How to Replace an Aluminum Boat Prop If your aluminum boat prop is corroded, it may be time to replace it. There are several factors to consider when replacing an aluminum boat prop, including the rake, pitch, and balancing issues. Additionally, the hub will need to be examined to ensure that it's still in good shape. The good news is that this process is relatively simple. If you're not sure which material is best for your prop, try using a scrap piece of aluminum. For example, timing chain covers or aluminum heads work well as practice materials. Use thinner edges when practicing. You can also use a running bead or two to simulate an aluminum casting. When lit by a tig torch, these beads will resemble an aluminum casting. If you're not looking to spend a lot of money on a new boat prop, you can find a low -cost alternative at your local marine supply store. The Three Blade Hustler prop is a great choice for boaters looking for top end performance and excellent bow lifting. It's suitable for mid-range horsepower pontoons, fishing ribs, and tiller boats. It's also compatible with most outboards and gearcases. If you're ready to replace your boat propeller, make sure you follow the proper procedure. After sanding, wipe it with acetone to remove any residue and skin oils. You should wear gloves while doing the job, as oil and moisture can wreak havoc on a finished propeller. You should also protect the propeller from water. Aluminum boat propellers are relatively inexpensive, but stainless-steel ones start at around $350. Composite propellers are a better choice for higher -powered boats. They have the same top end performance as aluminum propellers, but cost 30% less. They can be used for the main boat propeller or a spare. Some boat manufacturers even install them. While stainless steel propellers have historically been preferred by boaters, the aluminum boat prop has several advantages. It is cheaper, is less likely to be damaged, and offers excellent performance under most conditions. Moreover, it is much easier to replace an aluminum boat prop in most cases. Most dealers stock a wide range of aluminum propellers. When choosing an aluminum boat prop, consider the size, tooth, and overall design. There are wide bladed models that are ideal for pontoon boats, and four-bladed ones that improve hole-shot and trim on bass boats. These factors will all determine which propeller will work best for your boat and your budget. Propeller sizing and manufacturing has advanced over the past 20 years. New computer software and mathematical calculations are used to determine the appropriate size. Propellers can also be repaired if needed. Propellers with significant bends should not be adjusted by yourself, as it will damage the b lades or driveline components.
