As far as I know, it's there to cancel out harmonics in the crankshaft. Without it working properly your engine will be subject to vibrations it could do without. Short term not good, long term v bad.
did some more research and found out what you said about the vibrations. problem is, i desperately need it for work. i also saw what damage happens to the pulley spokes if you leave it in situ for a while- the inner lugs chew into them. eventually that would lead to catastrophic failure. i could live with the noise for a couple of days until i get the parts but i dont know how long it would take for the pulley to destroy itself. would 20 or 30 miles a day for 2 or 3 days without the balancer on be too detrimental to the engine?
I've honestly no idea, mate. This chat may help someone spot the thread on LZ-Live or something. I don't know what the Td5 ones are like, I thought they were all one unit. Didn't realise there was a removable section on the Td5 ones.
put a spanner on the crank bolt and rock it ,if it feels rubbery its ok if it has play its had it ,they will run with metal to metal for some time but be noisy on start up and idle
the balance weight bolts onto the pulley but the rubber bit is inside the pulley. if they had put the rubber inside the weight, then that could have been changed without removing the pulley. even if they had put a couple of lugs inside the pulley, that would have stopped the rubber spinning inside it.
i thought the crank bolt would feel the same whatever the condition of the pulley. at 320nm it should just feel solid. or did you mean the bolts holding the balancer on?
no crank bolt ,crank will turn and pulley will want to stop still because of belt and ancillaries
right, i see what you mean. so if crank has no play, does that mean its only partially delaminated and just clanking a bit and if it does have play, its fully delaminated?
if it clanks it needs replacing in the not too distant future
i suppose it depends how you define a 'clank'. it sounds rattly on startup and idle.
yes. the 3 bolt you can see hold the balance weight on.Does it look like this?
@jamesmartin would it not make sense to take the weight off then? Does it bolt in to the rubber, so if removed the rubber will last a we bit longer?
Ah, interesting. So that's not really a balance weight then. That's the part that gets bolted to the crankshaft and then the pulley, via the inserted rubber, is bolted to it?
i thought it was the other way round. when you take the balance weight off, the pulley is still attached to the crankshaft.
you might be right its awhile since i had one off, but it wont help either way
here's a pic i found where the weight had strangely sheared off completely but the pulley still worked-
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