Diagnosing the Detroit Diesel 471
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- In this video Adrian and I teardown the Detroit Diesel from Renko to find the source of the oil leak, which ends up to be leaking wrist pin / gudgeon pin seals. While the engine is out we also add an air compressor along with several other improvements to make the most of the opportunity.
This particular leak allows oil to flow up through the conrods, along the wrist pins then out the sides of the piston. It then travels through the liner ports and into the airbox which should only have fresh air and exhaust in it. The oil will then leak out through the airbox drains into the catch can and/ or out the exhaust pipe.
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I probably should have explained a bit about how these Detroit Diesel engines work any why the gudeon pins need to be sealed. Because Detroits are a 2 stroke motor there is an airbox between the combustion chamber and the sump. The bottom rings on the piston separate the airbox and the sump, the top rings separate the airbox from the combustion chamber. Without the gudgeon pin seals oil would go into the airbox, not drain back down into the sump. Oil in the airbox can go into the cylinder and be burnt, out the airbox drains or straight out the exhaust pipe as a liquid. In my case I was getting all symptoms. This video explains more th-cam.com/video/Xa2x5vrie-o/w-d-xo.html
I can only hope that people like Adrian will be around in the future. He’s a really great mechanic. Knows his stuff.
Adrian comes across a real top bloke to have in your corner.
Absolutely, so glad I was introduced to him.
He does seem like a really nice guy!
definitely seems a good bloke and is a Detroit guru and a bloody good one at that!
Yeah, but man, that sunburnt nipple ...
He's a guy who clearly knows what he's doing and does it right. Rare these days
It's so refreshing to watch and listen to someone who knows what the hell they're doing. ONYA Adrian.
I worked for MTU Detroit Diesel Australia for near on 10 years over here in the West and can categorically say that the fella that is repairing your engine now knows his stuff.
Thanks Jake, he's certainly been working on them a while now.
The oil leak was like divine intervention and saved you a lot of grief later.
If their is a god of Detroit diesels Adrian is the profit.
This is the headline comment and even before pressing play I'm in suspense over what Adrian and Stu will find... Drama over a Detroit
@@paulaherring2786 he certainly knows his oats, bit of a man mountain, looks like he could have lifted the head of by hand if he needed to.
This video/tutorial has to rank in my mind as one of the best most instructive lessons I have ever watched. Adrian is obviously at the top of his trade and, respectfully, no bells and whistles, just solid honest facts from knowledge and experience. It never ceases to amaze me the lengths some “shady” characters will go to in order to avoid doing the job the right way. Many years ago,,, I was fired from a garage in the UK because I found a crack in the cylinder head ( combustion chamber) on a customer car that they had bought from the garage workshop i worked for and I had refused to fill the crack with araldite glue. No wonder the motor trade attracts so much cynicism. In this video, Adrian not only points out the issue but then explains why it should be done correctly. Great info.
Thanks Todd, glad you liked the video and good on you for refusing to do the dodgy fix. As you say, things like that are what give the general public a very suspicious view of mechanics.
Man, I'd be ticked having to take the engine out just because the "expert" didn't do things right. Glad you have Adrian going through Renko's engine this time.
I would be pissed....
they will never stop leaking for long.... they always leak ... unless they are out of oil...
Expert = X being the unknown quantity and “Spert” being a drip under pressure.
@@willjeffery2661 The version I have heard is "Ex" = has-been, spurt is a drip under pressure. Close enough, LOL
Man, I'm sitting here locked down in the USA, it's snowing, and now I want pet chickens *and* a boat. Thank Adrian for being so open about his craft for us - it's a true pleasure to watch and learn from a master.
It's great that Adrian is very happy to share his knowledge. Much more to come on reassembly!
Yea, I’m in USA too. But I’m in Florida. Fort Myers..
No snow here 👍👍
It’s been 30 c in Melbourne for last couple of days
Likewise , Blowing a Gale here in Coastal Cork Ireland, High Winds, adjacent fields saturated due to constant ongoing Cyclonic activity, Storm Surge predicted in Cork Harbour tonight coupled with very High Spring tide, pleasure to watch both of you at work, Stu is getting a Master Class in Theory and Practice clearly 'The Master and the Apprentice." at work...www.irishexaminer.com/news/munster/arid-40190646.html
@@CaptMarkSVAlcina 30°At 6am in north qld
I'm 46 years young can i be Adrian 's apprentice what a cool dude i could watch listen and learn all day everyday
Nothing like having a Master Mechanic help you rebuild your Engine. Priceless............................>
This guy know his engine, thanks it was super informative
Glad you liked it!
Those blue heelers & tennis balls . . for the love of God never play their game , it never ends
But they’re sooooo cute, how can you say no to that face...
What a cool name, blue heeler. Your heels will turn blue because they work you so hard
Grandma had a Red when i was growing up, could run for hours with her herding me and she wouldnt stop.
He doesn't lose interest in a hurry!
We had a red heeler - even in her old age with a severe heart murmur, arthritis, partial torn ACLs and a 7 cm liver tumor, she still ran like a mad dog around the park trying to herd her people. She'd be chased by a dog 1/4 her age and would turn her head while running, look at the other dog and accelerate, leaving him/her behind. Heelers have a huge amount of energy, bordering on insane and they never give up.
Adrian seems to be a master mechanic and still has the manual with all the specifications out for reference.
I bet the first man that worked on the engine doesn't even own the engine manual!
JIM
Wow, whoever built your engine should never been around a Detroit, sorry to see this. Looks like your in good hands now.:)
cda-engine-reconditioning/dee-why
holy smoke...mind blowing level of detriot knowledge...top man.
the nursing singlet is quite a statement too.
Under rated comment! That "easy access" hole... reminds me of a mentos ad from a while ago
Adrian is a true legend mate.
He sure is.
Absolute ripper legend, he is.
Adrian knows his stuff! Awesome to see a real professional at work.
Couldn't agree more!
Doesn't get much better than this. It always costs something to meet a real pro like Adrian, but what you learn by the time it's over us priceless. Not to mention he seems like a top notch friend.
That is the great thing about working with Adrian, he really knows his stuff but he's fun to hang out with too.
Nothing better than having someone with experience in rebuilding an engine especially a Detroit diesel
Wow, this gives me a whole lot more appreciation for smooth running rebuilds and having a true expert involved. Thanks, Stu and thank you to Adrian for sharing his vast knowledge with us, too.
Great video, thank you. Must be a comfort having someone with Aidrian's experience and knowledge strip down, diagnose, repair and rebuild the power unit for your boat. I'm hooked.
Having Adrian on the job is giving me great confidence.
The diesel whisperer ! very nice guys really enjoyed this rebuild...
Glad you enjoyed it.
Absolute gold being able to listen to Adrian. Literally like being there.
Adrians a pure petrol head, nice to see knowledgeable and skilled ppl. A relief actually. Glad you decided to tear the engine apart again. Its gonna run better and probably forever now that the errors have been corrected. I really am bummed, that all the prior effort of building that engine was, well... shoddy. Man the cam lobes, the effen bolt in the bottom of the pan, and oh wow the pistons and wrist pins, then the connecting rods at their limits. My gosh that engine was gonna fail way sooner than it should. Gosh Stu, not an easy position to be in. I hope it all gets sorted financially with as little pain as possible.
I'm really glad I decided to pull it out again soon. Once back in it should give several decades of reliable service.
It took me three days before I could walk upright again after the Rescue Diver course at Abyss in Sydney. You've done well to bounce back.
Adrian is a legend among men.
Paul
Hey Paul, it certainly is a full-on course. We were all worn out at the end of each day.
This guy has a wealth of knowledge enjoy watching him.
man adrian knows his engines and a good old dawg for sure
What a vast amount of knowledge and skill he has on those engines.
Here comes Adrian 🙇 the god of engine repairs! Excellent job, excellent catch Adrian. This episode was awesome. Looking forward to seeing the Detroit back and running :))
Glad you enjoyed it. Me too!
Adrian is the Detroit whisperer! Honestly - he knows these engines like the back of his hand and what a knowledge. Washing the pistons in petrol by hand - absolute classic.
How can anyone keep smiling when it is obvious that the first 'mechanic' to rebuild the engine has effectively wrecked it? I can foresee a hefty court case coming. Adrian deserves a medal.
Was a bit of Disaster the first time…
Just graduated with my AA in diesel/heavy equipment tech and holly molly am I glad I got taught the right way. Really feel bad that you have to go threw this twice but makes great content.
Always good to get the right training for the engine you are working on. Glad you enjoyed the vid.
Adrian is the orical when it comes to the Detroit. Be hard pressed to find someone like him in this day and age. What a bloke. 🍻🍻
Stu when you were rebuilding that you talked about those seals on those Pistons so I don't know why these guys shouldn't have known what was going on? Thank goodness for Adrian. All the best from Canada
This once again demonstrates that machine specific knowledge is king. What might look like a reasonable installation procedure actually isn't if you have intimate knowledge of how the thing works.
That's it. It's not a completely crazy thing to do, just not right in this situation.
Adrian seems like one of those true journeymen of two stroke Detroits. one of those people that really knows his shit i learnt quite a bit from this . thanks for the upload Stu
What a knowledgeable Detroit guy, and readily gives up good information!
When you say Australia this guy is it.👍🏻😜
It just goes to prove that there are Mechanics, then there are Mechanics.
What a gorgeous horse not only is she beautiful she has a gentle spirit. My oldest brother's name was also Adrian miss him greatly unfortunately he died of cancer.
She is very beautiful. :)
Good vid Adrian knows his Detroit’s for sure had 4 6-71 Turbo on my coast guard ship we had to manually drain our air boxes once every 4 hours. Didn’t have auto drains
Great to watch an experienced operator who obviously knows his stuff.
Amazing, absolutely brilliant. Listening to Adrian tell you every issue that could happen to every part and why it needs to be adjusted a certain way is truly a treat. A Master Craftsman to say the least!
Having said that, not knowing everything about something is not a reason to not work on it, if you take the time to learn what you don't know. However, learning on someone else's equipment and charging them for it while doing shoddy work (oil pump bolt in the oil pan, not tightening the roller parts to specs, etc.) is reprehensible. Having that engine stop working while offshore and putting lives at risk is beyond the unthinkable. The previous rebuild should be refunded. Period.
Dangar Bay seems such an incredible assemblage of characters, menagerie of animals, and tropical environments. Such an unfortunate blow that the first refurb was done so badly.
So there are other women that watch!! 😂. The men are enjoyable, the nature is gorgeous and the mechanics are lovely. What is there not to love?
It was a shame, but what can you do except smile and enjoy the journey onwards. 😊
Stu has such a great attitude - just keeps looking and pushing forward.
@@paulaherring2786 There are indeed
@@DangarMarine humor is when you smile anyway
When you traveled through the US you mentioned you were surprised with the difference in certification standards to be a mechanic in the US and AU. This is an interesting counterpoint that highlights the difference between being "certified" and being a true expert/craftsman. Adrian is a god among men.
That's it. Certification is very broad. Knowing the exact engine you are working on is something that only experience can give you.
I love this especially since I'm in Diesel engine school . Diesel 1, to be exact, this is very helpful thanks !!!
Glad you enjoyed it mate. Good luck with your training. 👍🏼
Brings back some memories of procedures for me. Last i saw the inside of a Detroit was 1985...In class. My advice to you would be to use your classroom/lab teaching to remember WHERE the special/unusual procedures are that you need to look up in the book...not necessarily WHAT the procedures are. Note that Adrian had the book open...
Love your vids down to earth informative and just generally great to watch, enjoyed this last video keep up tbe good work.
Jim
You have to earn experience, there is no RPL for that! Ole Mate looks like a shearer, but certainly knows his craft!. Luv ya work!
It takes me an hour to shear one sheep
So
No shearer
Didn’t understand a word of this video but loved it anyway. Great to see a guru like Adrian in action. One day I’ll figure out what a centre punch is and why it’s bad on a piston. 😂
LOL, don't stress mate, that's why the world has Adrians. :)
@@DangarMarine haha.. and thank goodness for that!
Glad you got Adrian to help you with it, he clearly knows what he's doing, seems like a great bloke too. The guys who rebuilt the engine should be coughing up for him to repair it for you, but I guess you've been told that already.
Crikey this was thrown together wasn't it? Jeezo you missed a bullet with that oil pump fastener!! What a mess. So sorry to see this Stu. At least you know this time it will be built properly!
I have rebuilt 100 plus 471's and NEVER had one come back ,, hope your new builder is a good one Happy Holidies and Luck with the motor
I can’t be the only one that feels like if you put Adrian alone in a room with a 3D printer capable of making any shape of any metal, he could produce one of those engines entirely from memory. Truly impressive.
I think you might be right. We did ha e a chat about 3D printers. :)
You got a real professional there 👍🏾
The Detroit ran and sounded so good even with the looming problems. Good thing you didn't have to keep it as it was. Adrian just oozes expertise and you can't help but love that Detroit.
It did run well, the problem it had didn't significantly affect the performance, just the oil consumption.
@@DangarMarine Some folks would have opted to buy oil rather than rebuild. Glad you didn't. The top of the sleeves were gunking up and the positions were becoming unusable. Don't be kind to the shop that screwed up the rebuild. I wonder how many engines they've touched that are out there dying prematurely.
Nice video. I can understand almost every word of that language you guys speak (being from America). Your channel really is a ray of sunshine some days, thanks.
Thanks Mark, glad you enjoued it. :)
Adrian is a gem.
Sure is. :)
Wow that was 40 minutes? The minor details that make a Detroit what it is are absolutely fascinating
I’m really enjoying heading up to Adrian’s each day. Technically its work but I sure look forward to it.
In my years of dealing with 71 series Engines, I found that a good shop is worth their weight in gold! We had a problem child Inline 6-71 Generator Engine that was out so much I swear I could have done it with my eyes closed. Finally we tried a different shop. This new shop looked a lot like this one and man they new those Detroit's inside and out! As a rule, if I walk into a shop and it looks like you can eat off the the floor, I'm worried. Nothing wrong with a "clean" shop but when one spends more hours cleaning rather than working it worries me. As for the first shop, I would be having a long talk with them and they would be paying for parts! Good for you that you got to find a shop like this one and I hope you got to really pick his brain about any "quirks" that this series have so in the future you will be in a better position to do some of the work yourself! Thanks for another GREAT Video!!!!
You took the bad news like a champ. It really is better to find it at a manageable time & expense, rather than finding out on the open waters when the engine fails catastrophically. Adrian clearly values a job done thoroughly and right. The world could use more Adrian's!
I used to have a love/hate relationship with the DD471
Thankfully they are in the past and I can just remember the good times.
Your friend Adrian is a great mechanic!
Drinking game. Everytime Stu says "yeah right". I'll see you boys in Valhalla.
Yeah right
Be kind, he is getting a schooling, and great help to boot.
I really like the notion of blokes sharing their knowledge these days, and not hoarding it anymore. Makes them seem more genuine.
As a mechanic Stu, I found that so many small things we take for granted can really bring us undone, It's nice to see a pro engineer showing us the casual mechanics of how every engine has its differences, Thanks Stu and Adrian, I always enjoy learning from the best. Cheers, Sam. p/s Dive Master next.
Each engine sure has its idiosyncrasies that you really need to learn over time. Am considering dive master... ;)
That Blue healer is too cute ! We have one and he loves to play ball too . It's either play ball , or , chew on me and listen to the funny sounds I make . Smartest and most loyal dog we ever had . I was a bit surprised at the oil pump bolt laying in the oil pan . I never saw that before . LOL
He is a great dog, very good natured.
Blokes- We always used a Golf Ball to smack the wrist pin lock into pace on the 71's. No problems, no worries. Cheap and soft , works well. Good job diagnosing.
Yes, I have heard that people use golf balls.
Good timing on the rebuild. Yup, if you haven't had a reverse start on Jimmy you have never driven one. Freaked me right out the first time. Smoke pouring out the air cleaner. Haa. Daisy is such a sweetie. I gave been seeing these t-shirts on Facebook lately. Makes me think of you Stu. It says " Yeah, I talk to chickens. What of it". So wish I could get you one. Lol.
oh remember the simpler times where we were happy with sails and horses.
I am glad you were able to salvage the liners. That saves a few dollars.
Yeah, nice to save a few bits and pieces.
Adrian is a very good natured and wise man in the ways of Detroit's. Easy to see he knows his stuff and likes to share his knowledge. It would be interesting to hear the outcome of any conversation you have with the manager of the shop that did the original rebuild. The video evidence is pretty compelling, they didn't get it right and should make a contribution towards this repair.
Also, I hear bush turkey makes an excellent holiday dinner.
He is very open with his knowledge which is great.
Hey Stu, I’m early to a video, for once. The Detroit rebuild series you’ve documented is an absolute legend, I’m looking forward to seeing this 471 set back into Renko... Here’s hoping this is the last time Adrian ever has to take the engine under the wrench. Cheers, mate.
Hi, I am a retired diesel mechanic from North Carolina. I really enjoy watching your videos, especially the ones about detroit diesels. I have heard that if you don't have the kent-Moore tool to seat the wrist pin seal, a golf ball will work. Keep up the good work!
Curve in the ball much greater could dint cap , in next video u see diff in shape of ball
To
Tool
This is really interesting, one of the best videos from Dangar Stu
Thanks Fred, glad you enjoyed it but it was all down to Adrian.
Hello from Rochester New York, USA. Where it’s cold, raining, dark... your videos bring a nice reprieve
Glad you like them!
That's amazing when your hire "professionals" to fix or rebuild something, then you have hire a real professional to fix what the "professionals" did. Nice to watch the process and discovery. Adrian is a legend.
very annoying that you had to go through all this but i was glad to hear you say your turning it into a positive, knowing more about your engine has to be a bonus when your out and about and things start going pear shaped.
I'm sorry you had such bad luck with the previous rebuilder. I'm glad to see you getting it straightened up. Looking forward to seeing you underway again soon.
You and me both!
Stu, you have to keep us all informed as to what your previous Detroit "specialist" response has been and what compensation they have forthcoming. Your silence on the subject is admirable. keep us informed mate.
Yes, I don’t like trashing people, life goes that was sometimes.
Adrians Niple sticking true his shirt 😁 rocking a mowhawk 😂 brilliant! And what a knowledge. Absolutely my favorite topic, the working of the Diesel engines.
Well at least you got a former star from the Mad Max movie to fix it.:)
You knew enough to know that you did not know. Unfortunately, you did not know enough to figure out if your mechanic was worth his salt. Fortunately you have yourself a standup guy now. Thanks for the education and the entertainment, Stu. Merry Christmas, to you and yours!!!
Merry Christmas Ed.
Hey Stu that video was an education. The really good thing (apart from tapping into Adrian’s expertise) is that you were not wasting your time in pulling the engine and transporting it ashore.
Some good saves there anodes, oil pump securing bolts, cam followers(?) damaged pistons and of course the small end bushes and the small end (wrist pin) sealing discs.
At least you are now better placed for a leak free engine, reduced oil consumption and with a fair wind - longer engine life.
Bummer about the $$ but gotta get it right come what may.
Yes, I feel very happy that I did pull it out again now. Will be way better when it goes back in. Not just fixed, but many other improvements too.
Thanks for the update. Hopefully the shop that made the rebuild will take accountability, although I understand if that isn't a discussion that will be in public. Happy the reason was so clear and now you can push forward. Have a nice one.
Thanks mate, you too.
these old detroits are to be worked on by real experts that know all the tricks to get it rite. an education to us all.
When someone disassembles anything and throws it in buckets either it becomes scrap or they are a baller lol... This guy is the later half.... This is a great video!
I am 59 years old and have been the owner of several Detriots.... My last 2 were Series 60 12.7s.... Getting the old screamon demons to stop leaking oil is going to break you but there will be many videos of mechanic work we will enjoy watching you perform through the future.... I suggest 1. Drink the beer 2. Enjoy the boat C. Wear earplugs and wipe up the oil...
Enjoyed this video a lot, great old workshop and top mechanic. I could work there all day and enjoy life. Old school engines, great stuff.
loved how this engine guru optimised the liners to use in each bore for best fit,most would,ve put same liner in each bore,he certainly has swallowed a few of these engine for breakfast ,and Stu just could nt stop drooling over the turbo engine wishing if only ,but hey i,d have non turbo more robust less to go wrong will outlast any turbo engine
fascinating video ive never seen a wet liner engine stripped before bet those pistons were expensive be great when its finished
When the dog is called Detroit you know your engine is at the right place
It is a good sign! :)
I’m envious of the knowledge Adrian possesses and using an oil sump pan as a receptacle for petrol to clean the parts is a classic mechanic trait.
As stated by others , I would be contacting the so called experts and let them see this video to show them how expert, their expert, is.
What a privilege to work with a master. 👍🏼
It is.
Your commitment to that ground anchor is admirable. I would have been looking for a yanmar dealer a long while ago😁
That engine is getting a lot of love which is so awesome. It must be great to have an expert as a mate. Nice job.
It is such a relief to have him on the job.
Daisy reminds me of a chicken that played the piano when you put a quarter in the slot and several kernals of corn would drop down at Paul Bunyan Land in Brainerd, Minnesota back in the fifties. Great side show!
Thoroughly enjoyed seeing the Detroit getting fixed. My kudos to your friend Adrian. Also enjoyed “bird time”. If my10th and last dog (a killer Cairn terrier) goes before me, I’m going to get a few chickens. Back to the motor though, having been a machinist and my own mechanic for the the previous 40 -50 years, I feel you are getting set up for long lived success. That is a great thing as I enjoy the fishing trips, the diving and exploring also. Keep it up.
Thanks Michael. I too think that once Adrian has fixed it and it is back in it is going to give many decades of reliable service. :)
What a brilliant guy
well, despite all the somewhat inevitable accusations etc. at least the questions are answered and you know what is going on
Im a bit blown away by what Adrian knows and how he has applied it. Remarkable individual.
He does have amazing knowledge, I’m lucky to have met him.
We had a house chicken for a while, named Dinner. She was a rescued meat chicken (too small for slaughter) so she didn't live long, just 18 months, but she was a character and remarkably smart. She and the cat used to compete for my wife's lap. 🐔
It's amazing how much personality they do have.
A friend of mine's dad worked for them for about 40 years. But he worked on the really big motors.