Does anyone know if the lower ball joint is a dry joint or if there is grease inside and also is there any way to introduce more lubricant as i assume its a sealed rubber cup. Can silicon be injected with a syringe perhaps or the tie wire removed and then replaced?
I am just trying to avoid the expense of a brand new lower joint especially as it not worn out.
Happy Easter to all
I cured my creaking finally last week, by lubricating the bottom ball joint.
I stripped the hub down as far as taking the backplate and disk off, then cracked the balljoint taper and moved the bottom arm down to free the balljoint taper.
I injected copper grease using a printer ink cartridge refill syringe with a large bore needle.
I had previously tried spraying silicon lubricant in from an aerosol, which cured it for a day or two, which told me I had found the source of the noise, but it came back.
Only by breaking the taper, getting sufficient grease in and rotating the ball in the socket while swinging it back and forth got enough lube into the right place.
As far as I know there is no rubber in the cup. it's made from a hard thermoset plastic. if you're really concerned that copper grease (or a petroleum based grease) would rot the plastic, a little tube of lithium plastic grease from maplin's will do the job.
I'm sure that will fix it.