Welding dual mass flywheel

[poseidon]

Hi,

I have seen on other forums that many drivers simply weld the two DMF plates together. This converts DMF to traditional single mass flywheel and elimintes all the problems with DMF.

Apaprently there is more vibration in the 1000-1500rpm speed range.
I would tend to think that this is overall good solution to save me from replacing DMF every 2 years.

I greately apreciate reply frorm anyone who has experince with a car with welded DMF.

Regards,
Pose

 

[LostKiwi]

It is if you want to trash your engine.
The duallass flywheel performs many of the same tasks as an harmonic balancer.

 

[Craiglxviii]

It IS a harmonic balancer.

But a DMF is unnecessary so OPi suggest just removing the weights and springs altogether. Lighter flywheel must be more efficient and better performing too.

 

[Botus]

my brother thought removing this on his transit was a good idea, he regretted it,
my other brother on his Renault /Vauxhall van removed it and notices its not such a nice vehicle to drive anymore,
and a mate kept driving his insignia for 1k miles with a trashed DFM in the end the crank pulley the other end fell off (due to the vibrations), a new one was fitted, alongside a new DMF, it fell off again and needed a short engine

I thought all three were stupid idiots and lucky not to have a two piece crankshaft each

 

[Steve@Avantgarde]

Weld them together and you will rip the end of the crankshaft off.

Its there as a vibration damper to transfer the high torque of a CDI engine through to the transmission. If its not there, there is no dampening effect to the crank, and eventually, it will either rumble, knock or snap off entirely but the result will be the same, goodbye engine.

 

[poseidon]

Hi,

Eurocar parts offer single mass flywheel conversion kit.

https://www.eurocarparts.com/search/633110010


"The Solid Flywheel Conversion Kit has been developed to replace the Dual Mass Flywheel which suffers from such high failure rates. Because the Dual Mass is being replaced by a single Mass Flywheel you can expect greater durability and when the clutch is due for replacement there is no need to change the Flywheel so savings in the long term can be vast. Each kit will come with solid Flywheel, Clutch kit, bolts & fork where needed. Some vehicles that Conversion kits are fitted to also require a concentric slave cylinder which needs to be purchased separately."

This seems to include a different friction plate, presumably with some spring dampers . That might be a better solution to welding DMF.

Regards,

Pose.

 

[John Laidlaw]

Or.....get shot of the car and buy one with an auto?

 

[LostKiwi]

If the kit doesn't include an harmonic balancer walk away.

 

[Botus]

fit one and let us know how long the engine lasts and how horrid it was to drive before it broke...
that way we can say told you so and you can say you were right

 

[umblecumbuz]

Where's TurboPete when you want him?

 

[bembo449]

buy an auto gets my vote on this , though I must say ive had several cars with SMF's fitted and never had a failure or problem

 

[Taffy7hfa]

Strange thread, is it a wind up ? "many drivers simply weld the two DMF plates together" yeah of course.. that's the obvious thing to do really, cant believe I didn't think of it

 

[Botus]

Strange thread, is it a wind up ? "many drivers simply weld the two DMF plates together" yeah of course.. that's the obvious thing to do really, cant believe I didn't think of it

if it was a ford... they only last 10 minutes before you need a new DMF

 

[bembo449]

Strange thread, is it a wind up ? "many drivers simply weld the two DMF plates together" yeah of course.. that's the obvious thing to do really, cant believe I didn't think of it

when it comes to saving money , some folk take the 'McDonalds' route pal

 

[Craiglxviii]

Hi,

Eurocar parts offer single mass flywheel conversion kit.

https://www.eurocarparts.com/search/633110010


"The Solid Flywheel Conversion Kit has been developed to replace the Dual Mass Flywheel which suffers from such high failure rates. Because the Dual Mass is being replaced by a single Mass Flywheel you can expect greater durability and when the clutch is due for replacement there is no need to change the Flywheel so savings in the long term can be vast. Each kit will come with solid Flywheel, Clutch kit, bolts & fork where needed. Some vehicles that Conversion kits are fitted to also require a concentric slave cylinder which needs to be purchased separately."

This seems to include a different friction plate, presumably with some spring dampers . That might be a better solution to welding DMF.

Regards,

Pose.

If it’s got spring dampers... what do you think a dual mass flywheel IS, exactly?

 

[EmilysDad]

If it’s got spring dampers... what do you think a dual mass flywheel IS, exactly?

That's a dismissive reply ..... I understand exactly what a DMF is but also the relevance of the spring dampers (in the friction plate) in the kit.

 

[Craiglxviii]

That's a dismissive reply ..... I understand exactly what a DMF is but also the relevance of the spring dampers (in the friction plate) in the kit.

Not dismissive. I think the OP is running either a big wind up, or is both very badly informed and wilfully ignorant and wishing to remain so. I’m just interested to know why having spring dampers is fine for one side of a clutch assembly but is apparently against God & nature for the other.

 

[EmilysDad]

..... but is apparently against God & nature for the other.

Even If the pressure plate fails it's only a few quid to replace .... obviously labour excluded .... but flywheels are somewhat more expensive & it seems that a DMF is more like to fail.

 

[Westheath]

 

[poseidon]

Thank you all very much for the replies.

I am feeling much annoyed, and frankly I am upset. I have to replace dual mass flywheel on this car for the 4th time. The car has done only 109k miles.

Pose.