Replacing the Rear Main Seal on a Sailboat (Perkins 4.108 Diesel)
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- Опубліковано 23 вер 2024
- I repair a bunch of stuff on a Perkins 4.108 diesel engine in a sailboat.
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The best boat is one owned by a friend.
Exactly! BOAT stands for Bring Out Another Thousand. And they're a ton of work to maintain. I have enough chores and projects to keep myself busy 😬
@@WaldosWorld A boat is a hole in the water you keep throwing money into.
The best pool is one owned by a friend. 😆
i love watching the work you do,thanks!
@@WaldosWorld what ....no pirates of the Caribbean references?
You could have mustered at least a Capitan Jack Sparrow run
Love my Perkins 4108. Changed the seals on it a year ago in Senegal, Africa. By an amazing local mechanic who did it on board. My boat has been sailing the Atlantic between Cabo Verde islands and Senegal beautifully
When welding to a broken bolt, it helps to weld a washer to the bolt first, than a nut on top of the washer.
Good tip!
I always worry that I'll weld the bolt to the material around it
Hi Samuel: Once in my life I had to have a broken bolt welded, and am pretty sure I'll have to do it again someday on some project or another. Why the washer? What function does it serve? Is the idea to isolate the broken bolt weld from the surrounding material?
Sounds like a good tip and I'd appreciate the reason behind it. Thanks.
@@freebuilder007 It is easier to weld the washer to the bolt because the washer is thinner. You can get better penetration into the bolt and you are less likely to weld the bolt to the surrounding material. Then you have a larger surface to weld the nut to, making it less likely to break off.
Great job buddy! 👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🙏🙏🙏🙏
Really appreciate how you consolidated things and didn’t make a 5 part series over months.
This is the best in this channel
I have worked on 4108 engines forever and this video covers everything and confirms that if it has a gasket replace it. Great video. Thanks.
You were smart changing all those gaskets and manifold studs ! Especially when they installed it back in that tiny space on the boat 👍👍👍
Your quite the talented individual. A rare breed indeed. Just a tip, I saw you use a flathead to pop the oil pan. Ive found using a gasket scraper does a really good job of popping pans and not bending the pan as much as a flathead. I use snapon gasket scraper, and i grind the end just a little thinner to help get it started when popping a pan. Its work well
I do love these small Perkins diesel engines very reliable and simple.
True, wonderfull machines that can create their own engine oil.
I don’t know how I missed this episode Waldo. Awesome job on resealing that engine! I’m sure your friend will have many years of leak free sailing!!
Right there with you, his video today was the first on my home page in months
Nice Cape Dory 36! Those old Perkins are great engines. Defiantly worth rebuilding rather than repowering the boat.
This has been my favorite episode so far. Love learning about boats
Waldo, my hat is off to you sir! You are one talented man. 👍👍
What a great video. You are truly an ace who really knows Perkins engines. Thank you so much for explaining and sharing your skills. I wish you were around San Francisco to work on my Perkins. Thanks again.
Great video, doing this myself even after a full rebuild, that seal is picky. One important thing though: If you do not use the special alignment dowel on the Jabsco water pump for the timing case (Parts4Engines sells it) you WILL have a catastrophic break in the the timing case where the water pump mating shafts meet. The collar on the outside of the timing case is meant to be aligned with the tool then permanently fastened down. You can then take JUST the pump off to service it and leave the collar which is still aligned.
I did not know that!!
Not always necessary but a skim coat of anaerobic sealer in the parting faces of the rear main seal housing is nice insurance to prevent leaks.
Great engines 4108 , very reliable , simple, done thousands of miles with these , thanks very interesting Waldo great everything went well !
Thanks Steve!
The best two days of boat ownership, the day you buy it and the day you sell it.
Welcome to the best life there is, Waldo. It might be your friends boat this time but it won't be long until the sickness sets in and you buy one yourself.
Catalina 22 in my future!
My Grand Father worked at the ship yard. Thanks for bringing back memories! Nice job!
About 45 horse? I had a Volvo D1-30 three cylinder in my Ranger Tug. That one was 27 horse. I love the simplicity of pre DEF diesels.
From a hazy memory the 4.108's are fairly high revving (~4k rpm) hence the high horsepower from such a low displacement diesel. In fact, in the 60's they were used in various cars/vans/taxis in the UK - weren't many high speed diesels back then.
I love the simplicity of older diesels too but make no mistake, modern diesels make more power per cubic inch then the older ones.
I'm in the middle of restoring a 3.152 ... mostly fixing leaking oil is my aim, and a new lick of paint. I think rear seal is fine, but front seal is clearly spitting out oil. ... this is useful, thanks.
Another excellent and thorough repair Waldo 👍🏻🏴
Single best Perkins 4.108 tutorial video I’ve ever seen
I love watching you fix things.
I didn't realize that sailboat's had engines. That one will probably last for the rest of it's life now ❤
Pretty nice, it’s all about attitude and yours is great - heck you even seatested with the owner. Not many marine engineers would get there’re feets offshore. Respect, great attitude to doing it RIGHT and not skimping . 👍👍
I love your videos!! I can’t wait for more! This repair is def reminding me of the range 😭❤
This was awesome to watch ! Never thought about a crane taking the engine out . That’s cool.
Well done! I had a 4.108 on my Islander Freeport 36. Your engine access was miles better than mine! I would have done a new rattle can paint job to be able to detect any leaks a bit easier. Since you had it out it wouldn’t have been that much more work. I also would have rebuilt the mechanical fuel pump since they are notorious for leaking into the block. Loved the 4.108 but hated trying to get parts for it
Well done once again! Waldo is a friend that we all would like to have!
Never seen that way to remove a broken stud before - very nice to know!
Awesome as always.Thanks for sharing and taking us along
I started wanted your channel, and you are just a genius when it comes to welding,replacing parts,etc. I have no ideas to do the things…well done Waldo…stay safe,n watch your fingers n hands…hehehehe
Well that's cool timing, I just went on a sailboat for the first time yesterday, much smaller than that one though. It just used a little 10hp outboard lol
Best UA-cam on Rear seal…..thx, and look forward to more of your videos.
agreed
Nice job. Please do an update at the end of the season in the fall. Thanks and take care.
Cliche.s about B O A T. , etc etc, this guy is a real pro!!! He formulates the plan, extracts the engine, then free unfettered access to all seals! He knows the little tricks, and the appropriate goop to use and where. That Perkins will be skippy for many years to come. ⛵️
Nice job, very thorough. I have a Westerbeke L25 and a 2000 series Volvo Penta I'm going to eventually sell. The Volvo is running well with no known issues but it should be gone through prior to selling it, and the L25 hasn't been run for a couple of years and likely needs some love beyond gaskets etc. they are both in NH so if you or anyone else close by is up for the job and want to go through them they are ready to go, and will be available if anyone needs either of them once they've been serviced.
Waldo, another amazing video! I could watch your videos all day.
I believe that new rear main seal is graphite impregnated, iirc. Great vid Waldo. When are you finishing up the gooseneck?
Enjoyed your video very much, as I sit 6 feet from my 3500 hour 4.108 Perkins, on my sail boat, in NC. My Perkins rear main seal leaks some but not enough to pull the engine. Otherwise, no other leaks yet. If you wouldn't mind sharing, where did you get the injection pump rebuilt? The engine really sounded good when you launched. Thank you.
Great job, that crank looks like one from a Model T, I can’t believe it’s from the 80’s
Wow, I would have expected a boat of that size to have a much larger engine than that! Goes to show how much I know about boats.. almost nothing lol
Every HP goes a long way on the water
That was pretty painless, the crane is a game changer.
I installed a rebuilt Perkins 4.108 in my boat in Tortola BVI.
. Never had problems in 15 years.
Yanmars are popular too. But I always owned a PERKINS. Can get parts anywhere in the world. EASY to work on.
Thanks for another very enjoyable video - very nice work with an excellent explanation of the processes involved.
I know a guy who welds a slightly oversized on the O.D. Washer to the bolt/stud. The excessive depth of the hole on the nut can cause the weld not to penetrate on the stud. With a washer you can get a good weld on the whole circumference of the hole. Then weld a nut to the washer. Again you get more weld lineal inches of weld this way.
Weld the nut on the outside to the washer.
This will allow much more torque without breaking. It seems this would be the standard practice.
Thanks for the great videos! I'm actually learning marine diesels now.
Cheers Jeff
Once again waldo is the goat man cannot make a bad piece of content
Nice video and repair of the motor. I enjoy your channel a lot!
Very interesting, thanks! As a long-time sailor of small boats, I've had the chance to be under power by: Perkins, Volvo, Westerbeke, Kubota and other great little gas and diesel engines. Glad to see this one carefully worked on. Be well, be safe!
A leak free 4.107 or 4.108 is a rare thing to behold
Nice job 👏 great little engines
I prefer to remove the sump while the engine is still right side up to avoid rubbish falling into the works. Flip it for the refit.
Thanks Waldo , l subscribe. However somehow didn’t
Get this one . Really enjoyed it. Incredible production quality.
🎥🌟👍 "Mr. Waldo has a unique talent for creating enjoyable videos about practically anything! His expertise and engaging style make even the most intricate tasks, like replacing a rear main seal on a sailboat, fascinating to watch. Can't wait for his next adventure! ⛵🔧🎬"
Awesome vid, just wish we got to see a bit more of that trailer
Goose neck trailer build part 2!!!
I don't know anything about boats, but I'm watching this guy :)
Hi Waldo Mr cool guy 😎 Yeah loving your videos especially the attention to detail 👍🏻🏴
Interesting that you did not do much other cleaning to the engine while it was out. The pulleys had some visible rust in them. The block needed a quick bath on brake clean and steam. Oil filter should have new and the water impeller replaced since you had the pump open.
13:02 Use 312 stainless as your filler ….
Use acid to strip the zinc coating
Let the heat soak a little longer
Use some sort of impact gun to extract the broken bolt
Well done! Always look forward to your uploads!
Good job there Mr W, glad you resealed it all.
Acronym for B.O.A.T. - BUST OUT ANOTHER THOUSAND
Best two days owning a boat, the day you buy it, and the day you sell it…
My first thought when saw picture, Waldo striked a bargain auction again.
Is there a reason you didn't test run it on the stand to check for oil leaks ?
You really need a big, flat, well li, ventilated , warm workshop Waldo
Well brilliant!! My second love! Sailing and cars! Surprised you didn't rip out the Perkins donk and fit a 3-53!
Are you ever gonna finish your gooseneck Trailer? 😂
Yep, part 3 coming soon!
It's a dream of mine that someone with your skill and care could do this to my 1984 Yanmar 22. Unfortunately I live in Los Angeles so I'll just have to re-watch this video and dream about it.
Where the cork meets your flat gasket, you always want to put a big bubble of RTV right in the corner, that's where it will most likely leak first. (8:05)
Seems like everyone has their own method as to when to use rtv with/ in place of gaskets. Is it a safe bet to always use some rtv on both sides of a gasket when in doubt as the best way to prevent leaks??
Great job! Take care and I’ll see you on the next one…Waldo rides again sail boat style!!!
Everybody needs a Waldo friend your a good bloke mate really enjoy your channel so very varied content
Kym
Adelaide
The amount of gasket sealant you use kind of erks me, but you clearly have more experience than me maybe I am missing something. Nice video.
That was a wonderful video I learned a lot on little diesel sailing engine man very cool
If anyone can make a boring job interesting...Waldo can!
You might find greater satisfaction sealing British gaskets utilising Hylomar gasket dressing. It doesn't harden, is impervious to most common slovents, and most importantly, will not migrate into oil pickups and passages as RTV will.
Had a Perkins diesel in the last genset on my 40' MCI motorhome
Your always getting into something 👍👍
Hi from Milton New Hampshire. Time for a break and finding Waldo.
Looks like a beautiful Cape Dory 36 -- a fine vessel.
Excellent quality video. Thanks.
Nice work.
Get some razor blade sheers for cutting rope seals. Way easier to cut stuff accuratly. My Contenintal F163 motor for my 1978 Linclon SA200 uses rope seals like this Perkins. Great channel.
Gooseneck build part 3 please
Looks to be a Cape Dory….30, cutter rigged. Fantastic boat!
Great video! I'm mostly am armchair mechanic, but with the amount of leaks, I wonder if it would be worth checking all the mating surfaces for flatness. Hey internet, If they weren't flat, can you fix that effectively without a machine shop?
Where’s the gooseneck?
I 2nd Sam’s call to order of the internet expert board members.
Rusted in half at this point.
Waldo. Have you considered using a military deuce and a half as the topic for a video? Seems like it would make for an interesting project.
I think that would be a fun project!
I really enjoy your videos. Thanks
Nice project. Good job.
Nice CD36 and good video of this engine. Cheers.
Rope style are hit and miss but more often a hit if done right like you said add 15thou extra and compress 🎉
Dude!! I’ve always wanted a sailboat!!!!❤❤❤❤
Missed the chance for a Cummins 4bt swap!!
Its his pal's boat, so that is his pal's call to swap it.
Love those “white walls."
Is the compression test you did with paper applicable to all engines ( GAS and diesel, CARS and boats) ? BTW your videos are very well made, with crystal clear explanations good job, I am amazed how deep understanding you have about things you do in your videos I am sure it take huge effort to learn them and on top to convey what you know on UA-cam. Discovery channel should call you any time now.