Lawn Tractors > Simplicity > 4040 PowrMax

Simplicity 4040 PowrMax Engine



Simplicity 4040 PowrMax tractor photo
1972
PowrMax Series
Garden tractor
Series map:
4040
16.5hp
Engine Detail
Onan CCKA
gasoline
2-cylinder
air-cooled horizontal-shaft opposed-twin
Displacement816 cc
49.8 ci
Bore/Stroke3.25x3.00 inches
83 x 76 mm
Power (gross)16.5 hp
12.3 kW
Fuel systemMarvel-Schebler downdraft carburetor
Air cleanerpaper element
Compression7:1
Rated RPM3600
Idle RPM1200-3850
Starterelectric
Starter volts12
SparkplugChampion H-8
Sparkplug gap0.025 inches
0.635 mm
Point gap0.020 inches
0.508 mm
Intake valve clearance0.007 inches
0.178 mm
Exhaust valve clearance0.016 inches
0.406 mm
Engine Oil
4040 PowrMax gasoline engine oil chart
Oil capacity3.5 qts
3.3 L
Oil change50 h
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on June 7, 2023
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