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View Full Version : Dual MAss Fly Wheel or Solid Mass Fly Wheel



Y90USF
03-02-2010, 04:38 AM
hey guys its time to buy a flywheel as the one i have is knakered and the car is going in for a rear crankshaft seal which means they will be taking it out anyway.....but i am stuck between replacing the fly wheel like for like or should i get a solid mass flywheel??

what are the advantages and disadvantages would appreciate any advice.

veedub76
03-02-2010, 11:22 AM
This topic has had a lot of coverage, best take a look throught the previous posts as i doubt you'll get many answers!

Single mass you may get more vibration, the dual mass is not as expensive as people make out unless you take it to a dealer. The passat i'm about to buy has had the flywheel and clutch kit replaced and itcost just over £300 from Euro car parts, labour was about £150. so not too bad.

The idea of the dual mass is i think to balance out the vibration being a diesel engine. Check out Euro carparts for prices.

:D

vwtdi130pd
03-02-2010, 05:23 PM
stick with a duel mass one you will kick yourself if you put a solid one in and it vibrates like mad £300 from eurocarparts is good try out tps you should get a good deal there to

venetian-red
03-02-2010, 08:27 PM
Similar query; for towing (car/car trailer), are there any advantages of any type of unit over the other?

vwcabriolet1971
03-02-2010, 08:32 PM
Following is from previous post :-

I,ve fairly recently had a DMF clutch replaced on my wife's 04 Polo ( 1.9 PD TDI- 82,000 miles) . One day the gearchange was normal and the next day, the only to drive the car was to start the engine with 2nd gear already selected . Normal gear selection with the engine running was impossible. Had to drive 7 miles in 2nd gear to my favourite mechanic .
When the clutch & flywheel were removed it was found that the clutch pressure plate was boken into 3 pieces and the flywheel had hairline cracks . I was amazed that one day the car would drive normally and the next day the clutch/DMF could be in this condition without any warning signs. The old solid flywheel type would normally give some indication of impending doom ,i.e. slipping, noise etc .
The DMF friction plate was worn down on side to the rivet heads. A complete OEM quality new clutch DMF kit was about £280 (Euro car parts) . The dealer price for just the flywheel was over £400 !
It occurs to me that that the DMF design will operate at a higher temperature than a solid flywheel type as there is not the large mass of the solid flywheel to absorb the heat. The smaller mass of the DMF type flywheel friction plate will obviously heat up more quickly . Also it's much easier to balance a solid flywheel than a DMF type. It doesn't help when driving schools teach pupils to ride the clutch so that they are ready for an immediate getaway. I always snick into neutral and take foot off the clutch when comming to a stop. Didn't need any clutch work on my 142,000 MK4 Golf.
If I had the choice on a new car I would choose the old style solid flywheel.

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