Can you weld a boat propeller?

Agustin Hagenes asked a question: Can you weld a boat propeller?
Asked By: Agustin Hagenes
Date created: Wed, Jun 9, 2021 12:04 AM
Date updated: Fri, May 20, 2022 8:23 PM


Video answer: Dhc2000 gas welding an aluminum boat prop

Dhc2000 gas welding an aluminum boat prop

Top best answers to the question «Can you weld a boat propeller»

When someone runs their aluminum boat prop into the lake bottom , usually it can be repaired by replacing the worn or chipped metal with weld metal.


Those who are looking for an answer to the question «Can you weld a boat propeller?» often ask the following questions:

⚓ What cost repair boat propeller?

Propeller repair cost is generally about half the cost of a new propeller. Cost is mainly based on material, number of blades, and the diameter of the propeller. To determine whether a propeller is repairable, we evaluate the amount of damage, number of previous repairs, and replacement cost. Another factor to consider.

⚓ What is a boat propeller?

  • A boat propeller works by pushing water, which propels the boat in the opposite direction. More precisely, it transforms rotational energy into thrust; thus, the turning propeller increases the water pressure to its rear, and moves into the area of reduced pressure in front of the propeller, taking the boat with it.

⚓ Can you weld aluminum boat?

When it comes to aluminum boat repair, you can use TIG or MIG welding aluminum, especially if you know how to weld aluminum with a stick welder… When aluminum welding a boat, any mistake could prove fatal if your boat starts taking on water at sea because your weld wasn't strong enough.

Video answer: Diy boat propeller - part 7 - mig welding repair

Diy boat propeller - part 7 - mig welding repair

9 other answers

A good example of this is when tig welding aluminum boat propellers. When someone runs their aluminum boat prop into the lake bottom, usually it can be repaired by replacing the worn or chipped metal with weld metal. The problem is the any aluminum that has been in service like a boat prop or engine crankcase, soaks up some crap.

Anything beyond a minor weld repair on a boat prop and you should be aware of balancing issues, pitch and rake issues, and also the hub. Even though I have welded on many props, I am not recommending this repair...only using it as an example of an aluminum edge build up using tig welding.

The welding fixture is used to hold the prop at the desired angle. The correct copper template for the propeller blade is clamped to the pushing face of the propeller. Weld directly against the copper template. The weld will follow the correct pitch, rake and blade configuration.

I've used JB Weld to repair a dinged skeg with great results. Your work looks good, but for a prop, I'd take it to a prop shop where it can be properly welded and balanced. I would expect you could get that done for less than $75. Alternatively, you can probably find used props for that motor rather cheap on E-bay and various other outlets.

If you catch them in time, techs can fill in the nicks by building them up with a weld, then refinishing them to a polished finish. 4. Propeller Tuning The way propellers are mass produced, it’s rare that any two propellers are the same, let alone two blades on the same propeller.

General Propeller will show you how to repair a boat propeller in 60 seconds or less. At General Propeller we have a passionate and dedicated repair team wit...

Once you get it where you want it, you'd never have to change it again and you could probably weld it. It's really not necessary though, It usually doesn't get very wet or submerged, and would probably not get corroded.

Check inside the casting for clearance for the shaft. You might consider making a sleeve to fit over the shaft for reinforcement where the joint will be. Slide it over the shaft before welding, since the spline is larger. After dressing up the welded area, slide the sleeve over the weld and weld it at both ends.

As you can see, a boat propeller causes cavitation when it operates at high speeds in certain conditions. Pressure, mixed with speed, causes the water behind the propeller to form a vacuum, thereby creating small bubbles or “cavities.”

Your Answer

We've handpicked 29 related questions for you, similar to «Can you weld a boat propeller?» so you can surely find the answer!

Can you weld a boat exhaust manifold?

Welding a cracked exhaust manifold can save you a lot of money. The task can be done with just about any welder meant for steel. The most important part of welding the manifold is the preparation work; a well-prepped welding job goes very smoothly.

Will jb weld work on aluminum boat?

Does JB Weld work on aluminum? Yes, JD Weld will do a great job binding aluminum pieces together. In fact, there are very few materials it does not work on and you can count those almost on one hand. Make sure to follow the instructions to get the best bond possible as it will hold for years when applied right.

Can you machine repair an aluminum boat propeller?

Spray three coats of aluminum oxide primer on the propeller. Wait 30 minutes for each coat to dry before applying the next. Allow 3 hours for the primer to dry completely. 6. Apply three to five coats of paint on the propeller, waiting at least 15 minutes between each coat.

How is a propeller rotated on a boat?
  • Propeller is rotated by inserting a special arbour into the bore and placed in a stand. This test is to ensure that the propeller remains static in any rotating position.Weights are added and removed to achieve the same. Propeller bedded to tailshaft and jacked up to usual shop mark.
How many blades does a boat propeller have?
  • Boat propellers include blades that turn on a shaft, which is powered by the motor. Propellers can have 3, 4, or 5 blades. Typically, the more blades on the propeller, the more propulsion can be achieved.

Video answer: How i repaired propellers - welding (part 4 of 6)

How i repaired propellers - welding (part 4 of 6) How to repair a bent aluminum boat propeller?

General Propeller will show you how to repair a boat propeller in 60 seconds or less. At General Propeller we have a passionate and dedicated repair team wit...

What is a propeller shaft on a boat?
  • A propeller shaft is a shaft which is used to spin a propeller on a craft such as a boat or airplane. The prop shaft, as it is also known, takes the rotation and torque from the engine and brings it to the propeller, causing it to spin at a rate which can be controlled by the operator of the craft.

Video answer: Aluminum propeller soldered or brazed with super alloy 5 aluminum welding and brazing repair kit

Aluminum propeller soldered or brazed with super alloy 5 aluminum welding and brazing repair kit What part of boat prevent propeller strike injuries?

This is the time when the operator needs to turn off the engine to prevent propeller strike accidents. Ladder Interlocks When the ladder is used by the passengers, the Ladder Interlock system triggers the boat to turn off the engine.

What to do with an aluminum boat propeller?
  • When someone runs their aluminum boat prop into the lake bottom , usually it can be repaired by replacing the worn or chipped metal with weld metal. The problem is the any aluminum that has been in service like a boat prop or engine crankcase, soaks up some crap.
When to replace a propeller on a boat?
  • Repair or replace the prop when damaged or bent. If needed, replace the rubber or plastic hub that sits between the propeller and the propshaft. Always carry a spare propeller onboard—just like a spare tire.

Video answer: Prop repair stainless steel

Prop repair stainless steel Where can i get a boat propeller repaired?
  • Boat propeller repair specialists. New and used propeller sales. Lowest prices on propeller repair. Huge selection of new propellers.
Where is johnny's boat propeller service in detroit?
  • Johnny’s Boat Propeller Service in Detroit, MI, is here to provide customers with the knowledge, service and support for all their propeller needs. From detailed technical information to highly accurate MRI propeller analysis, Johnny’s Boat Propeller offers our 43 years of expertise to provide customers with what they need.
Why is my boat propeller pitting in saltwater?
  • Example of pitting from corrosion that has damaged this prop beyond repair. A metal propeller soaking in saltwater (or any other electrolyte) can suffer a form of corrosion that appears to "eat" away the metal, leaving it pitted where some of the alloy has left the metal structure.
Will a bigger propeller make my boat faster?

Increasing prop pitch will make the boat go faster (provided the engine has enough power to keep the RPMs in the optimum operating range. If the engine doesn't have enough power to run a higher pitch prop, performance suffers across the board and you could easily damage your engine.

Can i use jb weld on aluminum boat?

J-B Weld works on aluminum, or on ANY metal surface, excepting lead. JB Weld works well on aluminum… Seriously, the best way to fix a hole in an aluminum boat is to take the boat to a weld shop and let them weld it with a Tig welder.

Can you use jb weld on aluminum boat?

How to Fix Aluminum Boat Leaks with JB Weld Marine Weld. If playback doesn't begin shortly, try restarting your device. Learn the skill of fishing and trolling for multiple fish species such as ...

Is it ok to weld an aluminum boat?
  • Is there any welding anywhere on that boat, if there is, then it should be ok to weld that hull.. 2. Being there is a crack next to that welded area, that indicates a NO WELD option. Alloys in the aluminum allow it to be heat treated, then tempered to increase the strength of the metal.
What happens when you weld an aluminum boat?
  • Aluminum boat props always have some corrosion going on in the microscopic crevices of the metal and it seems to want to escape during the welding process. Sometimes, you dont notice it while you are welding and you think its all good until you blend off the weld.

Video answer: Boat propeller repair part 1

Boat propeller repair part 1 Can you drive a boat with a damaged propeller?

Yes, you can run a boat with a bent prop, but I don't recommend it. A bent prop is not as efficient. It will slow down your speed and cost more fuel (like a flat tire on a car). It can also damage the rest of your boat or stop working in the open water, which can leave you stranded.

How are propeller bearing housings installed on a boat?
  • The propeller shaft bearing housings (stern bushes) can be installed either by press-fitting to machined bores in the stern structure or can be fixed to the stern structure by resin chocking.
How to prevent a propeller strike on a boat?
  • To prevent the propeller strike accident, the following precautions should be taken: Never start the engine while people are boarding or getting down the boat. Before the engine is started, confirm whether everyone is seated correctly or not. Never let any passengers stand or sit on the gunwales, transom bow or seatbacks while underway.
How to prevent propeller strike injuries on a boat?
  • The equipment piece that plays an important role in preventing the highly dangerous propeller strike injuries is the ignition security switch or also known as motor cut off switch. The most ideal approach to ensure that while turning on the boat’s engine, nobody goes closer to the engine side.
What does the hub of a boat propeller do?
  • What It Is: Many propellers have a sacrificial composite center between the hub and the splines. What It Does: Should the propeller strike a hard object, the inner hub will break or "spin," protecting the drivetrain. When this happens, one is said to have "spun the hub."
What is an outer hub on a boat propeller?
  • Outer Hub. What It Is: On through-hub exhaust propellers, the exterior hub surface is in direct contact with the water. What It Does: The outer hub forms the attachment point for the blade roots and, along with the inner hub, creates the tunnels that are the exhaust passages.
What is the best propeller material for my boat?
  • Recommended for boats with top speeds less than 50MPH. 3 Blade Die-Cast Aluminum. Turning Point Hustler 4-Blade Propeller Stainless Steel performance at aluminum price. Performance tuned rake angles add to boat lift and overall performance. Tuned progressive pitch angles minimizes slip and increases fuel economy.

Video answer: Aluminum propeller repair using hts-735-11

Aluminum propeller repair using hts-735-11