Otter Marine
Engine service and oil changes
Oil and filter changes, tune ups, and scheduled service at your slip
Boat service without leaving your slip
Engine maintenance, cooling-system work, electrical diagnosis, and outboard repair across LA’s major harbors. No tow, no haul, no yard wait.
Oil changesAnnual service100-hour200-hourElectrical
What we fix at your slip
Impeller and water pump
Cooling system service before it overheats
Electrical and diagnostics
Charging, wiring, and no start troubleshooting
Outboard service
Lower unit, gear oil, and outboard repairs
Learn before you schedule service
Use the maintenance, troubleshooting, and electrical guide collections to understand the symptom, prepare the right engine information, and know when professional diagnosis is the next step.
Boat Engine Maintenance Guides
Oil changes, annual maintenance, engine-hour service, impellers, cooling systems, and practical schedules for keeping a boat ready to run.
- The Complete Boat Maintenance Checklist
- What Does a 100-Hour Boat Engine Service Include?
- How Often Should You Change the Oil in a Boat Engine?
Boat Engine Troubleshooting Guides
Plain-language guidance for no-starts, overheating, power loss, stalling, and other symptoms that need a disciplined diagnosis.
- Boat Engine Won't Start? Check These Things First
- Why Is My Boat Engine Overheating?
- Why Does My Boat Lose Power Under Load?
Marine Electrical Guides
Safe guidance for batteries, charging systems, starting circuits, corroded wiring, electronics resets, and common 12-volt faults.
- Why Does My Boat Battery Keep Dying?
- Boat Battery or Alternator? How to Recognize the Difference
- Common Causes of Corroded Boat Wiring
A better service visit from arrival to closeout
At your slip
We bring the diagnostic and service tools to your marina.
Test before parts
We isolate the fault before recommending a repair.
Documented closeout
You receive a clear summary of the work completed.
Ready to get your boat running right?
We come to your slip in Marina del Rey, Long Beach, San Pedro, and beyond. Tell us your engine and your slip number and we handle the rest.