Question 1

Do you repair raw water pumps for boats?

Lukas · Accepted Answer

Yes, we repair and replace raw water pumps on all types of marine engines – inboard, outboard, and sterndrives. Whether it’s a leaking seal, cracked housing, or failed impeller, we fix it fast to prevent engine overheating.

Question 2

How do I know if my water pump needs repair?

Lukas · Accepted Answer

Look for symptoms like engine overheating, weak water flow from the exhaust, abnormal engine temperature alarms, or a whining noise near the pump. A failing impeller or blockage is often the cause.

Question 3

Can you replace the impeller on-site?

Lukas · Accepted Answer

Yes – we carry impeller kits for most engines and perform full replacements dockside. Our mobile service truck is stocked and ready for fast repairs right at your slip.

Question 4

How much does it cost to repair or replace a marine water pump?

Lukas · Accepted Answer

Basic impeller replacements start at $225. Full water pump repairs or replacements, including seals, gaskets, and labor, usually range from $300–$700 depending on the engine model and accessibility.

Question 5

Do you service both seawater and freshwater cooling systems?

Lukas · Accepted Answer

Yes, we service both raw water (seawater) and closed-loop freshwater cooling systems. We inspect heat exchangers, replace water pumps, clean strainers, and flush lines for proper flow and cooling.

Question 6

Can a bad water pump damage my marine engine?

Lukas · Accepted Answer

Definitely. A faulty pump can lead to severe overheating, warped heads, or engine failure. That’s why we recommend annual impeller checks and pump inspections – especially before the season starts.

Question 7

Do you offer warranty on water pump repairs?

Lukas · Accepted Answer

Yes, our repairs come with a 3–12 month labor warranty, depending on the job. New pump installations and impellers include manufacturer warranties. We also provide full service records for your engine logs.

Question 8

What are the symptoms of a failing circulation pump or thermostat?

Fryderyk Florczak · Accepted Answer

Common symptoms include engine overheating, fluctuating temperature readings, poor cabin heater performance, alarms, or reduced water flow at the exhaust. A failing circulation pump may also leak or make unusual noises, while a stuck thermostat can cause slow warm-up or sudden overheating.

Question 9

Can you test the circulation pump and thermostat without replacing parts right away?

Fryderyk Florczak · Accepted Answer

Yes. We perform full diagnostic testing before recommending replacement. This includes temperature verification, flow testing, thermostat opening temperature checks, and inspection for leaks or internal wear. Only faulty components are replaced, helping you avoid unnecessary costs.

Question 10

What happens if I keep running the engine with a bad thermostat or pump?

Fryderyk Florczak · Accepted Answer

Continuing to operate the engine can lead to severe overheating, warped cylinder heads, blown head gaskets, or internal engine damage. Early testing and repair of the circulation pump or thermostat can prevent major and expensive engine failures.

Question 11

Do you test both raw water and closed-loop cooling systems?

Fryderyk Florczak · Accepted Answer

Yes. We service both raw water–cooled and closed-loop (freshwater) cooling systems. We verify proper coolant circulation, thermostat operation, hose condition, and overall cooling efficiency based on your engine type and manufacturer specifications.

Question 12

How long does circulation pump and thermostat testing usually take?

Fryderyk Florczak · Accepted Answer

Most inspections take between 1 and 2 hours, depending on engine access and configuration. If replacement is needed, we provide a clear estimate before starting any additional work. Our goal is minimal downtime and reliable results.

Question 13

Do you replace marine thermostats and circulation pumps if needed?

Fryderyk Florczak · Accepted Answer

Yes. We replace marine-grade thermostats and circulation pumps using OEM or high-quality equivalent parts. All installations follow manufacturer torque and sealing specifications to ensure proper cooling system performance and long service life.

Question 14

Do you provide service reports or recommendations after testing?

Fryderyk Florczak · Accepted Answer

Absolutely. After testing, you receive a clear report outlining system condition, test results, and recommendations. This documentation is useful for maintenance planning, warranty records, and resale value. Service is available in Newport Beach and Long Beach marinas.

Question 15

What is a raw water impeller and why is it critical for my engine?

Fryderyk Florczak · Accepted Answer

The raw water impeller is a rubber rotor inside the seawater pump that pulls cooling water from the ocean or lake into your engine. If it fails, the engine can overheat within minutes, leading to serious damage such as warped heads or exhaust system failure. Regular impeller replacement is essential for engine reliability.

Question 16

How often should the raw water impeller be replaced?

Fryderyk Florczak · Accepted Answer

Most manufacturers recommend replacing the raw water impeller every 12 months or every 100 hours of operation, whichever comes first. Boats used in saltwater, shallow water, or warm climates like Southern California should not skip this interval, even if the impeller looks fine.

Question 17

What are the warning signs of a failing impeller?

Fryderyk Florczak · Accepted Answer

Common symptoms include reduced water flow from the exhaust, rising engine temperature, overheating alarms, steam, or a burnt rubber smell. In some cases, an impeller can fail without obvious warning, which is why preventive replacement is strongly recommended.

Question 18

Do you inspect anything else during an impeller replacement?

Fryderyk Florczak · Accepted Answer

Yes. During the service we inspect the pump housing, wear plate, seals, and cam for damage. We also check for broken impeller vanes in the cooling system, which can block heat exchangers and cause overheating later if not removed.

Question 19

Can a broken impeller damage other engine components?

Fryderyk Florczak · Accepted Answer

Absolutely. If impeller blades break off, they can clog oil coolers, heat exchangers, or engine passages. This often leads to chronic overheating and expensive repairs. Proper inspection and debris removal during replacement is critical to avoid future failures.

Question 20

Do you replace impellers dockside or does the boat need to be hauled out?

Fryderyk Florczak · Accepted Answer

Most raw water impeller replacements are performed dockside with no haul-out required. We service boats directly in Newport Beach and Long Beach marinas, minimizing downtime and getting you safely back on the water as quickly as possible.

Water pump repair boat

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