RHill Posted August 21, 2016 Report Share Posted August 21, 2016 Transmission torn apart and find this: Yellow circles highlight oil ports in the shaft and through the 3/4 gear. There are 2 ports in the 3/4 gear 180 degrees apart. I'm trying to figure out if the holes should be aligned, spaced a certain amount or what. Current situation as it was disassembled is photo'd, so 2 splines separating the holes. Manual makes no reference to this....just calls out aligning all the bushing holes. Planning on putting the bike back together tomorrow, so hopefully I can get this figured out quick. Quote Link to comment Share on other sites More sharing options...
Gixxus Christ! Posted August 21, 2016 Report Share Posted August 21, 2016 Is the oil fed through the shaft? If so, I wouldn't think that these oilers need to be oriented any particular way, in the end oil just flings out of them while they're spinning at hundreds or thousands of rpm. Quote Link to comment Share on other sites More sharing options...
RHill Posted August 21, 2016 Author Report Share Posted August 21, 2016 Yeah oil is fed through the shaft and out the ports in the shaft. For the bushings, the holes line up so the oil travels through the shaft and through the bushing....lubricating the gear that is spinning on the exterior of the bushing. For the 3/4 gear, I'm not so sure. If the holes are not lined up, oil would "float" the gear, making lateral movement on the splines easier (this gear is moved by the shift fork), but it would provide very little lubrication to the rubbing area of the shift fork.....where there was heavy wear. If the holes are lined up more oil would flow to the shift fork, but the port would be wide open.....meaning reduced backpressure to force oil through the other ports/bushings. Quote Link to comment Share on other sites More sharing options...
RHill Posted August 21, 2016 Author Report Share Posted August 21, 2016 the problem is: if the hole on the gear is misaligned with the shaft, the splines create a labyrinth seal....a complex path for the oil flow. So, the oil will take the path of least resistance, out the sides of the gear, instead of flowing to through the complex path around the splines to the port in the gear. So, if it is misaligned, the shift fork rubbing on the gear won't get much lubrication. On the other hand, if the ports are lined up, the splines will get no lubrication. Quote Link to comment Share on other sites More sharing options...
RHill Posted August 21, 2016 Author Report Share Posted August 21, 2016 After checking the other shift fork paths, the gear holes are all a couple splines off the shaft oil ports...although they are not all equally spaced. So it is going back together the way it came apart. Quote Link to comment Share on other sites More sharing options...
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