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- เผยแพร่เมื่อ 25 ส.ค. 2024
- An important annual service check on a diesel engine is to check the drive belt and bearing condition on all engine-driven accessories, including the alternator and coolant pump. This video steps through this simple service check on the John Deere 6068AFM75 installed on our Nordhavn 52 Dirona. The engine is a 266 hp, M2-rated marine diesel that is just over 10 years old and is approaching 11,000 hours.
You can read more about our travels at mvdirona.com, including a live map with our current location.
Per usual, the fastest, most informative half hour on You Tube.
There's a motivating comment. Thanks!
I really enjoy the “How to” videos
Thanks for the feedback on the videos.
Wish my Tundra was that easy to service. Yes. It is taking me two days to get through this video. They cancelled school house learning for the rest of the school year and I'm changing my name from Papa! Papa! Papa! to an undisclosed proper noun.
Yes, it's an unusual time. A very different lifestyle for most of us. Your right, the access to the mechanical components on our diesel is excellent when compared to most passenger cars and trucks. And about 100x better than our previous boat.
I recently found your TH-cam Chanel and am really enjoying your videos. I admire your ability, attention to detail and your preparedness!
Thanks for the video feedback.
@@MVDirona Let me know if you ever come to Kobe Japan. I'd like to say "Hi"
I have flown through Osaka in the past so been near but never actually been to Kobe itself. It would be fun to visit by boat. Thanks for the invitation.
the more i research after seeing your beautiful boat the more i love.
We're pretty biased by, after a decade, we still love the boat and what it can do.
Great video. Your uploads are always appreciated! Like you I love those 18v Milwaukee tools.
Yeah, the Milwaukee's are great. Our fleet of tools seem to grow but 1 or 2 each year :-).
Thanks, living vicariously through your videos since doing this is far out of my reach.
It was out of reach in our early days as well. You never know how things will evolve. If you are wiling to make some sacrifices, much is possible. In our case, we sold our house to free up resources for the boat trip. For many people, that would be unthinkable but, for us, the experience of seeing the world by boat has been more valuable than continuing to own a house in Seattle.
@@MVDirona I am afraid that chance has left long ago and now I have left only to barely survive for the rest of my days.
With the smart upgrades and maintenance you’ve done on your boat at what ever time and point you decide to sell her someone is going to get a real gem.
The boat is operating well and easy to take care of the way it's currently configured. Thanks for the feedback.
Great explanation and demonstration. Thank you for the video.
Thanks for the feedback.
Another fantastic video. Really enjoy your maintenance videos. A clearly talented engineer with such a good ability to explain/teach. Keep them coming!! I see you’re in Scotland, any plans to come to Bangor Northern Ireland?
Thanks for the feedback on the video. Bangor Northern Ireland sounds like a good suggestion. We've not yet been there but we did spend several days in nearby Belfast and really enjoyed it: mvdirona.com/2018/01/beautiful-belfast/.
I really enjoy these maintenance videos. Thanks for sharing.
We appreciate the feedback.
Good Job! Great To be Organized. Glad to see Y'all in Scotland, the Land Of My Ancestors. Far Winds And Following Seas, as they say The Tyranny of Distance Is No Challenge To The Cavalier! Thanks For Sharing Your Continued adventures...Cheers
The land of my ancestors as well! Thanks for the feedback on the video.
Great advice, we have direct water cooling and have had bearings go on two summer trips. This is now on my pre-season maintenance schedule.
Yes, it can happen and it will temporarily disable an engine and, in some cases, can cause major damage. Well worth checking in my opinion.
Excellent, thanks for sharing
Thanks for watching!
interesting video and conversation
Thanks for the feedback.
Thanks for sharing!
Another great vídeo. Congrats from Brazil.
Thanks for the feedback on the video.
Excellent video, thank you, love your videos. Regards from Argentina.
Thanks from Scotland.
Another great video. You guys explain stuff so well! Love your videos!
Sending you strength to stay safe! Crazy times here in US! And in the world!👊👊👊👊again stay safe. Looking forward to the next video!
Thanks for the note. We're safe and practicing isolation in a nice remote area of Scotland.
Good and in-depth explanation of the task. Our goal is to do the same. Sell off everything and hit the sea. I may not globetrot as I love the Gulf and the Caribbean... But still liquid freedom. I look forward to your next update and maybe we will see you on the water! Best wishes!
Liquid freedom. That's a great term. Good luck on your plan.
Thank you, excellent demonstration. Easy and fool proof step by step tutorial, enjoyed it. Keep safe and happy cruising
Thanks.
I hope that you both take care in times like this,and say hello to Mr.Spitfire, I could hear him at the beginning of this very interesting video :) :) :)
You're right that is Spitfire trying to get into the video at the start.
Stay well! Cheers!
Thanks!
All in very good shape, but then again no surprise with quite a skillfull and carefull boat owner !
Nice vid.
carefull is meant as a care taking owner !
Thanks for the feedback Fred. I'm glad Jennifer reminded me before starting this job that it might be worth running the video camera.
@@MVDirona I noticed that the new belt originates from 2010. A possible hidden problem ( not seen by the naked eye) can be that some components of the belt are hardened and in that way weakening the belt. It was wise to keep the belt in a dark and dry storage so that the hardening process is slowed down. Keeping time of the old belt as a additional spare, can be extended if your powder the belt with talcum powder ( rubbing in smoothly) and before re-use remove the powder (with just with water wet cloth).
Good advice. Our belt has spent 10 years in a sealed back under the master stateroom bed so it has seen no light but it has spent 10 years in storage. We store things carefully to avoid damage but it has been in storage for 10 years.
Thank you
Wonderful video. I can't believe you don't have 100k subs
Thanks for the feedback on the channel Dale.
Your content communication is very concise and constructive in building my understanding. I appreciate tying your operational parameters to your use case and risk mitigation priorities. I also appreciate the cleanliness, conscious organization, and quick access capability to where you’ve stowed inventory. Could each of you share the most beloved comfort your ship gives to you? What warms your heart about her everyday?
For me, the best property of the boat is freedom. It can go anywhere in the world. I just love the capability to chose a destination and be able to get there on our own. For Jennifer, the most valued characteristic of the boat is its flexibility. It's equally comfortable as an apartment in downtown London, exploring Fiordland in New Zealand, or crossing an ocean. It's capable, strong, and comfortable.
hello from scotland, out of interest i checked your website to see where you were and to my surprise i find you not far from me. I stay on the south west coast of ayrshire just outside AYR. have been watching your videos for a while now and enjoy them very much. hope you both are safe.
Cool. Ayr is very close to where we are. We did spend a month or so in the Glasgow area not far north of you and really enjoyed it.
We're doing well. Out of respect of the lockdown it's been more than 4 weeks since we did a grocery shop and it's been almost that long since we have been on land. We will eventually have to have to re-provision but aren't yet in a rush to do anything. We'll probably give it another couple of weeks yet.
All the best!
"Can we fix it? Yes, we can!" - Bob The Builder
Exactly! In fact, we are currently in the UK, the home of the famous fix it expert "Bob The Builder."
U engine bay Verrrryyy Clean................
Thanks.
Hiya, you sir are a great teacher, you impart knowledge easily but without hyperbol. I never could spell, word blindness. I love the relaxed delivery. Did you keep the belt you took off as another spare? I would hate to not have a spare when needed, even a used one. Two sizes of hex head on five bolts? Anoying to have to keep changing the spanner, or wrench. Thank you, take care & stay safe...
Yes, we did keep the old belt and won't discard it until we have a new spare belt in stock on the boat. Thanks for the feedback on the video.
Ill use your bearing spin test; going to check car's squeaky alternator.
The belt is 12 mos. new.
2008 Buick lacrosse
Sounds good. In the vast majority of cases, bearing fail slowly and are detectable both by sound and by feel. In fact, in some very high value applications like jet turbines and some large ship propellers, they use audible and/or vibration sensors to get more warning.
Great video, now do you have a log where you document this action and deduct the belt from an inventory?
Good question. Yes, we do have a maintenance log where I log all changes and additions to boat systems and all maintenance work done. We have an Excel spreadsheet that tracks all maintenance and highlights in red work items that are over due and in yellow that nearly due: mvdirona.com/2018/11/updating-the-maintenance-log/.
We're working on a new version of the Maintenance Log spreadsheet that is written as a web application on a database. It's does what the spreadsheet does but also tracks all work done, can report on it, and sends a morning email with any work that is nearly due. We'll show that program in our next video.
@@MVDirona we have really enjoyed tracking your journey. Truly amazing.
I am a firm believer in changing idlers and the tensioner pulley when I change belts. It is a small cost and gives peace of mind. On my cummins boat motor I always changed the alternators and water pump at about eight thousand hours. I would keep spare rebuilt alternators and water pump along with belts, tensioners and idlers along with new and used belts. Does your wing motor have twin Alternators? I like the engine room layout it gives lots of space. A lot of other boat builders are not kind when they lay out the engine room.
We also have a spare alternator and coolant pump on board but surprisingly, we have yet to use either. Your suggestion of changing idlers at belt change time isn't a bad one. Especially since we have seen one idler need replacement back at around 4,000 hours.
Thanks for viewing.
you may want to dip those spare belts in 303 protectant it will keep the belt in a lot better shape and last longer keeps it from drying out. you can get it on amozon or ebay and a good marine shop
Thanks for the suggestion on belt treatment and storage.
Subscribing for John Deere diesel tech tips :)
Very informative video. Thanks. One question I have is what gas assist shocks did you buy to lift the bed platform to safely access the storage?
Thanks for the feedback. You are right, those gas struts are wonderful and make lifting the bed super easy. We're using two of these rated at 120 lbs: www.amazon.com/gp/product/B007MUY656.
Life and how to live it.
As with all lifestyle choices, There are good parts and less good parts. When boating around the world, there is more overhead than living in a single location and there are more systems to maintain. But, even with the increased overhead, you are right that's a pretty cool way to live. We've seen some pretty amazing sites in our around-the-world cruise.
Thank you. I love your maintenance videos. I know it can extra work but definitely worth it for the person who desires that lifestyle. A former colleague of mine from Intel is living his dream on an 80 ft. Hatteras. He is retired Navy Captain. adventuresonangelique.com
I completely agree. We'll worth the work -- it's been a super interesting trip.
Yesterday, we changed the cylinder head on the Northern Lights 12kw generator and it's now back to running well. It was a day of work but it's sure nice to see it running well again.
Hope you will post a video of the cylinder head replacement.
We will do it! We're normally too busy to do more than 3 or 4 videos in a year but we do have some time right now and, for some reason, we have several large projects that need doing so, yes, we'll video the head change. In fact, we did video the head change over the weekend. The parts arrived Friday night and we did the cylinder head change over the weekend. It's now running like a champ.
James wouldnt it be smart to have a switch at the belt tensioner?
Kinda when the belt fails, the tensioner will move out full to his full out position and hit the switch, so ou would get an instant warning that the belt has failed.
Yes, that would be effective and it seems like a pretty good idea. Not sure why I've never seen a manufacture install one since any electronic engine already has quite a few sensors on it. You wouldn't think it would change costs or failure modes much.
@@MVDirona probably because those belts dont fail very often, and in most enviroments you get your instant notification by the fact that the powersteering/fan//alternator/ac quits working.
Hi guys, what automation system are you using for your email alert etc? I presume you custom built it but looking for ideas around hardware and software. Cheers!
Your right that much of our configuration is custom software but we do make big use of Maretron (www.maretron.com/) and really like there equipment. We even a NMEA200 network on our tender! With Maretron N2kview (www.maretron.com/products/N2KView.php), it's easy to set up the system to SMS or email you on out-of-bounds readings.
More on our control systems here: mvdirona.com/2018/04/control-systems-on-dirona/.
@@MVDirona Amazing about using rasberry Pis to reset main systems. Learning lots from your videos and website. Cheers! ps. also have NMEA2000 on my little sailboat and tender in progress. Attempting digital switching without buying an off the shelf system as they are very pricy.
If you decided to replace the squeaky bearing do you have the capability on board to do so?
Yes, we have a complete spare alternator ready to go if needed. I'm actually a bit surprised to see these alternators still running without issue at 10,000+ hours.
Do you carry spares for your idler pulleys, tensioner, and coolant pump?
Yes, we have spare idlers, alternators, and coolant pump on board but we don't have the tensioner.
Before you started the job, you shut off the autostart, and verified the blue light was out. Then, later in the video, your generator came on via autostart. When you went up to the pilot house at the end, autostart was off. Is that just movie magic and video editing?
Because this work was done at anchor, we do want autostart enabled on at least one engine if the batteries are anywhere close to needing charge. At some point during the job, I realized that the batteries would likely need a charge before we were done so I disabled autostart on the main and enabled the overall autostart. This allows it to start the gen but still prevents it from starting the main in the unlikely event that the gen doesn't start on command. It probably would have been better if we included this detail but my take was it's kind of unusual to have two engines on autostart and I'm not trying to make the job look excessively complex.
MV Dirona . Thanks, I appreciate the response. I enjoy your videos.
Thanks for the feedback on the videos.
How much power does the to alternators consume under full load and no load?
Each alternator is 190A at 24V or 4.5kW. 4.5kW is 6.03 HP but these alternators are far from 100% efficient. I would guess that they probably draw something close to 9HP and dissipate the difference in heat. Using those estimates, both alternators together will draw 18 HP or about 7% of the engines full rated output.
@@MVDirona Thank you. Hope you are staying safe during this pandemic.
Absolutely. We've been on anchor in Scotland since March 25th. Great scenery but we are going to need to re-provision soon.
How many hours are on the engine and generator
The main engine has 10,993, the generator has 6,462, and the wing engine has 1,062 hours. All are doing well but the main's performance has been particularly good with it only needing injectors at 8,000 hours and, otherwise, it's used no parts other than filters and other disposables.
@@MVDirona Thanks
Are all John Deere engines as reliable or just a few models
nearly 11 thousands hours only a third of its life used up before major overhaul ,in terms of road miles if it were a truck or bus youd average it out at travelling 50 miles an hour multiply by 11.000,so it only done half million and 50 k miles ,a well maintained truck will easy do 1 .5 million miles with an engine of that calibre ,M.A.N ,MERC VOLVO ,CAT ,CUMMINS, the running rpm is around 1200 in top gear
The boats run a bit higher average load that over-the-road trucks. As you know, trucks see higher peak loads pulling big loads off the line and will also see higher loads when climbing hills but only spend a small portion of their lives in either condiiton. We tend to run in the 1500 to 1800 range and often spends days up over 2000 RPM. Our load meter (percent of max load at that RPM) is usually around 60% when underway.
You have more experience than I with high use diesels, but we would love to see upwards of 30,000 hours and 20,000 hours looks almost easy as long as we don't let a maintenance issue end it all early. We try to be careful.
@@MVDirona yehh ,thays high rpm didnt think would have been as high bit without a 12 speed gearbox i guess they would but thete are lots of boats diesel trains 50 60 years old going strong yet modern oil now prolongs better temp resistance and anti friction properties,its the small things like a worn water pump inpellor or a blown oil seal head gasket gets unnoticed and engine gets overheated or run low on oil damage occurs life of engine reduced
That's the reason we keep the engine room clean clean. We want to see nuisance leaks before they become an issue since, as you said, recreational boat diesels don't often wear out. Those that end early, usually meet there end from an operational mistake (e.g. over-propping) or inadequate maintenance.
The water pump bearing could have the lubrication washed off after this length of time. Putting grease back onto it would slow down the wear until you have the time or need to replace it.
Good suggestion. The bearings are separate from the water in this design and won't see water unless the seal starts to weep.
@@MVDirona With engine heat the lubricant could have washed itself off. The sound when you turned the pump was a bearing with no grease to me. A tube of lube / grease is cheaper than a new pump. ;)
time / labor wise, it will be more costly than just replacing the pump.
I agree with you on the bearing sounding a bit dry but, in this case, there is no way to add lubrication to the bearing without dissembling the pump. I like your idea but don't know a way to do efficiently on that pump. Thanks for the suggestion.
If ya ever need that engine overhauled let me know
I hope and expect it'll be a good long while before we need to do that but thanks for the offer. Our engine room works well from a space perspective and feels roomy but, when doing bigger mechanical jobs, it seems to shrink :-)
MV Dirona haha yup, I overhaul engines that would sink your boat, and ya never enuf room when you got er up side down and the crank out, doing one right now actually, rather be on a boat somewheres
Cool. Do you work on mid-speeds like MAN, MAK, Wartsilla, or the really large monsters running at a bit over 100 RPM? I've never done work on them but I have toured the engine room in cruise ships and regional oil tankers equipped with dual fuel medium speed diesels. We also toured the engine room on a Hanjin Container ship (when they were still operating) and it had a single 2-stroke engine at just over 60,000 hp. As you said, the spare cylinder they had against the engine room bulkhead is bigger than our Deere :-).
MV Dirona oh my, I work on natural gas engines Caterpillar, Waukesha, and White mostly for the past 20 years, and all that goes with Oil and Gas compression, will be doing some work on a Wartzila and a Cooper in the near future, will actually be my first time seeing a wartzila.
Nice engines and you have the advantage that they normally are installed with good clearance to work. Sounds like a good gig.
Last summer we got to spend some time on a couple of 500' regional chemical tankers that were LNG powered using the Wartsila 9L34DF. Just over 6,000 hp. Normally LNG but can run diesel as well. Really nice engines and, another nice thing about LNG especially over heavy oil is they are relatively clean. Here's the boat we toured: mvdirona.com/2019/09/oil-tanker-tour/