Problems rebuilding HDS 3 speed transmission
Posted: Wed Aug 20, 2014 10:34 am
I've started work on rebuilding the 3 speed HDS model transmission for my 1937 D-2 (worn front mainshaft bearing mainly, and lots of tar like residue coating the parts). Does the group have any collective wisdom in their transmission work on dealing with these issues I've run up against? I might post this to the K series forum since it uses the same model of transmission.
1) I can't remove the front main shaft. According to the IHC manual it says to drive out the countershaft allowing the countershaft gear cluster to drop in the case, thus allowing room for the mainshaft to be withdrawn from the case. However, try as I might I haven't been able to get the mainshaft to clear the dropped countershaft gear. The gear appears to be at the very bottom of the case. The synchronizer teeth on end of the mainshaft look like they still need an additional one eighth inch of clearance. Any suggestions or am I just missing something that's obvious.
2) How to pull the front and rear main bearings? Since the bearings are shaft mounted the drive force will need to be on the inner race. However there does not appear to be room for a bearing splitter to "get behind" the bearing and get the driving force on the inner race?
3) What kind of tools do you use to remove and reinstall the snap rings, especially the plain small one in front of the mainshaft bearing? It's about one inch in diameter and typical snap ring pliers aren't strong enough. Googling this didn't come up with anything useful. Maybe I'm not calling it by the right name.
Thanks for any insights you folks can provide.
1) I can't remove the front main shaft. According to the IHC manual it says to drive out the countershaft allowing the countershaft gear cluster to drop in the case, thus allowing room for the mainshaft to be withdrawn from the case. However, try as I might I haven't been able to get the mainshaft to clear the dropped countershaft gear. The gear appears to be at the very bottom of the case. The synchronizer teeth on end of the mainshaft look like they still need an additional one eighth inch of clearance. Any suggestions or am I just missing something that's obvious.
2) How to pull the front and rear main bearings? Since the bearings are shaft mounted the drive force will need to be on the inner race. However there does not appear to be room for a bearing splitter to "get behind" the bearing and get the driving force on the inner race?
3) What kind of tools do you use to remove and reinstall the snap rings, especially the plain small one in front of the mainshaft bearing? It's about one inch in diameter and typical snap ring pliers aren't strong enough. Googling this didn't come up with anything useful. Maybe I'm not calling it by the right name.
Thanks for any insights you folks can provide.