Crankshaft pulley removal from Yanmar 4JH-HTE

Jun 15, 2012
715
BAVARIA C57 Greenport, NY
I am trying to remove the crankshaft pulley using a bolt-on pulley removal tool. I have removed the center bolt and large washer under it and screwed back in the center bolt loosely. The center bolt has a divet on it which the pulley removal tool engages. With a 3/8" drive ratchet attached to the removal tool I was unable to break the pulley out of it's position. I am going to spray some WD-40 around the pulley and tap the pulley with a Ball Peen hammer. I know PB Blaster might work, but I am concerned about damaging the front oil seal. Any suggestions appreciated!
 
Nov 6, 2006
10,083
Hunter 34 Mandeville Louisiana
Tension the puller tool as much as you can then pop the middle of the tool with the hammer.. should get it loose.