Section 05
ENGINE (4-TEC)
Subsection 09
(ENGINE BLOCK)
SMR2002_073_05_09A.FM
05-09-13
Distance between measurements should not ex-
ceed the service limit mentioned above.
Cylinder Out of Round
Measure cylinder diameter in piston axis direction
from top of cylinder. Take an other measurement
90° from first one and compare.
NOTE:
Take the same measuring points like de-
scribed in CYLINDER TAPER above.
A. Perpendicular to crankshaft axis
B. Parallel to crankshaft axis
Bushings
To measure the wear of the crankshaft bushings
no. 13
and
no. 14
and balance shaft bushings
no. 15
, both engine block halves with
OLD
bush-
ings have to be screwed together according to
tightening procedure described below.
Measure the inside diameter of the bushings with
a radial gauge.
ENGINE UPSIDE DOWN
1. Radial gauge
ENGINE UPSIDE DOWN
1. Radial gauge
Replace bushings if they are out of specifications.
CYLINDER TAPER IN DIAMETER
mm (in)
NEW MAXIMUM
0.038 mm (.001 in)
SERVICE LIMIT
0.090 mm (.004 in)
CYLINDER OUT OF ROUND
mm (in)
NEW MAXIMUM
0.008 mm (.0003 in)
SERVICE LIMIT
0.015 mm (.0006 in)
A
R1503motr25A
B
CRANKSHAFT BUSHING INSIDE DIAMETER
mm (in)
SERVICE LIMIT
50.1 mm (1.9724 in)
BALANCE SHAFT BUSHING INSIDE DIAMETER
mm (in)
SERVICE LIMIT
32.11 mm (1.2642 in)
1
R1503motr33A
R1503motr34A
1
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Summary of Contents for GTX 4-TEC 5573 2002
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