Answer: In principle, a diesel engine is a diesel engine, so an automotive diesel will work fine in a boat. And, in fact, many marine diesel engines are nothing more than “marinized” car or truck engines. … The engine will want a water-cooled exhaust manifold and a wet exhaust (a dry exhaust is too noisy).
How do you convert a car engine to a Marine?
DIY Converting Chevy Engine for Marine Use
- Camshaft. Install a cam with a broad power-band from 500 to 5000 RPM (revolutions per minute), ideally. Engines that are built for road use have a very narrow power-band. …
- Flame Arrestors. Install a flame arrestor on the carburetor. …
- Alternator. Use an ignition-free alternator. …
- Cooling. Cool the engine with a keel-cooler.
What is the difference between a Marine 350 and a car 350?
The biggest difference is the freeze plugs. The marine motor’s freeze plugs are brass. The Marine motor is more like a truck engine. The cams, pistons are all heavier duty for sustained high speed running.
What engine do I need for my boat?
The rule of thumb is based on weight alone, and says you should have between 40 and 25 pounds of weight for each horsepower. For example, a 5,000-pound boat could have an engine with between 125 and 200 horsepower.
What is the difference between a marine engine and a car engine?
Marine Engines Are Heavy Duty
A car engine typically only uses a portion of its horsepower to maintain a decent speed on the road. … Essentially, a marine engine has just one gear compared to the four or more that a car engine has. This is another major difference between marine motors and car motors.
Why do marine engines run backwards?
Usually marine engines are only reverse rotation if it has a mate. … they had to do it this way because the distributor needed to keep spinning the same direction in order to spin the oil pump in the proper direction..
How many hours does a marine engine last?
The average marine gasoline engine runs for 1,500 hours before needing a major overhaul. The average marine diesel engine will run for more than three times that long and log an average 5,000 hours under the same conditions.
Is 200 hours on a boat a lot?
The average boater uses his or her boat about 50 hours per season, so use that as a good rule of thumb. If a boat is four years old, then about 200 hours would be about normal. If it’s five years old, 250 is about right, and so forth.
Can you run a twin engine boat on one engine?
RIP. A twin engined boat is designed to perform with two engines and will be difficult to manouvre with one engine.
Is it legal to overpower a boat?
The law states that it is illegal to power a boat with more power than listed on the capacity plate installed on the boat. Even if the boat is over 20 feet in length, the operator is responsible for not overpowering the vessel.
How fast will a 5 hp outboard go?
The 5hp engine will put you in the 10mph range, while the 7.50-10hp engines will push you 15+ mph.
What size motor do I need for a 20 foot boat?
Tips for selecting the right size hp for portable outboard motor for your boat.
|Motor HP||Boat length (feet)||Boat length (metres)|
|9hp – 20hp||11′ – 16′||up to 4.5m|
|20hp – 40hp||13′ – 18′||up to 5.0m|
|40hp – 75hp||14′ – 20′||up to 5.5m|
|90hp – 140hp||16′ – 25′||up to 6m +|
How much does a boat engine overhaul cost?
Rebuilding your current engine of the same size might cost about $2500 or so — or about a third of the cost of a new engine. Buying a rebuilt engine, backed by a reputable dealer of course, would split that difference, or about $3000 to $4000. That difference will buy a lot of gas, so consider carefully.
What is a marine engine?
a component of a ship’s power supply system. Marine engines are classified as main engines, used to propel the ship, or auxiliary engines, which drive electric generators, pumps, fans, and other equipment. They may be internal-combustion engines, steam turbines, or gas turbines.
Who makes PCM Marine Engines?
Pleasurecraft Marine Engine Company (PCM), a subsidiary of Correct Craft, designs and manufactures innovative inboard engines specifically for watersports, from its headquarters in Little Mountain, South Carolina.