Further to the broken wishbone thread I was thinking of fitting grease
nipples to my wishbones so that I can pop a dose of suitable grease in from time to time.
Does anyone think this is a good idea?
Cheers
Mark
I think it would be nice to be able to grease as you suggest, and it would help to stop them squeeking.
But if they are incorrectly adjusted to start with it aint going to stop them breaking
Will introducing a hole into the bush tube not weaken them in the same way as the burn hole did?
Just throwing ideas round!
quote:
Originally posted by prawnabie
Will introducing a hole into the bush tube not weaken them in the same way as the burn hole did?
Just throwing ideas round!
Yes, I suppose the burn hole catching the end of the tube makes all the difference too. It would be like trying to tear a piece of paper from the
centre, as opposed to end if you see what I mean!
HTH
Shaun
The ideal way would be to upgrade to M14 and drill out the centre of the bolt and fit a nipple in the hex end and cross drill for a grease outlet.
Putting a nipple in the tube part of the wishbone is just asking for trouble
I really don't know why everybody uses poly bushes, the "Silentbloc" bonded rubber was invented back in the 1920s to solve the
problem.
In a rubber bush all the rotational movement is accommodate by the torsion of the rubber --- no rubbing friction nothing to seize.
Book style Triumph rubber bushes are actually less compliant to side force than most poly bushes.
Polybushes are dsigned to be 'dry' in use, not lubricated.
They are difficult to get hold of!
quote:
Originally posted by designer
Polybushes are dsigned to be 'dry' in use, not lubricated.
As someone already pointed out on the other thread I suspect that the vast majority of suspension arm failures are down to the crush tubes being too short causing the arms to bind on the pivot point which in turn causes the arm to fail . Crush tubes have been covered several times . Sorting the crush tube issue made my car a hell of a lot better to drive as I'm sure it has for others
With out wanting to sound patronising.
I think the key point to be made is,as with any vehicle,but particularly with a self home built vehicle,and a very high performance one at that,you
can't just leave it until something fails,which results in a breakdown,damage to your vehicle,or a accident,you must ensure you have a
preventative maintainance system in place.We are all aware of various problems and failures and common faults we have on our cars,not only crush tubes
and poly bushes,but other item's by no means exhaustive list,but includes,rear camber wishbone nuts coming loose,rubbing brake pipes and fuel
pipes,bike engine drive coupling nuts and drive shaft torx bolts coming loose,etc etc,so these must be built into our service schedule,I would say 99%
of us service our own kit cars,so we are responsible to ensure its done correctly.
I would suggest these wishbones and all other suspension components should be stripped down once a year,any corrosion that has built up removed,and
re-lubricated,then built back up and ensure it is still functioning as it designed,should be part of your preventative maintenance.
quote:
Originally posted by Mark Allanson
The ideal way would be to upgrade to M14 and drill out the centre of the bolt and fit a nipple in the hex end and cross drill for a grease outlet.
Putting a nipple in the tube part of the wishbone is just asking for trouble
. 