knocking on drive shaft , problem .

[Balders]

NEW MEMBER NEEDING HELP
First , hiya to all .
I have a knocking problem on my rear drive of newly accquired xs11s , its 1979 u.s. import . When in gear & mobile it knock ( as if a bolt was catching something sort of sound ) the magnet in the bevel box has swarf on it also .

Could any one advise me as to wether they have come accross this problem , wot possible parts may I need to accquire or where I might get the parts needed .

I will be most gratefull for any help passed on as I need to travel millions of miles on this beast , at 10 stone it wont know im'e on it . Happy Days yall .
Balders .

[Geezer]

It sounds like the universal joint. Pull back the boot just behind the engine and look it over. It should be obvious if it's bad.

Geezer

[randy]

By the way, these u-joints can be serviced if you get to them early. They come apart just like automotive ones and can be cleaned an re-lubed. Unfortunatley, we don't have a zerk fitting for greasing, so the only way to do it is to take it apart. Of course, all references to it say that it is not serviceable. Don't buy it. I did mine in about an hour, although it was already off. Add an hour to remove it and replace it.

Do it as part of your seasonal service routine. Something to think about because these U-Joints are NLA. Once you hear it clicking, it's too late for service, must be replaced.

HTH Randy

[Balders]

thanks

I would like to thank folk on here for the feedback , I got to the bottom of the problem . If you have a serious knocking from rear end but only wen in gear , take out the sump plug in rear bevel drive unit , if swarf is on magnet you probably have a knackered rear gear like me , luckily I chated to some good folk off this site who helped me solve the problem , hopefully not fitted parts yet .
Thanks to Robbie & Mark , I owe ya one , Balders .