Post by jjordan on May 31, 2012 16:54:04 GMT -5
I have a 139qmb engine that has a bad crank bearing. ordered a naraku hd crank that has 16 tooth sproket for the oil pump. when I cracked the the case I found a 22 tooth sprocket and oil pump. question is... is the oil pumps interchangable can I just install the 16 tooth oil pump and make this work the only difference I see is the locator pin are in different places and would not be able to be used on the 16 tooth bump unless I drilled out a little on the post that the stud scews into. the locator pin is like the pins used on the cylinder and head. any info would be much appreciated