Boat Engine Maintenance & Mechanical Service

Routine & Preventative Maintenance

Preventative service reduces breakdowns, extends engine life, and protects resale value. 

Oil & Filter Change 

Routine oil and filter changes reduce internal wear and protect critical engine components. We use manufacturer-approved marine oils and filters to ensure proper lubrication and long-term reliability. 

100-Hour Outboard Service 

Our comprehensive 100-hour service includes oil and filter replacement, gear lube service, spark plug inspection or replacement, cooling system checks, and a full mechanical inspection to maintain factory performance standards. 

Spark Plug Replacement 

Worn spark plugs reduce fuel efficiency and power output. We inspect and replace plugs to ensure consistent ignition and smooth engine operation. 

Thermostat Replacement 

Faulty thermostats can lead to overheating or inefficient engine temperatures. We inspect and replace thermostats to maintain proper operating range. 

Why Choose Intrinsic Yacht & Ship for Engine Service

• 25+ years serving Annapolis & Ocean City boaters 

• Certified marine technicians 

• Manufacturer-recommended service procedures 

• Genuine OEM parts 

• Transparent scheduling and communication 

We understand the demands of Mid-Atlantic boating conditions and service every vessel with long-term reliability in mind. 

Generator Maintenance

Reliable onboard power requires routine service. 

Generator Oil & Filter Change 

We provide scheduled generator maintenance to ensure dependable onboard electrical power while protecting internal components. 

Cooling & Performance Systems

Proper cooling is essential for marine engine longevity in both Chesapeake Bay and offshore conditions. 

Impeller Replacement 

The impeller is critical to your engine’s cooling system. Routine replacement prevents overheating and protects against costly internal damage. 

Heat Exchanger Service 

Salt buildup and debris reduce cooling efficiency. We inspect and service heat exchangers to restore proper temperature regulation. 

Aftercooler Service 

Maintaining aftercoolers ensures optimal air intake temperatures and overall engine performance. 

Exhaust Manifold & Riser Inspection 

We inspect for corrosion and blockages that can restrict exhaust flow or lead to engine damage. 

Propulsion & Drive Systems 

Power delivery and drivetrain health are essential for smooth performance. 

Gear Lube Fluid Change 

Fresh gear lube protects gears and bearings from excessive wear and contamination. 

Outdrive Service 

We inspect seals, bellows, and drive components to maintain proper power transfer and prevent water intrusion. 

Transmission Service 

Routine transmission inspection and service ensure smooth shifting and dependable propulsion.