Business Details
Expert Marine Diesel Repair Services in Long Beach
Signet Marine has established itself as a trusted provider of specialized marine diesel repair and maintenance services. With over four decades of experience serving the Southern California yachting community, we relocated to an expanded facility at Cabrillo Boat Shop in Long Beach to better serve our clients. Our team of skilled technicians specializes in servicing legacy diesel engines from 40-50 years ago, offering critical expertise that preserves the functionality of these historic systems. We provide comprehensive mechanical maintenance covering pumps, 12-volt electrical systems, instrumentation, and general marine systems onboard vessels. Our mobile marine diesel service extends to upper Cabrillo Marinas and Los Angeles/Long Beach Harbors, ensuring accessibility for both commercial and recreational clients.As a manufacturer of marine instruments and sensors in our Long Beach facility, we maintain inventory control while supporting special projects. Our technical documentation library and calibration guides demonstrate our commitment to transparency and client education. We distinguish ourselves through our proprietary Hall Effect Speed Sensor technology, recognized for superior calibration consistency in knot meters. Our business model combines technical expertise with personalized service, maintaining regular business hours while offering appointment scheduling for specialized needs.
Services
Marine Diesel Repair
Mobile Service
Electrical Maintenance
Instrumentation Repair
Mechanical Maintenance
Highlights and features
- Specializing in 40-50 year old diesel engine systems
- Mobile service covering Los Angeles/Long Beach Harbors
- In-house manufacturing of marine instruments and sensors
- Proprietary Hall Effect Speed Sensor technology
- Technical expertise with legacy marine systems
Services
Marine Diesel Repair
Specialized repair and maintenance of marine diesel engines, particularly focusing on legacy systems from 40-50 years ago. Our technicians possess rare expertise in maintaining operational integrity of historic diesel technology while implementing modern solutions. This service ensures continued reliability for commercial and recreational vessels operating in Southern California waters.
Mobile Service
Comprehensive mobile service covering upper Cabrillo Marinas and Los Angeles/Long Beach Harbors. Our technicians bring specialized tools and replacement parts directly to vessels, minimizing downtime for boat owners. This service includes diagnostics, emergency repairs, and scheduled maintenance for diesel systems and onboard mechanical components.
Instrumentation Repair
Repair and calibration of marine instrumentation systems including knot meters and depth gauges. We maintain compatibility between legacy sensors and modern display systems while offering proprietary Hall Effect Speed Sensor upgrades. This service ensures accurate performance monitoring for both traditional and high-speed marine platforms.
Questions
What marine diesel services do you offer?
We specialize in repair and maintenance of legacy marine diesel engines, onboard mechanical systems, and instrumentation for vessels in Southern California.
Do you service older boat engines?
Yes, we specialize in diesel engines from 40-50 years ago, maintaining expertise in systems no longer supported by manufacturers.
Are you available for mobile service?
We provide mobile service to upper Cabrillo Marinas and Los Angeles/Long Beach Harbors for diagnostics and repairs.
What technical resources are available?
We provide wiring diagrams, calibration guides, and technical specifications through our online documentation library.
Do you manufacture marine components?
Yes, we manufacture marine instruments and sensors in our Long Beach facility, supporting both repairs and upgrades.
