Marine Diesel Engines, Part 1 – Overview of the Raw Water System

You can check out all of the videos available in our Marine Engines category.

Understanding the raw water cooling system of your boat's diesel engine will help you keep her running cool.

Keeping your marine diesel engine running cool is explained here: From the raw water inlet through the seacock, the strainer, and the heat exchanger and then out the wet exhaust, water from outside the boat circulates to keep the engine coolant cool.

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[allthingsconsdrble]

Showing all the components from inlet to outlet and ways in between was absolutely clutch. 10/10. Thank you.

[RandomNooby]

educational value 10 out of 10, nice and easy for a novice like me, but covered a lot of depth: dress code 9 out of 10.

[djatoshue]

Very very informative. Well explained, well detailed. Thanks for sharing knowledge

[sullybiker]

I haven't been near a marine diesel in 30 years and I absolutely loved this.

[onazram]

Thank you very much, as a car/truck mechanic learning boat power systems this has been invaluable information....

[andrewevans]

An excellent overview of the exhaust system. Very detailed and well demonstrated, thank you!

[velianlodestone]

The thing that keeps me up at night is not hearing that dreaded alarm go off, but the knowledge I inherited a boat without any such alarm!

[jeremiah]

I'd like to thank you for saving me a great deal of time and money. I used to think that learning how to sail would be fun. However, after watching this video, the wind has been officially taken out of my sails.

[matthewsilva]

This is the best video on Diesel engines I have seen so far. It completely demystifies the water flow through the system. Thanks!!

[FirstMateEmily]

Great explanation, loved the tidbit about “wear what your wife tells you” even if you’re about to work on a diesel engine 😂🫡

[rob]

AWESOME EXPLANATION!!!! CLEAR AND FRIENDLY !!!

[ivosaric]

An excellent video for everyone who is interested in small boat engines.

[berlymahn]

Very much appreciate this video. Tracking all. TY.

[HarryStucklermendotcom]

Wow. thanks a lot for that from Thailand.

[bkdo]

Hello sir, I use a weichai WD10c 278bhp diesel engine.one of the injectors got water in head.What is the problem?

[ml]

Very infomative, thank you! But was it a bronze plug or a brass plug? I guess it doesn´t matter, if you have the zinkanode?

[larrycarpenter]

Great stuff. Videos like this are worth their weight in gold!!

[emshoogs]

I'm currently doing my coxswain and can not thank you enough! Have just jumped online to watch the other 9 videos. Very well done, thankyou!

[harbourdogNL]

1:28 HA!! Hey buddy, I'm married to her too! Seriously though, very informative, thank you.

[elefja]

Great video, helped a lot on my engine understanding on my sailboat purchase. I'm waiting for part two now!