Inspection; Connecting Rod Bearings; Standard Procedure; Connecting Rod - Fitting - Chrysler Vehicle User Manual

9 - 34 ENGINE 2.4L
ENGINE BLOCK (Continued)

INSPECTION

ENGINE BLOCK
(1) Clean cylinder block thoroughly and check all
core hole plugs for evidence of leaking.
(2) If new core plugs are to be installed, (Refer to 9
- ENGINE - STANDARD PROCEDURE - ENGINE
CORE AND OIL GALLERY PLUGS).
(3) Examine block and cylinder bores for cracks or
fractures.
(4) Check block deck surfaces for flatness. Deck
surface must be within service limit of 0.1 mm (0.004
in.).
CYLINDER BORE
NOTE: The cylinder bores should be measured at
normal room temperature, 21°C (70°F).
The cylinder walls should be checked for out-of-
round and taper with Tool C119 or equivalent (Fig.
38) (Refer to 9 - ENGINE - SPECIFICATIONS). If
the cylinder walls are badly scuffed or scored, the
cylinder block should be replaced, and new pistons
and rings fitted.
Fig. 38 Checking Cylinder Bore Size
Measure the cylinder bore at three levels in direc-
tions A and B (Fig. 38). Top measurement should be
10 mm (3/8 in.) down and bottom measurement
should be 10 mm (3/8 in.) up from bottom of bore.
(Refer to 9 - ENGINE - SPECIFICATIONS).

CONNECTING ROD BEARINGS

STANDARD PROCEDURE

CONNECTING ROD - FITTING

(1) For measuring connecting rod bearing clear-
ance procedure and use of Plastigage(Refer to 9 -
ENGINE - STANDARD PROCEDURE). For bearing
clearance refer to Engine Specifications. (Refer to 9 -
ENGINE - SPECIFICATIONS)
NOTE: The rod bearing bolts should not be reused.
(2) Before installing the NEW bolts the threads
should be oiled with clean engine oil.
(3) Install each bolt finger tight then alternately
torque each bolt to assemble the cap properly.
(4) Tighten the bolts to 27 N·m PLUS 1/4 turn (20
ft. lbs. PLUS 1/4 turn) Do not use a torque
wrench for last step.
(5) Using a feeler gauge, check connecting rod side
clearance (Fig. 39). Refer to clearance specifications
(Refer to 9 - ENGINE - SPECIFICATIONS).
Fig. 39 Connecting Rod Side Clearance
TJ