DefenderAdventuresUK · Aug 29, 2021

Hi there,

I greased the UJs yesterday and was on the understanding that the prop shafts had a grease nipple for the slider part, which mine don’t seem to. Is this right? How do I grease the slide section? have standard props on a 2012 Defender 110.
thanks

Wimblowdriver · Aug 29, 2021

Not normally necessary. But if you want to grease them you will need to dismantle them.

lynall · Aug 29, 2021

Many prop slider splines are now plastic coated, so once you have play they are dead.

DefenderAdventuresUK · Aug 29, 2021

Wimblowdriver said:
Not normally necessary. But if you want to grease them you will need to dismantle them.

Ahh OK, no I don't have an urge to grease them, I just thought you needed to and there was a grease point, if its not a requirement then that's fine. Thank you.

DefenderAdventuresUK · Aug 29, 2021

lynall said:
Many prop slider splines are now plastic coated, so once you have play they are dead.

I will leave them, cheers

the_wolf · Aug 29, 2021

It is a requirement even without grease nipples otherwise you will develop play because the sliding joint is just running dry. Remove the flange that has the grooved sliding portion and slide it out. Pack some grease inside the tube and rub the splines with grease and slide it back in. Make sure you mark the orientation before you take it out so that it goes back in properly as the flanges are offset from each other

tottot · Aug 29, 2021

A problem that can happen if you do above is some of the plastic may have separated from the metal splines some and when you try to put the splines back in it does not go or more of the plastic peels off and the shaft is finished. Guess how I know this.

Turboman · Aug 29, 2021

tottot said:
A problem that can happen if you do above is some of the plastic may have separated from the metal splines some and when you try to put the splines back in it does not go or more of the plastic peels off and the shaft is finished. Guess how I know this.

I have had that problem as well, on a greasable sliding joint shaft. Once the coating comes off the splines, no amount of greasing will help.

The shafts last pretty well, but there comes time when you need a new one.

the_wolf · Aug 30, 2021

tottot said:
A problem that can happen if you do above is some of the plastic may have separated from the metal splines some and when you try to put the splines back in it does not go or more of the plastic peels off and the shaft is finished. Guess how I know this.

Nobody likes having their shaft peeled

tottot · Aug 30, 2021

the_wolf said:
Nobody likes having their shaft peeled

mick 1986 · Aug 30, 2021

the_wolf said:
It is a requirement even without grease nipples otherwise you will develop play because the sliding joint is just running dry. Remove the flange that has the grooved sliding portion and slide it out. Pack some grease inside the tube and rub the splines with grease and slide it back in. Make sure you mark the orientation before you take it out so that it goes back in properly as the flanges are offset from each other

The service document @Wimblowdriver linked to, says the joint does not need lubricating.

On the older props with a grease nipple, yes I agree with you that they do, but not on the newer ones.

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