Catalina 350 Maintenance Schedule HomeRevision HistoryReference IndexContact/Feedback
Choose a Maintenance Interval >
DailyPeriodicSeasonalOther Maintenance | Master List | Winterizing Procedure
Or Choose a System > EngineRiggingElectricalPlumbingHVACRefrigerationPropaneSafety
Or Search the Database >
> 37 Engine Maintenance Items
Engine > Daily > Fuel Supply - Check fuel supply (try to keep tank full to minimize condensation). Use diesel No. 2 rating of 45 cetane or higher.
Reference > Operator's Manual, p.12
Engine > Daily > Fuel/Water Separator - Check for water and dirt in fuel (drain/replace filter if necessary). Use Racor W2010TMOR (Blue 10 micron filter).
Reference > Operator's Manual, p.12Racor Model 500FG InformationRacor Model 500FG SpecificationsFilter Replacement Procedure
Engine > Daily > Engine Oil Level - Oil level should indicate between MAX and LOW on dipstick; The low oil pressure warning light will illuminate if pressure falls below 7 psi (If this happens, stop the engine immediately and check the cause of the oil pressure drop). Use 4 quarts API Spec CF or CG-4, SAE 30, 15W-40, 10W-30 or 5W-40.
Reference > Operator's Manual, p.12Service Manual, p.49Westerbeke oil recommendations
Engine > Daily > Coolant Level - Check level at recovery tank; if empty, check at manifold; Add coolant if needed. Use 50/50 solution. 6 quarts capacity.
Reference > Operator's Manual, p.12
Engine > Daily > Drive Belt - Inspect for proper tension (3/8" to 1/2" depression) and adjust if needed; Check belt edges for wear. Use Universal Belt #30475.
Reference > Operator's Manual, p.12Service Manual, p.45
Engine > Daily > Visual Inspection of Engine - Check for fuel, oil and water leaks; Inspect wiring and electrical connections; Keep bolts and nuts tight; Keep engine surface clean.
Reference > Operator's Manual, p.12
Engine > Daily > Adjust Engine Idle Speed - Adjust to 750-1200 rpm.
Reference > Operator's Manual, p.12Service Manual, p.46
Engine > Periodic > Heat Exchanger Zinc Anode - Check anode monthly and clean or replace as needed; Open heat exchanger end cap and clean out debris. Use Universal zinc #11885 or West Marine #332155.
Reference > Operator's Manual, p.13Service Manual, p.53
Engine > Periodic > Fuel System - Check fuel tank fittings and hose clamps.
Reference > C350 Owner's Manual, p.11Picture of fuel tank and fittings
Engine > Periodic > Tighten Bolts - Tighten all bolts and nuts to proper torque.
Reference > C350 Owner's Manual, p.11Torque Specs
Engine > Periodic > Exhaust System - Disassemble and inspect cooling system anti-siphon.
Reference > C350 Owner's Manual, p.11Torque SpecsPicture of anti-siphon valve
Engine > Periodic > Engine Hoses - Hose should be hard and tight; Replace if soft or spongy; Check and tighten all hose clamps; Check at 50, 100, and every 250 hours.
Reference > C350 Owner's Manual, p.13
Engine > Periodic > PSS Shaft Seal - Inspect bellows on a regular basis (no less than at least every 6 months under most circumstances); Check for any signs of deterioration (cracks, splits, tears, brittleness, etc.); Upon any sign of deterioration the bellow must be replaced; If the boat sits idle for a long period of time (generally 3 months or more), it is necessary to move the carbon face back to allow a small amount of water to enter the boat.
Reference > PSS Shaft Seal Installation Instructions
Engine > Seasonal > Engine Oil & Filter - Initial engine oil & filter change at 50 hours, then change both every 100 hours or end of season. Use 4 quarts API Spec CF or CG-4 SAE 30, 15W-40, 10W-30 or 5W-40. Use Universal oil filter #300209.
Reference > Operator's Manual, p.12Operator's Manual, p.17Westerbeke oil recommendations
Engine > Seasonal > Transmission Fluid - Initial fluid change at 50 hours, then every 250 hours or end of season. Use ATF - type A or Dextron - II or III. Capacity is 0.59 quarts.
Reference > Operator's Manual, p.12Operator's Manual, p.35
Engine > Seasonal > Fuel Filters - Initial change at 50 hours, then change every 250 hours or end of season. Use Racor filter #W2010TMOR (Blue 10 micron filter). Use Universal fuel filter #298854.
Reference > Operator's Manual, p.12Operator's Manual, p.20
Engine > Seasonal > Electric Fuel Lift Pump Filter - Clean at 50 hours, then clean every 250 hours or annually. Use Westerbeke P/N 48076 80 micron filter.
Reference > Operator's Manual, p.13Picture of Filter
Engine > Seasonal > Air Cleaner - Clean the filter and element; Every 250 hours.
Reference > Operator's Manual, p.12Operator's Manual, p.19
Engine > Seasonal > Raw Water Pump - Remove pump cover and inspect impeller for wear; replace if needed; Also replace gasket; Lubricate both when reassembled; Inspect pump for internal wear, cover plate wear and cam wear; Check at 250, then every 500 hours. Use Universal impeller kit #200175.
Reference > Operator's Manual, p.13Service Manual, p.52
Engine > Seasonal > Key Switch - Lubricate panel key switch with "Lockeze" - At first 100 hours, then each year at winterizing.
Reference > Operator's Manual, p.12
Engine > Seasonal > Shaft Alignment - Check gap between coupling flanges.
Reference > C350 Owner's Manual, p.12Installation Manual, p.10
Engine > Seasonal > Clean Motor - Clean motor thoroughly.
Reference > C350 Owner's Manual, p.12
Engine > Seasonal > Fuel System - Inspect fuel system.
Reference > C350 Owner's Manual, p.12Picture of fuel tank and fittings
Engine > Seasonal > Tune Engine - Tune engine as per manufacturer's recommendations.
Reference > C350 Owner's Manual, p.12
Engine > Seasonal > Exhaust System - Check for leaks, or deterioration, insulation in place.
Reference > C350 Owner's Manual, p.12
Engine > Seasonal > Control Cables and Shutoff Levers - Throttle and transmission control cables and shutoff levers - Check for loose fittings, cotter pins, etc; Lubricate with WD-40 or equivalent; Check at 50, then every 250 hours.
Reference > Operator's Manual, p.12Operator's Manual, p.27Operator's Manual, p.34
Engine > Other > Exhaust System - Initial check at 50 hours, then every 500 hours; Inspect for leaks; Check siphon break operation; Check the exhaust elbow for carbon and/or corrosion buildup on inside passages; clean and replace as necessary; Check that all connections are tight.
Reference > Operator's Manual, p.12C350 Owner's Manual, p.11Picture of anti-siphon valve
Engine > Other > DC Alternator - Check DC charge from alternator; Check mounting bracket; tighten electrical connections; Check at 250, then every 500 hours.
Reference > Operator's Manual, p.13
Engine > Other > Coolant System - Drain, flush and refill cooling system with appropriate antifreeze mix every 500 hours. 6 quarts capacity, use 50/50 solution.
Reference > Operator's Manual, p.13
Engine > Other > Starter Motor - Check solenoid and motor for corrosion; Remove and lubricate; Clean and lubricate the starter motor pinion drive; Every 500 hours. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Preheat Circuit - Check operation of preheat solenoid; Remove and clean glow plugs; check resistance (1.1-1.2 ohms); Every 500 hours. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Cylinder Compression and Valve Clearance - Check compression pressure and timing, and adjust valve clearances; Every 500 hours . Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Fuel Injectors - Check and adjust injection opening pressure spray condition; 750 hours. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Heat Exchanger - Remove every 1000 hours for professional cleaning and pressure testing. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Engine Transmission Damper Plate - Chattering at idle and low rpms is an indication of damper plate wear; Remove and replace; 1000 hours. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.13
Engine > Other > Torque Cylinder Head Hold Down Bolts - At engine overhaul or cylinder head overhaul. Universal recommends this service be performed by an authorized mechanic.
Reference > Operator's Manual, p.12
Engine > Other > PSS Shaft Seal - As preventive maintenance the bellow should be replaced no less than every six (6) years, regardless of its apparent condition.
Reference > PSS Shaft Seal Installation Instructions
Website by Heller Solutions