Daewoo G424 Gasoline Service Manual page 164

Plastic gauge
G424 Service Manual
Inspection
1. Crankshaft Oil Clearance (Plastic Gauge
Method)
Use of the plastic gauge can facilitate the oil clearance
measurement work.
To use the plastic gauge, proceed as follows:
(1) Remove oil from the crankshaft journal and crankshaft
bearing.
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(2) Install the crankshaft.
(3) Cut the plastic gauge to the same length as the width of
the bearing and place it on the journal in parallel with its
axis.
(4) Install the crankshaft bearing cap carefully and tighten
the bolts to specified torque.
(5) Remove the bolt, and carefully remove the crankshaft
bearing cap.
(6) Measure the width of the plastic gauge at its widest part
by using a scale printed on the plastic gauge package.
Standard value: 0.02 to 0.04 mm (0.0008 to 0.0016 in.)
Limit: 0.1 mm (0.004 in.)
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2. Cylinder Block
(1) Visually check for scratches, rust, and corrosion. Use
also a flaw detecting agent for the check. If defects are
evident, correct, or replace.
(2) Using a straightedge and feeler gauge, check the block
top surface for warpage. Make sure that the surface is
free from gasket chips and other foreign matter.
Standard value: 0.05 mm (0.0020 in.)
Limit: 0.1 mm (0.004 in.)
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(3) Check the cylinder walls for scratches and seizure. If
defects are evident, correct (bored to oversize) or
replace.
(4) Using a cylinder gauge, measure the cylinder bore and
cylindricity. If worn badly, rebore all cylinders to an
oversize and replace piston rings. Measure at the points
shown in the illustration.
Standard value:
Cylinder I.D.
6EN0553
Cylindricity 0.1 mm (0.004 in.)
163
86.50 to 86.53 mm (3.4055 to 3.4067 in.)
Base Engine Service Procedure