FRAME 43

TM 9-2815-210-34-2-2

FRAME 43

NOTE

Seven main bearing caps (1) are line bored with crankcase

(2). If any main bearing cap is damaged, crankcase and all

bearing caps must be thrown away.

Main bearing bores are called by numbers one to seven

counting from front to rear of engine.

U s i n g dial indicator, measure inside diameter of number one bearing bore

(3). - Inside diameter must be 3.9370 to 3.9380 inches.

If inside diameter of number one main bearing bore (3) is not 3.9370 to

3 . 9 3 8 0 inches, throw away crankcase (2) and get a new one.

NOTE

New crankcase (2) will come with new bearing caps (1).

If diameter of number one main bearing bore (3) is 3.9370 to 3.9380 inches,

take out two screws and washers (4) and take off number one main bearing

cap (1).

GO TO FRAME 44

4-67