Detroit Diesel 4-71 teardown
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- čas přidán 10. 05. 2019
- In this video I begin disassembling the Detroit Diesel 4-71 so I can get it rebuilt after seizing. This including removing the head, removing heat exchanger, removing the gearbox and removing one of the pistons. When removing the piston it is seized in the sleeve so the whole cylinder liner comes out instead.
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We need Shift Ya Bastard and Start Ya Bastard here too. You Aussies get all the good stuff.
I love restoration videos especially by people who know what they are doing. Don't give up.
Thanks mate!
As soon as I saw those rocker arms rusted I thought the engine had been under water. The great thing about diesel engines are that they can cop a heap of abuse and are designed to be relatively easily rebuilt by using new liners, pistons, rings and bearings with minimal machining.
Hey Matthew, I'm looking forward to seeing it after it's had it's caustic bath. I think it will come back to life just fine. See you on the launch cruise!
I agree, I've never seen one this bad. I worked on 2-71s, 6-71s and 6-110s in the US Navy. They're great engines and will run for ever.
She's a Detroit it will be fine
Detroit Diesels are wonderful engines. When I was a much younger man, I worked as a diesel mechanic's assistant. We were sent out to the field to recover a Terex Scraper TS-24B. This machine had 2 671s, one in from and one in back. The operator had backed the rear of the Terex off of a dike he was building into water and submerged the rear engine. The mechanic I was helping drove the scraper (with the front engine) out of the water, removed the head, flushed the engine and fuel system, put a new head gasket and had the the engine operational the same day!! Incredible motors!
Sounds like a big job. Nice work!
The comment "you have an unwavering resolve, I've seen lesser men buckle long before this stage" not only is an quote to save in a words of wisdom collection but more to the point could not describe you more. The guidance your subscribers offer shows the quality, type, and loyalty of your subscribers. Looks like you have some valuable sources. Best of luck.
Thanks mate. I really do appreciate all the great advice I get from the subscribers. I'm learning heaps as I go!
@@DangarMarine ...as we are from you Stu. As I've said before, I wish I lived in Oz, I'd come lend a hand and take a load off ya. Regards from an old Pom.
I am *really* enjoying this series. Learning about all you’ve done to rehab the steel boat has just been great to watch. I love the choice to repair the Detroit Diesel - seeing you work through all the challenges of refurbishing a giant 2-stroke oilburner is really inspiring!
Thanks mate, glad you've been enjoying the vids. :)
You have an unwavering resolve, i've seen lesser men buckle long before this stage.
Those men probably lacked the conviction that a six pack of Coopers instils.
Absolutely - my hearts in my mouth watching him do all of this solo. Wish I was there to at least lend a hand!
It's a hell of a project...
If all else fails he will have a massive mooring block.
dude he's making all the money back from the videos. if you ever pull your head out of your asshole it will make a fabulous noise
You will be glad you rebuilt the 4-71. It’s a very dependable engine.
Finally an episode where your sponsor marine engine can throw you a bone 😅
Volvo owns it all now.
Nobody will notice the new Volvo D4 in the end 😂
@@joramvandervorst7715 I'm thinking a D-8.
For all of your episode in this build from the start I have always just sat in the background waiting for the next one, but watching these Stuart beings me joy sir and it's great to learn new info, hints and tricks to this restoration, I can't wait for the finished product. All the best from the UK.
Thanks Jett, glad you've been enjoying the vids. :)
Bravo, you're now a experience Detroit Diesel mechanic by purchasing the longer pry bar. All is good with a bucket of cold beers.
I should write "Detroit service tool" on it. ;)
Love those old 71 series Detroit's. Old boat I use to work on had 2 671s as main engines and two 371s for generators. Those things run forever man. I'm glad you're rebuilding it. Lots of history in the US with those old 71 series
Now this one has been rebuilt I'm expecting it to last longer than I do!
@@DangarMarine it just might🤣
If I'm nor mistaken, you drove that boat to the boatyard under it's own power, didn't you. A testament to the reliability of a Jimmie and the fact that even with a few connecting rods hanging out the sides of a them, they are going to get you home. The Detroit's where built to last, any new crap you would buy has parts that someone designed to break. as long as a Detroit has oil in it, it will run. Bravo, for not being a pansy-ass and re-powering.
It's like a series of Ultimate Shade Tree Mechanic! So damn addictive.
Yes it is. Can't stop watching.
Parts strewn everywhere, got to love it. Finding things to put back is a nightmare. Primitive methodology indeed.
8:30 your mate has no shoes on in the boat yard! Shortly after you test the capabilities of the plastic lawn chair. I love it!!!! Keep the videos coming! Thank you.
Shoes are highly overrated! ;)
As a retired mechanic, your doing great! I'll keep watching. Good stuff Stu.
Thanks Dan!
I can see why the chicken was knocking on your door. I have to tell you. Seeing the way you breakdown this diesel and the location you are doing it in. Into more manageable size parts. It takes me back to watching videos of mechanics during WWII which were stuck out in the middle of nowhere. Seeing you do whatever you had to do to make things happen. It only makes me appreciate what these guys did to get the work done on the planes and other military equipment. With one single task in mind which was to repair the failed equipment at all cost to keep the equipment up and running so our young men could take the fight to the enemy.
You said it right. That diesel went for a swim. I suspect it went skinny dipping more than once. As for the old oil you pulled from the crankcase of that skinny dipping diesel. Take it and make bio-diesel out of it. Then burn it in your newly rebuilt one.
What a legend... your literally doing an engine teardown in the dirt. Its amazing what lengths one will go to when working on your own project! Good luck for the rest of the rebuild!
I know nothing about Detroit Diesels, but I watched every second of this video. You are impervious to events that would defeat most of us.
Keeping the 4-71 makes sense. Refit's can go way over-budget if it's just a new-part-swap methodology. Sweat equity, re-purposing parts where it makes sense and using your skills is a great way for the project to make sense. Great video as usual!
Classic episode. I feel for you. Once you started stripping that Detroit diesel - you knew that you had to keep going once you saw the corrosion. The Land Rover hauling the gearbox nearly had me in tears!
I patiently waited for this episode from the start of this series. Not disappointed. Who else watched this with a mix of admiration, horror, and laughter?
Thanks Frank, glad you enjoyed it. :)
I think I get more enjoyment out of this channel than any other. I've never owned an outboard motor so I didn't watch much in the beginning. But once you started doing restoration work and playing with big diesels, I became a fan. Keep up the great work.
-Joe
USA
Thanks Joe, glad you are enjoying the vids. :)
You are doing great. Get that head tested for sure. Was there any water that came out in the oil? Check that water heat exchanger unit very closely for obstructions. My initial guess would be the engine was overheated. So i would look for the cause of that then the after effects. The heads crack very easily it’s usually the weak point. But o-rings on the head and injectors tubes are other common sources of water in the engine. I’ve put worse back together. They are very tough engines and can take a huge amount of neglect or damage but still be brought back to life.
I'll let Stu tell you the story but here's what I know that may help, To me, It seemed to run OK from Sydney Harbor up to where it is now in the video "Is it a bad idea to buy an old steel boat?" but the GM 4-71 seized up on the hardstand once out in the weather under a tarp, nil emulsified oil was drained out (covered in this video), oil was black & thick though, just a tiny amount of settled and separated, clear condensate water first up can be seen on draining the sump oil, Stu thinks the GM was possibly flooded with sea water in the engine room prior to His purchase due to a leaking stern gland on the propeller drive shaft pissing water in & a failed bilge pump & switch, there is a clip of that leak in the earlier video too. P.S Great CZcams channel Bus Grease Monkey.
Thanks mate. I spent a bit of time yesterday trying to figure out a way to get in touch with you after so many people suggested that I do (I had already watched many of your vids!) The head is already off at the engineers so it will be interesting to see what he finds. There was a very small amount of water that had separated of the oil in the bottom of the sump, but not that much. It wasn't emulsified so I'd say it ran down into the sump from above. I've found a better local source for a full rebuild kit so time to get cracking!
On the 71 Detroit Diesel is a great marine diesel.
Parts should be readily available worldwide.
Do the build right and you will get thousands of hours of service.
Yep, I'm expecting this engine to last the life of the boat once rebuilt.
Classic “Ran when Parked”. Keep up the great work!!!
A Screaming Jimmy that is "a little heavy on fuel" qualifies as a massive understatement.
That's a lot of hard work in a very difficult environment. Kudo's to you! Love the videos, please keep them coming!
I agree
Thanks Dale!
You literally drove it to where its at like this😂😂 a testament itself to those old 2 strokes
those people yelling to get a new motor... the new ones that are cheap don't last and the new ones that do last aren't cheap. I love old 2 stroke diesels. There's just something about em that makes me happy. Mostly being that as long as you do your preventative maintenance, they run FOREVER. Might not be the most efficient or the cleanest, but the old 4, 6, & v8 diesels have soul.
What a better way to spend a saturday night watching you Stu strip down a detroit engine it looks like its going to be a jigsaw puzzle putting it back together cheers Stu.
Doing a great job, I agree with your opinion that putting the original engine back is the best route. I know it's a lot of hard work but everything should go back in perfectly. Thanks for your effort!
My favorite comment: “I’ll save this oil to put back in later.” Good one. Also, don’t sell the Land Rover. I love seeing that beast motor around while you are working on things.
I laughed my head off when you said that hilarious sentence. You have the best sharp humour. I get it every time. I sure hate to see you sell the landrover.
Love your vids and dont sell that rover, you will really miss it if you do.
I’m thinking,
strain the oil threw the wife’s pantyhose good as new.
I understand about the rover. Wishing you the best.
Keep up the good work I’ve watched several of your repair vids for the quick points on outboards and find them extremely helpful.
Just nuff info, not over simplified or overly exaggerated.
Enjoying your channel.
👍👍
I look forward to your videos each week. I got excited before I even watched this one when I saw it was nearly 40 minutes long. I am not mechanically inclined but I thoroughly enjoy watching. I laugh when you say you don’t know much about Detroit diesels. Then you dig right in with a manual. Guts man. Real guts.
Thanks mate, I'm glad you enjoyed watching. :)
The GM (Detroit) was the choice of crayfishermen in Western Australia for many years. They will tell you they never (well, hardly ever) give trouble. I had an ex tour coach as a motor home with a 6 cyl Gemmy, it went everywhere, then sat for 2 years and started first piston up. Wonderful old motor.
Thank you for posting this, i have never seen a engine tied to the dock and a Landover. Outstanding nothing seems to bother you. 👍😂
Surely you see the old Land Rover / Dock method everywhere you go? ;)
I enjoyed watching the teardown. Good Idea to have it rebuilt. They last almost forever if maintained. Thanks for a good VLOG. Ron
Ron Ruethain hell it was running when you pulled it. So rebuild will last for years
Hey !! Guys , Thanks for this Showing Us , I used to work with this Engine , We used for Fishing in the Philippines in 1977 .. Its a Great Engine 6-7-1 and 3-7-1 we reabuild it..
Very cool!
My admiration for your perseverance is unbounded!
Thanks Roger!
@ 19:03 "SHIFT YA BASTARD" multi-purpose lube spray. buhahahaaahaaa
Too funny. I never heard of it in the States. Love your whole series. I'm just the sort that can enjoy and relax to 40 minutes of an engine breakdown. no sarcasm.
Thanks mate, glad you enjoyed. :)
And its matching product "Start ya Bastard".... (really usefull in getting cranky engines to run - ether spray).
Why can’t we have reasonable names like that here in the states?
@@convoked
haha, a mace spray called "fuck off" or "get the fuck away from me" perhaps.
Hi Stu I just finished watching this episode I almost had a heart attack watching you take that Detroit apart. From the look of it your overhead were the rockers are drew salt water thru the vent tube some time when it was under water. Make sure you check the liners for electrolysis . Just remover the hardest part abut rebuilding a Detroit is running the overhead the timing of the valves is critical. I know you know that you have been working on motors for some time. I wish I lived closer I would help I used to make my living rebuilding truck motors. Well talk to you later I do enjoy your videos.
Thanks John. Yes, I really do need to find a Detroit specialist to run the rack and setup the governor before even considering firing this up.
I have TWO of the same Series 71 Detroit Diesels in operation. Built 1957. We operate them on a fresh water lake in Zürich. They look inside like new. Have fun!
Ah, I dream of running in freshwater. :)
Dangar Marine 10 times less repair 🍀
Excellent. Tear down of a DD 71 in real life is something I needed to see. My boat has a pair of 6-71's. Now I know what the engine looks like and how it all functions.
One of the best videos so far. I have limited experience with diesels (none with 2 stroke) but I applaud you persevering with this one; I suspect it will be well worth repairing.
Blimey you have a great amount of resolve and determination not many could or would tackle your rusty old engine , you know they say there is a very narrow line between genius and madness , be careful . I look forward to seeing the beast back together and powering up.
GOOD LUCK
You are a brave man stripping it down in a open yard and not in a workshop but keep and refurb the engine, keep it true.
No, no, don't sell the Landy!!! I'll make a donation to the Coopers/471 fund today. That comment was heartbreaking. I really enjoy your videos and learn a ton from them, thanks for sharing.
Thanks mate, I really appreciate your support. :)
Knock, knock mate - you nail it every time ! Awesome
Talk about perseverance. I feel like sobbing with all the problems and it isn't even my boat. I'll stay a landlubber and just keep watching.
Amazing work as always. It is so nice to see someone not afraid of work. You must love what you do in order to be so relentless
love when the blow torch comes out as soon as something is stuck!!
Not a "blow torch", It's a "smoke wrench" !
He's the reason I bought a lifetime supply of mapgas... Something not givin ... Torch it!
“ Fun FIRST, safety LAST “!!!!
The Dangar Marine motto !!
T shirts !!
Holy shit. This episode just keeps on giving.
From the beer job line to the towing of the engine crane with the landie!!
Bloody gold content mate. Bloody ROLLED GOLD !!
Also. I am
Super stoked you are keeping the old two stroke diesel donk in the big metal tub. Sure , newer , more efficient engines might be great and all , but who the hell wants that. I would rather see the old fuel
Guzzling beast powering the old girl any day. Grunts , groans , filthy emissions and rattles just add to the fun. Yeahhh. Bring it on !!! Thanks for another great vid Stu!!
John Healey I’ll buy one...XXXL!
Thanks John, glad you enjoyed the vid. I can definitely see a Steel Trawler video getting designed soon. :)
Definitely want a T shirt with the new motto!
Jeff Carlsen then he won’t need to sell the Rover!
Guess this is more history now that it's back in the boat. But reminds me of rebuilding my landrover diesel.
Well done, I admire your perseverance.
I really enjoy watching you work on this boat to bring it back. I think she's going to be great!
The Rover is iconic of you at this point i could not imagine you driving anything else. Hope somebody wealthy donates to this channel!!!!!!!!!!
It is hard to imagine a different car, that's for sure... :(
Loved the obligatory plastic garden seat /w bench all ready to totally collapse any time soon , "Yes we've all done it ".
I almost fell out of my chair when he dropped that chunk into the wobbly plastic chair...
I've always found that industrial strength swearing without let up works wonders with stubborn mechanical parts! Wonderful how you keep your cool.
My back hurts just watching this. You're a champ!
When I worked in Egypt as a dive guide there was one dive boat using a 2 stroke......boy could you here it coming....
Loved the Why Did The Chicken Cross The Road joke, spat me bier all over the place... Greetings from Munich.
Hats off to you Stu, you have incredible ability to do this.
Jimmies are some of the most simple and most reliable engines on earth, especially the 71s.
They were also endemic in the country, (Alaska), here for many decades.
I've seen them run completely underwater, and we've received them so covered in oil and filth with the complaint that they were running "very weak" and when we cleaned it off the block side was broken off with a hole bigger than a man's hand and you could see BOTH middle cylinders moving. Compression in 2 and 3 was a bit of a problem.
But it still ran when they jerked it out of the hydro axe it was in.
That one needed a new block.
Jimmies GOOD.
Lots of FUN!
Enjoy!
Hey Steve. I think this one is going to come back 100%. Found a good source of parts locally and the engineers are rebuilding it as we speak. Can't wait to get it back in!
The Episode we’ve all been waiting for!! Bummer about the shape of things inside that Detroit. I kind of had a feeling things weren’t going to be peachy a few weeks ago when I said I was looking forward to the full tear down... I give you a lot of credit though. You haven’t given up and this bot is going to be one hell of a machine once it’s all done
Thanks mate, it'll get there in the end. :)
I would swear you were running that engine not long ago!!!
Looking forward to seeing the rebuild process.
I admire your Stick-To-It-Ive-Ness (probably not a word). A rare quality in people today. Kudos.
I am not a boater, but really enjoy your videos.
Also, thanks for sharing.
Thanks Tony, glad you enjoyed. :)
Heat, crow bar, big ass Hammer - like watching a train crash slowly - i just cant stop watching! I am glad it's you doing this as I'm over getting dirty theses days! Cheers
I’ve often thought of doing this and you have cured me hallelujah!! Every episode if I was doing it would have a shot of my face at the moment I realized I had made a huge mistake! You are an inspiration with your positive attitude and I have put a bunch of mates into the channel. Keep up the struggle!
LOL, glad to have been of service. :)
It's weird seeing this. Usually with a West Virginia accent and "hold my beer" thrown in from time to time has been my experience. Seeing and hearing the Aussieness of it is pretty cool. Interesting "series", thanx for taking the time to make the videos and post them!!!
Love this, finally video of how real people do things.
Thanks Bill!
Hi Stu , I have absolutely loved this series on the steel boat , great work on this restoration .. 👍
Loving this channel more and more, good luck rebuilding your engine 👍🏼
Thanks mate!
Mate, your Russki friends at Garage 54 would suggest putting the Detroit marine diesel in the Rover...keep the Rover engine in front and drop the Detroit in back ...Spasibo!
Thanks for sharing. Can’t wait to see the rebuild.
I just watch your videos from the start again on re-building this boat. Thought this one was the best ,full of laughs and handled it extremely well. I would have push that engine into the bay...
Thanks mate. It was temping to give up on that engine!
We had a slant 6-71 sink in Hong Kong Harbour. Rebuilt it in the open like you are doing and it ran fine.
That would have been an adventure!
It was an adventure. The saltwater suction hose blew out and shutoff valve was stuck in the open position.
hi stu hope youve got the picture in your head of how she will look when engine finished and all painted up the boat will give you many hours of pleasure well done stu keep up the good work
Oh yes, I picture that in my head every day. It's what keeps me going. :)
I get tired just watching these videos. Once again - outstanding. Thanks, Stu!
Great episode Stu, can’t wait to see the finished product! Waiting patiently from Long Island NY
Nooo don’t sell the landrover
Michael Dunphy That’s what I said-don’t sell the Landrover!
I'll try not to!
@@DangarMarine take the motor out of the land Rover,,go to sea for six months and land for the same,,just throw the motor back an forth,,ha,,good luck,,I'm trying to get the nerve to sell my bike,,,,hard to know what I want to do more,,good luck,,and that's the way to do a boat, all or nothing,,
@@glenbaker5311 They did that on RoadKill. ( Boatkill! The Muscle Truck-to-Boat Extreme LS Engine Swap) czcams.com/video/qI0ve18j0TQ/video.html
I wouldn't recommend it.
If he gets some donations maybe the Landrover could stay...
Stu, that rusty engine is a great reason to go to the dry exhaust. I bet sea water back filled the exhaust when the engine wouldn't start. BTW, you could print countle$$ quote$ on tee $hirts from this legend of an episode!
Looking forward to the next vid......
Stu I 'll buy a few Quoted shirts for funding. If I wasn't doing a diesel conversation on my baby acco 510A 4x4 I d help you out so you didn't have to sell the land rover.
Awesome series of videos mate, great to wake up on a Sunday morning and get an update.
My Dads has had Detroit Desiel engines forever. If I were to guess he's probably got about 25 laying around from 253, 471, 671, 6v53 and two 8v71's. They are great engines. I've got an 8V71 with a turbo on a stand in my yard that I have just to start up every so often just to hear it run.
He sounds like a serious fan!
No, ya can't sell the Landy! It goes so well with the boat. They are both classics!
For a guy who has trouble with keeping his weed whacker running (not a euphemism), this has been fascinating viewing. I’m going to miss the old Jeep if it gets sold.
Not a ‘jeep’ buddy..
It’s a Landie!!
Hi from England. A dignified and orderly country. We tend to avoid using four letter words in polite company.....
Amazingly imaginative use of cranes and jacks - well done!
Fantastic video, I’m absolutely hooked. I’ll never own a boat but live your approach to engineering. Good luck with the engine.
No stranger to hard work. Keep it up.
The howl of a uniflow scavanged Detroit making power is a great marine sonic signature. Keep it!!
Been looking forward to the engine work
Me too!
You sir are a trooper. Keep the faith, it will eventually all work out. Looks like pure pain in the mean time.
Pure fun in the meantime! ;)
@@DangarMarine I like that! You ROC!!!!!
I've been waiting for this video - can't wait to see what's next!
Its the time for mechanics corner on Saturday night you beauty Stu good luck although you have ingenuity.
Detroits are the most rebuild-able engines on the planet....
This is an AWESOME engine! These thing are TANKS!! one of the biggest problems is the y don't get run at temp. long enough, they LOVE to work. I don't think you will regret rebuilding it,
Oh man, I loved this video. I’m sorry but I love watching you wrestle with stubborn engines... it’s so entertaining!!! I’m glad you recorded all of it.
Just as well. Having just the one engine on your boat it needs to be the most reliable engine you have ever owned. You trust it with your life after all...
Here in the USA we have a saying 2 is 1 and 1 is none. I like the idea of a backup of some sort.
Re: Transmission and flywheel removal - Oh, that feeling... it's just keeps getting worse as you go :( The phrase, "It's like trying to make chicken soup out of chicken shit," comes to mind! Good on ya', mate! It's tough doing it on the ground rather than in a fully equipped shop. You've been there before, you just keep "hammering" away at it, throwing what you have at it, and then you're finally through it! Keep your chin up... you're gaining ground!
Love reading all these. All I can say is Stu is a Shining example of the never give up or it beats you. A good mechanic never gives up just accepts slight modifications😁
Thanks Gordon. Love the chicken soup expression! :D
Don't force it!...... Get a bigger hammer...!
Hats off to you Stu you have that “never give up” Aussie attitude. A coldie at the end of the day makes it all better 🍻 Cheers
dude you are definitely my new hero using the landy to remove bits classic mate, all you needed was a bunch of drunk mates and it would be perfect , don't change dude
Thanks mate. ;)
I bet your glad it's only a four cylinder. A darn fine display of bush improvisation.. I got skun knucles just watching.....
Thanks mate!