Crankshaft Journal Bearing - Suzuki GSX-R750 Service Manual

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CRANKSHAFT JOURNAL BEARING

• Inspect each bearing of upper and lower crankcases for any

• Place the plastigauge axially along the crankshaft journal, avoid-

ing the oil hole, as shown.

[ 09900-22301: Plastigauge

Never rotate the crankshaft when a piece of plastigauge

is installed.

• Mate the lower crankcase with the upper crankcase, and tighten

the crankcase bolts (M9) with the specified torque value in the

indicated order.

! Crankcase bolt (9 mm)

• Remove the lower crankcase and measure the width of the

compressed plastigauge using the envelope scale. This mea-

surement should be taken at the widest part of the compressed

plastigauge.

Crankshaft journal oil clearance:

Standard: 0.016 – 0.040 mm (0.0006 – 0.0016 in)

Service Limit: 0.080 mm (0.031 in)

• If the oil clearance exceeds the service limit, select the speci-

fied bearings from the bearing selection table.

Initial : 18 N . m (1.8 kgf . m, 13.0 lb-ft)

Final : 32 N . m (3.2 kgf . m, 23.0 lb-ft)

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