125 Harbor Way

Santa Barbara, CA 93101

(805) 774-0637

24/7 Customer Support

Mon - Fri: 9:00 - 5:30

On call service available

Marine Diesel Fuel System Diagnosis

Marine diesel fuel system diagnosis showing Racor primary filter, secondary filter, lift pump and injection pump - serviced by 805 Marine Diesel Mechanic Ventura California

  Marine Diesel Fuel System Diagnosis: Water, Air & Low Pressure Problems Fuel system failures are the #1 cause of no-start conditions and power loss in marine diesel engines. After 30+ years diagnosing marine engines in Ventura, Oxnard, Channel Islands Harbor and Santa Barbara, we can confidently say most breakdowns start at the fuel system. […]

Electrical & Starting System Diagnosis Center

Electrical & starting system diagnosis center for marine diesel engines showing battery voltage, starter motor, alternator charging, and no-start troubleshooting — 805 Marine Diesel Mechanic Ventura Oxnard Channel Islands Harbor Santa Barbara

Schedule Electrical Diagnosis Back to Master Troubleshooting Guide Electrical & Starting System Diagnosis Center If your marine diesel won’t crank, cranks slow, starts only sometimes, or keeps killing batteries, this hub gives you the fastest symptom-first pathway to the real cause — without random parts swapping. 805 Marine Diesel Mechanic provides mobile marine diesel diagnostics […]

Marine Diesel No Start After Fuel Filter Change

Racor fuel water separator extremely clooged

Marine Diesel No Start After Fuel Filter Change — Complete Troubleshooting Guide Quick Technical Diagnosis Summary: When a marine diesel engine will not start after a fuel filter replacement, the most common cause is air trapped in the fuel system preventing injection pressure from building. Improper priming, incorrect filter installation, damaged seals, or fuel system […]