SPendrey Posted May 4, 2014 Share Posted May 4, 2014 OK, I think I've been a plonker... I replaced a UJ on the front prop of my Disco the other night. Once all assembled it moved, but not as freely as the old one on the other end. I figured that could be due to the new one being a "heavy duty" type, or perhaps because it isn't a GK one (its a Bearmach one). Anyway, it was only later I thought about the little plastic plugs that sit in the ends of the spider... in Les's thread about replacing the UJs they're not visible, but in my case they were left on. So, should I now be taking the whole thing apart again? Photo illustrates what I mean... one side with plugs one without. Which should it be? The plugs, incidentally, are very easy to take off/fall out, but I assumed the were for some sort of grease distribution?! Quote Link to comment Share on other sites More sharing options...
western Posted May 4, 2014 Share Posted May 4, 2014 haven't seen those in UJ's before but remove them, that's the drilling so the grease can get from grease nipple to the bearing caps/needle rollers. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted May 4, 2014 Share Posted May 4, 2014 They're thrust washers of sorts I think. Mine had grooves in to guide the grease from the central gallery to the needles. Quote Link to comment Share on other sites More sharing options...
western Posted May 4, 2014 Share Posted May 4, 2014 That would make sense to distribute the grease to the ends of the needle rollers., must be a updated part then. Quote Link to comment Share on other sites More sharing options...
miketomcat Posted May 4, 2014 Share Posted May 4, 2014 They have a "pimple" in the middle to help distribute the grease to the rollers evenly so yes they are supposed to stay in there. I have known some people cut a groove in the end of the spider for even better grease distribution but I'm not convinced. Mike Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted May 4, 2014 Share Posted May 4, 2014 All the ones I have ever fitted have had them... and I left them in. Quote Link to comment Share on other sites More sharing options...
Daan Posted May 4, 2014 Share Posted May 4, 2014 They can be a bit stiff when assembled; usualy the result of the cup being pressed in the joke too far and the press fit stops it sliding back against the circlip once assembled. All it needs is a tap from a hammer in the right place to push the cup hard up against the circlip. Quote Link to comment Share on other sites More sharing options...
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