S5 Workshop Manual
Engine
EM-30
3) How to use plastic gauge
Plastic gauge is normally used for measuring clearance.
Remove oil, grease and any other dirt from bearing and journal.
Cut the plastic gauge to make its length equal to the width of bearing. Keep away
from oil hole, and place it on the position parallel to the journal.
Install crankshaft, bearing and cover
and tighten them to the specified torque.
During this operation, do not rotate
crankshaft. Dismantle lower cover, and
use the scale marked on the package of
plastic gauge to measure the width of
plastic gauge on maximum width
position. If the clearance exceeds service
limit value, it is necessary to replace
bearing or use small size of bearing.
When installing new crankshaft, make
sure to use standard size of bearing. If the standard clearance still can't be achieved
after replacing bearing, it is necessary to grind journal to reduce size, and install
proper size of bearing.
3) Oil Seal
Inspect whether front and rear oil seals have damage or surface abrasion. Replace any
defected oil seal.
4) Bearing Cover
After installation of bearing cover, make sure that crankshaft can rotate smoothly and
axial clearance is correct. If axial clearance exceeds limit value, replace thrust
bearing.
Standard value: 0.05
～
0.25 mm
5) Drive disc (A/T)
Replace transformative, damaged or cracking drive disc.
6) Flywheel (M/T)
Inspect whether clutch disc contact surface of flywheel has damage or abrasion. If
there is any serious damage or abrasion, replace flywheel.
EM042
EM043
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