Engineering guru Vyv Cox confesses to a less-than impressive track record of winterizing boat batteries – but shares his new-found solution
Practical
Swinging mooring setup: What I learned from trying a cheaper mooring option
After almost two decades of being marina berthed and concerned with the ever-increasing mooring fees, myself, and my partner, Brian, decided to look for an alternative, cheaper swinging mooring on…
How to service a marine diesel engine in 12 simple steps
It was time to service the marine diesel engine on our Maxi 84 cruiser. Knowing how to diagnose and fix engine faults is a useful skill for any boat owner,…
How Perkins marine engines became world-famous
The Volvo Penta engine on our Maxi 84 Maximus is a re-badged version of the Perkins 103-06, itself originally imported from a Japanese company called Ishikawajima Shibaura Machinery. Perkins marketed…
How an intercooled engine works
With an inter-cooled engine, the role of the seawater is to take away the heat from the freshwater. The seawater, or ‘raw water’, is a separate flow to the fresh…
How to clean a carburettor: Our expert’s view on ultrasonic cleaners
Paul Carey writes: “In recent issues of Practical Boat Owner there has been some discussion on the problems of stale petrol clogging up or leading to poor performance of outboard…
Does impeller orientation really matter? Ask the experts
Chris Mardon writes: “I was always told that when replacing the impeller on my diesel engine raw water pump I should make sure the blades were folded in the swept…
Propeller antifoul: Our expert’s top tips for sticking paint to a prop
Andy Peach writes: “What’s the best preparation and antifouling paint to use on a propeller and P-bracket? “I’d heard that lanolin was worth a try but when I lifted the…
Inflatable boat repair and reconstruction: How to save your dinghy from the tip
The ‘service life’ of the adhesive used to attach floors and transoms to the tube collars of most small inflatable boats is generally agreed in the industry to be 10-15…
DIY lithium battery: 2 years on, my homemade setup has passed test of time
All our energy needs, for two of us, living full-time aboard Cushla for the past two years have been met by the lithium battery bank I assembled from individual lithium…
Smoking boat engine? Our expert explains what could be wrong
Gunter Bock from Norway writes: “I read in PBO’s November 2021 issue about exhaust elbow problems. You recommended replacing the reader’s damaged iron elbow with a new one in stainless…
Is it worth re-activating copper antifoul? Ask the experts
Brian Williams writes: “I read with great interest the article on different antifouling treatments in the May 2021 edition of PBO. “Based at Suffolk Yacht Harbour I had Coppercoat professionally…
Passing planning for a shakedown voyage
With Maximus, our PBO Project boat ready for her shakedown voyage from Chichester to Poole, I turned my attention to passage planning. I dug out my old logbook and realised…
New electronics on the PBO Project Boat
The day was approaching for Maximus’s shakedown cruise, a two-day voyage from Chichester to her new home at Cobbs Quay Marina, Poole. Before then, however, we needed to understand our…
Launching the PBO Project Boat
Chichester’s Dell Quay boatyard had been Maximus’s home for two years – and felt like our second home too, since we’d acquired the Maxi 84 project boat. We’d spent long…
Upgrading electronics on the PBO Project Boat
Upgrading electronics on Maximus seemed like a huge leap in the first weeks of ownership. We were still discovering new leaks and lockers, choosing antifouling and scraping the bottom. I…
What is an in-hull transducer?
On our PBO Project Boat Maximus we need sonar simply for measuring depth, but the advanced electronics of fish finders and forward-looking sonar can show shoals of fish and give…
What is NMEA 2000, SeaTalk 2, STng, Simnet and other systems?
NMEA 2000 uses the CAN (control area network) designed originally for the automotive market, but adapted for the marine industry. The older version, NMEA 0183, allowed a GPS or chartplotter…
Joining chain links: Our expert explains the safest way to extend your anchor chain
Rod Stuart writes: “What is the safest way to join two equal galvanised chain links (I don’t just mean for going through the windlass)? A fat shackle or one of…
What is an undefaced ensign? And why does it matter? Ask the experts
Tjalling Halbertsma from Bergen, North Holland writes: “I sail a 28ft flat-bottomed Vollenhovense Bol, built in steel and a fine ship for the Waddenzee in the Netherlands with a draught…