A Mariner Engineering service van beside a yacht on the hardstand in Williamstown

    Yacht servicing · Motor & sail · Melbourne

    Yacht servicing, brought to your berth.

    Motor yachts and sailing yachts, single or twin. Serviced to the manufacturer’s schedule by an authorised Volvo Penta and Yanmar dealer, with a clear rundown of what’s urgent and what can wait.

    • Authorised Volvo Penta & Yanmar dealer
    • Servicing Melbourne boats since 1995
    • Motor and sailing yachts
    • At your berth across Port Phillip Bay

    Book your yacht service

    Tell us about the boat. It takes under a minute.

    Boat
    Engine make
    What do you need?

    We aim to reply within 1 business day, with a clear quote before any work starts. Or call (03) 9399 5888

    Your setup

    Motor yacht or sailing yacht?

    The engine is only part of it. Pick your boat to see what a service covers, and what’s worth knowing.

    Sportscruisers, flybridge cruisers and motor yachts, on shafts, sterndrives or pods. We service the engines, the drives and the running gear behind them.

    • Engine oil, filters and impellers
    • Fuel filters and water separators
    • Drive or gearbox oil and anodes
    • Engine mounts and shaft alignment
    • Cooling system checks
    • Fault-log read on electronic Volvo Penta and Yanmar engines
    Thinking about a repower?

    What you get

    You’ll know exactly where your engine stands.

    Every service ends with a plain-English rundown. Each item is marked done, keep an eye on, or needs attention, so you can see what’s urgent and what can wait. Anything beyond the service is quoted first.

    • A record of every service, engine by engine
    • Kept for your warranty and resale history
    • What’s due next, so you can plan around the season

    Servicing and your warranty

    Both Volvo Penta and Yanmar warranties expect maintenance to the manufacturer’s schedule, with records kept. Volvo Penta’s excludes faults caused by non-genuine parts or by repairs outside its authorised network; Yanmar’s excludes service by unauthorised facilities. Your warranty documents set out the terms. As an authorised dealer for both, we service to the schedule with genuine parts and record every visit. Your rights under the Australian Consumer Law apply in addition to these terms.

    Service rundown

    Sailing yacht · Yanmar · Saildrive · 1,100 hours

    Example
    • Engine oil and filter

      Done
    • Fuel filters

      Bled and checked for water.

      Done
    • Seawater pump impeller

      Replaced.

      Done
    • Saildrive oil

      Clean, no sign of water.

      Done
    • Saildrive anode

      Renewed.

      Done
    • Exhaust mixing elbow

      Some carbon build-up, cleaned. Due for replacement on Yanmar’s schedule.

      Keep an eye on
    • Saildrive diaphragm

      Due on Yanmar’s schedule. Quoted to replace at the next haul-out.

      Needs attention
    Next service: due on Yanmar’s schedule, before next summer.
    Illustrative example, not a real customer’s boat.

    Something not right?

    Signs your engine wants attention.

    Many problems give a warning first. If you’ve noticed one of these, it’s worth a look before it turns into a lost weekend.

    • An overheating alarm

      Often a worn seawater impeller, a blocked intake or strainer, or a fouled heat exchanger. Simpler to fix early, and costly if it keeps happening.

    • Hard starting

      Can point to batteries and connections, air or water in the fuel, or worn components.

    • Won’t reach full rpm

      Usual suspects include blocked fuel filters, a fouled hull or propeller, and the air supply.

    • Smoke you haven’t seen before

      Black smoke usually means the engine is overloaded or short of air. White or blue smoke points elsewhere. Note the colour and tell us.

    • Grey or milky drive oil

      Water is getting into the saildrive or sterndrive. Get it looked at before the gears suffer.

    • New vibration or noise

      A damaged or fouled propeller, engine mounts or alignment are the usual suspects. Worth catching before it wears anything else.

    Timing

    Book around the boating season.

    A little planning means the boat is ready on the first good weekend, not the third.

    78%

    of maritime incidents reported in Victoria in 2024–25 were vessel breakdowns, most of them engine failure or running out of fuel.

    Source: Safe Transport Victoria
    1. August to October

      Pre-season service

      Book before the rush. November to Easter is our busiest period, so a service in late winter or early spring has the boat ready for the first good weekend.

      Book a pre-season service
    2. November to Easter

      On the water

      Peak boating, and our busiest months. If an alarm won’t clear or something doesn’t feel right mid-season, call us.

    3. Easter to July

      Bigger jobs

      The best time for haul-outs, drive and running-gear work and winterisation, with the least boating missed.

    The Mariner Engineering team lowering an engine into a yacht’s engine bay in Williamstown

    Who you're dealing with

    An authorised Volvo Penta and Yanmar dealer, looking after Melbourne boats since 1995.

    Our technicians bring genuine Volvo Penta and Yanmar parts and dealer diagnostics to your berth, and bigger jobs come back to our Spotswood workshop.

    • Authorised Volvo Penta & Yanmar dealer
    • Factory-trained on Volvo Penta and Yanmar
    • Genuine Volvo Penta and Yanmar parts on the shelf
    • Also an authorised Twin Disc dealer and ZF Marine Service Point
    Unit 12/2 Burleigh Street, Spotswood VIC 3015

    The engines we look after

    Authorised dealerVolvo PentaYanmar
    Independent serviceScaniaCumminsCaterpillarMTUMANJohn Deere
    GearboxesTwin DiscZF

    We’re an authorised Volvo Penta, Yanmar and Twin Disc dealer and a ZF Marine Service Point, and service the other makes listed as independent specialists.

    Questions

    What yacht owners ask us

    Do you service both motor yachts and sailing yachts?

    Yes. We look after sailing-yacht auxiliaries and saildrives through to single and twin-engine motor yachts, including running gear, shafts and drive lines. On a sailing yacht, that includes Volvo Penta D1 servicing, on saildrive or shaft.

    Which engines do you service?

    We’re an authorised Volvo Penta and Yanmar dealer, and we also service Scania, Cummins, Caterpillar, MTU, MAN and John Deere marine engines as independent specialists.

    Do I need to bring the boat to you?

    No. We service boats at their berth or on the hardstand around Port Phillip Bay. Work that needs the boat out of the water is planned with your yard, and bigger jobs come into our Spotswood workshop.

    When is the best time to book a service?

    Before the season, so the boat is ready when you are, and again before winter if it will sit for a while. Book a few weeks ahead in spring, when everyone wants their boat back in the water.

    How do I book?

    Use the booking form at the top of this page or call (03) 9399 5888. We aim to reply within 1 business day.

    Ready when the weather is.

    Tell us about your boat and where she’s berthed, and we’ll take it from there.