Save $$$ Servicing Your Own 15HP Mercury Outboard (4-Stroke) Episode 494
In this episode we walk through a full service on our 15HP Mercury 4-stroke outboard — the little workhorse that gets us to shore, hauls dinghy loads, and has to keep running when we're a long way from the nearest mechanic. If you own this engine (or any small 4-stroke outboard), this is the maintenance you can absolutely do yourself.
We cover changing the engine oil, the gearbox/lower unit oil, the spark plug, fuel filter, and the bits people forget — plus the tools you'll need and a few mistakes to avoid. Doing your own outboard service saves a small fortune and means you actually know your engine when something goes wrong offshore.
⏱️ CHAPTERS
00:00 Intro
[01:17] Tools & oil you'll need
[04:18] Changing the gearbox / lower unit oil
[09:00] Changing an impeller
[15:32] Draining the engine oil
[17:20] fuel filter
[19:59] Refill the oil
[21:48] Spark plugs
[23:57] installing a hour meter
🛠️ GEAR & OILS WE USED
Engine oil – https://westmarine.sjv.io/n4o7Ma
Gear box oil - https://westmarine.sjv.io/GbGvM6
oil filter – https://westmarine.sjv.io/n4o7Ma
Impeller - https://westmarine.sjv.io/DWn2vG
Grease - https://westmarinecreator.pxf.io/ZVBZaW
Spark plugs - https://westmarine.sjv.io/R0mkMy
You can find all the gear and more here https://westmarine.sjv.io/c/5947521/3373502/
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We're about to cross from Panama to French Polynesia — roughly 4,000nm across the Pacific. Come along: https://crossing.sailingcatalpa.com
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Sailing Catalpa
We are a family of 4 that packed up our life on the Gold Coast in Australia, Sold everything to live our dream and sail the world in 2016. We may not have much in the way of the things but we are living now sailing full time in South East Asia. Follow us as we document our adventures good times and bad and what it’s like for a family living on a sailing boat. We hope that our weekly videos make you smile and inspire you to live your wildest dreams. Facebook https://www.facebook.com/sailingcatalpa/ Instagram https://www.instagram.com/sailingcatalpa/ Website https://www.sailingcatalpa.com Our Channel is supported by our Patrons you can Check out our Patreon Page to see more and become a patron. https://www.patreon.com/sailingcatalpa The Catalpa Crew
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