Onan Generator Armature Removal

[gary j zingle]

Duane thanks for confirming that I was on the right track with torquing
the top bolt last on my exhaust manifolds.

Now maybe you or some other smart person can help with one that
has me stumped to date.

I have my 6000 watt Onan torn down for it's pre new year overhaul
(might need it Jan 1 when all the rivers reverse direction etc.).

It has a leaky rear main seal. I have removed all the easy stuff
but to date I have been unable to remove the generator armature
to gain access to the seal.

I have removed the nut on the thru rod at the back of the armature.

The Onan manual I have is a little light on this one, it claims the
armature
is a tapered fit onto the end of the crankshaft and that it now that I ha=
ve
the
nut off the back of the thru rod the armature should pull off.

It doesn't want to and there is nothing that I can see on the armature th=
at
I want to give a good pull.

Tommorow I thought I would get a coupling nut for the thru rod
(looks like 7/16 NC), grind the outside of the coupling nut down
(for clearance) and use that plus a bolt to lock onto the thru rod and tr=
y
to un-thread it.

My thought is that I should be able to remove the thru rod prior to the
armature
and that maybe being a long rod, if the thru rod had a little corrosion,
might be
keeping the armature from coming off.

Do I seem on the right track or is there a special puller or trick?

Thanks in advance

Regards

Gary Zingle
1973 GMC 26 foot

 

[gary j zingle]

Thanks Scott

I did try the "strike the armature at the bearing end" but I
did not hit it hard enough to dislodge the armature
(or wreck the armature either), however I felt so stupid
following that instruction that I did not want to admit it.

Did you remove your armature while the thru rod was
still in place or did you remove the thru rod first?

I have spent time on your site looking at your Onan,
however most of that was prior to my attacking
mine........ I think another visit might well be in order.

Regards

Gary Zingle