Crankshaft And Bearings Cleaning And Inspection; Crankshaft Bearing Inspection - Suzuki XL7 2007 Service Manual

Crankshaft and Bearings Cleaning and
Inspection
Reference: "Crankshaft and Bearings Removal: ".
Cleaning Procedure
1. Clean the following components in solvent:
– Crankshaft bearings
– Connecting rod bearings
– Crankshaft journals
– Crankpin journals
– Crankshaft oil passages
– Crankshaft threaded holes
WARNING
!
Refer to "Safety Glasses Caution: ".
2. Dry the following components with compressed air:
– Crankshaft bearings
– Connecting rod bearings
– Crankshaft journals
– Crankpin journals
– Crankshaft oil passages
– Crankshaft threaded holes
Visual Inspection
1. Perform the following visual inspections:
– Inspect the crankshaft balancer bolt hole (1) for
thread damage.
– Inspect the crankshaft balancer mounting area (2)
for damage.
– Inspect the crankshaft sprocket pin hole (3) for
damage.
– Inspect the oil pump drive flats (4) for damage.
– Inspect the crankshaft main journals (5) for
damage.
– Inspect the crankshaft connecting rod journals (6)
for damage.
– Inspect the crankshaft oil passages (7) for
obstructions.
– Inspect the crankshaft main bearing thrust wall
surfaces (8) for damage.
– Inspect the crankshaft counterweights (9) for
damage.
– Inspect the crankshaft reluctor ring teeth (10) for
damage.
– Inspect the crankshaft rear main oil seal surface
(11) for damage.
– Inspect the crankshaft engine flywheel mounting
surface (12) for damage.
– Inspect the crankshaft pilot hole (13) for damage.
– Inspect the crankshaft engine flywheel bolt holes
(14) for thread damage.
2. Repair or replace the crankshaft as necessary.

Crankshaft Bearing Inspection

NOTE
• All connecting rod and main journal
bearings that have been used in a running
engine must be replaced. Never re-use the
crankshaft or connecting rod bearings.
• The following bearing wear conditions
should be used to diagnose engine
operating conditions or root cause of a
condition.
1. Inspect for fatigue indicated by craters or pockets.
Flattened sections on the bearing halves also
indicate fatigue.
Engine Mechanical: 1D-167