Why I do not rebuild turbochargers!
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- เผยแพร่เมื่อ 15 พ.ย. 2021
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All these years and this was the best turbo explanation I’ve ever heard!
As an old lorry driver of some 40+ years, I have always let the engine tick over for a few minuets before turning it off so the oil keeps circulating around the turbo, never had a bad turbo on any of my own trucks. I managed to get just short of 300,000 miles out of my old 2.5 VM and the the turbo was still good, and regular oil changes every 5,000 miles.
Yes that is what they told us too back in the day
I had Land cruiser lj70 and it even read on the dash that dont shut down after hard use because turbo will fail.
The same is done in aviation.
'Are you sitting comfortably kids' 🙂 sounds like me explaining why I'm in the garage again
That's Mike showing his age y'know (ask him to tell you about getting the invitation to attend the sea trials for the ARK after she was launched by NOAH). MANY decades ago (back in the 1950s) there used to be a kids radio programme on the old BBC. The show was called _''Listen with Mother'',_ and the woman presenting (before she started reading thestory) used to say _''Are you sitting comfortably children?''_ (there'd be a short pause as if waiting for us all to say yes, or be sat nice and quiet)...and she'd then say _''then we'll begin''_ ...
It shakes like a defecating dog....😂😂😂 (4:03)
Excellent video!!
A friend has a bitter sweet experience with a Chinese insert. The first one flew away after a couple of kilometers, the new one replaced in the warranty has been working for him for a couple of years. When you ask him or let the turbine rebuild or do it himself he joins your opinion.
Cheers to King Mike. 🥃
I rebuilt quite a few truck turbos and never had any issues. So long as you keep the two together. If I remember rightly the fans are individually balanced.
th-cam.com/video/QRd257ktTt4/w-d-xo.html
@@BritannicaRestorations Thanks. As I said, I never had any issues. That company balance them in one piece, but you don't have to.
Excellent explanation. Thanks a lot.
Glad it was helpful!
Excellently explained Mike.
Glad it was helpful!
Best film yet Mike. Extremely interesting, especially as I’ve just had a brand new Garrett turbo fitted to my wolf yesterday. Thanks Mike. 😉👍🏻
Sounds great!
Thanks again
Always welcome
i rebuilt a new core in to my 300tdi turbo and it works great
Very interesting mike 👍
Glad you enjoyed it
Ghana maintenance Project..I can feel lot more instructional videos on horizon......I can not wait...
very interesting .. i don't think most people realise the speed a turbo spins at , and yeah regular oil changes & i believe in letting the engine idle for a few mins both at start-up & shutdown help
Correct
I mistakenly diagnosed a whine as the turbo and replaced the core with a Jerone cartridge. Looks great but when bolted together, the cold turbine fauled with the housing. I had to shim the housing to get clearance (don't ask how, it's embarrasing)....eventually got it all together and it's been running OK for a few thousand km....time will tell. My 'turbo whine' turned out to be a plate on the snorkel.....this after fixing exhaust manifold gasket too. Moral of the story....its not always the poor turbo which is first thing that comes to mind.
Thanks for this big piece of Northern Know-how. It's horses for courses in this World - the right tool/equipment/computer, for the right job.
My Wife would never agree to my installing one of those big Shenck machines in the shed at the bottom of the garden - the thing's too big to hide under your jacket and smuggle it in.
lol!
In general I agree that it's not worth the hassle. That being said, I just rebuilt my turbo some month ago, because sadly you can't get any cheap replacement turbos or cartridges for the 19j engine. For the TDIs you can get everything, but for the lumpy TD there's probably no market...and a replacement turbo goes for something like 700$, if you can even find one. So far it's still running fine...(but I only replaced the seals and the bearings and kept the compressor/turbine wheels and tried to mount them in the same position).
Hi Mike, I tend to agree with replacing a whole part; expensive but peace of mind.
If the cartridge is replaced, the condition of the waste gate, actuator and the inside of the turbo housing are unknown.
You might be able to set the pressure but the volume/pressure vs turbo rpm characteristics might be different, compared to a new turbo assembly.
Oil pressure would be important across the rev range of the engine too.
Checkout DiagnoseDan's channel of "Why this new part last one day". A new turbo was fitted by some else before the car was sent to his workshop.
To summarise, the oil feed hose was clogged with carbonised oil.
So, if replacing or overhauling a turbo, replace the feed and drain hoses, as they're not expensive and check the banjo bolt.
This is why I crank rebuilt engines on the stand to make sure oil is getting round the engine
Like I said before … free engineering class … PRICELESS 👍
Thank you sir 🙏🏻
My pleasure
Hi Mike 👋 just saying thanks again 👍👍👍🇬🇧🇬🇧🇬🇧🚌🚌🚌
No problem 👍
Mike. That's why it's better to buy an old 200Tdi exhaust manifold for a 300Tdi ? So any new Garrett T25 turbocharger will bolt up to earlier T3 housings mista ! V.
85 2.8 Isuzu td in my Landy on original turbo, it’s water cooled also I would imagine this has a big effect on life of it.
Yes my 3.9 is water cooled too
I've never been more confused about where you were from. Clearly from the UK but snow this early? Saying "dollars"(but that's not an Aussie accent)? Working on Land Rovers? I had to go check your website. You're in Quebec of all places! So bizzare haha. Hello from Newfoundland!
Ah I did ask on one off the previous videos about rebuilding turbos , I should have been more specific in meaning just cartridge replacement/ upgrades as there seems to be a few that claim 500rpm less spool due to better bearings
Hi Mike when I started driving semis about 30yrs ago I was taught to when I park to let it idle for about 5mins to let the turbo cool down and to let cooler oil circulate through it. It would make it last longer.
Yes - I wonder why on Td5 they fitted an aluminum sump - maybe to dissipate heat
@@BritannicaRestorations maybe for extra oil capacity and cooling
That was a good video Mike. One of those things that seem so obvious once you know.
I have watched a couple of rebuild videos and it seems a right faf. You have now given me the perfect excuse not to do one!
I will stick with the regular oil change a minute idle before shut down after a hard run.
Thanks 👍
Hi Mike, another great video - thanks!
Not related, but, have you ever replaced the hardened valve seats in a 2.5 petrol cylinder head yourself?
No, as I do not have the tools to cut the recess or the seats - and there are hardly any 2.25 or 2.5 petrol's here
Good video mike, I never thought about them having to be balanced
It's good practice to let your engine idle for a bit to let the oil cool down the turbo I always thought. I drive plant machinery and have a disco 2 td5 and always do that.
Mike how come we never See td5's in Canada?
I think because of the repairs - most mechanics can work on the 300Tdi but the Td5 seems a bit too 'specialized' rather like the reason they did not sell them in Africa
I've got a 3.5 RV8 in mine so no turbo. Very interesting though. 👍
Good to hear!
Great video as always! Could you post a link for the cheaper turbo that you have had good luck with. I have a 300tdi disco that is in need of a turbo replacement. Thank you for your time.
Have a look here
www.alibaba.com/showroom/err4802.html
You can buy the core already balanced👍👍👍
Yes that was the point
Funny. Just as I am about to send my turbo to be rebuilt.
i completly agree on this - not because only chinese throw cheap replacement kits on the market, its nearly imposible to get it right. anyway, some of the komments states to let turbo engine idle a while after a hard ride. isnt it useful for all engines to let it run a while in idle after a long run to balance the heat between the cylinderhead and the engineblock? surely n/a engines are not so sensitive but the heat diference between head and block cant be good. Anyone experience on this?
Very true and very interesting! Do you see many of the 2.8 tgv engines ?
Not really - I had a brand new turbo blow after 4,000km - they can only be rebuilt by specialist like Turbo Technics in the UK as the variable vanes are clear ceramic coated - mine was sent to a 'specialist' who rebuilt the turbo - only for it to explode after 2 km - ended up buying a brand new Turbo for that motor.
Lost may shirt on that - never again!
@@BritannicaRestorations quite right !!! Cheers Mike
Definitely worth a click
IF OWNERS LOOKED AFTER THEIR TURBOS WITH COMMON SENSE, BUT IT'S GOOD MONEY FOR SPECIALISTS MICHAEL.
THEIR IS A REASON WHY PYROMETERS ARE USED IN TRUCKS ETC.
REMEMBER TURBO TIMERS WERE THE RAGE IN THE PAST FOR WEEKEND WARRIOR WAGONS, NOT A BAD IDEA FOR SOME I USED TO THINK.
Yes and let the engine idle before turning off
@@BritannicaRestorations exactamundo, i don't remember you reminding your viewers to do that, hoping you would.
Just wondering Mike why the aviation chart on your closing of your videos.....do you have a connection with Aviation.
Dunno - it was an endscreen I bought
Hi Mike, why dont you get a spark eroder to get broken studs out. Just a thought.
you need a lot of work to justify the costs - maybe in a full on machine shop
Yes as you say Mike probably not worth investing in all that balancing gear just for your own turbo 😂👍🏻
Exactly!
Something I don't understand...
If both side of the shaft are balanced, the complete shaft should be balanced, not depending the the sides relative positions.
I mean, when both your front wheels are balanced, the complete axle is balanced even if you turn left or right (changing your wheel relative positions).
It should not matter what position the cold and hot side of the shaft have, as soon as they are both balanced.
The video clearly explains that they do both sides then the complete set, but I'm having difficulties to understand why...
Yes I was puzzled by this too - but as you saw, they re balanced the unit once assembled - could you get away with it at home? Dunno
@@BritannicaRestorations you made your point very clearly. It is not worth it trying to do this at home.
The price for a new cartridge make the machine a bad investment:-/
Have a good day Mike!
Cheers from Belgium :-)
For me it is not worth the risk of rebuilding - and oil leak into the intake? Could be nasty!
next time I take my dogs for a walk, I will think turbos : )
The turbo on the fourtrak engine in my Land Rover is nearly 40 years old and 300 plus thousand miles. Why has mine lasted so long when I see new cars in garages with turbo failure?
Hard to say - but I was watching a vid where they were saying turbos now spin up to 250,000 rpm - I was told ( and it may not be true) that the
Rrover turbo spins at about 30,000 rpm
Long oil change intervals dont help.
Do people change oil nowadays or just change the vehicle?
Майк добрый день, у Вас картридж турбины какой модели? И можно её номер
Я думаю это Гаррет Т250-04
У нас только, Картридж Jrone 1000-010-318 для турбины 452055-0004, 452055-5004S , Вы с такой не встречались?
, Гаррет нету.
Easy just get that taunt machine for turbo centering.
Ever broken a mobile phone screen?
After doing so, you'll see a complete screen for, say, £80 and then you'll also see just the LCD for maybe £40 and the digitiser (the touch-sensitive doodad) for about £10.
If you've just cracked the screen, you MIGHT think "I can save a few quid by only buying a replacement LCD".
No chance.
Trying to pull apart the old screen and then bodge all the bits together is a total non-starter.
I doubt anybody has ever successfully managed it.
They're just selling the repair parts, knowing that people will buy them to try and fix their phone on the cheap.
Same thing with turbochargers, IMO.
I'm sure there are workshops who DO buy the kits and rebuild turbo's but, for most people, just forget it and buy a turbo cartridge WITH A WARRANTY.
The curse of TH-cam. I used to make turbochargers and spent over half an hour commenting on this. If you make a link even to another TH-cam film you comments sometimes get tossed into the waste bin. I checked for this by leaving some corrections and clicked edit then saved the corrected piece. No "Returned error" comment, so I take everything as OK. Just return to check my comment again and see that it isn't here. I might rewrite it later tonight.
I did read your comment and was going to reply later today - I checked my 'held for review' section on my page and nothing there - I thought I was going to get taken down for using the clip of the video ( time will tell)
@@BritannicaRestorations I'm on a fixed income, I'm never going to be able to be a Patreon member. The best thing I think I can give to a content creator is a thoughtful or relevant comment, it then breaks your heart when having spent half an hour plus it just disappears. I'll try and have another go later.
Turbo cartridge - ali express ok?
Yeah, I have fitted them with no problems - fitting is the issue - clean and tight is the way to go
@@BritannicaRestorations guessing stock spec, not hybrid or alloy types from Ali?
Maybe..
Not been down that road
Everything is normal. What do you expect?
Interesting, but wouldn't you be buying a pre balanced cartridge to swop for the old unit? You wouldn't need to disassemble the compressor and impeller preserving the balance.
I do get that it could be a group of Chinese women knocking these together on a kitchen table too😁😁
I guess you pay your money and take you're choice.
To save someone (or the owner of the video) reporting for copyright and you getting kicked in the gonads for it via YouToob, put a link to the video in the description, mentioning credit to the user of their channel...or whatever most flk do when inserting other folks clips... All the best from this side of the watery divide. Dogue..
This was lifted from someone else's site that lifted it from somewhere - it there was an infringement then YT would block the publication
@@BritannicaRestorations - Ahh I see (said the blind man....) - in that case my good man: feck 'em! heheh - Very interesting clip, but too precise for my liking. That's the Germans for you though I suppose. All that is fine for high performance machinery...but, would they worry about the same attention if someone threw a landy at them? (please god don't tell me that video clip was from a Landrover video!! LOL)
I use melett turbo Cores have done for years Never any problems uk made comes already balanced with cert donot go anywhere near that cheap chinese crap in Ebay
I watched the rebuild video, Mike. Not sure I can trust anything out of the mouth of someone who talks about “unbalance”. You think a technical company would have their adverts get a simple world like “imbalance” right, wouldn’t you? 🙄
It was from Germany
That is a bit more reasonable, if it’s a second language. I thought the narrator might be American, but a lot of Europeans speak English with a bit of a US accent because of all the tv and films.