Join Date: Feb 2014
Location: Northern Indiana
FWIW, my Platinum does exactly the same thing. I over greased my augers and had a nice little stream of grease squirting back out. Wiggled the rotors back and forth and more came out. (Rotors are well greased however).
Anyway, I came to the conclusion that if you overfill the joint, the excess is ejected out of the zerk. There doesn't appear to have a check in these zerks, as they're not a high pressure fitting anyway.
Same as what you find on mower deck spindle zerks. (No grease is needed in a spindle anyway, they are just breathers to let moisture out. But people still insist on shooting grease in them thinking they are greasing the "sealed" bearings).
2014 Ariens 24" Platinum
2010 Yard Machines 600 Series, 24" w/179cc MTD engine
Toro CCR 3650 GTS
Troy Bilt 521OR w/Tecu HSSK50 engine