Will It Start? Seized Yanmar Diesel Boat Engine

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Locked up Yanmar 3-GMD diesel sailboat engine. What's inside? Can it be saved & made to run?
The engine is a early/mid 1980's model and had only around 30 hours on it when it was abandoned about 20 years ago.
The GMD series engines are sea water cooled, meaning this engine has sat with saltwater in the system, possibly corroding through the exhaust elbow and ending up in the cylinders.
There is a waterline about 3/4 of the way up the engine and both the crankcase and gearbox had water in them when I began work on the engine.

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27 июн 2024

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Комментарии : 79

@martin5504 3 года назад

Strong old Yanmar.

@FixAndForget 3 года назад

Certainly is! I was very surprised how this turned out. Thanks for watching!

@mikus4242 3 года назад

From the first look of it, I didn’t think it would start. Mustie1 would be proud of you!

@FixAndForget 3 года назад

I really thought it was junk too. I've never seen one lock up from something other than corrosion in the cylinders or bottom end. Maybe next time I'll use a tripod and get a little closer to Mustie1 professionalism. Thanks for watching and the kind words!

@lesmurray1732 2 года назад

Just about to buy a new Yanmar. This video gives me loads of confidence

@FixAndForget 2 года назад

Glad to hear & thanks for watching!

@hellohellohello6847 3 года назад

Sweet mate!! Well done just gunna watch part 2

@FixAndForget 3 года назад

Thanks for watching and the kind words!

@skippyone2769 2 года назад

Looks like that engine had been underwater a long time! Good job getting it running again!

@FixAndForget 2 года назад

Thanks for watching and the kind words!

@craigbasoco4886 2 года назад

I would like to put one of those engine in my Gulf cart Good work getting done.

@FixAndForget 2 года назад

Hi Craig, thanks for watching! Here is a link to part 2 of this engine. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html Funny you should mention the golf cart. I've always thought of building a diesel go-cart with a much lighter engine like an air cooler Hatz, Deutz or an aluminum block Yanmar or Kubota. Cheers!

@zhangminhuang5459 2 года назад

This is impressive. Gives me hope for the one I in the boat I just bought.

@FixAndForget 2 года назад

Thanks for watching! This isn't the first Yanmar I've brought back. I think you'll be ok. Let me know how it goes! Cheers

@defblogru 3 года назад

Unbelievable! 😀 Great work! :)

@FixAndForget 3 года назад

@defblog Thanks for watching and the kind words!! If you haven't already, check out part 2 here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html

@ericshayer 3 года назад

It is incredible for a raw water engine. Most impressive is the fuel (high pressure) pump is still working.

@FixAndForget 3 года назад

Hi Eric, thanks for watching! I agree I did not expect the injector pump to work it was a big surprise. I think the super heavy casting and many zinc annodes likely saved the block. If you haven't seen part 2 for this engine here is the link ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html

@JohnSchneidersWildLife 4 месяца назад

That old motor still has great compression!

@FixAndForget 4 месяца назад

Sure does! Not sure I put it in the video but turns out it only has 500 original hours. I just cranked it up again a few weeks ago, runs like new. Thanks for watching!

@frednedgold4636 Год назад

looks like fun must made you happy to see it come to life good job

@FixAndForget Год назад

Thank you! If you haven't seen part 2, check it out!

@brucepooley3623 3 года назад

Old engines love a little TLC!

@FixAndForget 3 года назад

They certainly do. And in this case it went a long ways! Thanks for watching!

@SaschaSupertramp 3 года назад

Just awsome!

@FixAndForget 3 года назад

Thanks for watching and the kind words! If you haven't already, check out part 2 here! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html

@sailingyoumeandjosapea6770 2 года назад

Sounds sweet

@FixAndForget 2 года назад

Thanks man

@ultramagaviking1966 Год назад

can't believe how massive that flywheel is for that 3cyl

@FixAndForget Год назад

Good deal of weight too. I think it helps keep it balanced since there isn't a countershaft.

@Bilgediver Год назад

Be like new once finished. Happy sailing.

@FixAndForget Год назад

Check out part part 2 below. Thanks for watching and the kind words!! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html

@danknox9986 2 года назад

Amazing. I would have just tossed it. Well done.

@FixAndForget 2 года назад

Thanks for watching and the kind words! I was thinking it was going to the scrap yard too. Never thought it would turn out as well as it did.

@engineslovetostartmatthew 3 года назад

Sweet

@FixAndForget 3 года назад

Thanks for watching! Cool name

@georgeseal4770 3 года назад

Asher You just can't get away from old engines George S from the Stewart

@FixAndForget 3 года назад

Thanks George! Great to hear from you. One of these days I'll make it back to the Stewart and make some more videos of the old Cleveland.

@georgeseal4770 3 года назад

@@FixAndForget I saw Georgia tags on the bike and Navy jet over head I live just out side Atlanta

@SHOINOFF 2 года назад

That looks like the sail boat that was posted on craigslist for free a few months ago.

@FixAndForget 2 года назад

It sold for $1,000 a few years back if you can believe that. Thanks for watching

@annieshappymedium74 2 года назад

😱😱😱 Amazing! Are you for hire! I have a Yanmar 2GM20F 18HP on a 1979 Hunter Cherubini which I just bought and well engine won’t start 🤦🏻‍♀️ Your video definitely gives me hope, but I don’t know where to start? It has 1000 hrs! I am in Florida 👌🏻☺️

@FixAndForget 2 года назад

Thanks for watching and the kind words! What part of FL? I likely won't be around to assist but know people who can. If you haven't already, check out part 2 for more inspiration! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html Good luck on your boat!!

@annieshappymedium74 2 года назад

I totally watched the second video! I was absolutely floored! Definitely gives me hope and the sailboat is in Clearwater Beach, Florida! If you have any diesel mechanic recommendations or anyone willing to be a mentor I would greatly appreciate it! I do want to learn this engine and be able to maintain it! 🙏🏻☺️

@Gaiapozder Год назад

Japanese never fails As long there is a bit of compression oil and air and mate that turns forever

@FixAndForget Год назад

These thick walled iron blocks certainly are tough. Thanks for watching!

@ultramagaviking1966 Год назад

florida steel toes... I have the same flip flops work boots!

@FixAndForget Год назад

Haha yes can't help it when at home! Thanks for watching!

@johnlindsay6466 2 года назад

Very Impressive. Have a Yanmar SB8 that has lost compression. Can you repair it?

@FixAndForget 2 года назад

Thanks for watching! The reason for the failure would determine if the engine could be repaired. For example, If the rings are bad, yes it could be repaired. However, if the block is cracked it could not reasonably be fixed. Either way the engine will need to be disassembled. If your engine is equipped with a compression relief system be sure to check that and your valve lash first. Cheers!

@refittingreverie7992 3 года назад

Did you have corrosion in your cylinders? My Yanmar had water in one cylinder that caused some pitting

@FixAndForget 3 года назад

Yes there was minor corrosion but it didn't end up being more than surface rust and thankfully very little pitting. Check out part 2 here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html Thanks for watching!

@MuhammadBordbar-kb4xg 10 дней назад

Where are you located and do you do service? I have a seized 2010 yanmar engine with only 700 hours on it. Do you think it’s just rust in pistons or injectors? Thanks

@FixAndForget 10 дней назад

South Florida. Could be anything man. Did it seize while running? Did it get water in it?

@paulstoker8346 3 года назад

Should the water go into the exhaust on the down side after the bend ?

@FixAndForget 3 года назад

Thanks for watching! Yes, that bend is a mixing elbow. The cooling water is injected there after it has flowed through the engine water jacket. This cools the exhaust gas so rubber flexible hose can be used to carry it through an "aqualift" silencer and eventually overboard.

@justinrobertson1590 3 года назад

Good job. What are your intentions with it?

@FixAndForget 3 года назад

Thanks for watching! The engine is for sale.

@justinrobertson1590 3 года назад

@@FixAndForget just curious, how much woulda you ask for that?

@FixAndForget 3 года назад

It will be around 3k. After the video was taken I tore the engine back apart and did a lot more work to it including a few new coats of Yanmar grey.

@waydegod 2 года назад

Yanmar nts70r isn't turning over believed to be locked up, was sitting for a year, how could get it running

@FixAndForget 2 года назад

Thanks for watching! You need to find out what made the engine lock up. Make sure it isn't the transmission or anything attached to the engine. Check the oil for water. Remove the injectors and put oil in the cylinders. Use a strap wrench or other tool to try and turn the engine back and forth to free it up. Hope this helps, good luck!

@levihercules8867 3 года назад

i have an engine that starts up but does not drives/ no power.. how do i fix?

@FixAndForget 3 года назад

Hi Levi. Thanks for watching! What type of engine are you working on? Let me know of any other symptoms like smoke/overheating ect. I'll be glad to help.

@liveeventtest978 2 года назад

Oh Gurus of diesel engines please help!! I just bought a sailboat with a yanmar 3 cylinder engine. The idiot left an injector out and now I believe is what has caused the engine to seize. Any advise before I have to hire a mechanic.

@FixAndForget 2 года назад

Fill the cylinder with your favorite brand of penetrating oil, diesel, or ATF and let it soak. Every few days try turning the engine by hand back and forth. Good luck!!

@paulstoker8346 3 года назад

Or is it a purpose joining manifold ?

@FixAndForget 3 года назад

Mixing wet elbow.

@ahmetcanl3123 2 года назад

yanmar a güven.

@FixAndForget 2 года назад

Thanks for watching!

@barrellcooper6490 3 года назад

Narration would have helped. I have a neglected engine trying to decide how much effort to put into it, or just bite the bullet and replaceme it. Some explanation of what's going on would help. Just stating the basics wood have added to my knowledge. Seeing stuff done without context leads me to have to guess what and why you are doing things. If education was your goal this would be a big improvement.

@FixAndForget 3 года назад

Thanks for watching! I have always thought about adding narration but figured the videos would be too long. I am also a sailor and not a RU-vid personality, honestly I doubt my abilities to narrate well. I plan on doing a video with narration one day and I appreciate your input!

@jukeboxhero1649 3 года назад

I like your work but at 12:30-40 you look kinda jittery. Better just have 1 cup of coffee, Asher. I have the same addiction so I can empathize.

@FixAndForget 3 года назад

Haha you're right I was hard on the Cuban Coladas that day. Doing better although not kicking the addiction any time soon! Thanks for watching!

@avancalledrupert5130 3 года назад

If the boat I buy dousnt have a yanmar I will pull it and sell it. I've lurned the hard way racing all kinds of cars. Any engine that isn't Japanese will fail you . Never had a Honda , Toyota or Nisan fail not once . Everything else it's not if it will fail but when. It's usually sooner than later.

@FixAndForget 3 года назад

Thanks for watching! I can't say I've had the same luck with big industrial engines but for small diesels like this, Yanmar, Kubota, ect are the way to go!

@FixAndForget 3 года назад

Also, if you haven't already check out part 2! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUD06QmQKkY.html

@avancalledrupert5130 3 года назад

@@FixAndForget I used to do groundworks before I was a carpenter. I'm British I should be all JCB . But no they are shit . Kabota Hitachi all the way . I reckon 4 out 5 diggers in Britain are Hitachi at this point . I just wouldn't feel safe at sea without a Japanese power plant . I know everyone's experience won't be the same . But I'd be fool to ignore my own .

@FixAndForget 3 года назад

@@avancalledrupert5130 Absolutely agree. The Hitachi, Kubota, Komatsu & Takeuchi machines are taking over here in the US. My experience is in the marine industry where EMD engines reign supreme but the massive popularity of Japanese construction equipment can't be denied!