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Technical Talk

Preparation for the new season

After experiencing the very cold snap this winter, it will be necessary to pay extra attention to your boat, in particular the engine when preparing for the new season.

Firstly check the water level in the header tank.  It should be 3/4 inch from the top.  If it isn't, replenish ...

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Winter Maintenance

It's the ideal time of year, with the London Boat Show upon us, to think about winter maintenance and servicing.  Correct preparation will ensure a successful boating season, and involves several different areas:-

Hull Condition
If your boat is out of the water, it is an ideal to check ...

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The Principles behind the Insert Generator

With today's demands for onboard electrical power, both DC and AC becoming more popular, Nanni Diesel has developed an innovative new concept to add to it's already comprehensive range of marine engines.  The technology behind the Insert Generator ...

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Winterisation of Inboard Engines

It's that time of year again when the nights are drawing in and the temperature is cooling off and it is time to start thinking about preparing your boat for storage during the winter months.

'Winterising' an engine is a key maintenance task for any boat owner.  Failure to do so ...

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Monitoring The Engine Oil Pressure

The circulation of the lubricating oil around the engine has quite rightly been likened to the human blood circulation system.  The oil is pumped from the sump through the filter and into the bore holes leading to the main bearings on the crankshaft.  After leaving these main bearings, the oil flow is divided.  ...

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Dealing with Engine Temperature Problems...

Temperature Gauge Problems
Initially it is important to establish whether you have an overheating problem or a temperature gauge fault.  If you suspect a problem then it is a good idea to check the gauge against a thermometer that is known to be accurate.  The majority of marine thermostats open ...

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Boat Fuel Efficiency

If you haven’t done before, now is an ideal time to start thinking about your boat fuel efficiency.  Not only because of the current economic climate and rising fuel prices but also because it can go a small way into helping ...

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Understanding your Bow Thruster in the Inland Waterway Market

Tunnel systems provide a simple cost-effective solution and can be installed at two thirds their diameter below water level.  To achieve optimum performance and reduce the risk of damage from surface debris, an immersion depth of one complete tunnel diameter is advised.  The longer your tunnel, the ...

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Pre-Season Preparation

With Spring just around the corner, its time to start preparing your boat ready for the season.  Whether your boat has been winterised or stored throughout the winter months, there are a few things that you should ensure you do prior to using the boat once again.

The Top Tips for Preparing ...

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The Theory Behind Common Rail Engines

Nanni Diesel now offers three new marine engines, 165, 180 & 200hp, based on common rail Toyota blocks from their rugged 4x4 automotive sector.

The common rail system used high-pressurised fuel for improved fuel economy and provides robust engine power, while reducing noise and vibration.

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Pump Flow Rates & Pressures

Liquid flow rate and pressure are the basic measures of pump performance.  Flow rate is commonly measured in litres per second, per minute or per hour  or sometimes in cubic metres per hourPressure is commonly ...

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Why Waste Engine Heat? You've paid for it!

Turn your engine's waste heat into useful domestic hot water with a C-Warm Calorifier.  Made in the UK and fitted as standard by leading UK and European boat builders, C-Warm heaters are designed for use at system pressure up to 3 bar (44 psi).  Maximum ...

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Choosing the right battery...

With the introduction of higher output alternators and electronic  charge Xsplitters charging systems on boats have vastly improved.  To benefit fully from a decrease in recharge time and longer runtime the correct battery choice should be made.  When making a battery purchase you need to consider - Battery life ...

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Why fit an Aquadrive?

Marine engines traditionally have been coupled directly to the propeller drive shaft, perhaps with a stiff flexible coupling between the two.  Most of the vibration is sent straight down the shaft, and the engine mounts can't so their job properly because they are strained forwards by propeller thrust.  So, vibration gets into the hull, ...

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Battery Chargers/Charging Converters - always a full battery

Starter batteries and supply batteries are designed for different tasks.  Starter batteries, in order to start the engine, must initially supply a high current level and will then serve as an energy buffer with smaller partial cycles.  Supply or domestic batteries, by contrast, are charged at lower current levels for ...

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The Sea Strainer Alarm System

Alarms instantly if the Sea Strainer blocks.....

Why?
Marine engines are cooled by raw sea water, drawn in through the bottom of the hull and pumped through the heat exchanger.  Block this vital supply and problems follow immediately.  The water pump impeller fails ...

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Deep Sea Seals

The ManeCraft seal comprises of two main components.  The stationary seal assembly and the rotating seal assembly, both moulded from tough, oil resistant chloroprene.  The stationary seat has a solid bronze ring bonded into it and is clamped onto the stern tube with two stainless clips, ...

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Kabola Diesel Powered Combination Boilers

Instant hot water and a powerful heating solution  - Home comforts onboard a becoming now becoming expected features today  - whether hiring, living aboard or buying a new boat customers are looking for raised standards.

Having to run your engine for half an hour before ...

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