Topic: 73 CB750 countershaft seal

[754]

 You need at least a vernier caliper to do this, access to a lathe, even better..
 Insert a threaded piece into end of shaft, it threads in.
And make a cup to fit outside of seal,  with a hole in the middle of the flat part that fits over the rod ..think spray bomb lid with hole in the end but metal.
 Now place it over the threaded part, and touching the seal, then use a washer and nut on the threads, to pull cup and the seal towards the engine case.

 Failing making a cup you could use PVC,  cut to length accurately, and a big washer.   
 I think  hole in shaft might be  for 14mm thread.  Maybe just maybe 1.0 pitch.

[My73andme]

Ok ok I understand now that’s a really good idea but I don’t have that kind of set up I will try my pvc tool 🙏🏾 Thanks so much for your wisdom

[My73andme]

I guess I don’t have an Oiler so the hole at the end of my shaft is smaller. Do you know the size and thread of that hole at the end of my shaft?

[My73andme]

I got the seal in today. It was my 3rd try at the seal without splitting the cases. I did use a couple different methods and I’m not 100% sure it will work. But I want to put the bike back together and ride it so we shall see if it will work. If not I’ll pull the motor and split the cases.

The seal isn’t perfectly flush with the cases but only at the bottom like an 1/8” I will probably get it flush before it’s all said and done but it’s good enough for now I suppose.

Thanks for all your help.