Express Mach4 Left Hand Twist

Turning Point Express Mach4 Propellers Left Hand Twist - Resources & Information

Turning Point Express Mach4 Left Hand Twist Props are a series of high-performance propellers designed for use with boats that have outboard motors. The left-hand twist of these 4-blade propellers means that the blades are angled in a counterclockwise direction. This design is intended to improve the performance and efficiency of your boat and engine.

Browse our entire selection of Turning Point Express Mach4 Props catalog including Turning Point Express Mach4 Props Right Hand Twist. PartsVu also offers Turning Point Hub Kits, Propeller Hardware, Propeller Tools, and everything else you need to get the job done.

Need help servicing your Turning Point Propellers? PartsVu regularly publishes helpful how-to guides and other valuable maintenance information to help boaters service their outboard engines, boats, trailers, and more. Browse the PartsVu Xchange, our outboard maintenance blog, for a wide range of relevant topics and review the FAQ section below, covering everything you need to know about maintaining your boat in confidence.

Turning Point Express Mach4 Props Left Hand Twist FAQ

What are Turning Point Express Mach4 Left Hand Twist Props?

Some key features of the Turning Point Express Mach4 Left Hand Twist Props include:

1. High-quality construction: These propellers are made from durable, corrosion-resistant aluminum, which makes them long-lasting and reliable.
2. High-performance design: The Express Mach 4 propellers are designed to optimize the performance of your boat and engine, providing improved acceleration, top speed, and handling. The left-hand twist of these propellers is intended to further enhance performance.
3. Wide range of sizes and pitches: The Express Mach4 left hand twist propellers are available in a variety of sizes and pitch options to suit different engines and boats, so you can find the right propeller for your specific needs.
4. Easy installation and maintenance: Turning Point propellers come with a comprehensive installation manual and are easy to install and maintain. They can be easily cleaned and lubricated to keep them in good condition.
5. Limited warranty: Turning Point props come with a limited warranty, which covers defects in materials and workmanship. This can give you peace of mind and protection against any potential problems.

What's the difference between a 3 blade vs 4 blade prop for outboard engines?

Are you deciding between a 3 blade or 4 blade propeller for your outboard motor(s)? The main difference between 3-blade and 4 blade props (such as a Turning Point 4 blade prop) for outboard engines is the amount of thrust they can produce and the smoothness of operation.

• 3-blade propellers are generally more efficient at producing thrust, as they have less blade area and create less drag. This means they can often provide more speed for a given engine power. They also tend to be more durable and require less maintenance than 4-blade propellers.
• 4 blade propellers, on the other hand, are known for smooth operation and low vibration levels. They are often used on boats that need to operate at low speeds or in rough water conditions, as they provide a more comfortable ride. However, they are generally less efficient at producing thrust than 3-blade propellers and may require more power to achieve the same speed.

Overall, the choice between 3-blade and 4 blade boat props for an outboard engine will depend on the specific needs of the application. 

What outboard engine tools should I have onboard?

Even if you don’t do your own maintenance, all boaters need some basic boat tools in their marine tool kits to help them out of a jam. Of course, if you plan to do your own maintenance or a portion of your own maintenance, you’ll need to be a bit better equipped.

So which boat tools should you have onboard? The following are our recommendations and the reasons behind them. Of course, the tools you should have onboard are significantly dictated by the type of boating you do. As a practical matter, a near-shore, freshwater boater needs fewer tools than an off-shore boater. While a problem close to the shore can be an annoyance, a problem off-shore might be a whole different matter.

1. Fuel filter wrench—good idea to have on board if you get enough water or debris in your fuel system that a fuel filter change becomes necessary.
2. Adjustable band filter wrench—you may need to change your fuel/water separating filter if you have water in your system or if you got some bad gas at the marina. US marinas nearly always sell high-quality filtered gasoline, but marinas in the Bahamas are notorious for selling contaminated gasoline.
3. Prop nut wrench—carrying this wrench only makes sense if you carry a spare prop. Many boaters carry a spare inexpensive aluminum prop in case they spin a hub or bend a blade so severely that it wobbles.
4. Deck fill key/deck plate key/spanner wrench—these universal tools are designed to open all types and sizes of deck fill lids and shackles. Many of these tools also include bonus tools like bottle openers. Perfect for a cold one after fishing.
5. Toolkit—if you have room on your boat, all-purpose toolkits can come in handy. 
6. Pliers—channel lock, standard, and needle nose
7. Leatherman–a very helpful all-purpose tool.
8. Rigging knife
9. Serrated knife—for cutting rope, your all-purpose tool might include a serrated blade.
10. Flashlight
11. Emergency plug set—in case a leak manifests while you are out on the water.
12. Battery booster pack
13. Battery terminal cleaner
14. Zip ties—because we all know that you can fix almost everything with zip ties and duct tape.
15. Duct tape

What do the numbers on a propeller mean?

The numbers on a propeller generally refer to the size of the propeller. Propellers are usually designated by their diameter and pitch. The diameter is the distance from the tip of one blade to the tip of the opposite blade, measured at the widest point. The pitch is the distance that a propeller would move forward in one revolution if it were moving through a soft solid, like a screw through wood.

For example, a propeller with the designation "14.5 4" or “14.5x4”would have a diameter of 14 inches and a pitch of 7 inches. The pitch of the propeller determines how much thrust it can produce, with higher pitch propellers able to generate more thrust. The diameter of the propeller determines how much air it can move, with larger diameter propellers able to move more air.

The size of the propeller is important because it determines the amount of thrust that the propeller can generate, which in turn affects the performance of the boat. A larger, lower pitch propeller will produce less thrust, but will be more efficient and create less drag. A smaller, higher pitch propeller will produce more thrust, but will be less efficient and create more drag.

How can I select the right Turning Point Prop for my Mercury outboard engine?

Whether you’ve got a 150 hp Yamaha outboard, Mercury 115 hp outboard, or even a Mercury pro kicker, Turning Point offers a great resource to find a compatible propeller for your outboard, inboard, and sterndrive engine(s). Use the online tools found at the Turning Point Prop Wizard by selecting your Manufacturer, Horsepower, Model, Year, and other additional information (ie. left hand twist, right hand twist, etc.). You’ll be provided a list of compatible props for your particular engine and boat model, making the process of finding a propeller a cinch. 

What is the difference between right hand twist and left hand twist propellers?

Many boaters ask about the difference between a right hand vs left hand propeller, so let’s provide the most basic definition:

The direction of a propeller's twist, or pitch, is determined by the direction that the blades rotate as they move through the water. A right-hand twist propeller will rotate clockwise when viewed from the back of the boat, while a left-hand twist propeller will rotate counterclockwise. The direction of the twist affects the way that the propeller moves through the water and can impact the boat's performance. Right-hand twist propellers are typically used on boats with inboard engines, while left-hand twist propellers are used on boats with outboard engines.

Are 3 blade propellers better than 4 blade propellers for boats?

The number of blades on a boat's propeller can affect its performance in different ways. In general, 3 blade propellers are more commonly used on boats than 4 blade propellers because they are typically more efficient and provide better acceleration. This is because 3 blade propellers have a larger diameter and are able to displace more water, which gives the boat more thrust. 3 blade propellers are also easier to turn, which can make them more responsive and maneuverable. However, 4 blade propellers can provide some advantages in certain situations. They are typically better at reducing drag, which can make them more effective for boats that are travelling at high speeds. They are also less susceptible to ventilation, which can be a problem for boats that operate in choppy or turbulent water. Ultimately, the best choice of propeller will depend on the specific needs and requirements of the boat and its operator.

Where can I learn more about Turning Point Express Propellers for my boat and outboard motor?

PartsVu has plenty of resources for everything you need to know about Turning Point Express Props for your boat, including common propeller problems, maintenance tasks, and more. Start with the following guides and be sure to use the search bar to find plenty of other useful guides to maintain your boat in confidence:

• Boat Propeller Physics—Insight from Turning Point Propellers
• Outboard Propellers - Engineered for Performance - PartsVu
• Boating Safety - Essential Guide to Gear & Technologies
• Easy Step-by-Step Guide of the Most Common Boat Motor Repair
• How to Install a Propeller on a Mercury Outboard?
• Selecting the Yamaha Propeller That’s Best for You