Inboard engines require rigorous monitoring to ensure reliability and longevity. NV Marine handles the complete servicing of your propulsion system: oil changes, belt replacement, cooling circuit checks, gearbox inspection and exhaust system verification.
NV Marine works on both diesel and petrol engines of all brands. In the event of a malfunction, an in-depth diagnosis pinpoints the exact source of the problem and a tailored repair plan is drawn up.
Every service is documented so you can track your boat's maintenance history — an asset for its resale value and your peace of mind at sea.
In detail
Inboard engines require specific expertise and on-board access to carry out work to the highest standards. NV Marine handles the complete servicing of inboard propulsion systems, both diesel and petrol.
A periodic service includes engine and transmission oil changes, filter replacement (oil, fuel, air), cooling system checks, prop shaft inspection, hull gland checks and sacrificial anode inspection. Every point is methodically examined to prevent breakdowns at sea.
NV Marine also carries out diagnosis and repair of inboard engine faults: cooling problems, starting issues, transmission failures and turbocharger faults. A rigorous diagnosis always precedes any parts order.
Inspection of the prop shaft, propeller and couplings is systematically performed during services to ensure the absence of vibrations and optimal power transmission.
Why NV Marine?
On-site intervention at your port, quote within 24h, qualified technician with 15+ years of experience on the Hérault coastline.
- 01Full visual inspection of the engine compartment
- 02Engine and gearbox oil change
- 03Filter and wear-part replacement
- 04Cooling system and circuit checks
- 05Prop shaft and propeller inspection
- 06Running test and final adjustments
2 to 4 days depending on the work required
Service every 100–150 engine hours or annually
Frequently asked questions
What is the difference between an inboard and an outboard engine?
An inboard engine is built into the hull of the boat, with power transmitted via a prop shaft to the propeller. It generally offers more power and better stability, but requires on-board access for servicing.
How often should an inboard engine be serviced?
A service is recommended every 100 to 150 running hours, or at least once a year. Anodes should be checked at every antifouling.
How can you detect overheating on an inboard engine?
The temperature alarm, an abnormal rise on the gauge or the absence of water at the cooling circuit outlet are the main indicators. If in doubt, stop the engine and contact NV Marine.
Does NV Marine work on diesel inboard engines?
Yes, NV Marine works on diesel inboard engines from all the main manufacturers: Volvo Penta, Yanmar, Nanni and Mercury. Contact us with your engine reference for confirmation.
What is the prop shaft and why is it important?
The prop shaft transmits power from the engine to the propeller. It must be perfectly aligned to avoid vibrations and premature wear. Checking it is essential at every service.
Need a quote?
Fast response · On-site service · Quote on request
