Table of Contents
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Table of Contents
Summary of Contents for Protek Samurai 321B
- Page 1 321B Nitro Engine Instruction Manual www.ProTekRC.com Copyright © 2014...
- Page 3 I N S T R U C T I O N M A N U A L It is important that before attempting to operate your engine that you read, understand and strictly follow the outlined guidelines in the “Safety Instructions, Warnings and Notes” section on pages 1-3 of this manual.
- Page 4 S A F E T Y I N S T R U C T I O N S , 3 D D R A W I N G & S P E C I F I C AT I O N S W A R N I N G S &...
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Page 5: E N G I N E A C C E S S O R I E S
E N G I N E A C C E S S O R I E S N O T E S • This engine is intended for use in model cars. Do not attempt to use it for any Part Number Description other purpose. - Page 6 N O T E S Part Number Description PTK-2529 Ball Link PTK-H-4000 3x3mm Set Screw • Before starting the engine, verify that all fasteners, especially those at joints and moving parts (such as the throttle arm) are tight and secure. Loose fasteners are PTK-2535 Carburetor Boot often the source of catastrophic problems and could lead to injury or property...
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Page 7: C A R B U R E T O R E X P L O D E D V I E W
M2.6x18 C A R B U R E T O R E X P L O D E D V I E W E N G I N E C O N S T R U C T I O N This engine uses a chrome plated brass sleeve with a tapered cylinder wall. - Page 8 N O T E S W H E N A P P LY I N G Part Description Number T H E S TA R T E R B O X PTK-2501 Cooling Head PTK-2508 Turbo Plug Button Head DO NOT over prime the engine. This could cause a hydraulic lock and damage the engine PTK-2509 0.1mm &...
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Page 9: E N G I N E E X P L O D E D V I E W
1/8 Scale Buggy and Truggy use while featuring a turbo glow plug and slide carburetor. With its easy-to-tune and consistently stable operating characteristics, the Samurai 321B is the ideal engine of choice for the racer seeking a reliable engine with a smooth power band and great runtime. -
Page 10: Troubleshooting
S Y M P T O M : N O T R E A C H I N G P E A K R P M Cylinder Liner Slight taper Slight taper • ProTek P3 - Ultra Hot Turbo Glow Plug (PTK-2542) (1) Cause Corrective Action Insufficient warming up or break-in. - Page 11 Check and secure the system. Glowplug Used to start the engine. Glowplug Rotate the retainer Recommended: PTK-4500 - ProTek R/C SureStart 1/8 Off-Road Dirt and dust may lodge in Exhaust Dirt and dust may lodge in nut gently until it stops...
- Page 12 Needle Multi-Wrench Needle to touch chassis Slide Boot (Needle Valve) ProTek R/C offers a full line of batteries, chargers, servos and Carburetor Restrictor (Venturi) .5mm High Speed accessories. Visit www.ProTekRC.com for more information. O-Ring Mid Needle Do not allow...
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Page 13: B A S I C E N G I N E Pa R T S
O-Ring Low Speed Needle Retaining Screw (Metering Needle) Thermo Insulator B A S I C E N G I N E PA R T S Dirt and dust may lodge in marked places Do not allow Cooling Head High Speed bottom of crankcase Needle to touch chassis... -
Page 14: C A R B U R E T O R C O N T R O L S
C A R E & M A I N T E N A N C E The following procedure is recommended for this engine when the ProTek R/C P3, PTK-2060 or PTK-2090 tuned pipe and fuel containing up to 30% nitromethane are used. - Page 15 We to touch chassis recommend the ProTek R/C P3 plug. Carefully install the plug finger tight before final • REALIGNMENT OF THE LOW SPEED NEEDLE & MID NEEDLE tightening with the correct size plug wrench.
- Page 16 Crankshaft Slight taper I N S TA L L AT I O N O F T H E • With the engine running, close the throttle and allow it to idle for about five seconds and then open the throttle to the full throttle position. If, at this point, the engine puffs out S TA N D A R D A C C E S S O R I E S excessive smoke and the vehicle does not accelerate smoothly and rapidly, it is likely that the idle mixture is too rich.
- Page 17 rce it to turn further. bottom of crankcase Needle Open to touch chassis approx 0.5mm Crankshaft Chamfer inside edges of bearers F I N A L A D J U S T M E N T I N S TA L L AT I O N O F mm open Slight taper T H E C A R B U R E T O R...
- Page 18 Needle Glow Plug Igniter Slide Boot (Needle Valve) Mid Needle Idle Screw (Mixture Control Valve) (Throttle Stop Screw) Idle Screw E N G I N E I N S TA L L AT I O N High speed needle position when Deliver fuel to the carburetor starting the engine.
- Page 19 Close the high speed 30º needle approximately HIGH SPEE Needle 30° as needed. This Fuel Tank Side Fuel Open procedure will be repeated S TA R T I N G & B R E A K I N G - I N several times throughout NOTE: It is incredibly important to set the throttle to the neutral T H E E N G I N E...
- Page 20 Rotate the retainer Carburetor Restrictor (Venturi) Close The following procedure is recommended for this engine when the ProTek R/C P3, Gasket • Low speed needle (metering needle) and mid needle (mixture control valve) are set at the nut gently until it stops...