Seven main bearing caps (1) are line bored with crank-
c a s e (2). If any main bearing cap is damaged, crankcase
and all main bearing caps must be thrown away.
Main bearing bores are called by numbers one to seven
counting from front to rear of crankcase (2).
Using dial indicator, measure inside diameter of number four bearing bore
(3). Inside diameter must be 3.9370 to 3.9380 inches.
If inside diameter of number four bearing bore (3) is not 3.9370 to 3.9380
inches, throw away crankcase (2) and get a new one.
New crankcase (2) will come with new main bearing caps (1).
If diameter of number four main bearing bore (3) is 3.9370 to 3.9380 inches,
take out two bolts and washers (4) and take off main thrust bearing cap (1).
GO TO FRAME 50