I need a new dual mass flywheel

[Jamesv6]

It's always good to have that part you want without major delay, but I confess I take a different view.

If I was a UK Renault parts dept manager, I would keep very little on the shelf for a v6. Seen a few loose their jobs because they gave in to the fitters at the back counter shouting "We always use these". If parts gather dust your job is very much on the line, and I'd have that manager out on his ear pronto. Even initial mandatory stock lines would I hope have been shifted back to their HQ.

 

[Spike]

It's always good to have that part you want without major delay, but I confess I take a different view.

If I was a UK Renault parts dept manager, I would keep very little on the shelf for a v6. Seen a few loose their jobs because they gave in to the fitters at the back counter shouting "We always use these". If parts gather dust your job is very much on the line, and I'd have that manager out on his ear pronto. Even initial mandatory stock lines would I hope have been shifted back to their HQ.

yes, i agree james. but its not the dealers that were the crux of my argument, its the fact that you have to order everything in and the fact that items like the dmf should be available ex stock from france, this would i think be reasonable.
With regards to an aftermarket flywheel, beware the fact that this is a v6 not a four or straight six, the difference, i hear you say???
the difference is in the way the crankshaft assembly is balanced, this is CRITICAL on any vee engine arrangement, also some v6 & v8 engines are externally balanced at the flywheel, the balance issue is important to stop any harmonics breaking or damaging the engine / crank assembly. i have got a v6 block here at the moment that was run out of balance, it has pulled all the threads on the bottom cradle ( bit that holds the crank and bearings) and stretched all the bolts, i an suprised it didn't break the crank. now i'm not saying this will happen to you but beware that crankshaft balance in these engines is critical and if i were going to fit a different flywheel i would recomend an engine strip and rebalance, another reason is weight, the std dmf weighs in at 13 kilos on its own, i did see a lightweight one the other day for a mazda that was less than a kilo! protoxide do one that is ultra light for the v6.
also a properly balanced engine WILL make more power.

 

[scrabble]

Spike

The Phase 1 had a single mass flywheel? I might be wrong? If so then how did they get away with it when it is the same engine?

By the way the DMF you sent the garage turned up at 3.30pm and they got to work straight away. Will be ready tomorrow.

Thanks again

 

[pturner3]

Spike is correct. The flywheel acts as a torsional vibration damper to minimise resonant harmonics. Beware of changing to a single mass, as all sorts of unwanted problems could potentially occur.
The dual mass might be considered rubbish due to its apparent reduced lifespan in this application, but I guess that is just an idiosyncrasy of the car. They are about 600 quid though!

With regards to James comments about not keeping parts on the shelf, that is acceptable. It wouldn't be reasonable to suggest that every renault dealer keeps a V6 clio flywheel on the shelf. However, it is not acceptable that there is not one or two kept available in the UK at all times, and if it has to be shipped in from France, then it should be done so immediately. It's not like it has to come by horse and carriage. 10 working days, and no delivery tracking system is still not good enough in my opinion. Thats what I had to go through to get mine.

 

[Spike]

Spike

The Phase 1 had a single mass flywheel? I might be wrong? If so then how did they get away with it when it is the same engine?

Thanks again

if the engine was designed and balanced for it in the first place i cannot forsee any problems, but what i'm on about is changing from a mass of 13 kilos down to say 3 kilos without factoring balance into the argument. each engine is different, and i would expect them all to be balanced individually at the factory, even if it were to a nominal value precalculated for rods and pistons to production tolerances.
the sort of weight difference we are talking of here is around 10 grammes, think about how a car drives when a wheel weight comes off, its all over the place when the harmonic builds up around 65mph, thats about 500 rpm ish! the engine is in excess of 10 times that, with a 13 KILO WEIGHT swinging round, as has allready been said the POTENTIAL for a problem is great.

 

[scrabble]

Ok

The clutch and dual mass flywheel has been changed. All seems good and the clutch bite and feel is really good. Thanks again to Spike for supplying me with a dual mass flywheel.

Kev

 

[Jim Green]

Scrabble - Just picked up on this post, how did the job go.......... ????

 

[scrabble]

Hi mate

Job went well. No probs in the end apart from the DMF which was worn and no good. They also changed all the bonnet catch and mechanism free of charge as it was a recall. Check to make sure your car has had it done. Mine was done at Renault in Liphook in West Sussex.

 

[Jim Green]

I have a receipt in my folder for a new "Bonnet Catch + Fitting" by Renault, so I'm guessing mines been done, but don't know what the reason for the recall was for, so don't know what to look for :rollseyes: :rollseyes:

Have to make a point of catching up soon, now the weather is getting better.

Jim