CRANKSHAFT AND OIL PUMP

ENG

3.Check:

Oil pump operation

Unsmooth Repeat steps #1 and #2 or replace the defective parts.

CHECKING THE CRANKSHAFT

1.Measure:

Crank width A

Out of specification Replace the crankshaft.

Crank width:

62.95~ 63.00 mm (2.4783 ~ 2.4803 in)

Side clearance D

Out of specification Replace the crankshaft.

Big end side clearance:

0.25~ 0.75 mm (0.0098 ~ 0.0295 in)

<Limit>: 1.00 mm (0.0394 in)

Runout C

Out of specification Replace the crankshaft.

Runout limit:

C1: 0.03 mm (0.0012 in)

C2: 0.03 mm (0.0012 in)

*****************************************************

Crankshaft reassembling point:

The crankshaft 1 and the crank pin 2 oil passages must be properly interconnected with a tolerance of less than 1 mm (0.04 in).

*****************************************************

CAUTION:

The buffer boss and woodruff key should be replaced when removed from the crankshaft.

4 - 68

Page 191
Image 191
Yamaha 5TE-F8197-10, LIT-11616-16-02 service manual Checking the Crankshaft, Crank width 62.95 ~ 63.00 mm 2.4783 ~ 2.4803