Main Engine 4-Stroke · Main Engines (4-Stroke)
The MAN 14PC4.2 is a 14‑cylinder V‑type medium‑speed diesel main engine with sequential turbocharging, delivering up to 19 320 kW at 400 rpm for high‑power naval and commercial ships.
| Fuel injector overhaul | commonly in the region of 8,000-12,000 running hours for this engine class - confirm against MAN's own maintenance manual for the PC4.2/PA6B family and actual fuel quality |
|---|---|
| Top overhaul (valves, injectors, liner inspection) | commonly in the region of 12,000-18,000 hours - manual and duty-cycle dependent |
| Major overhaul (bearings, piston/liner renewal as needed) | commonly in the region of 24,000-32,000+ hours - manual and duty-cycle dependent |
| Lube oil analysis | every 250-500 running hours, or per manufacturer's condition monitoring programme |
| Crankshaft deflection readings | at intervals set by class - commonly annually or at each survey window |
| Turbocharger inspection/cleaning | per manufacturer's manual, commonly at running-hour intervals with on-condition washing in between |
| Piston ring end gap | typically in the region of 0.8-1.5 mm for a new ring set on this bore class - always confirm against the engine's own manual, as ring gap scales with bore size |
|---|---|
| Main/big-end bearing clearance | typically in the region of 0.1-0.3 mm for medium-speed engines of this bore class - confirm against the engine's own manual |
| Cylinder liner wear (diametral) | commonly assessed against a maximum wear limit in the region of a few tenths of a millimetre per 100 mm of bore - use the engine manual's own renewal criterion, not a generic figure, when deciding on liner renewal |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
This engine is typically under Continuous Survey Machinery (CSM) or an equivalent periodical survey regime; class wants crankshaft deflection records, cylinder unit opening records (which units, when, findings), and turbocharger/bearing inspection records kept current and matched to actual running hours - gaps or overdue CSM items are a common finding on engines of this size.
Estimated lifetime: Medium-speed engines of this class are commonly designed around a major-overhaul cycle in the tens of thousands of running hours (often cited in the 60,000-100,000+ hour range between major overhauls with proper maintenance), with individual components such as liners, bearings, and injectors renewed on their own shorter cycles well before that - treat this as a rough planning figure and follow MAN's own maintenance schedule for the PC4.2/PA6B family.
Free of charge — send us your request for MAN Energy Solutions equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, MAN Energy Solutions first.
Tell us what you need for this MAN Energy Solutions 14PC4.2 — a part, a service call, a second opinion. Are you MAN Energy Solutions? Claim this brand page.
Service engineer? Write the day report for this 14PC4.2 in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.