Frequently Asked Questions


How often should I service my Outboard?

Annually or every 100 Hrs, whichever comes first.

Can I mix different coolants in my engine?

Essentially different coolants should not be mixed. Compatibility should be checked with the manufacturer.

How often should I service my Inboard?

Annually or every 200 Hrs, whichever comes first.

Can you travel to my boat?

Contact our team and we can discuss your vessel location and the type of work that is required.

Do you carry out Pre-Purchase Inspections?

Yes, contact our team to discuss your Pre Purchase Inspection.

Do you carry out boat trailer repairs?

Yes, we can supply parts, light engineering and maintenance repairs along with advice if your trailer requires replacing. Contact our team to discuss your boat trailer repairs or replacement.

Do you sell and maintain electronic equipment?

Yes, we are suppliers of Ray Marine electronic equipment and may be able to help you with repairs or trouble shooting with other brands. Contact our team to discuss the type of electronic equipment your vessel has and the problem that you are having and whether you require an upgrade.

Can you supply engine sound proofing?

Yes, there are several grades that we can supply along with the fixing glue and tape. Contact our team to discuss the type of sound proofing you require, the area size and what you are wanting to achieve.

How do I measure the shaft size on an outboard?


Will I void my Suzuki Warranty if a non-authorised dealership performs the maintenance on my Suzuki outboard?

An authorised Suzuki Marine dealer must complete all of the initial installation, pre-delivery and service inspections. All servicing must be completed as scheduled in the Owner’s Manual and is at the owner’s cost. If the service inspections are completed outside of the authorised Suzuki Marine dealer network, then the warranty terms may be void or reduced to a period of three (3) years from the date of purchase (for recreational use). Please refer to your Service and Warranty Manual for full terms and conditions

What is an offset driveshaft on a Suzuki Outboard?

The Suzuki offset driveshaft positions the power-head forward of the driveshaft, for improved balance and less vibration on the transom. This is a tested and proven design, making for a compact engine and places the axis of inertia, to a point where the vibrations produced are at a minimum.

How do I find my serial number on my Volvo Penta Inboard engine?

The serial number is a unique identifier of your engine and the key to efficient servicing and the correct ordering of parts. It can be found on the type plates and labels, as described below.

The plates are located on the right side of the cylinder block and on top of the valve cover (early and late versions).

A Engine designation
B Specification number
C Serial number
D Engine power at operating speed

How do I find my serial number on my Suzuki Outboard?

The Suzuki Outboard Motor MODEL, PRE-FIX and SERIAL NUMBER are stamped on a plate attached to the clamp bracket. When ordering parts and/or accessories it’s important to properly identify the exact model.

A second engine serial number plate is pressed into a boss on the cylinder block.

How do I find my serial number on my Honda Outboard?

All model names start with “BF” but these two letters do not appear on the engine cover sticker.

The frame serial number is found on or near the stern bracket, stamped into a metal plate. The number uses the form “BXXX-XXXXXXX” and may also be referred to as the product identification number.

If you can’t find the model name or frame serial number, contact us.

What we do


With our experience as qualified marine engineers and as registered dealers of reputable brands; Volvo Penta, Cummins, Suzuki Marine and Honda Marine, we can offer an array of engine options and can match an engine and propulsion system to meet your needs.
We can also co-ordinate and manage your entire engine repower and liaise with your boat builder if this is a requirement for fitment including any electrical work and electronic upgrade.

Marine Parts

We stock a wide range of marine parts with supply across NZ and the Pacific.
For sound advice and product support, contact our team for all your requirements whether it be a full refit of your engine, or any part from A-Z

Marine Services

Pacific Coast Marine provides servicing and repair to all marine systems on all makes and models and can support you with arranging other independent marine service suppliers to carry out additional work.

Can’t find the answer?

Contact us today

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Latest News

Suzuki Flushing Your Outboard

Suzuki Flushing Your Outboard

It’s important to maintain your engine in between services, as well as before and after every outing on the water.
Check out Suzuki’s outboard maintenance reminders to help keep your engine in tip-top condition.

Flushing after use
Flushing your engine as outlined in the owner’s manual is imperative to the longevity of your investment.
Flushing options can vary across the different models.


Please discuss the best option for your outboard with our staff.

Honda on the water

Honda on the water

Once again, Honda Marine will be out in force at the Auckland On The Water Boat Show. This year’s show runs from Thursday, October 3rd to Sunday, October 6th, but in a brand new location!

Team New Zealand has moved into the old venue so the On The Water Boat Show has relocated just over the drawbridge to Te Wero Island right inside Auckland’s Viaduct Harbour.

Honda Marine will be based at stand TW107 on the wharf and there will also be a number of Honda Powered boats on the water located in the Marina at dock M26. You can get on board these vessels for a closer look and there will be opportunities for water tests as well. Honda staff will be on board and on the stand answering your questions to help you to find the right Honda outboard for your boat.

On our stand there will be a select range of outboards from our smallest portable engines right through to our largest and most powerful engine, the redesigned class leading BF250. Come along to our stand and see for yourself the vast amounts of improvements this new Honda outboard engine has. 

During the show you will still have a chance to take advantage of the Honda Marine free rigging kit deal for all engines 115Hp and above. This offer is available for a limited time, so don’t miss out.

Plus, we are also offering free fuel vouchers for all engines purchased 100HP and under. You get $10 of fuel for every horsepower you buy. So if you bought a Honda BF60, you will get a BP Fuel Voucher to the value of $600! This competition runs for all outboards 100HP and under purchased up until October 31st 2019. You can see the full terms and conditions here.

Article from Honda Marine NZ


Suzuki Unveils New Outboard Motors

Suzuki Unveils New Outboard Motors

Suzuki Motor Corporation has unveiled all-new large outboard motors DF175A and DF150A at the Genoa Boat Show which is being held in Genoa, Italy from 20 to 25 September 2018.

DF175A and DF150A have enhanced driving performance and fuel efficiency by adopting advanced technologies such as high compression ratio, lean burn, and semi-direct air intake.

Main features of DF175A and DF150A

Adopted advanced technologies including high compression ratio, Lean Burn Control System, and Semi-Direct Air Intake System to the 2,867cm3four-stroke in-line four-cylinder engine common to DF200A.

Compared to the conventional models, DF175A has enhanced maximum torque by up to 14% and fuel efficiency by 14%, while DF150A has enhanced maximum torque by up to 3.1% and fuel efficiency by 7%.

Suzuki Water Detecting System is installed to protect from engine failure by detecting water mixed in fuel.

User-friendliness is enhanced through various functions such as the Suzuki Easy Start System, which enables the driver to just turn the key once instead of holding it to start the engine, and the Suzuki Troll Mode System, which maintains slow, stable driving.

DF175A and DF150A will be produced at the Kosai Plant in Japan, and will be sold worldwide including North America, Europe and Japan.

Full line-up of Suzuki outboards from DF2.5 to DF350A including new white models of smaller outboards are exhibited at the Genoa Boat Show.

Plus, newly-developed Suzuki Multi-Function Display will be premiered. It comes in a variety of sizes (7, 9, 12 and 16-inch screens) including the 16-inch screen, which is the largest* size offered by the outboard manufacturer.

Suzuki’s aim with this new premium accessory is to provide the ultimate connectivity to unite the boat driver with the surrounding environment.

This is achieved through valuable features such as chart plotter, radar, fish finder and weather information via an internet connection. On top of that, this new screen gives drivers access to all Suzuki engine data, so they can easily and quickly see the performance of the outboard/s in one clear view.

Unlike any other display screens on the market, Suzuki’s new Multi-Function Display can be set up to display just engine data, or a combination of engine and environmental information.

*Based on Suzuki research in September 2018.

Words and photo by Suzuki Motor Corporation

Mystery Machine Volvo Penta Repower

Mystery Machine Volvo Penta Repower

Dive Zone Whitianga’s popular dive vessel, the Mystery Machine needed a repower, here are the results after a complete fit out

Dive Zone Whitianga are a popular Diving Educator and run daily dive trips to the great dive spots right on the Coromandel’s door step including Mercury Islands, Alderman Islands, Cathedral Cove and the Marine Reserve.  This is what they had to say about the the Team here at Pacific Coast Marine & Diesel after the Volva Penta repower:


“We contracted Pacific Coast Marine Whitianga to repower our 12m Dive boat that took 18 Divers with 36 tanks fully loaded. We were running at an average of 12knots using an old Volvo KAD 43 with analogue gauges. This came fitted, running and we used that for a year. We quickly realized we needed more power and reliability as the 43 was a reconditioned unit but the stern leg we did put on brand new.
The complete fit-out took 5 weeks in total and the results have been amazing – it’s like a completely different boat! (In a good way) The team at PC Marine was excellent to work with; keeping us informed with regular progress updates. They were thorough and offered great advice and input throughout.
Now we run at 20knots with 18 Divers and 36 tanks, using about 40 liters an hour with the capability of running faster if needed, we now have the added advantage of increased safety and reliability, improved comfort, reduced environmental impact, better fuel economy, and higher performance.
Thank you PC Marine for transforming our Dive Vessel – The Mystery Machine.”

BEFORE – Old Engine & Drive

Volvo Penta KAMD43P
6-Cylinder Marine Inboard Engine
Manufactured 2000 / Spec 230hp
Volvo Penta DP-D1 Drive 1.78:1 Ratio

AFTER – New Engine & Drive with New Hatch & Dash Panel