Question 1

What are signs that my boat propeller needs repair?

Lukas · Accepted Answer

Vibration, lower top speed, higher fuel use or uneven engine RPM often point to a damaged or unbalanced prop. We inspect it, and if it needs repair, a propeller shop we work with reshapes and balances it before we refit it.

Question 2

Can a damaged propeller affect my fuel efficiency and handling?

Lukas · Accepted Answer

Yes. Even minor dings or bends reduce efficiency and put strain on the drivetrain. A prop restored to its proper shape and balance helps fuel economy, acceleration and steering response.

Question 3

Do you repair stainless steel and aluminum boat props?

Lukas · Accepted Answer

Yes, both aluminum and stainless steel. We remove your prop, send it to a propeller repair shop for reshaping, welding if needed, and balancing, and refit it when it comes back. The prop shop's charge is part of your written estimate.

Question 4

How much does it cost to repair a damaged propeller?

Lukas · Accepted Answer

Labor is $150 an hour, plus a one-way trip fee by distance for work at your boat ($30 in San Pedro up to $110 in Newport Beach). Removing and refitting a prop usually takes 1-2 hours; the prop shop's repair charge depends on the material and the damage, and a badly cracked or broken prop may need replacing. You get a written estimate before any work starts.

Question 5

How do I know if I need to replace the prop instead of repairing it?

Lukas · Accepted Answer

Replace the prop when blades are broken or badly cracked, a lot of blade material is missing, or the repair would cost close to a new prop. A spun hub can usually be fixed by replacing the hub. If you need a new prop, we help you pick the right diameter and pitch.

Question 6

Do you offer propeller balancing to reduce vibration?

Lukas · Accepted Answer

Yes. A propeller shop balances repaired props before they go back on, which reduces vibration and is easier on the drive and gearbox.

Question 7

Can you remove and reinstall the prop at the marina?

Lukas · Accepted Answer

On an outboard or a sterndrive, yes: with the drive tilted up we take the prop off at the slip and refit it after a prop shop repairs it. An inboard prop is under the boat, so it comes off on a trailer, after a haul-out or by a diver we refer you to.

Question 8

Why would I need my propeller pulled off the shaft?

Fryderyk Florczak · Accepted Answer

Propeller removal is needed for inspections, shaft seal work, cutless bearing replacement or propeller repairs; on an inboard it is done with the boat out of the water. Pulling with a proper puller avoids damaging the shaft and lets the prop go back on correctly.

Question 9

What is propeller re-hubbing and when is it needed?

Fryderyk Florczak · Accepted Answer

Re-hubbing applies to outboard and sterndrive propellers, which have a rubber or plastic hub between the blades and the shaft; when it slips, the engine revs up but the boat barely speeds up. Insert-type hubs can be swapped at the boat, while pressed-in rubber hubs are replaced by a prop shop with a press. Inboard propellers have no hub to replace: they are keyed to a tapered shaft, and we pull them, with the boat out of the water, for shaft, seal or cutless bearing work.

Question 10

What are signs of a spun or failing prop hub?

Fryderyk Florczak · Accepted Answer

Common signs include sudden loss of thrust, inconsistent speed, high RPM with little movement, or vibration. A hub inspection confirms whether re-hubbing is required.

Question 11

Can propeller removal damage the shaft or seals?

Fryderyk Florczak · Accepted Answer

If done incorrectly, yes. We use proper marine pullers and techniques to safely remove the propeller without damaging the shaft, keyway, or shaft seals.

Question 12

Does re-hubbing restore original performance?

Fryderyk Florczak · Accepted Answer

Yes, re-hubbing restores proper power transfer from the engine to the propeller, improving acceleration, smoothness, and overall performance when the blades are still in good condition.

Question 13

Do you inspect the prop shaft during removal?

Fryderyk Florczak · Accepted Answer

Yes. We inspect the shaft, the splines or the key and keyway, and the hardware for wear or corrosion, and quote any repair that is needed before we do it.

Question 14

Is propeller pulling and re-hubbing better than buying a new prop?

Fryderyk Florczak · Accepted Answer

In many cases, yes. Re-hubbing is more cost-effective than replacing the entire propeller and provides reliable performance when the prop blades are still structurally sound.

Question 15

What is a cutless bearing and what does it do?

Fryderyk Florczak · Accepted Answer

A cutless bearing is the water-lubricated, rubber-lined sleeve in the strut that supports the propeller shaft and keeps it centered as it spins. A good one keeps vibration down and protects the shaft from wear.

Question 16

How do I know if my prop shaft alignment is off?

Fryderyk Florczak · Accepted Answer

Common signs include excessive vibration, unusual noises, shaft seal leaks, or premature cutless bearing wear. Misalignment can also stress the transmission and engine mounts if left uncorrected.

Question 17

What causes cutless bearings to wear out?

Fryderyk Florczak · Accepted Answer

Normal wear, misalignment, sand or debris in the water, and bent prop shafts can all shorten bearing life. Boats operated frequently or in shallow water may require more frequent inspection and replacement.

Question 18

What is included in prop shaft alignment service?

Fryderyk Florczak · Accepted Answer

We check the engine mounts, the shaft for straightness and the gap between the coupling faces, then move the engine on its mounts until the faces line up within the maker's tolerance. Alignment is done with the boat in the water, at least 24 hours after any launch so the hull has settled. Replacing a cutless bearing needs the boat out of the water, so a boat kept in the water is hauled at a boatyard, which charges separately, while a trailer boat can come to our shop.

Question 19

Can running with a worn cutless bearing cause damage?

Fryderyk Florczak · Accepted Answer

Yes. A worn bearing lets the shaft wobble, which can damage the strut, the shaft seal and, over time, the transmission. Replacing it early helps you avoid costly drivetrain repairs.

Question 20

How often should cutless bearings and shaft alignment be checked?

Fryderyk Florczak · Accepted Answer

We recommend inspection every 12 months or during haul-out. Alignment should also be checked after engine mount replacement, propeller strikes, or transmission service.

Propeller and Shaft Repair

Propeller and Shaft Repair in Long Beach and San Pedro

What the work covers

Signs your prop or shaft needs attention

Questions about propeller repair

Why does my engine rev up while the boat barely speeds up?

Is a small ding worth fixing?