 Nylock Nut M3 Flanged FRONT CAMBERLINK DEFAULT POSITION 3.2x7x0.5 M3x20 Nylock Nut M3 M3x20 M3x20 22 3.5x7x0.
STEP 34 STEP 35 M4x10 M4x10 M4x12 M4x12 M4x20 M4x20 M4x8 M4x8 M4x10 23
STEERING ASSEMBLY STEP 36 BAG 10 36.2 36.1 STEP 37 37.1 5x8x2.5 STEERING TRACKROD LENGTH 5x8x2.5 3x6x0.5 3x6x0.5 37.2 9 mm Nylock Nut M3 M3x12 3x7.5x1 M2x10 M2x10 24 The servo saver spring should be preloaded 4.5mm. Also notice the correct orientation of the collar. M3x20 4.5 mm M3x12 3x6x0.5 Note correct position of the conical shim. 3x7.5x1 Conical M3x20 5x8x2.5 M3x20 3x7.5x1 3x7.
STEP 38 STEP 39 BAG 11 M3x14 M4x12 M3x20 6x10x3 M4x10 M3x10 M3x20 Nylock Nut M3 3x7.5x1 Conical Nylock Nut M3 3x7.5x1 Nylock Nut M3 Nylock Nut M3 Flanged 3x7.5x1 Conical 3x7.5x1 Nylock Nut M3 Flanged 6x10x3 M3x20 3x7.5x1 Conical Nylock Nut M3 Flanged M3x12 3x7.
STEP 40 STEP 41 Nylock Nut M3 2 M4x30 Put thread lock in all the M3x6 screws 1 M3x6 Nylock Nut M4 Flanged 2 M3x6 1 M3x12 M3x12 26 Nylock Nut M3 M4x30 Nylock Nut M3 Flanged M3x6
RADIO ASSEMBLY STEP 42 BAG 12 42.1 STEP 43 M3x16 Flanged M3x16 Flanged 19.3 - 19.6 mm STEERING LINK LENGTH Between differnet servo brands there could be slight differences. 42.2 Nylock Nut M3 M3x8 2 1 Check how many teeth your servo spline has (23, 24 or 25) and use the right lever. 3x7.5x1 Conical 1 SERVO SPACERS Note correct position of the conical shim. 3x7.
STEP 44 M2x10 STEP 45 M2x10 M3x5 M2x10 Assembly detail in case of NOT using a switch. Assembly detail in case of using a larger transponder.
STEP 46 46.1 STEP 47 2 M2x10 M2x10 Apply the supplied decal on the battery cover. 46.2 2 3x7.5x1 Conical 1 M3x3 M2x10 1 Apply the supplied decal on the receiver cover. Nylock Nut M3 M4x12 M4x12 M4x12 M2x10 M3x3 M4x12 3x7.
STEP 48 STEP 49 THROTTLE / BRAKE SPOKE LENGTHS Note the correct orientation of the brake balls . 46 mm THROTTLE THROTTLE ASSEMBLY 65 mm BRAKE M3x3 2 2 M3x3 M3x3 4 1 M3x12 M3x3 6 5 3.5x7x0.5 3 5 M3x5 4 M3x8 Check how many teeth your servo spline has (23, 24 or 25) and use the right lever. THROTTLE / BRAKE ASSEMBLY M3x3 30 3.5x7x0.
SHOCKS ASSEMBLY STEP 50 BAG 13 FR SHOCKS / BAG 14 RR SHOCKS STEP 51 50.1 2.5x6x0.5 51.1 Nylock Nut M2.5 50.2 Insert the o-ring inside the spring collar. Use some silicone oil during the assembly. Note the correct position of the o-ring . 1 Note the correct orientation of the shock spacers . 2 51.2 50.3 Use some silicone oil during the assembly. 2.5x6x0.5 Nylock Nut M2.
STEP 52 52.1 Push the membrane into the shock cap. 52.2 1- Fill up with sillicone oil fully using the silicone oil supplied in the kit. For the correct cst value please check the default setupsheet. STEP 53 52.3 SHOCKS LENGTH: Measure the 1-Bleed: push the shock-rod all the way in slowly, to allow excessive oil to escape. shock length fully extended. FRONT REAR 2- With shockrod fully in, mount the o-ring and screw. M2.3x4 2- Extend the shockrod fully 36.
STEP 53 STEP 54 M3x25 1 M3x25 Nylock Nut M3 Flanged 1 M3x6 3 2 M3x6 3 2 M3x6 3 M3x6 Nylock Nut M3 Flanged 2 2 REAR SHOCKS DEFAULT POSITION FRONT SHOCKS DEFAULT POSITION M3x25 3 Nylock Nut M3 Flanged M3x6 M3x25 Nylock Nut M3 Flanged M3x6 33
FINAL ASSEMBLY STEP 55 BAG 15 55.1 55.3 Nylock Nut M3 M3x16 Flanged FUEL TANK INSERTS M3x18 The fuel-tank features a premounted 3cc insert. You can remove it if needed as shown. M3x14 M2x6 55.
CLUTCH AND ENGINE ASSEMBLY STEP 56 BAG 16 56.1 STEP 57 Push the long leg of the spring in the inner hole of the clutch shoe. Do not fully tighten the M3x14 screws till Step 61. M3x14 56.2 M3x14 5x8x0.1 5x10x4 3.2x7x0.5 5x8x0.3 5x8x0.1 5x10x4 5x8x0.3 3.2x7x0.
STEP 58 STEP 59 1- Assemble and fully tighten the M4x10 screws. 2- Position the engine in such way on the engine mount that the gearmesh is correct. 3- Fully tighten M3x14 screws assembled during the Step 60. M5x4 If the engine used is an OS (or OS based engines like Mx), Alpha and SH, it might be needed to trim off some plastic from the center diff cover to give the carburetor enough clearance over the brake plates. This could be done with a hobby knife.
STEP 60 BAG 17 37
STEP 61 61.1 STEP 62 M3x18 2 oil ( not included). Do NOT use silicone oil. M3x6 ANGLED WING SPACERS CHART 61.
STEP 63 STEP 39
STEP 64 1- Cut the body along the cutting line with special scissors (not included). Make holes for the bodypost and antenna as needed with a body reamer (not included). Make a longer bodypost 2 2- Before painting the body, apply the precut masking sheet elements to the inside of the body. Follow the cleaning & painting instructions supplied by the polycarbonate paint supplier you choose. 3- Apply the Serpent and Cobra logo-decals on the body and wing.
EXPLODED VIEWS INDEX DIFFERENTIALS EXPLODED VIEW CENTRAL EXPLODED VIEW REAR EXPLODED VIEW FRONT EXPLODED VIEW STEERING EXPLODED VIEW RADIO EXPLODED VIEW SHOCKS EXPLODED VIEW CLUTCH EXPLODED VIEW FINAL 1 EXPLODED VIEW FINAL 2 EXPLODED VIEW 42 43 44 45 46 47 48 49 50 51 41
DIFFERENTIAL EXPLODED VIEW 600376 110115 600200 601067 110502 600421 110211 600214 601062 601063 601064 opt 601065 opt 600376 601062 601062 600214 601062 601060 601072 opt 601068 HTD diff set 44T fr/rr SRX8 601069 HTD diff set 46T center SRX8 110211 601062 600421 600214 601061 601059 110127 110502 600200 601064 601065 601072 42 HTD spur gear 47T SRX8 HTD spur gear 48T SRX8 HTD diff pin 10T alu (2) SRX8
CENTRAL EXPLODED VIEW 110402 110401 600747 110109 110109 110115 600746 110146 600746 600742 600743 600748 600744 600829 110127 600745 600829 601069 600744 600829 600748 600743 600742 110122 110146 600742 110122 600829 600974 600721 opt 110105 600721 Chassis alu hard coated SRX8 43
REAR EXPLODED VIEW 110402 601066 600770 opt 110142 600828 600795 600795 110224 110141 600365 600197 110402 600780 600781 1393 600365 600834 600820 600851 opt 600852 opt 600973 600777 opt 600986 opt 110148 110431 110432 110502 600847 600730 opt 110141 110107 110116 600735 600185 600237 opt 600238 600338 opt 600339 opt 600434 opt 600684 opt 600969 opt 600970 opt 600971 opt 600972 opt 600823 600733 110211 600102 110193 110401 803134 600484 opt 1312 803134 1312 600484 opt 110116 600192 60
FRONT EXPLODED VIEW 600102 110211 600733 600197 600846 600731 opt 600794 110441 600732 110107 110110 600737 110401 601068 600723 1312 600823 110501 600723 110116 803134 110141 600823 110502 601058 110116 803134 600484 opt 1312 600741 110148 110431 1396 601056 600787 601057 110130 110440 601055 600484 600485 600851 600852 600731 600887 600888 600936 110116 110211 600102 600834 600197 600193 600780 600485 opt 600781 110130 1393 600888 opt 600793 100119 110116 601057 Antirollbar spacer alu
STEERING EXPLODED VIEW 110108 110102 110184 110102 110105 600729 110108 600754 110183 110402 600749 600844 opt 600180 1321 600170 110405 110192 110108 600749 600845 opt 110402 110127 110402 110127 600180 600827 110188 600844 600845 46 Transmission brace alu FR SRX8 Transmission brace alu RR SRX8 600167 110125 600764 110125 600751 600178 110127 110439 110108 600724 600750 601054 1311 601052 600330 600812 600753 1321 600724 601053 110439 600178 600751 1311 601052 1321 110402 110441 6
RADIO EXPLODED VIEW 110116 1639 1606 110188 600880 600761 804181 600763 600963 opt 110127 600964 opt 600761 600760 600841 opt 600842 opt 600843 opt 110116 110152 600880 110401 110128 600761 110402 600227 600757 110116 1639 600762 600761 110116 1639 600762 600761 600763 600963 opt 600964 opt 110152 600290 opt 600291 opt 600292 opt 600759 600178 600227 401355 110188 600178 110149 600764 600757 600757 600106 600757 110146 110146 110402 110105 600757 600757 110128 600290 Servo lever steerin
SHOCKS EXPLODED VIEW 600850 600111 600357 opt 600875 opt 110153 600854 opt 600855 opt 600856 FRONT 600857 opt 600858 opt 600859 opt 600861 opt 600862 opt 600863 REAR 600864 opt 600865 opt 600866 opt 600798 FRONT 600799 REAR 500184 600158 600113 600803 600802 110456 600816 opt 600817 opt 600818 600819 opt 601070 opt 601071 opt 600804 110438 600800 FRONT 600801 REAR 600848 opt 600849 opt 600805 600822 FR / RR 600796 600797 48 600357 600854 600855 600857 600858 600859 601070 601071 Membrane webb
CLUTCH EXPLODED VIEW 600175 opt 600228 600355 opt 600564 opt 600879 opt 600882 opt 600883 opt 600884 opt 600899 opt 600163 600298 opt 600563 opt 600216 600217 opt 600218 opt 600518 opt 600519 opt 600520 opt 600262 600566 opt 600206 110500 600229 opt 600230 600231opt 600232 opt 600233 opt 600565opt 600578 opt 600579 opt 110500 110401 110152 110423 110424 600229 600231 600232 600233 600175 Clutch spring soft 0.85mm (4) Clutch spring hard 0.
FINAL 1 EXPLODED VIEW 110178 110195 110144 110441 110178 600835 600282 opt 600768 600766 600767 110146 600755 600839 opt 600767 600115 600832 600769 110402 110194 600779 600824 600765 600871 600769 600768 600835 600282 opt 110194 110441 600779 600824 600870 110137 600824 110137 600779 110102 110127 600282 Shock-pivot bushing delrin (4) 600839 Motormount mono alu SRX8 50 600824
FINAL 2 EXPLODED VIEW 110159 600263 600833 600301 opt 600825 600143 opt 600277 opt 600439 opt 600440 opt 600826 opt 600840 opt 600872 opt 110157 600771 600756 600243 600340 600243 600718 opt 600719 600773 110108 600772 110148 600740 1601 1601 1601 600222 600297 opt 600297 Wheel-nut17mm 600143 Wing white nylon 600277 Wing black nylon (4) 600439 Wing white low 811 600440 Wing black low 811 600719 Body SRX8 High Downforce 110104 600620 opt 600621 opt 600826 Wing straight MD white 1/8 600840 W
TEAM SERPENT NETWORK SRX8 PRO SPARE PARTS www.serpent.com/600020/spares/ SRX8 PRO OPTIONALS PARTS www.serpent.com/600020/Optionals/ SERPENT TOOLS www.serpent.com/product/Tools/ SERPENT MERCHANDISING www.serpent.
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INSTRUCTION MANUAL Manual Cobra SRX8 PRO #600020
