Section 01 ENGINES (1503 4-TEC)
Subsection 07 (CYLINDER BLOCK)
3
R610motr79A
12
1. Half bearing of connecting rod big end
2. Split surface of the connecting rod
3. Protrusion of bearing in line with connecting rod groove
Torque NEW connecting rod screws no. 11 as per
following procedure:
– Install screws and torque to 45 N•m(33lbf•ft).
Do not apply any thread locker product.
– Finish tightening the screws with an additional
90° turn using an angle torque wrench.
CAUTION: Failure to strictly follow this proce-
dure may cause screw to loosen and lead to en-
gine damage. Knowing that the screws have
been stretched from the previous installation,
it is very important to use new screws at as-
sembly.
R1503motr31A
1
1. Angle torque wrench
PISTON RINGS
Removal
Remove piston ass'y as described above.
Remove rings.
Inspection
Ring/Piston Groove Clearance
Using a feeler gauge measure each ring/piston
groove clearance. If the clearance is too large, the
piston and the piston rings should be replaced.
RING/PISTON GROOVE
CLEARANCE mm (in)
NEW MINIMUM
RECTANGULAR
0.025 (.001)
TAPER-FACE 0.015 (.0006)
OIL SCRAPER RING 0.020 (.0008)
NEW MAXIMUM
RECTANGULAR 0.070 (.0028)
TAPER-FACE
0.060 (.0024)
OIL SCRAPER RING 0.055 (.0021)
SERVICE LIMIT
ALL
0.15 (.006)
2
R1503motr32A
1
1. Piston
2. Filler gauge
98 SMR2005-037
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