A very impressive clear video, thanks. Several interesting comments below, for example more moving parts to wear out and more expense for the customer.
i had a skoda octavia with dmf that failed, i replaced it with single mass kit, there was no difference to my driving experience at all. great video though
It's also another part that wears out quickly, can't be resurfaced, and it expensive to replace. When these things wear out, they're absolutely terrible to drive.
Yeah but on the other side of the coin, you can go aftermarket, and get a DMF built to outlast the car, which i happen to have done to 2 cars, did it to a DM02 2.0 Tdi she did 350,000 miles on the DMF and it saw way to many clutches My BKD Audi has an aftermarket job, its now on its 4th clutch and last time the clutch was done, the DMF was only ezhibiting about 4mm of movement, WELL WELL within tollerance and easy do 220,000 MORE miles. So thats half a million miles on 2 DMFs............ And its cheaper yes, way more money to buy, over a grand for the audi, but it saves me £400 to 600 every time the clutch is done.
@@AnIdiotAboard_when is time to replace it? I hear some noises when idle, but no vibrations in higher rpm... what dmf are best? The car 9nly have 180.000 km and seems the dfm is wearing and the original clutch works perfect...
Or, you could simplify things a lot by using single-mass flywheels with bigger counterweights. The worst vibrations are attenuated with great effect, and the extra cost and complexity of a dual-mass flywheel can be done away with.
let's create more of these low-life duration aftermarket consumable. And let's keep them more and more complex to prevent DIY maintenance and long-term servicing, a possible thing...
Would be much easier to use a hydraulic fliuid dampner harmonic balancer . Would be cheaper to replace as well as less moving parts. I guess an enginers job is to over complicate everything.
On a V8 engine, a crossplane crank is not much worse than a flat-plane V8. But a four-stroke crossplane inline 4 is terrible from a torsional stabdpoint.
Sounds good but at what cost to reliability and ownership woes, German car manufactures are digging big holes for themselves with massive quality issues, is it backed by a 200k kilometre factory warranty?
because EU wanted less emissions, and manufacturers responded with smaller but more powerful engines for bigger and heavier cars (compare engine/weight/power/co2 in Golf 4 1.9 TDI and Golf 7 1.6TDI)... and voila.. shit happens... if we had same amount of emissions as EURO 3 or 4 and engine sizes around 2-2.5l per block (I4 or I/V6) there wouldn't be a need for higher power for normal cars, only for performance oriented versions.
Does tuning an engine reduces the lifespan of this flywheel since the curved radii of the bearing tracks are now not in sync with the torque profile? Or does it just make a less smoother ride because the harmonic resonance frequency is changed?
Uebung macht den Meister, eh? Huh, I think the Master's Lost his Marbles . Technology because we can( we think) and NoT because we need to.... all this CO2 Emissions rubbish , etc. Just a religion. pity I subscribed to VW & Audi decades ago - been disenfranchised by them - and they don't like to hear it when they call you after a Dealer Service. HOWEVER it is good to see and know about these things -just that sometimes folk HAVE TO BE TOLD !!!!
This garbage cost me $5,500 dollars because 2 different mechanics could not figure out the random jarring vibration coming from chassis of car during deceleration. I replaced all my bushings on car to find out its this piece of s%*%. I ordered a single mass performance to replace it. I figured it out from research on Internet. Can't belive dealership mechanics couldnt figure it out. If you own a G37 with 6MT you better get rid of that DMF ASAP!
My Fiat Punto twin air is fitted with one and i learned of this last week. This thing failed and dammaged the clutch an shaft.set me back €1800,- Only driven 43000 km and bought this car new😡
welllll, I'm no longer buying the 2019 Jetta for that reason. boring ass corolla for me. until they figure this shit out I'm not buying any of that crap.
Great educational video however ... all of these problems and their mechanical solutions disappear in an electric vehicle. This is already obsolete mechanical technology. It had a very short life and utility. 😄
Mercedes in f1 gets 52%-55% thermal efficiency and getting 65% is not that impossible (CCGT could get 80%) Plus with an engine you can do the assholery of making 140 decibels of noise, you cant do that on EV
@@renacimientoargentino7515 You are so right, "with an engine you can do the 'assholery' of making 140 decibels of noise" ... and who doesn't want to be an asshole? 😂😂😂😂😂😂😂😂😂
Just because the ICE is at a disadvantage here compared to EV, it doesn't mean that people should stop try improving what we have and throw it away. There is a ton of cases where thqt ICE is still favourable. Tell that to the construction, mining, drilling operators. Tesla is good to own in california to drive to In-N-Out, but the world is bigger than that.
@@alexgray1905 What's the issue of just driving climate change? is not that bad, some places will benefit, some others will perish, many places that are desert will become forest and grasslands (higher avg temp=more evaporation and humidity=more rainfall) Places that will perish are places like australia, or namibia, but i live in a place that will benefit from it, and puttin australia into a burning fire in exchange of having more rainy days here, is a sacrifice i'm willing to do.
A very impressive clear video, thanks. Several interesting comments below, for example more moving parts to wear out and more expense for the customer.
i had a skoda octavia with dmf that failed, i replaced it with single mass kit, there was no difference to my driving experience at all. great video though
It's also another part that wears out quickly, can't be resurfaced, and it expensive to replace. When these things wear out, they're absolutely terrible to drive.
Yeah but on the other side of the coin, you can go aftermarket, and get a DMF built to outlast the car, which i happen to have done to 2 cars, did it to a DM02 2.0 Tdi she did 350,000 miles on the DMF and it saw way to many clutches
My BKD Audi has an aftermarket job, its now on its 4th clutch and last time the clutch was done, the DMF was only ezhibiting about 4mm of movement, WELL WELL within tollerance and easy do 220,000 MORE miles.
So thats half a million miles on 2 DMFs............ And its cheaper yes, way more money to buy, over a grand for the audi, but it saves me £400 to 600 every time the clutch is done.
@@AnIdiotAboard_when is time to replace it? I hear some noises when idle, but no vibrations in higher rpm... what dmf are best? The car 9nly have 180.000 km and seems the dfm is wearing and the original clutch works perfect...
SSSUPERRRR--BRAVO,VERY EKSSELENT
Or, you could simplify things a lot by using single-mass flywheels with bigger counterweights. The worst vibrations are attenuated with great effect, and the extra cost and complexity of a dual-mass flywheel can be done away with.
let's create more of these low-life duration aftermarket consumable. And let's keep them more and more complex to prevent DIY maintenance and long-term servicing, a possible thing...
yea next is the triple mass flywheel
Thanks for sharing
Great vid as usual thanks for sharing
Would be much easier to use a hydraulic fliuid dampner harmonic balancer . Would be cheaper to replace as well as less moving parts. I guess an enginers job is to over complicate everything.
can I get a link to the english translation of ssp-142?
This video makes assurance that it is normal to hear some noise when shutting engine off...because of the pendulums
That's right. That noise you hear is ”normal”. It's not the timing chains at all.
Great! More parts to fail.
Can DMF's be repaired, are internal parts available??
Well explained 👏🏻👏🏻👏🏻
What's the price of that thing? Is it even possible to replace a solid flywheel with dmf with cpa of do they install it only in new cars?
Some manufacturers may specialise. Best to search online!
Great video, reminds me of my school days.
Sorry but more moving parts, more wear components, more expense.
Just drive it like you stole it.
Does anyone know if cross-plane cranks have the same vibes problem?
Yes, although all cranks still have 4-cycles, only 1 of which is the power cycle, so you still have torsional vibration.
On a V8 engine, a crossplane crank is not much worse than a flat-plane V8. But a four-stroke crossplane inline 4 is terrible from a torsional stabdpoint.
Some one with some noises on cold mornings, on this type of flywheel?
I have soles noises on cold morning on this type of flywheel. Q5 v6 tdi
@@gogetagogeta7452 me too !!!....but i change whit Dual-mass !!! never use another whit pendulum absorber !!! :((( beahhh
Hahahaha, how long will that wobbly thing last pal? You do realize some of us like to dragrace twice before having to replace our flywheels right?
then use single mass.but these new diesels do make alot of vibrations without dmf. im keeping my 91 mod toyota 4 runner until it falls apart xD
is still good use old stock new dual mass flywheel?
It depends on your drive behaviour if your drive in city a dual mass is a must but if you drive across the country a single mass is an option
Sounds good but at what cost to reliability and ownership woes, German car manufactures are digging big holes for themselves with massive quality issues, is it backed by a 200k kilometre factory warranty?
make big engine with a lot of cylinder is more fun
correct
I am curious why this is a problem NOW after decades running cars without them ?
because EU wanted less emissions, and manufacturers responded with smaller but more powerful engines for bigger and heavier cars (compare engine/weight/power/co2 in Golf 4 1.9 TDI and Golf 7 1.6TDI)... and voila.. shit happens... if we had same amount of emissions as EURO 3 or 4 and engine sizes around 2-2.5l per block (I4 or I/V6) there wouldn't be a need for higher power for normal cars, only for performance oriented versions.
How many cars have inline 4 that makes V6 or even V8 power with more low end torque decades ago?
Maybe someone forgot to tipped the mechadude.
nice theory, great idea....terrible reliability and expensive replacement
No chance of them rattling then ,last 100000km guide VW dream car gets to end of guarantee falls to bits on side of road
exc video.. the aisin 8speed auto trans are junk
I dont need useless "technology". Give me V8.
To much expensive for replace to a used car.
coulda just said CPA after the first one......
Same shitt
Does tuning an engine reduces the lifespan of this flywheel since the curved radii of the bearing tracks are now not in sync with the torque profile? Or does it just make a less smoother ride because the harmonic resonance frequency is changed?
torque profile is inherent to the mechanical engine design
Whe had a flying wheel for over 100 years and every of them still work perfect. I dont know what idiot put that sprin shit in "modern" car.
all I have to say dual-mass flywheel with pendulum absorbers
Uebung macht den Meister, eh? Huh, I think the Master's Lost his Marbles . Technology because we can( we think) and NoT because we need to.... all this CO2 Emissions rubbish , etc. Just a religion. pity I subscribed to VW & Audi decades ago - been disenfranchised by them - and they don't like to hear it when they call you after a Dealer Service.
HOWEVER it is good to see and know about these things -just that sometimes folk HAVE TO BE TOLD !!!!
normal DMF brake down quik this prob wil die even sooner, fucking 58 k KM and my dmf is broken ( bmw/mini 1.5 turbo ) fuck me
This garbage cost me $5,500 dollars because 2 different mechanics could not figure out the random jarring vibration coming from chassis of car during deceleration. I replaced all my bushings on car to find out its this piece of s%*%. I ordered a single mass performance to replace it. I figured it out from research on Internet. Can't belive dealership mechanics couldnt figure it out. If you own a G37 with 6MT you better get rid of that DMF ASAP!
lmao that's how noisy this flywheel is, someone might think their car is broken :)))
in gerneral dualmass is shitt and always fails so use singelmass :)
I shifted from dual to single. Vibration on low rpm is horrendous
My new caddy just started making noise 😢.
Single masse won't work too.
Gotta keep replacing it every 100 thousand km... Awful.
@@kdeep1690 go with a heavier flywheel
@@AmritGrewal31 loss of pickup and fuel in that case .....
moreover OEMs make very specific fit flywheels ... So only oem type works
Single-mass with pendulum absorbers is the best of both worlds IMO. Low vibration of a dual-mass flywheel but without the complexity.
Dual mass is crap , they break and don't last like a single mass flywheel. They only good when new lol.
wow, a high-tech rattling double-mass flywheel... failure at low mileage guaranteed
My Fiat Punto twin air is fitted with one and i learned of this last week. This thing failed and dammaged the clutch an shaft.set me back €1800,-
Only driven 43000 km and bought this car new😡
@@dannykievit7040 i'm sorry to hear that, but things like this will happen more and more in the automobile industry...
75k 2.0tdi caddy, started Making noises this morning... Ugh
@@zizogaucho9035 BMW 320d, 210000km, changing it in a week even though it still works, but sometimes a bit jerky at first gear hence the change
@@Xzizia92 it got to a point where i regretted owning a diesel.
welllll, I'm no longer buying the 2019 Jetta for that reason. boring ass corolla for me. until they figure this shit out I'm not buying any of that crap.
rip that crap out and go single mass. it's just another component that can fail. the best part is no part
Great educational video however ... all of these problems and their mechanical solutions disappear in an electric vehicle. This is already obsolete mechanical technology. It had a very short life and utility. 😄
Mercedes in f1 gets 52%-55% thermal efficiency and getting 65% is not that impossible (CCGT could get 80%)
Plus with an engine you can do the assholery of making 140 decibels of noise, you cant do that on EV
@@renacimientoargentino7515 You are so right, "with an engine you can do the 'assholery' of making 140 decibels of noise" ... and who doesn't want to be an asshole? 😂😂😂😂😂😂😂😂😂
Just because the ICE is at a disadvantage here compared to EV, it doesn't mean that people should stop try improving what we have and throw it away. There is a ton of cases where thqt ICE is still favourable. Tell that to the construction, mining, drilling operators. Tesla is good to own in california to drive to In-N-Out, but the world is bigger than that.
@@josephm.6453 No ... ICE just throw it away wherever we can! We don't have another planet to use.
@@alexgray1905 What's the issue of just driving climate change? is not that bad, some places will benefit, some others will perish, many places that are desert will become forest and grasslands (higher avg temp=more evaporation and humidity=more rainfall)
Places that will perish are places like australia, or namibia, but i live in a place that will benefit from it, and puttin australia into a burning fire in exchange of having more rainy days here, is a sacrifice i'm willing to do.
सबसे बेकार होता है ये
dual mass flywheels are a total failure.
Ed kennedy agreed