R10 Overdrive Issue

[40cpe]

Originally Posted by Gary Duff

fredv


I can see that the snap rings are missing that locate the shifting
sleeve on the sun gear. This would allow the sleeve to slide with
the shift fork and not bring the sun gear with it.
Gary

I'm anxious to see how this plays out, and I know Fred is too. Fred has said that the transmission locks up/freewheels normally. That indicates that the sun gear is traveling on the shaft. Kinda looks like there is a lock ring on the side of the shift collar but it is hard to tell from the photo.

Fred will sort it out eventually. Most would have already given up.

[fredv]

Thanks for your support 40cpe. I will have to sort it out, these transmissions are almost unknown here in France.
Gary, the sun gear was not disassembled when I overhauled the transmission, so I would rather go for a problem related to the blocker ring...

[fredv]

I did all checks again and OD still doesn't engage.
I will drive the car without OD this week and remove the transmission from the car and overhaul the OD section again next week, unless someone find the solution. I do think the problem is related to the blocker ring...

[40cpe]

just curious, did you try to engage the pawl manually?