Paul - xxx wrote:
> Bloody feckin' useless lumps of feckin' cheesy steel. Rear (front
> prop) UJ has gone again. I think I've replaced them all now in a year.
> Bought a pair of UJ's just in case one was much older than the other
> and will replace as a pair ... but ...
>
> Anyone got a clue why they would go frequently?
>
> When i replace them I pack more grease in, make sure the grease nipple
> is in properly _and works_ and regularly clean and grease them, esp.
> after wading/muddy off-roading. I always tighten them correctly and
> check they're still tight a hundred or so miles later, and again after
> every wading/mud session.
>
> I am of the opinion that maybe the propshaft might be bent, twisted or
> otherwise fecked, would anyone agree with this or have any other ideas?
> At a quick glance it doesn't appear to be ... could the yokes go out of
> line?
>
> Cheers ... ;)
Can you describe the nature of the failure? Is it the bearings or the
bearing housing/yoke? If the bearings, how did they fail? What does the
grease look like when you disassembled the UJ.
What sort of grease are you using? Does it contain Moly Disulphide?
These are UJs with grease nipples. When greasing do you ensure that
clean grease comes out at all bearings?
Is there any vibration? All talk of bent shafts, incorrect UJ
orientation etc. is unlikely to be the cause without vibration also
being evident.
When you compress the shaft does it stay compressed when you let go or
does it spring out again?
Is the shaft too long? Disconnect one end and fully compress the shaft -
how much clearance do you have?
Off-road use does tend to result in a much shorter life for UJs whatever
you do with them.
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