Yanmar Marine Engine Oil Type & Capacity
Knowing the correct oil type, engine-oil capacity and filter number is essential when servicing a Yanmar marine diesel. This Yanmar marine engine oil type and capacity chart covers popular YM, JH, LH, LP, LY and CX-series engines, while our Marine Diesel Troubleshooting Guide can help diagnose low oil pressure, excessive oil consumption, blue smoke, overheating […]
Cummins Marine Engine Oil Type & Capacity Chart
Knowing the correct engine oil type, oil capacity and oil filter is essential for maintaining a reliable Cummins marine diesel. This guide covers Cummins 4BT, 4BTA, 6BT, 6BTA, 6CT, 6CTA, QSB, QSC, QSL, QSM11 and QSK19 engines. If your engine has low oil pressure, excessive oil consumption, blue smoke or another operating problem, visit our […]
Yacht Engine Surging at Cruise RPM
Yacht Engine Surging at Cruise RPM (Complete Marine Diesel Diagnosis Guide) If your yacht engine is surging at cruise RPM—fluctuating in speed, hunting, or failing to hold steady throttle—you are dealing with a classic fuel and combustion stability issue. This is one of the most common real-world problems we diagnose throughout Ventura, Oxnard, Channel Islands […]
Yacht Engine Losing Power Under Load
Yacht Engine Losing Power Under Load (Complete Marine Diesel Diagnosis Guide) If your yacht engine is losing power under load—struggling at cruise, failing to reach RPM, or feeling weak under throttle—you are dealing with one of the most important diagnostic symptoms in marine diesel engines. This condition almost always indicates a restriction, imbalance, or inefficiency […]
Yacht Engine Hard Starting When Cold
Yacht Engine Hard Starting When Cold (Complete Marine Diesel Diagnosis Guide) If your yacht engine is hard to start when cold, you are dealing with one of the earliest warning signs of system inefficiency in a marine diesel engine. Cold-start problems are rarely isolated—they are a combination of fuel delivery issues, compression loss, injector inefficiency, […]
Yacht Engine Overheating at Cruise RPM
Yacht Engine Hard Starting When Cold (Complete Marine Diesel Diagnosis Guide) If your yacht engine is hard to start when cold, you are dealing with one of the earliest warning signs of system inefficiency in a marine diesel engine. Cold-start problems are rarely isolated—they are a combination of fuel delivery issues, compression loss, injector inefficiency, […]
Yacht Engine Blue Smoke While Running
Yacht Engine Blue Smoke While Running – Marine Diesel Diagnosis Guide If your yacht engine is producing blue smoke while running, it is almost always a sign that engine oil is entering the combustion process. Unlike black smoke (fuel imbalance) or white smoke (unburned fuel or coolant), blue smoke points directly to oil control problems, […]
Yacht Engine Black Smoke Under Load
Yacht Engine Black Smoke Under Load – Marine Diesel Diagnosis Guide If your yacht engine produces black smoke under load, it is one of the clearest indicators that combustion is incomplete. In simple terms, the engine is receiving more fuel than it has air to burn efficiently. This imbalance is almost always tied to turbocharger […]
Yacht Engine White Smoke at Startup – Marine Diesel Diagnosis Guide
Yacht Engine Black Smoke Under Load – Marine Diesel Diagnosis Guide If your yacht engine produces black smoke under load, it is one of the clearest indicators that combustion is incomplete. In simple terms, the engine is receiving more fuel than it has air to burn efficiently. This imbalance is almost always tied to turbocharger […]
Yacht Engine Turbo Failure – Marine Diesel Diagnosis Guide
Yacht Engine Turbo Failure – Complete Marine Diesel Diagnosis Guide If your yacht engine is experiencing turbo failure, the symptoms usually show up quickly: loss of power, black or blue smoke, slow acceleration, or the engine not reaching full RPM. On an inboard marine diesel, the turbocharger is critical to combustion efficiency, and when it […]