[Thor1950]

I have to disagree with Gems ere.

I did a bit of research before i did mine and roughly this is what i found:

The DMF was used in place of a conventional solid wheel because of the extra cylinder added to land rovers from 99. The TD5 lump fires pulses that without the use of a DMF can cause failings in other parts, gearbox input shaft and bearings and also the clutch plate.

I can't help but think that many many ££££'s were put into designing something to help with the low down vibrations and dampening of a 5 cylinder engine and then Britpart of all people should come along and say they can make it better.

Thats why i went for a new OEM DMF.

Thank you Ginge the is exactly what I read also. :tea:

 

[Tazz070299]

Well I just got a price from the local independent of £720.

Looks like the wife and daughter will be having a lean Christmas; one chicken leg and a cracker between them.

 

[Nigel-S]

Well I just got a price from the local independent of £720

Why not do it yourself and save £600? even if you've never done it before a Haynes manual will sort you out (though you'll take out more than you need to). I couldn't bring myself to pay somebody £600 for a days work, but I'm a tight old git

 

[GINGE]

i know why they use them on vehicles,and more so on odd cylinder engines.but they have been using solid flywheels for a very long time with no issue's.so why change now.just another expensive gimmick to go wrong.which they do and you have to replace them,unlike a solid flywheel which can be re faced.

Im sure i read somewhere that LR development did a test with the regular solid flywheel and it shook itself to bits over a period of time. Maybe that time was unacceptable, compared to some other variable. Im not sure

Usually I'm with you "why change a winning formula" i just can't help thinking there must have been a reason. Sometimes even the best laid inventions can be improved upon.

 

[landowner]

Usually I'm with you "why change a winning formula" i just can't help thinking there must have been a reason. Sometimes even the best laid inventions can be improved upon.

A Dual Mass Flywheel is basically two components (the primary & secondary mass) linked together by a damping mechanism within the secondary mass and located by the central carrier bearing. The damping mechanism is there to absorb the torque loads of the crankshaft and to help deliver a smooth transfer to the road wheels via the clutch.

As time passes and the vehicle's mileage increases the damping mechanism softens and weakens. As the mileage increases the damping mechanism becomes weaker to the point where the movement between the primary and secondary masses becomes excessive. When this happens the flywheel tends to vibrate or rattle when driving.

 

[Tazz070299]

Why not do it yourself and save £600? even if you've never done it before a Haynes manual will sort you out (though you'll take out more than you need to). I couldn't bring myself to pay somebody £600 for a days work, but I'm a tight old git

Most jobs I can do, but whilst my neighbours are tolerant, the prospect of changing a clutch by the roadside is probably a step too far. I'll also need to hire an engine crane to lift the gear box etc. So sadly it looks like paying someone else.

 

[GINGE]

A Dual Mass Flywheel is basically two components (the primary & secondary mass) linked together by a damping mechanism within the secondary mass and located by the central carrier bearing. The damping mechanism is there to absorb the torque loads of the crankshaft and to help deliver a smooth transfer to the road wheels via the clutch.

As time passes and the vehicle's mileage increases the damping mechanism softens and weakens. As the mileage increases the damping mechanism becomes weaker to the point where the movement between the primary and secondary masses becomes excessive. When this happens the flywheel tends to vibrate or rattle when driving.

True.

Thats what i mean, LR obviously felt that the time it took for the solid flywheel to annihilate its self compared to the DM flywheel annihilating itself was big enough for them to warrant fitting one.

Ater all if it didn't need one, why waste the money developing it when they sure as hell had a million solid ones in the cupboard?

 

[Thor1950]

happens in odd number of cylinders, something about setting vibration in the crank shaft. new 3 cylinder motors do the same as 5 cylinders

 

[landowner]

True.

Thats what i mean, LR obviously felt that the time it took for the solid flywheel to annihilate its self compared to the DM flywheel annihilating itself was big enough for them to warrant fitting one.

Ater all if it didn't need one, why waste the money developing it when they sure as hell had a million solid ones in the cupboard?

My brothers Audi diesel has one and its bloody awful.

If you don't slip the clutch enough setting off, there is an almighty bang and it stalls, heap o crap

 

[Thor1950]

This explains the vibration thing in TD5 and other odd number cylinder engines

Straight-five engine - Wikipedia, the free encyclopedia

 

[landowner]

This explains the vibration thing in TD5 and other odd number cylinder engines

Straight-five engine - Wikipedia, the free encyclopedia

My dad drove a Chinese six ERF with drawbar trailer in the fifties and it had a 5 cylinder Gardner diesel engine in it.

It ran like a sewing machine

 

[GINGE]

My brothers Audi diesel has one and its bloody awful.

If you don't slip the clutch enough setting off, there is an almighty bang and it stalls, heap o crap

Mine too.

I fink me and gems basically have the same cars, TD5's and Audis. :lol:

This explains the vibration thing in TD5 and other odd number cylinder engines

Straight-five engine - Wikipedia, the free encyclopedia

Interesting read that, i feel edumacated i duz.

 

[Tazz070299]

Mine too.

I fink me and gems basically have the same cars, TD5's and Audis. :lol:



Interesting read that, i feel edumacated i duz.

I too have an Audi

 

[gemsdad]

My brothers Audi diesel has one and its bloody awful.

If you don't slip the clutch enough setting off, there is an almighty bang and it stalls, heap o crap

that is one of the reasons i had to have mine done on the audi,plus if he does not get it changed it WILL EXPLODE,therefore it will wreck the gearbox as well.

 

[gemsdad]

I too have an Audi

i dont anymore,sold mine to my daughters partner.at a massive family discount.he got a right bargain.

 

[gemsdad]

My dad drove a Chinese six ERF with drawbar trailer in the fifties and it had a 5 cylinder Gardner diesel engine in it.

It ran like a sewing machine

thats because GARDNER engines were the best made engines in the world at that time.

 

[Thor1950]

Mine too.

I fink me and gems basically have the same cars, TD5's and Audis. :lol:



Interesting read that, i feel edumacated i duz.

The Yank does know a thing or two Thanks, glad you enjoyed it

 

[jamesmartin]

that is one of the reasons i had to have mine done on the audi,plus if he does not get it changed it WILL EXPLODE,therefore it will wreck the gearbox as well.

?

 

[gemsdad]

The Yank does know a thing or two Thanks, glad you enjoyed it

no you just know how to use a search button,is all.:rofl:

 

[gemsdad]

?

yes james,if the dmf is failing it will start to break up as mine did,big chunk came of it and that is what caused the imbalance in my engine.there were cracks appearing all round the outside of it.as the garage pointed out,if left for much longer it would have disintegrated and exploded causing major gearbox damage.