omegadraconis
31.05.2021 4:31:05
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Cloudflare Ray ID: 687346083d8d2bad • Your IP : 46.32.66.208 • Performance & security by Cloudflare [links]
The gear ratio, or the ratio of the numbers of teeth on the gears, was 1.86:1. It had FNR, or forward/neutral/reverse, gears. The gear shaft, which is the shaft that the gears are mounted to, was 20 inches long.
The Johnson HP 150 is a type of outboard motor, which is a self-contained propulsion system used by boats. It includes an engine, a gearbox, and a propeller or jet drive. Outboards move the boat forward and control the steering by pivoting left and right. The "skeg," or bottom flap, can also act as a rudder when the outboard is not running. Johnson motors were produced by the Johnson Motor Company, founded in 1921 by the four Johnson brothers. In 1935, Outboard Marine and Manufacturing Company (OMC) purchased the Johnson Motor Company. In 2001, Bombardier purchased OMC, and the Johnson brand was discontinued.
The 2000 Johnson HP had 150 horsepower and displaced 158 cubic inches. Horsepower is a measurement of power that equals about 750 watts. The displacement refers to how large the engine is. The bore x stroke of this engine was 3.6 x 2.59 inches. The bore refers to the diameter of the cylinder where the piston moves up and down, and the stroke is the distance that the piston moves up and down inside the cylinder. The Johnson 150 had 6 cylinders, used a carburetor for fuel induction, and had optimal engine speeds of 4500 to 5500 RPM. It weighed 370 lbs.
This engine had a 35 amp alternator, which is the device that converts mechanical energy to electrical energy. It used thermostat and pressure cooling. The steering for this engine was remote, meaning it was rigidly attached to the boat. The scavenging, which is how air at a pressure greater than the outside air pushes the exhaust gas out of the cylinder, was loop scavenging. This meant that the scavenge air loops around the cylinder and pushes out the remaining exhaust, rather than flowing in a unified direction. here
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Mid-size outboards are considered those that deliver 25-100 hp. Depending on the make and model, they generally range from about 70.5 kg/155 lbs to 163 kg/359 lbs. [links]
To find the right size outboard motors for your boat size, the standard formula is to ensure that you have 5 hp per ton of boat weight. However, unless your activity or location is subject to hp restrictions, you may want to go for even more horsepower so that you’re equipped to take on obstacles like head winds and rough water. here
Portable outboards generally range from 2-20 hp and can weigh anywhere from 13 kg/29.5 lbs to 50 kg/110 lbs. here
Depending on the type of watercraft you have and the type of motor you need, you can find outboard motors that range from as light as just 13 kg/29.5 lbs for a 2.3 hp engine to as heavy as 497kg/1094 lbs for a 627 hp motor! [links]
You’ll find a much wider range of high-power outboard motors – those categorized between 115-627 hp. These motors can weigh as “little” as 217 kg/478 lbs for a 115 hp motor to as high as 497kg/1094 lbs for 627 hp. [links]
RPM Information: 5500
Your engine's RPM range is important in choosing the right propeller for a given application. For example, if you look at your tachometer at top speed and it is not within the engine's RPM range then that is generally not good. You want your RPM's to be within the proper range while at wide open throttle (WOT). Be sure to do your testing under your normal boating conditions and with a good propeller (not bent, cracked, or excessively chipped). [links]
The iboats Outboard Motor Forums are another excellent source of information. here
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