Enya 60-4C 9.95cc Four-Stroke Glow R/C Aircraft Engine – Japan – Model 87001- SECOND HAND - Good Condition

"Vintage Enya 60-4C four-stroke glow engine, manufactured in Japan by Enya Metal Products Co. Ltd. This is the early and highly regarded 60-4C model, introduced in 1982. The engine is clearly marked ENYA 60-4C and MODEL 87001 on the crankcase.

The Enya 60-4C was an important high-performance four-stroke of its period. When tested by Model Airplane News in 1983, it produced an impressive 0.84 bhp at 11,800 rpm, giving it one of the highest specific power outputs of any model four-stroke tested at that time. Its design features a single-cylinder pushrod-operated OHV four-stroke layout, twin camshafts, and a two-ball-bearing crankshaft.

Displacement is 9.953 cc (0.6073 cu in), with a 24 mm bore and 22 mm stroke. Contemporary testing recorded a gross output of 0.84 bhp at 11,800 rpm and a net output of 0.73 bhp at 10,750 rpm. Tested propeller combinations included 14×6 at approximately 8,200 rpm, 13×6 at 8,400 rpm and 12×6 at approximately 9,900 rpm.

This example is in used vintage condition, showing the expected age-related marks, staining and surface discolouration visible in the photographs. The engine turns over freely. It has not been tested running, so the carburettor, valve clearances, bearings, camshaft/timing gears, glow plug and fuel system should be checked before attempting to run it.

A particularly interesting engine for a vintage R/C aircraft, scale project, restoration or model-engine collection. The early 60-4C is now a desirable example of the second generation of Japanese model four-stroke engines."

Technical specifications

• Manufacturer: Enya Metal Products Co. Ltd.
• Country: Japan
• Model: Enya 60-4C
• Model/part number: 87001
• Engine type: Single-cylinder four-stroke glow
• Valve arrangement: Pushrod OHV
• Displacement: 9.953 cc / 0.6073 cu in
• Bore: 24 mm
• Stroke: 22 mm
• Crankshaft: Two ball bearings
• Camshaft: Twin camshafts in bronze bearings
• Measured compression ratio: 7.7:1
• Gross power: 0.84 bhp @ 11,800 rpm
• Net power: 0.73 bhp @ 10,750 rpm
• Gross torque: 86 oz-in @ 7,500 rpm
• Approx. weight: 609 g without muffler / 620 g with muffler
• Fuel: Methanol-based glow fuel
• Typical propellers: 12×6, 13×6, 14×6 and larger/lower-pitch combinations depending on application
• Introduction: 1982
• Condition: Used/vintage
• Current condition: Turns over freely; running not tested

The published specifications and 1983 performance test are particularly useful here because they are specific to the Enya 60-4C rather than being generic four-stroke figures.

Manufacturer: Enya Metal Products Co. Ltd.
Country: Japan
Model: Enya 60-4C
Model/part number: 87001
Engine type: Single-cylinder four-stroke glow
Valve arrangement: Pushrod OHV
Displacement: 9.953 cc / 0.6073 cu in
Bore: 24 mm
Stroke: 22 mm
Crankshaft: Two ball bearings
Camshaft: Twin camshafts in bronze bearings
Measured compression ratio: 7.7:1
Gross power: 0.84 bhp @ 11,800 rpm
Net power: 0.73 bhp @ 10,750 rpm
Gross torque: 86 oz-in @ 7,500 rpm
Approx. weight: 609 g without muffler / 620 g with muffler
Fuel: Methanol-based glow fuel
Typical propellers: 12×6, 13×6, 14×6 and larger/lower-pitch combinations depending on application
Introduction: 1982
Condition: Used/vintage