125 Harbor Way

Santa Barbara, CA 93101

(805) 774-0637

24/7 Customer Support

Mon - Fri: 9:00 - 5:30

On call service available

Hynautic shifter control rebuild project

Rebuilt Hynautic shifter control slave cylinders restored by 805 Marine Mechanic for dual-engine marine vessels in Ventura, Oxnard, and Santa Barbara

Rebuilt Hynautic shifter control slave cylinders restored by 805 Marine Mechanic for dual-engine vessels operating in Ventura, Oxnard, Channel Islands Harbor, and Santa Barbara. Schedule Hydraulic Control Service Master Marine Diesel Troubleshooting Guide When a boat relies on a Hynautic hydraulic engine control system, smooth shifting and throttle response are critical for safe docking, maneuvering, […]

Diesel Fuel Contamination in Santa Barbara & Ventura

Racor fuel water separator filter extremely clogged at Channel Islands boat harbor

Fuel contamination in warm coastal harbors is one of the most common causes of marine diesel filter clogging, power loss, hard starting, and offshore shutdowns in Santa Barbara, Ventura, Oxnard, and Channel Islands Harbor. Schedule a Fuel System Inspection Master Marine Diesel Troubleshooting Guide Fuel contamination is one of the most common causes of marine […]

Saltwater Damage Prevention for Marine Diesels

Marine Engine Seawater pump impeller with serious damage

Saltwater damage prevention for inboard marine diesel engines in Santa Barbara, Ventura, Oxnard, and Channel Islands Harbor, including impeller failure, seawater pump corrosion, heat exchanger scale, aftercooler care, zinc protection, and fresh water flushing strategy. Schedule Saltwater Damage Inspection Master Marine Diesel Troubleshooting Guide Santa Barbara, Ventura, Oxnard, and the Channel Islands offer some of […]

Ford Lehman 120 Marine Engine Room Restoration

engine room restoration completed

Ford Lehman 120 engine room restoration after painting and system upgrades. This Ford Lehman 120 twin-engine restoration shows what a clean, methodical marine diesel refit should look like. Before any paint was applied, the engine room was evaluated as a full operating system: starting, cooling, fuel filtration, bilge safety, plumbing access, wiring layout, and long-term […]

Cummins 6BTA 5.9 Repower

Fiat Powertrain FPT NEF-400 5.9 Marine Engine

Repowering Your Cabo 35: From Cummins 6BTA 5.9 to the FPT NEF-400 5.9 Unlock new power, efficiency, and reliability with a professional marine repower in Santa Barbara, Ventura, or the Channel Islands. Contact 805 Marine Mechanic → Why Cabo 35 owners are choosing to repower now The Cabo 35 Express and Flybridge are among the […]

ZF Marine Transmission & Accessory Experts | 805 Marine Mechanic

replacing seal in a ZF marine transmission

ZF marine transmission disassembly during seal replacement and inspection. A ZF marine transmission is only as reliable as the system around it. Slipping, delayed engagement, overheating, or vibration should never be treated as isolated gearbox issues. The correct approach starts with the Master Marine Diesel Troubleshooting Guide to separate engine, drivetrain, cooling, and control problems […]

Sherwood Marine Engine Pump Maintenance

Cummins-Sherwood- pump G1503

Failed Sherwood impeller with missing vanes—one of the most common causes of overheating. A failing Sherwood raw-water pump is one of the most common causes of marine diesel overheating—and one of the most overlooked. These pumps handle continuous saltwater flow under load, and when they start to fail, the symptoms often show up across the […]

Baudouin 6M26.3 Engine Service

Baudouin 6M26.3 Marine Engine Service

Baudouin 6M26.3 marine propulsion engine in service configuration. The Baudouin 6M26.3 marine diesel engine is built for high-load propulsion, modern emissions compliance, and long service intervals—but like any advanced diesel platform, its performance depends on the entire system working correctly. Before troubleshooting or servicing, always reference the Master Marine Diesel Troubleshooting Guide to separate fuel, […]

Top Reasons to Hire a Mobile Marine Mechanic in Ventura, CA

805 marine diesel mechanic logo

Professional mobile marine diesel service in Ventura and surrounding harbors. Hiring a mobile marine mechanic in Ventura is one of the most practical decisions a boat owner can make—but only if the service is backed by real diagnostic expertise. Before scheduling any work, it’s important to start with the Master Marine Diesel Troubleshooting Guide to […]

Marine Diesel Engine Rebuild

Marine Diesel Engine Rebuild Services

Complete marine diesel engine rebuild in progress with precision component inspection. A marine diesel engine rebuild is one of the most important decisions a boat owner will face—and one that should never be based on guesswork. Loss of power, excessive smoke, vibration, or repeated breakdowns often point to deeper mechanical wear. Before committing to a […]