Gravely 816

The Gravely 816 is a tractor produced by Gravely Lawn Tractors. It is equipped with a 716 cc 43.7 ci engine. The listed engine power is Gasoline (listed): 16.5 hp / 12.3 kW; Gasoline (listed): 16 hp / 11.9 kW. Transmission: 8 forward and 4 reverse. Operating weight: 960 lbs 435 kg.

Overview

	1972 - 1978 800 SeriesGarden tractor 800 Series Garden tractor

Production
Manufacturer	Gravely
Garden tractor

Gravely 816 Transmission
8-speed gear
Transmission details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Dimensions & Tires
Weight	960 lbs 435 kg
Front tire	16x6.50-8
Rear tire	23x8.50-12
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12
Battery AH	43
Battery Group	22F

References
Owner's Manual 810 - 812 - 814 - 816 (20041L3) published in 1973
Owner's Manual 800 Series (22454) published in 1977
The Great Gravely Durability published in 1972
Riding Tractors published in 1973, by Gravely
Like Nobody Else published in 1976, by Gravely
Riding Tractors published in 1978, by Gravely

Engine

Engine options
16.5HP Onan 816cc 2-cyl gasoline
16HP Onan 716cc 2-cyl gasoline

Engine Detail — 816 cc / 49.80 ci Gasoline

Manufacturer	Onan CCKA
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled horizontal-shaft opposed-twin
The CCKA was used for the first seven years of production on the 816, up until 1978.
Displacement	816 cc 49.80 ci
Bore/Stroke	3.00x3.25 inches 76 x 83 mm
Power	16.5 hp 12.3 kW
Rated RPM	3600
Starter	electric
Starter volts	12
Sparkplug gap	0.025 inches 0.635 mm
Intake valve clearance	0.011 inches 0.279 mm
Exhaust valve clearance	0.011 inches 0.279 mm
Oil capacity	2 qts 1.9 L

Engine Detail — 716 cc / 43.7 ci Gasoline

Manufacturer	Onan B43M
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled
The B43M was used on the Gravely 816 for the final production year, in 1978.
Displacement	716 cc 43.7 ci
Bore/Stroke	3.25x2.62 inches 83 x 67 mm
Power	16 hp 11.9 kW
Rated RPM	3600
Starter	electric
Starter volts	12

Transmission

Transmission — 8 forward and 4 reverse shaft-driven gear

Type	shaft-driven gear
Gears	8 forward and 4 reverse
Oil capacity	6 qts 5.7 L
Oil type	SAE30

Gravely 816 Transmission

Dimensions

Gravely 816 Tires
Lawn/turf front	16x6.50-8
Lawn/turf rear	23x8.50-12

Dimensions
Length	75.5 inches 191 cm
Width	41.75 inches 106 cm
Height	43 inches 109 cm
Shipping weight	960 lbs 435 kg

Attachments

Attachment overview
40" mid-mount mower deck
50" mid-mount mower deck
Snowblower
Blade
Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. TractorData does not list details of these attachments.

Photos

Gravely 816

Gravely 816 with snowblower.