steve_r2 Posted September 2, 2008 Share Posted September 2, 2008 Hi, Is it unusual for UJ's to start playing around even after a relative short lifespan ? The reason I ask is that I have only 33000 miles up but at around 70 Mph (120Kms) I get distinct vibration through the rear. Therefore I was wondering whether this was the UJ causing this or something else I need to check out ? I had the wheels balanced again to see if this helped to sort it which it did to an extent however the vibration is still there. Steve Quote Link to comment Share on other sites More sharing options...
Les Henson Posted September 2, 2008 Share Posted September 2, 2008 Some U/J's are very poor quality, and last only a very short time. The vibration could also be caused by a worn sliding joint (new prop time), balance weight lost from the shaft, diff or transfer box output bearing. Les. Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted September 2, 2008 Share Posted September 2, 2008 It also helps to grease them much more often than the LR recommended intervals. I do all mine at least every 5000 kms (3000 miles) and they are still ok at 271 000 kms. This especially applies to the rear UJ on the front prop, which has a greater angle than the others, at least they tend to fail first. Quote Link to comment Share on other sites More sharing options...
steve_r2 Posted September 2, 2008 Author Share Posted September 2, 2008 Thanks, I will get under and have a good check over and grease everything. If it doesn't settle then new UJ's it is. Steve Quote Link to comment Share on other sites More sharing options...
LZ5UL Posted September 2, 2008 Share Posted September 2, 2008 Steve, if it comes to UJ's replacement - buy GKN's . About the sliding joints, my humble experience showed that they cannot be lubricated properly through the grease nipple. Is't much better to separate the two halfs of the propshaft, then clean and lubricate generously. In this way you can also check the slide's plastic cover( rilfan? ) Don't forget to check the stamped markers on the two prop halfes before assembling. Hope it make sence Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted September 2, 2008 Share Posted September 2, 2008 If you split the prop shaft you MUST mark it before you do so so that you can reassemble it exactly the same way. Otherwise the balance will be out. Quote Link to comment Share on other sites More sharing options...
LZ5UL Posted September 2, 2008 Share Posted September 2, 2008 Yes, especially on flange drives. The props usually have stamped arrows, at least mine do have...It's all about ballance Quote Link to comment Share on other sites More sharing options...
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