Propulsion system overhaul of our once WRECKED SAILBOAT - Sailing Yabá 159

[@SailingYaba]

Happy birthday Nico!! We love you!!! 💙

[@nasta67]

VIVA! Feliz aniversário NICO!!

[@cornebistouille]

bon anniversaire NICO :)🍰🍰🍰

[@antoniogomesdeamorim4688]

Nico Parabéns pela passagem de seu aniversário Deus te abençoe ricamente te dando um novo ano repleto de conquistas e grandes realizações

[@iBradWatson]

Happy Birthday Nico! Thanks for all your great work! Cheers!

[@StreetTruckinTitan]

HB Nico! Saude! 🍻

[@ChileExpatFamily]

It is called a THRUST BERING. It is a big deal! and should be super strong and well greased at all times. Jim in Chile

[@williamtellify]

You NEED to secure the prop shaft to the thrust bearing inner flange bushing. As shown now the shaft can move in either direction on the shaft making the thrust bearing totally useless. I suspect that the little hole that you said was for greasing is actually the spot to install a shear pin from the inner collar/ bushing to facilitate install and removal of both the prop shaft or the thrust bearing. This will locate the shaft in the proper location from the thrust bearing/ bulk head to the motor and propeller, this keeps the shaft in place. Once the inner collar is located a pinned with a shear pin, I would guess a 1/2"- 5/8" round rod would give enough strength not to shear in normal operation but weak enough to Shear if prop got jammed / wrapped up. There is no need for the extra collar bushing , if not secured onto shaft, this will rotate on the shaft due to the grease seal . This collar is taking up room were the extra grease is supposed to be for extended running for cooling of the bearing. The housing will secure the bearing in place with the end caps in both directions. Great job.

[@schuttrostig5729]

yes... reverse the thing will just fall apart as it looks. Ben needs to check with a marine engineer before going to the water.

[@Pocketfarmer1]

Welcome to the next installment of”what is catastrophically wrong in this episode?”. Except for when MP was learning diesel repair, every episode has at least one thing that is dangerously wrong. A few got fixed ,ie. Recualking the hull, but most of the mistakes are still in it waiting to fail in a year or two at night in a storm at sea . That boat is dangerous.

[@walterweigert9840]

@@Pocketfarmer1 I agree with your thoughts. In a few episodes me and a lot of other viewers commented about the emergency/escape hatches: they open wrongly and in my modest opinion the are too small. Imagine an accident and/or fire occurs during winter time: you will be wearing heavy clothes and not shorts and tee-shirts. Cheers from Argentina.

[@austingode]

@@Pocketfarmer1that boat is not ….absolutely not an offshore boat . I have been upside down in the North Atlantic on a really well built sailing boat , Yaba underwater looks to me for coastal work and rivers . A similar boat called Santa Cruz capsized of Montserrat in a squall about 1976 ….. there was a fatality

[@JHK66]

Nothing for open waters and more than 15 kts....

[@billh1471]

The thurst bearing plate should be on the aft side of the rib not forward side. Remember the entire thrust from the prop will be on the bearing

[@PaPawsWorkShop]

That looks more like a carrier bearing.

[@hellsbells72]

Jes ,i should say it's on the wrong side,the bolts takes all the force....

[@jeremykamel9655]

@@PaPawsWorkShopit’s a thrust breaking. 100%

[@JHK66]

Thrust Bearing. Plate wrong side....

[@DanielJLopes]

Agree, up with this post. Also, got me a bit worried that they have the slip joint spline painted, is seems to have no play, should have lub and be able to move back and forth

[@delukxy]

Will it all have to come off again to fit the shaft gland seal and greasing box? Even though it's very short the "Cardon" should not be straight. The 2 flanges need to be a few degrees out of line so the universal joints actively work. When parallel the joint floats. Loosen up the spline and grease it. There should be a zerk fitting so the spline can be greased. I've not mentioned the possible forward and reverse thrust problems, they have been posted about. I think there are few problems to be solved before everything is shipshape and Bristol fashion. Consider Nyloc nuts for all of the Cardon bolts plus Blue Loctite.

[@nesbitttom]

I worry about the way the plate is mounted. Remember the prop is pushing HARD on the plate if you allow that plate to move towards the engine even slightly it will ruin the main bearings on the engine crank, I suggest through bolting it and putting supports between the plate near the bearing and the stringer in front of if. Just my 2 cents worth I enjoy your videos.

[@schuttrostig5729]

On top of that the plate is not fixed to a whole frame but to 3 wooden blocks that are attached to the 2 frame pieces. But its a little hard to judge just on video, i am sure they will have an marine engineer go through the boat and that is definetly a point i would ask him about.

[@billgeorgene]

The yellow driveshaft has a spline component that literally slides in and out. It looks like it’s painted in, but it should come apart, which makes it easier for you to fit it and also gives it an opportunity to adjust itself as you’re using it.

[@CoRVoS460]

I'm surprised that this has gone unnoticed. The sliding spline avoids any thrust on the crankshaft bearings which are not designed to take propulsion thrust. There is also uncertainty over the reverse thrust accommodation. An engineer should have been consulted to advise on these things

[@leoncolyer9420]

Happy birthday NICO From Victoria Australia 🇦🇺👍🇦🇺👍🇦🇺👍

[@redbovine]

Your prop will move backward around 3” until it bottoms out on that yellow collar. There is no thrust bearing when in reverse. I suspect this has something to do with why you had to make a collar to go inside the thrust housing.

[@KINGSOAWESOME]

It's been 6 months since I watched. It was refreshing binge watching this build.

[@Adventure-Cornish]

Ben you need to get a professional engineer on this. Hammering on that nut with a chisel is mind boggling and dangerous ? I feel you need more support at the other side of that plate which also needs through bolting as the screws are not fit for purpose. Good luck 🤞

[@miketee2444]

Keep a close eye on how hot this bearing gets. Its failure will be fairly catastrophic and its set up has zero room for guess work. Hauling the boat will be in your future at best if the set up isn't right. Im questioning the shoulder on shaft being correct to transfer load to bearing. Also, your Cardan as you call it wont last long when running level. If they dont have an angle the bearings in U Joints will quickly fail. Just checks so issues dont pile up later. Good luck.

[@fxpthl]

Fantastic kids! Oh yes, HAPPY BIRTHDAY Nico!

[@michielsiebrand7588]

Please prove me wrong, but I don't think you have any way to prevent the propshaft being pulled out into the rudder with reverse thrust.

[@dreadpirateCarlos]

I don't think it will but the load of reverse will be all on the engine and transmission. Not good.

[@michielsiebrand7588]

Please note that the cardan shaft has a spline connection in it and that is there for seperating tension and compression forces from the rotational forces. Therefore when the boat is in the water and the engine gearbox is put in reverse, only the paint on the cardan and the friction between the thrust bearing and the axle will keep it in place. I hope Ben and MP address this because this will bij costly and time consuming to fix, including maybe an unscheduled haull out of Yaba.

[@petercroft9895]

No, it will just pull the sliding spline out of the cardan shaft until that pops right out, or the prop eats the rudder - whichever happens first.

[@merlars]

@@michielsiebrand7588 I agree...the taper on the shaft will prevent the shaft from moving going forward, but in reverse it can walk until the yellow cardan shaft flange hits the bearing carrier. The thrust plate should be through bolted as well with a backing plate. Those lag bolts aren't strong enough.

[@johnnunn8688]

Ben, there’s a lot of good advice in the comments, about that thrust bearing installation, particularly regarding the prop in reverse. Please think about it and change your design 🙏.

[@neilfairless4589]

Nico has been a huge part of the crew rebuilding Yaba and that is a well deserved birthday treat, many happy returns fella.

[@michelbedos9371]

A very Happy Birthday Nico. Now, Why are you not installing a line cutter on the shaft? It can save you having a loss of propulsion at a very critical maneuver and time. Remember your loss of steering?

[@Davidcallard]

Happy Birthday to Nico! 😂😊😊 My congratulations to you!

[@alanglen5902]

You need some slack in that telescopic splined shaft(yellow). The prop shaft must be constrained fore and after by the thrust bearing. The splined shaft allows for movement in the Hull etc...

[@stephensanders8453]

Happy Birthday Nico hope you have a amazing day 🍻🎂🍻 From Steve Western Australia 🇦🇺 😊

[@SmallSailboatCruising]

Gutsy stuff. Many technical challenges to overcome. If you get this right first time you are a genius. Learning by doing eh? I’m in awe of your ability to have a go and learn. Many sources of wise advice to sift through. Best of luck with that mate. So love your videos.

[@colinbagshaw1796]

What happens when you go astern, how does it not pull out of the spline?????

[@maryjnorwood3962]

Happy Happy Birthday, Nico!!!😎❤️😎❤️😎

[@americanpatriot8402]

Marco Polo would be proud of your ship building skills.

[@jimpalmer1969]

MP, you really had your game face on while you were operating the engine!

[@idefixgocho]

Happy birthday Nico. Feliz aniversário Nico.

[@RichardKhan-sd2ln]

Happy birthday wishing you many many many many many many more

[@timmitchell8784]

Yes happy birthday Nico🎉🎉🎉

[@michaeltufillaro1091]

Happy Birthday Nico.....best day ever!

[@pidjones]

Hmm. I'll save my comments about the thrust bearing, and wish Nico a Happy, Happy Birthday!

[@kevdupuis]

I hope you have the thrust plate through bolted to another plate on the other side of the beam otherwise with the prop pushing forward against the thrust plate you will only have the four bolts/screws and wood taking the stress of moving the hull forward. It's a critical point of stress that you would want spread out as much as possible.

[@snowstrobe]

I know nothing about this, but that was my thought too, it surely needs force dispersion on the other side.

[@duanemiller5606]

Thanks! Happy birthday Nico! FYI, it’s called thrust bearing preventing the shaft from going forward or back so that transfers, the power to the boat for propulsion.

[@SailingYaba]

Thank you so much Duane!!

[@davedawson4830]

Happy Birthday Nico🎉😊. Thanks for your steadfast work on Yaba. A lot of us notice and appreciate your efforts. Ok kids, good job - still liking your show after all these years. I'm no expert, but my sense is it's worth your while to pay attention to the technical advice here. Cheers from Vancouver BC Canada

[@jeffreylord8172]

Ben , it's called a "thrust bearing", to protect the engine bearings and is the interface between the propeller thrust and the ships hull

[@SailingYaba]

Thank you!

[@gordonagent7037]

Great milestone achieved, well done

[@perry5598]

You need to drill that bearing housing directly above the thrust bearing, install a zerk fitting to use pressurized waterproof Grease. The grease needs to make contact with both thrust washers. This will cut down on wear and tear from metal against metal and also prevent water leak. The slip joint on the drive shaft also needs a zerk fitting and plenty of Grease.🤔

[@jgriff3218]

My concern was the paint on the slip joint. Does the slip joint need to move freely in and out?

[@srcastic8764]

There was already a zero fitting drilled. He mentioned “the place to put grease in is perfectly lined up”, speaking about the hole where the zero goes.

[@vitaliyrus4048]

С Днём рождения Нико!)

[@donnakawana]

Happy Birthday Nico!! Much love you brilliant fella have a great week! Congratulations on getting here propeller check!!

[@Old-bold-pilot]

Happy birthday…. 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍💯

[@roycelyn31]

Happy Birthday Niko!🎉🎉

[@Davidcallard]

Hi Ben! I see that you already have plenty of very good advice from so many people! This is very valuable for you guys, if you don't have any use for all of the ideas that keep coming at you right now it's probably a smart idea to archive the best ones! Ben! Sorry if I startled you! I only want to make a suggestion to you. It's a very good thing that your propeller is spinning so well! I did notice something else, though. You say that you want to sail Yaba to many different places - excellent! I am just a little concerned about the prop. I would suggest that if you get any ideas about motoring into places like estuaries and rivers etc it could be a smart idea to have a Prop Guard fitted to protect your propeller against the perils of such places! What perils, I hear you ask! Well, think about it! There will be logs, rubbish of all kinds and so on flows the mighty river. Do you know what a Prop Guard looks like? Google it mate !👍 👌

[@kevinmartin3859]

Well done for getting the engine running with the shaft please have it surveyed by a surveyor/engineer to make sure everything is correctly fitted 😊😊

[@stephenprouty8728]

... Nico ... Feliz Aniversário ... Happy Birthday ...

[@JohnCarstairs1961]

Happy Birthday, Nico! Best wishes from bonnie Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@SuperfloDee]

Happy Birthday Nico👏🏻👏🏻👏🏻🤣😁😁🔥🔥🔥🔥🔥

[@CJLeTeff]

Happy Birthday Nico! 🎂🎂🎂🎂🎂

[@fieromike1]

Happy birthday Nico!! Yes. Beer is good!!

[@kennethpaladino4948]

Happy birthday Niko! Props 2 U guys! Lol🤣👍❤️

[@thepigdogpigdog2770]

Happy birthday Nicco your a champion . Regards Tony from Australia!

[@rickbaker9101]

Happy birthday Nico from Kentucky USA

[@charlesbechtel9976]

Happy Birthday, Niko

[@jeffreykendall8110]

Nicco, have a great birthday!!!!

[@buildinggrounds3489]

Nico Feliz cumpleano !!!🎉🎉🎉🎉🎉🎉

[@DonFarmer-hq5sw]

The Cardan should slide lengthwise to elongate or shorten as needed. As you have it the full thrust of the propeller is trying to push the plate away from the timber, Ben you’ve put your cart before your horse 😉

[@Davidcallard]

Where are you now?

[@mylespovey]

Happy 30th birthday Nico 🎉🎉🎉

[@garyc5483]

Glad to see more progress. As a sailor for 50+ years and a large wooden boat owner for many years this project interests me a lot. I am sure you have had advice from many sources but things to note. Make sure all the droop is taken out of the prop shaft before bolting the thrust bearing and the plate to the timber bearer. That weight of that thrust bearing and plate will push the shaft down quite a bit and if you dont get rid of the droop you will soon knock out the packing in the stuffing gland. That will also create a lot of friction/load on the propshaft which will lead to higher fuel usage and fatigue of parts. You really should have a plate on both sides of the wooden bearer. You may think that big nut is tight on the thread inside the flange but a little vibration will loosen it. It should have a locking tab that is keyed to the shaft and then bent over the nut flats or at least completely degrease it and put locktight on the thread ( not ideal but better than nothing.) The consequences of the propshaft sliding aft can be disastrous. Looking forward to the next episode. ATB regards from the UK

[@juliogil2976]

Feliz Cumpleaños Nico eres un crak😃😃

[@Maxdekriek]

hello my Yaba familiy....sending all my love for you guy's 😉😊💛💛you make my sunday's completely❤

[@SailingYaba]

You're the best Max! ❤

[@markchip1]

I would add some extra timbers between the load-bearing frame, the bearing and the plate it's mounted on, and the next one or two frames behind this. That way the thrust from the driveshaft does not bend either the plate nor overstress the frame to the point of giving way or deforming. It's purely a matter of spreading the loads over the structures as much as possible. Is that what the wedges are meant to do? I may have commented a bit too soon then.... Lol!

[@AlfredWilliams-pw1zy]

Feliz cumpleaños Nico ❤❤❤

[@IO-zz2xy]

I am sure you actually need much more grease When I grease wheel bearings I was always told to pack them full if thick wheel bearing grease. Surely that bearing us no different?? Rather too much than not enough, that will be a disaster and very expensive to replace and repair. Regards from South Africa

[@davidallen306]

Nico, have the best birthday ever!

[@rodnelson8110]

Happy birthday Nico have fun and a few beers

[@wvn-scale5395]

Happy Birthday Nico🎉🎉🎉🎉🎉🎉!,

[@6MISFITZ]

Same Birthday as my Granddaughter. Happy Birthday Nico!!!

[@jimshaw2466]

HAPPY BIRTHDAY Nicko

[@sailingsjofagel]

Woohoo..!! Propulsion at last. How exciting..!! It looks like the tailshaft (cardone) has splines, meaning it can extend and contract a ittle to take up the distance between the gearbox flange and the prop shaft. Maybe you didn't have to remove the flooring to fit the thrust bearing? Anyway, it has plenty of clearance now. That is an exciting stage, and so great to see the progress..!! Thanks for taking us on your journey. Cheers. Grant, Adelaide, South Australia.

[@bobrunde2755]

Nico have a Happy Birthday and you do great work .

[@loribagley3555]

Happy Birthday Nico

[@edwincarsonbacamante2122]

Happy Birthday! Nico🎊🎉😎👍🤙👏 from the philippines

[@rolanddunk5054]

Hi, Happy birthday Nico.cheers Roly🇬🇧

[@pjc222955]

Happy Birthday Nico a true craftsman

[@patrickcollins941]

Happy Birthday Nico !!! Great job your very close to splash day🎉

[@Rgarizonahomestead]

Happy birthday nico enjoy many. Thanks for sharing. Have a great week ahead

[@gregemoates1729]

Happy Birthday Nico! From Alabama, Roll Tide!!!

[@gavinmoor8487]

Hope you had a wonderful birthday Nico.

[@TheJohnbrowne101]

Happy Birthday Nico from Gibraltar 🎉🎉🎉🇬🇮

[@chrisbartrum3201]

Happy Birthday, Nico. Many happy returns of the day.

[@bartjohnson8139]

First of all, happy birthday, Nico!🎶🎉🕺🎂 Now a couple of questions concerning your prop shaft alignment. Bearings our a highly critical component to the safe and continual operation of any machinery. The alignment of these bearings is equally critical. The component that you were puzzling over is a thrust bearing. There’s a massive amount of pressure placed upon this bearing when the boat is either being propelled forward or in reverse by the engine. As someone who has set up propulsion engines, and subsequently drive transmissions, and prop shafts, I can honestly say that I have never seen what is a highly critical bearing alignment set with wooden shims. These bearings are set in thousandths of degrees. All of the clattering, and noise made by the turning of your prop shaft, is indicative of improperly aligned, dry, and or poorly, lubricated bearings.. i’ve never understood people rushing through critical component installation, simply out of excitement to see something mechanical start, and move. The safety of your boat, other peoples property, and in fact your lives, and the lives of others may well depend upon the prop shaft being properly installed. Be safe! You’re a prop shaft alignment cannot be guesswork. It is one of the most critical components on your boat. All of that Grinding and whirring noise, trying to tell you something. I’ll get off my soapbox now. I just want you two to be safe, and this whole episode sent up gigantic, red flares, and flags.

[@7LeagueShoes]

HAPPY BIRTHDAY, NICO!

[@agip1787]

Happy birthday Nico...🎉🎂

[@oyou812]

Happy Birthday Nico 🎉

[@mikeyadrick5154]

For that thrust bearing assy you might want 1 or 2 seals for your"Spares" collection------Mikey

[@cdnsoul5808]

Since this has to be kept well greased, I would add a zerk somewhere so it can be done without taking it all apart.

[@paulwhite7593]

A VERY VERY HAPPY BIRTHDAY NICO FROM CANADA

[@bensteyn1974]

Happy, happy Nico, from Thailand

[@citizen127at]

That almost 1/2 inch plate of steel spinning around like that on an industrial lathe is terrifying. It's like a super sized lawnmower blade 😄 If any body part gets in front of that, it will not hesitate, not even for a millisecond. It takes a lot courage to stand there like you're making an omelet in the face of this irresistible force. (4:26)

[@fonhollohan2908]

Man those Ribs look amazing! prop looks good too.

[@hertmond]

Happy birthday Nico from Germany

[@Scablifter01]

Happy birthday, enjoy your day and the beer !

[@scottspencer8358]

Getting so close to sailing... getting exciting !!

[@darylgreen8171]

Happy Birthday Nicko

[@jeremybentley820]

Happy birthday Nicko!

[@ianrusso8790]

happy birthday nico feliz compleanno NICO

[@rolandtb3]

Another major milestone. The engine starts, prop turns, forward and reverse works. Best to verify fit, alignment and function when in the water, prior to sea trials. Major shout out to the bearing supply outfit and the tooling shop for supplying components for the prop shaft assembly. Timeout to celebrate. Nice to see the smiling faces, food and drink.

[@johnnunn8688]

There was no thrust on the bearing, in fwd or reverse. Different story in the water.

[@vaalrus]

Am I backwards in my thinking, or is the whole thrust from the prop pushing Yaba held back by just those 5 lag screws through that frame member?

[@Dude_Slick]

Good point. I would probably go with through bolts and a backing plate.

[@JRLittleArt]

No, you are not backwards. Lag screws are not appropriate in that application.

[@vaalrus]

@@JRLittleArt I’m less puzzled by the lag screws than that the plate is on the opposite side of the frame member. Perhaps some through-holes and a/some backup plates on the loaded side with proper bolts. I wonder which video showed the removal of that thrust bearing housing.

[@schuttrostig5729]

Yes, i would put like 4 big through bolts through the steel plate and the wooden piece and anchor them with some counter plates on the other side of the frame. and also the bolts on the kardan will need some securing and be refastend after the first hour of use.... Eaven then: Consider that the 3 big wood pieces the thrust plate is bolted to are by themself only attached to the boat with 4 bolts and a couple of nails to the planks. So i guess that whole construction needs some reenforcing.

[@vaalrus]

Sorry, @Dude_Slick, I didn’t see your reply when I did the other reply. :)

[@ThomasEJensen_TEJ]

happy birthday Nico. 😊😊

[@wleyder]

Happy Birthday 🎉 Nico.

[@lenvanderschoor4632]

Ben that thrust bearing is designed for axial load only. The thrust washers differ in size on the id since one washer should locate on the shaft and the other one needs to fit snug on the housing. When installed incorrectly it will be useless and might cause additional damage as some of the guys mentioned. You need an additional bearing for the radial load or at least locate the shaft in position. You can change the design to a spherical roller bearing that should handle forward and reverse loads, having rollers, it can take a much higher load. If you give me the bearing numberr you are using I will make a drawing and send it to you, you should be able to make the change to a correct design without too much alterations. I will gladly help if needed.

[@lenvanderschoor4632]

A spherical roller bearing will be able to handle misalignment that might occur on the application as well. If misaligned, you might end up with a lot of preload on the bearing causing it to overheat.

[@bolo863]

Ben I hope you sealed the wood you chiseled behind that plate because if there's a leak in the future it could end up rotting the wood there... Nice job and great progress. Missing the nosey captin Caio!😊

[@SailingYaba]

Everything is painted and protected! 😊 Thank you for caring!

[@jg6579]

Happy Birthday Nico! 🎉