The red diesel in the bowl of my primary filter looks cloudy and has a more orange colour than normal. There is no sign of water in the bowl. I…
engines
The step by step guide to dismantling a PRM 100 marine gearbox
As a boat owner practical enough to cope with most maintenance I still had to think twice before delving into the guts of my gearbox. One imagines the need of…
Seized outboard engine – how to bring a Mariner 2hp back to life
The trouble began when I bought a rowing dinghy to use as a tender instead of a borrowed sailing club dinghy. Our trusty 1980s vintage Mariner 2hp outboard engine hadn’t…
Make your own impeller extractor – two DIY ideas that save money
John Cowan modified an automotive tool for his boat I had a problem removing my seawater impeller recently – the essential, delicate, flexible plastic paddlewheel that draws seawater up into…
Outboard maintenance tips – step by step 4-stroke guide
Wind, weather and the elements are the usual culprits when it comes to boat maintenance, however the 4-stroke outboard engine is best tended to from the inside out. Changing the…
How to clean an outboard motor carburettor step-by-step
If you have trouble with a small outboard motor it can often be attributed to the fuel. David Parker describes how he saved a lot of money with a careful…
Refurbishing a Yanmar 1GM10 water pump
The Yanmar 1GM10 is a great little engine, which starts first time and runs reliably: but there are one or two design flaws. The worst is that the raw water…
DIY engine cooling water alarm
DIY engine cooling water alarm
How to service a 2-stroke outboard engine
After a long winter indoors many 2-stroke outboards are reluctant to start. A simple service should make yours more reliable. Here Steve Dawkins of Bursledon Outboards shows PBO’s Ben Meakins…
Mend your own engine sea water pump
Peter Lyle refurbishes the seawater pump on his Jeanneau 36i for a fraction of the cost of replacement or professional repair
Make an outboard motor overheat alarm from a digital thermometer
The outboard on my Hunter Liberty is located in a well in the cockpit from where it is difficult to see the cooling water tell-tale. On my first trip this…