system6 Posted June 12, 2014 Share Posted June 12, 2014 Hi all Progressing with my resto project , univerasal joint on prop ,... i've removed the joint but lost the position of exactly how the parts came apart , if fitted different from how it was originally will this cause a problem with the prop being out of balance,.... Thanks Quote Link to comment Share on other sites More sharing options...
Gt6s Posted June 12, 2014 Share Posted June 12, 2014 It goes together with ends matched ie propshaft yoke in line with sliding joint propshaft end yoke.Laurence Quote Link to comment Share on other sites More sharing options...
system6 Posted June 12, 2014 Author Share Posted June 12, 2014 Laurance Don't quite understand :-/, is it possible to explain a little more .........Thanks Quote Link to comment Share on other sites More sharing options...
Sheepy Posted June 12, 2014 Share Posted June 12, 2014 The end flange can be fitted two ways (180 degrees) but that is no problem, it does not affect balance. as you fit the new joint, and circlips, don't forget to make sure it's seated back against the clips, so that it is not "dragging" the best way to test, hold the prop, and lift the flange, let go and it should drop with no or very little resistance.Then if you have pulled the prop apart, fit the sliding joint, so that the position of the yokes (on the main prop and inner part of the sliding joint) are the same orientation, or you can also look at the two end flanges for the same result. I.e. one is not 90 degrees different from the other! Hope that makes sense, :) Quote Link to comment Share on other sites More sharing options...
system6 Posted June 12, 2014 Author Share Posted June 12, 2014 Oh dear still not clear to me :(, explain with photo's anyone ......Thanks Quote Link to comment Share on other sites More sharing options...
esxefi Posted June 12, 2014 Share Posted June 12, 2014 imagine splitting the prop in two along its length,you with me so far?well the split would need to go through the centre of the yoke holes at each end.forget it here's a picture.http://www.mgb-stuff.org.uk/ps.htmhope that makes sense :P :) Quote Link to comment Share on other sites More sharing options...
Gt6s Posted June 12, 2014 Share Posted June 12, 2014 That photo explains it perfectly and that is the way I was trained it always be done.HOWEVER ! Some years ago I worked in a MAN truck dealership I had the two piece propshaft off a vehicle. I reassembled propshaft as I had been trained and discovered a really bad transmission vibration. I had my foreman look at the prop and he confirmed I had the prop properly assembled (also as he had always been trained). Out of curiosity we looked at a couple of other trucks of the same model to find that at the centre bearing carrier the couplings were crossed (Wrong as my foreman and I had been trained) I removed the joint on the vehicle I was working on to assemble the same way as the other trucks we had inspected VIBRATION GONE. Laurence Quote Link to comment Share on other sites More sharing options...
esxefi Posted June 12, 2014 Share Posted June 12, 2014 yes,if you have three uj's you have to cancel out the alignment oscillation by offsetting the middle one by 90 degrees.otherwise the whole prop is trying to expand and shrink as it fights with itself. Quote Link to comment Share on other sites More sharing options...
system6 Posted June 13, 2014 Author Share Posted June 13, 2014 Thanks for all your replies.......i undrstand know(dance) Quote Link to comment Share on other sites More sharing options...
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