Page 35: of Marine News Magazine (November 2026)

34 36

When paired with a rear gear train designed to minimize mechanical noise, this technology helps create a quieter en- gine room and improves crew and passenger comfort.

Feedback from the ? eld trials consistently noted imme- diate throttle response under load along with noticeable noise reductions. On commercial passenger ferry routes, limited visible exhaust smoke and vibration helped pro- vide a more comfortable experience for passengers using deck areas above the engine compartment.

While precise fuel management enhances performance on the water, maintaining demanding vessel schedules also depends on reducing dockside service stops.

Extended Intervals

To reduce maintenance downtime, the JD14 and JD18 marine engines feature low-maintenance design com- ponents aimed at extending ? uid service intervals and streamlining routine mechanical servicing.

Increased ? uid capacity and advanced ? ltration systems extend oil change service intervals up to 500 hours when using John Deere Plus-50™ II engine oil. Unlike traditional rubber seawater pump impellers that require frequent in- spection and replacement, the rigid bronze seawater pump impeller is designed for up to 10,000 hours of operation before servicing. Both engines also feature Hydraulic Auto- matic Valve Lash Adjustment, which automatically main- tains the proper clearance between valve train components as thermal expansion and normal wear occur during operation.

By removing periodic manual valve lash adjustments from the scheduled maintenance requirements, this system simpli- ? es engine servicing and helps maximize operational uptime over the engine’s lifespan. The extended service intervals also streamline service labor and reduce maintenance expenses.

Beyond optimizing uptime and reducing maintenance costs, the next opportunity for commercial marine opera- tors is gaining greater visibility into engine health through remote monitoring and diagnostic capabilities while ves- sels are underway.

Integrated Telematics and Connected Support

Telematics played a vital role during ? eld testing, giv- ing John Deere engineers near real-time visibility to trial vessel operating conditions, parameters, and engine health across domestic and international waters. In one instance, the telematics system ? agged an early fuel pressure diag- nostic code. Support teams on shore identi? ed clogged fuel ? lters and alerted the crew to perform routine ? lter maintenance, keeping the engine running at peak perfor- mance. On passenger vessels, operators used John Deere

Connected Support to establish custom speed thresholds