Dualmass Flywheel PROBLEMS! - Alfa Romeo Forum
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(Post Link) post #1 of 5 Old 28-04-15 Thread Starter
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Thumbs Down Dualmass Flywheel PROBLEMS!

Hi everyone, new to the site and liking what i see may i add.

Anyway to the point, i got my first alfa about 6 month back (alfa GT) and fell in love with it, no problems up untill now

Anyway, drive shaft snapped one morning... thought can't complain had the car 6 month fault free. So had it towed to the garage and had new one fitted (not cheap)

About a month further down the line, i started to feel a slight vibration, but only when accelerating.. so back to the garage for another inspection....
CV Joint gone, so replaced with whole new bottom arm..

Didnt cure it but obviously needed doing... had it checked yet again, told it may be wheel balancing... so had that done, also tracking...
Yup you guessed it, still there...

At this point im running out of ideas, had another inspection to try and find the fault, checked everything, the drive shafts, suspension, all bushes including engine mounts, wheel bearing, balancing and tyres.

Only thing i can think now is the dual mass flywheel, im hoping and praying someone can spread some light on this, as money is tight at the min and a new flywheel is not the cheapest of things (considering single/solid conversion)

Someone please tell me ive overlooked something as at my witts end
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The CV joint is part of the drive shaft so I'm not sure why they replaced the bottom arm ! Probably the ball joint showing wear?

Anyway, I'm sure I speak for lots of 156/ GT owners when I say vibration under acceleration is a very common complaint...
Mine does it too, and is much better than it used to be but it's still there, sometimes worse than others. Chief suspect is the inner drive shaft joints (particularly if you have the 'tripod' & cup type) but you say the shafts have been done.
I think the DMF is a strong possibility but if you have no other signs of failure, like a metallic rattle or a strange feeling to the clutch pedal, it should be ok.
Is your car a diesel? Because my 156 is and I'm convinced part of the vibration is coming from a less-than-perfect injector or something. Is the MCSF warning coming up?
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Have your driveshafts inspected by a specialist, sounds like either the other shaft has gone, or the replaced one is faulty. Was it brand new from a dealer or a reconditioned one from someone like J&R ? There are 2 shafts, and each one has 2 cv joints. Does not sound like flywheel.
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Spiders and cups if its a horrid vibration probably. Awful vibration esp in 5th and 6th under acceleration.

Alfa Shop have some good prices, its not a cheap fix tho.
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(Post Link) post #5 of 5 Old 04-05-15 Thread Starter
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Thanks for the reply people, yes the car is diesel mate. I have tried having the drive shaft replaced as the part was under warranty, only to hit a new problem. The drive shaft will not come out of the gearbox even with 2 people with 2 big bars behind the cup of the driveshaft. The mechanics are telling me the inner bearing the drive shaft sits on in the gearbox may have gone and welded to the driveshaft making it a big job to get out. But they have warned me that if they pull the bearing out and it turns out to be the diff, that it will drop down out of alignment as basically the driveshafts holding it in place and would also explain the massive vibrations and why it wouldn't come out.

Have you guys ever come across this?

Anyway I'm currently thinking of buying a used gearbox, flywheel n clutch off eBay, having the gearbox reconditioned and fit the best dad and clutch.

Also if I can afford it a solid flywheel conversion?
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dualmass , flywheel , problems

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