NOTE: If the maximum permissible diameter is
exceeded, grind off contact surface of connecting
rod bearing cap by a Maximum of 0.02mm.
(3) Using a dial indicator, measure connecting rod
bearing basic bore, repair as necessary (Fig. 19).
NOTE: If excessive wear is present, press in new
connecting rod bushings.
(4) Measure connecting rod bushing inner diame-
ter (Fig. 19).
(5) Inspect wristpin bushing.
(6) Measure piston pin end play in connecting rod
bushing.
(7) Measure peak to valley height of connecting
rod bushing on inside.
CONNECTING ROD SPECIFICATIONS
Distance between middle
connecting rod bore to
connecting rod bushing
bore
148.970 mm to 149.030
mm
Width of connecting rod
bearing bore at
connecting rod bushing
bore
21.940 mm to 22 mm
Connecting rod bearing
shell basic bore
51.600 mm to 51.614
mm
Allowable out-of-
roundness and taper of
basic bore
.020 mm
Allowable twist of
connecting rod bearing
bore to connecting rod
bushing bore over a
length of 100 mm
.100 mm
Allowable variation of
axial parallelism of
connecting rod bearing
bore to connecting rod
bushing bore over a
length of 100 mm
.045 mm
Allowable difference in
weight of complete
connecting rod of an
engine
2g
Connecting rod inner
bushing
30.018 to 30.024 mm
Connecting rod outer
bushing
32.575 mm to 32.600
mm
Connecting rod basic
bore
32.500 mm to 32.525
mm
Piston pin play in
connecting rod
.018 mm to .024 mm
Peak-to-Valley height
(Rz) of connecting rod
bushing on inside
5
Connecting rod bolt
thread
M8x1
Fig. 19 MEASURING CONNECTING RODS
WG ENGINE 9a - 33
PISTON & CONNECTING ROD (Continued)
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