Topic: 750 countershaft gear orientation

[DH]

http://www.westernhonda.com/fiche_section_detail.asp?section=2560049&category=Motorcycles&make=Honda&year=1975&fveh=132839

Part #14. Mine slid off the countershaft by accident while handling. I THINK it's installed correctly but, not sure.
I know the gear will inststall/fit on the shaft either way round, but is there a way to tell which is correct? Any identifying
marks or offset differences in the hub area? Am I missing something? Don't want overthink the issue, but don't want to have to split the cases again either. Any information is much welcome.

[mystic_1]

I just commented about this in a different thread:

http://forums.sohc4.net/index.php?topic=138663.msg1656033#msg1656033

tl;dr: one side of the gear has a taller flange near the "hub".  That side should point away from the other gears.  See link for pics.

mystic_1

[DH]

I just commented about this in a different thread:

http://forums.sohc4.net/index.php?topic=138663.msg1656033#msg1656033

tl;dr: one side of the gear has a taller flange near the "hub".  That side should point away from the other gears.  See link for pics.

mystic_1

mystic, I'm thinking that the gear in your link is the one next to the one I am concerned with. Mine is on the very end of the shaft, just before the countershaft goes into the countershaft roller bearing that is mounted in the case. Your thoughts?

[mystic_1]

Ah you're right, you mean the final drive gear.  If I recall correctly, that gear is symmetrical, so there's not so much a right way and a wrong way to install it.

You may be able to get some clues as to it's original orientation by looking for wear patterns on the gear surfaces, but I don't believe it's orientation matters.

mystic_1

[flybox1]

Ah you're right, you mean the final drive gear.  If I recall correctly, that gear is symmetrical, so there's not so much a right way and a wrong way to install it.

You may be able to get some clues as to it's original orientation by looking for wear patterns on the gear surfaces, but I don't believe it's orientation matters.

mystic_1

+1
Just had these in my hands yesterday.
#14 from your picture (final drive gear) can be installed either way.  Its #4 next to it, that has a specific orientation.

[DH]

Thanks guys. Hopefully I'll get it back the right way it was, and if not, it won't be noisey from running it the other way round.

[martin_uk]

On my K8 there was a difference, which can be seen if you put a straight edge across and one side inner flange was level and other recessed.

If you look at sectional drawing in manual you can see the difference.

[DH]

On my K8 there was a difference, which can be seen if you put a straight edge across and one side inner flange was level and other recessed.

If you look at sectional drawing in manual you can see the difference.

I did that with the straight edge, but couldn't see any difference on mine (k5). Maybe the k8 is different?