Bolens QT-16 1666 Engine

Bolens QT-16 1666 lawn tractor photo
1973 - 1978
Q Series
Garden tractor
Series map:
Engine Detail
Onan BF-MS
air-cooled Horizontal-shaft opposed twin
Displacement659 cc
40.25 ci
Bore/Stroke3.125x2.625 inches
79 x 67 mm
Power (gross)16 hp
11.9 kW
Air cleanerpaper element (B140-1216)
Rated RPM3600
Starter volts12
SparkplugChampion H8
Sparkplug gap0.025 inches
0.635 mm
Point gap0.020 inches
0.508 mm
Engine Oil
QT-16 1666 gasoline engine oil chart
Oil capacity2 qts
1.9 L
Oil change50 h
Page information
Peter Easterlund - owner of
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Peter Easterlund - owner/author
Updated on April 6, 2023
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