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This is the OS Engines 46AX .46 ABL glow engine, with 40G carburetor and included OS E3070 Muffler. As the replacement for the high-performance 46FX, it's no wonder that the .46 AX shares many of its features. The raw power. A remote needle valve. Mounting bolt patterns. A balanced "D"-cut crankshaft supported by dual bearings. CNC-machining for the piston and other parts. And the same exclusive ABL cylinder liner that has made FX reliability a byword. But all the same, the 46AX is a different – and better – engine. Why? Because times change and technology advances. And because O.S. uses the best of both to make a good engine a better engine.
Features:
- Features the 46FX's durable ABL (Advanced Bimetallic Liner) plating, as well as a new design that automatically centers, levels and seats the head during re-replacement. Head snugs down with only four screws – not six.
- Subtly tapered low-end needle eliminates surging at transition, ensuring exceptionally smooth, consistent throttle control from idle to top speed.
- Redesigned liner ports and a ball-milled inlet port minimize turbulence during fuel/air mixing, making combustion and power output more predictable.
- New high-speed needle bracket simplifies horizontal/vertical mounting – and can be replaced in just minutes.
- Minimizes vibration-induced "creep" and re-sets with a ratchet spring on the high-speed needle and O-ring seals on both needles. A simple rotor guide screw replaces the throttle stop screw – and eliminates spring-related movement.
- Includes a new low-noise E-3070 muffler and 2-year limited warranty protection.
- Includes a lock nut and longer crankshaft with more thread length, for better prop nut engagement and greater pilot safety.
SPECIFICATIONS:
- Displacement: 0.455 cu in (7.5 cc)
- Bore: 0.866 in (22.0 mm)
- Stroke: 0.772 in (19.6 mm)
- Practical rpm: 2,000-17,000
- Output: 1.65 hp @ 16,000 rpm
- Weight w/muffler: 17.2 oz (489 g)
- Includes: #A3 glow plug, E-3010 muffler
- Requires: glow fuel, prop
- Recommended Props: 10.5x6, 11x6-8, 12x6-7
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