Sailors Maintaining Our Own Yanmar 4JH4-TE Diesel | Reassembly Episode 55 #yanmarmaintenance
There is no AAA in the middle of the ocean, so ensuring that our engines are in the best shape possible is a priority. This extended video is a step-by-step reassembly of one of our Yanmar 4JH4-TE marine diesel engines. In this video we clean and service critical components like seals, valves, oil cooler, injectors, and motor mounts. This process will help extend the life of our Yanmar engines, improve fuel efficiency, and ensure reliability.
LInks:
Clamptite: https://clamptitetools.com/?sid=syroam
10% off code: Gerischaffer10
Engine mounts:
Oceanic Innovations: https://oceanicinnovations.store/
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WE'RE GERI AND SHAWN. A couple travelers out chasing the horizon, meeting the people, and capturing it to share with you.
We’ve chosen to Roam the world by boat because, let’s face it, the most interesting path is rarely a straight line.
As we learn to let go of our American drive to finish, and embrace the meandering routes across islands, oceans, continents, and people, we hope to gain a better sense of our world and our place in it.
The path won’t always be comfortable or easy to find but, it will always #roam
Here's an index of the video in case you want to see something specific:
00:00 Teaser clips
00:15 Intro to Sailing Roam
00:31 Intro to reassembly
00:55 Clean up
04:12 Oil cooler and automatic cold start device (ACSD)
06:29 Remove bonnet (valve cover)
06:49 Remove front main seal
08:28 Valve adjustment
09:37 Wiring harness
11:10 Dipstick
11:38 Motor Mount
13:04 Oil cooler
13:22 Inlet hose
13:51 Steering cable bracket
14:38 Vacuum booster hose
15:12 Water pump
17:14 Bonnet
20:02 Valve seals
20:31 Water circulating pump
21:29 Thermostat
23:25 Front main seal
25:55 Crank pulley
26:32 Heat exchanger/turbo
27:34 Mostly little things left
29:49 Chase the threads
30:26 Connect turbo to intake manifold
31:30 Clamptite
33:06 Mixing elbow
34:40 Air Cleaner
35:50 Motor mounts
37:12 Remove flywheel and vibration dampener/clean
38:46 Rear main seal
40:22 Replace flywheel/vibration dampener/fan
40:58 Wrap up
41:07 Like, Subscribe, See you next time
41:28 End card
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#Yanmar #MarineDiesel #BoatMaintenance #DieselEngine #YanmarEngine #MarineRepair #BoatLife #liveaboardlife #cruisinglife
© Sailing Roam 2025
Sailing Roam
👋 Hi, we’re Geri 👩🏻⚕️(a retired nurse) and Shawn 🤓 (a not retired technologist). We’ve gone on the greatest adventure of our lives instead of living the comfortable and predictable suburban world we left behind. Living aboard Roam, our cruising catamaran, we explore and immerse ourselves in new cultures, do boat repairs in exotic places, and get up to all kinds of shenanigans. Roam isn’t just the name of our boat, it’s kind of a philosophy. We’re not taking the shortest routes or using a formula to sail around the world. We’re not in a hurry either. We’re meeting the people, seeing the places and getting distracted by things we find interesting along the way. We’re unconventional and we’re living the best life we can imagine! Join us as we turn our 11-year old catamaran into our perfect adventure platform and see what’s over the next horizon. We can’t wait to meet you wherever you are! Clamptite Tools link: https://clamptitetools.com/?sld=syroam 10% discount: gerischaffer10
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Sailors Maintaining Our Own Yanmar 4JH4-TE Diesel | Reassembly Episode 55 #yanmarmaintenance Location
- Mathews (37.437006,-76.3206618)
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