Topgun 0 #1 Posted June 27, 2014 Hello to all say I Just picked up this old C-121 Automatic Wheel Horse at a auction an would like to change the oil But I can not locate the Drain Plug its crazzy it should be able to be seen but I can not located it at all what side would it be on any help would be great thanks John Share this post Link to post Share on other sites
SousaKerry 503 #2 Posted June 27, 2014 Wheel horse usually installed a short piece of pipe on the bottom of the motor to help direct the flow of oil, however this may have been removed by the previous owner. Look under the motor through the large rectangular hole in the shaker plate and see if there is a hex plug or something similar. If your C-121 is an early version or the motor has been replaced with a solid mount version the drain will be on the side of the block at the bottom usually will be facing the back of the tractor in the middle. Share this post Link to post Share on other sites
SousaKerry 503 #3 Posted June 27, 2014 (edited) Oh and here are your manuals and http://www.wheelhorseforum.com/files/download/305-tractor-1979-b-series-6-speed-om-wiring-810134r1pdf/ Edited June 27, 2014 by SousaKerry Share this post Link to post Share on other sites
