Bolens QS-16 garden tractor specs and service data

The Bolens QS-16 is a garden tractor model manufactured from 1974 to 1977 by Bolens. It was available in a two-wheel drive (2WD) version.

The Bolens QS-16 is equipped with a 588 cc (35.9 cu·in) single-cylinder gasoline engine with 95.3 mm (3.75 in) of the cylinder bore and 82.6 mm (3.25 in) of the piston stroke, and a shaft-driven hydrostatic transmission with infinite forward and reverse gears.

The Bolens QS-16 garden tractor features:

The Kohler K341 gasoline engine which produces 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm of horsepower
Manual steering
Disc brakes
Open operator station or Soft-side cab (optional)
Category 0 rear hitch (optional)
Independent middle PTO with electric clutch
Independent rear PTO with 2000 rpm (optional)

General specifications

General Specifications
Model	Bolens QS-16
Tractor type	Garden tractor
Production years	1974-1977
Factory	–
Dimensions and weight
Length	1,790 mm (70.5 in)
Width	760 mm (29.9 in)
Height	1,140 mm (44.9 in)
Wheel base	–
Ground clearance	190 mm (7.5 in)
Weight	385 kg (849 lbs)
Fuel capacity
Fuel tank capacity	–

Engine

Engine Specifications
Engine model	K341
Engine type	4-stroke, L-head (side valve), single-cylinder
Displacement	588 cm³, (35.9 cu·in)
Bore and stroke	95.3 mm X 82.6 mm (3.75 in X 3.25 in)
Max. horsepower	16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm
Cooling system	Forced air
Lubricating system	Splash type
Fuel system	Carburetor
Starting system	Electirc starter
Compression pressure
Normal:	7.7-8.4 kg/cm² (7.6-8.3 bar, 110-120 psi) / 1,000 rpm
Valve clearance
Intake valve clearance:	0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance:	0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system:	Splash type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.4 L (1.5 US. qt, 1.2 Imp. qt.)
Ignition system
Spark plug:	Champion RH10
Spark plug gap:	0.65 mm (0.0256 in)
Spark plug torque:	27 N·m (2.8 kg·m, 19.9 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis	4×2 2WD
Steering type	Manual
Brakes	Disc
Transmission
Transmission manufacturer or model	Sundstrand 15
Transmission type	Shaft-driven hydrostatic
Gears	Infinite forward and reverse
Speed	Forward: 12.9 kmh (8.0 mph) Reverse: 6.4 kmh (4.0 mph)
Transmission oil capacity	9.5 L (2.5 US. gal, 2.1 Imp. gal.)

Tires

Tires
Front tires	–
Rear tires	–

Rear Hitch

Three-Point Hitch
Category	0 (optional)
Control type	–
Lift capacity (at ends)	–

PTO (Power take-off shaft)

PTO
Middle PTO type	Independent with electric clutch
Middle PTO speed	–
Rear PTO type	Independent (optional)
Rear PTO speed	2000 rpm

Electrical system

Electrical system
Ground	Negative
Charging system	Flywheel alternator
Charging amps	15A
Battery	12V

Attachments

Bolens 48″ mid-mount mower deck
Cutting width	1,210 mm (48 in)
Bolens 54″ front-mount blade
Cutting width	1,370 mm (54 in)
Bolens 42″ front-mount single-stage snow blower
Width	1,060 mm (42 in)
Bolens 46″ front-mount two-stage snow blower
Width	1,160 mm (46 in)

Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

Bolens QS-16