TD5 Dual mass flywheel??

[crump]

I am at the moment in the process of having my Flywheel replaced as a result of searching for a noise in the gearbox it was found to be worn outside the recomended parameters.(approx 30mm play) I have done some searching on the topic and it seems that this problem can occur anywhere from 30000kms onwards.(Mine has done 70000kms).The answer I cant find is "What causes it to wear?" Can I expect to be dropping the box and replacing the $800 flywheel every 70000kms if I retain my current driving style.My vehicle has never towed a load beside a couple of wheelie bins to the tip,only been driven in traffic 2-3 times and basically if it gets started will do a minimum of 300-400km trip down the hiway.

[Blknight.aus]

could be....

once they start to go they last for ages (usually) and will survive with a lot more play than youve got.

It can be replaced with a single mass unit but other than race type applications IVe not heard anything advantageous to doing so other than the flywheel wont wear out and can be machined.

I suspect that, based on the few reports from people who have fitted them, that they will be harder on the front end of the gearbox than the dual mass unit and you might find yourself replacing the box more often but at this stage as the only people I know that have done this have put second hand boxes (the original box) back onto the new flywheel/clutch I'm only speculating.

Whats even more frustrating about it is if you happen to get a good one that lasts the life of your friction plate when you goto replace the friction plate you cant get the bugger ground so new clutch=new flywheel as well.

[justinc]

could be....

once they start to go they last for ages (usually) and will survive with a lot more play than youve got.

It can be replaced with a single mass unit but other than race type applications IVe not heard anything advantageous to doing so other than the flywheel wont wear out and can be machined.

I suspect that, based on the few reports from people who have fitted them, that they will be harder on the front end of the gearbox than the dual mass unit and you might find yourself replacing the box more often but at this stage as the only people I know that have done this have put second hand boxes (the original box) back onto the new flywheel/clutch I'm only speculating.

Whats even more frustrating about it is if you happen to get a good one that lasts the life of your friction plate when you goto replace the friction plate you cant get the bugger ground so new clutch=new flywheel as well.

Still a hell of a lot cheaper than the Nissan ones in the Navarra etc, which need replacing with the clutch anywhere down to 45K:mad:

LR parts aren't all that horrific anymore:)

JC

[Blknight.aus]

LR parts never were. well mostly...

[justinc]

LR parts never were. well mostly...

Well WE know that Dave, but until recently try convincing the Nissan and Toymota drivers that!:p
Hows your dad getting on with the 'box?

JC

[crump]

So it doesnt need replacing at this amount of wear, but I may as well while we are in there.In the interest of reliability then, I should figure on replacing the clutch and flywheel every 80-100000kms, even if asymptomatic, as in this case, we were loking for something else.The clutch was basically "as new", but is the same old story, may as well while you have the box out.:(

[Bundalene]

How do you tell how much play the DM Flywheel has without dropping the box?

I had to replace a dry - noisey crank shaft pinion bush at 180,000kms on the Disco and had the flywheel checked at the same time. I was able to rotate it about 2cm by hand (1cm in either direction) and was told by a Land Rover whizz that this was quite normal - within spec. We have done just under 70,000km since without a problem.

Erich.

[justinc]

I would say that all the ones I have replaced haven't had any more than that amount of rotataional movement, but that they were 'rocking' which means the centre boss is worn excessively.

JC

[Bundalene]

In my case there was only rotational movement,

Erich.

[Graeme]

How do you tell how much play the DM Flywheel has without dropping the box?
I haven't tried it yet but I suspect removing the starter motor would give enough access to the pressure plate side of the flywheel.

[Blknight.aus]

Well WE know that Dave, but until recently try convincing the Nissan and Toymota drivers that!:p
Hows your dad getting on with the 'box?

JC

interesting, it seems like it might have been a transitional noise from the front of the engine as the power steering pump is shot. Neither problem by itself gives a totally satisfatory answer to the symptoms I've had described to me.



So it doesnt need replacing at this amount of wear, but I may as well while we are in there.In the interest of reliability then, I should figure on replacing the clutch and flywheel every 80-100000kms, even if asymptomatic, as in this case, we were loking for something else.The clutch was basically "as new", but is the same old story, may as well while you have the box out.:(

Mines gotten to about 130K Km before its become a big problem and its now at 160ish Kkm and will probabley stay in till 200K Km when I pull the engine to do the clutch, mounts, radiator and a few other bits n pieces. my book says if the clutch is coming off so does the flywheel.


How do you tell how much play the DM Flywheel has without dropping the box?

I had to replace a dry - noisey crank shaft pinion bush at 180,000kms on the Disco and had the flywheel checked at the same time. I was able to rotate it about 2cm by hand (1cm in either direction) and was told by a Land Rover whizz that this was quite normal - within spec. We have done just under 70,000km since without a problem.

Erich.

10mm either side of center is about the nominal movement for the flywheel the best way I have been able to work out how to check the movement is one of 2 ways

first off wind the engine by hand up against the gearbox in gear till you just get contact on the gears and then see how far you can twist it.

second is the same but you go in via starter motor and measure it up off of the ring gear teeth.

Not super accurate but it will give you a rough idea.