Reassembly - Isuzu 1999 RODEO Workshop Manual

6A–56 ENGINE MECHANICAL (X22SE 2.2L)
Crankshaft grinding dimensions
(continued)
Production and Service
Con–rod bearing journal dia.
Standard size
(no color code)
Undersize 0.25 (0.0097)
Undersize 0.5 (0.0195)
Con–rod bearing journal width
Standard size
(no color code)
Undersize 0.25 (0.0097)
Undersize 0.5 (0.0195)
Con–rod width

Reassembly

1. Install connecting rod
2. Install piston
3. Install piston pin
f Apply a thin coat of engine oil to the piston pin. Try to
insert the piston pin into the piston pin hole with
normal finger pressure.
NOTE: When changing piston / connecting rod
combinations, do not change the piston / piston pin
combination and do not reuse the old piston pin.
f Attach the piston to the connecting rod with the
piston front mark and the connecting rod front mark
on the same side.
f Heat the connecting rod small end to a suitable
temperature to ensure smooth installation.
4. Install piston ring with the piston ring expander.
f New piston rings with "Top" uppermost — use
commercially available pliers.
f Position ring gaps:
1 — Compression rings 180°to each other as
illustrated.
2 — Offset oil control rings 25 to 50 mm/1 to 2 in.
from gap of second compression ring.
blue
white
blue
white
mm (in)
48.970 to 48.988 (1.9098–1.9105)
48.720 to 48.738 (1.9001–1.9008)
48.470 to 48.488 (1.8903–1.891)
26.460 to 26.580 (1.0319–1.036)
26.460 to 26.580 (1.0319–1.036)
26.460 to 26.580 (1.0319–1.036)
26.338 to 26.390 (1.0271–1.0292)
f After installation, apply engine oil to the entire
circumference of the piston rings. Check to see that
all the rings rotate smoothly.
5. Install piston and connecting rod assembly.
f Insert the bearings into the connecting rods and
caps. Apply new engine oil to the bearing faces and
nuts.
f Tighten the connecting rod cap nuts in 3 steps:
1st step : 35 N·m (26 lb ft)
2nd step: 45°
3rd step: 15°
015RW026