[childresj]

Finally got round to tackling the 1512. I'm planning a restoration on my own terms for a working and not a show machine. Only known drive issue is R.H. trunnion seal leaking. I do not have the tools and expertise to remove the seal without removing the hydro unit. I thought I would then replace it without disassembly. Is it likely I have a bearing with excessive clearance which led to seal failure? Is there a procedure for checking maximum permissible radial clearance on the trunnion with the seal removed? I have no CC hydro experience but am generally suspicious of bearings associated with failed seals.
Do the experienced individuals here think I should get into the hydro and insure that I have no bearing issue rather than simply changing out the seal?
I have manuals so hope to not ask a question found in a manual. I hope I did not miss this topic in my searches of this site.
Thank you for any expert help in this regard.