Chrysler PT Cruiser. Manual — part 712
REMOVAL
(1) Using a suitable ring expander, remove upper
and intermediate piston rings (Fig. 90).
(2) Remove the upper oil ring side rail, lower oil
ring side rail and then oil ring expander from piston.
(3) Clean ring grooves of any carbon deposits.
INSTALLATION
NOTE: The identification mark on face of upper and
intermediate piston rings must point toward top of
piston.
Install rings with manufacturers identification
mark facing up, to the top of the piston (Fig. 91).
CAUTION: Install piston rings in the following
order:
1. Oil ring expander.
2. Upper oil ring side rail.
3. Lower oil ring side rail.
4. No. 2 Intermediate piston ring.
5. No. 1 Upper piston ring.
(1) Install oil ring expander (Fig. 91).
(2) Install upper side rail first and then the lower
side rail. Install the side rails by placing one end
between the piston ring groove and the oil ring
expander. Hold end firmly and press down the por-
tion to be installed until side rail is in position. Do
not use a piston ring expander (Fig. 92).
(3) Install No. 2 piston ring and then No. 1 piston
ring (Fig. 91).
Fig. 90 Piston Rings—Removing and Installing
Fig. 91 Piston Ring Installation
1 - NO. 1 PISTON RING
2 - NO. 2 PISTON RING
3 - SIDE RAIL
4 - OIL RING
5 - SPACER EXPANDER
Fig. 92 Installing Side Rail
1 - SIDE RAIL END
9 - 128
ENGINE 2.4L DOHC
PT
PISTON RINGS (Continued)
(4) Position piston ring end gaps as shown in (Fig.
93).
(5) Position oil ring expander gap at least 45° from
the side rail gaps but not on the piston pin center or
on the thrust direction. Staggering ring gap is impor-
tant for oil control.
STRUCTURAL COLLAR
REMOVAL
STRUCTURAL COLLAR—AUTOMATIC TRANSAXLE
EQUIPPED
(1) Raise vehicle on hoist.
(2) Remove bolts attaching bending strut to engine
and transaxle (Fig. 94).
(3) Remove bolts attaching collar and strut to
engine, oil pan, and transaxle (Fig. 94). Remove strut
and collar.
STRUCTURAL COLLAR—MANUAL TRANSAXLE
EQUIPPED
(1) Raise vehicle on hoist.
(2) Remove bolts attaching bending strut to engine
and transaxle (Fig. 95). Remove strut.
(3) Remove bolts attaching collar and clutch slave
cylinder to transaxle (Fig. 95).
(4) Remove remaining bolts attaching collar to oil
pan and transaxle (Fig. 95). Remove collar.
Fig. 93 Piston Ring End Gap Position
1 - GAP OF LOWER SIDE RAIL
2 - NO. 1 RING GAP
3 - GAP OF UPPER SIDE RAIL
4 - NO. 2 RING GAP AND SPACER EXPANDER GAP
Fig. 94 Structural Collar and Bending Strut—
(Automatic Transaxle Equipped)
1–8 – BOLT TIGHTENING SEQUENCE
9 – TRANSAXLE
10 – COLLAR
11 – OIL PAN
12 – STRUT
Fig. 95 Structural Collar and Bending Strut -
(Manual Transaxle Equipped)
1–5 – BOLT TIGHTENING SEQUENCE
6 – HYDRAULIC CLUTCH SLAVE CYLINDER
7 – TRANSAXLE
8 – POWER STEERING HOSE
9 – COLLAR
PT
ENGINE 2.4L DOHC
9 - 129
PISTON RINGS (Continued)
INSTALLATION
STRUCTURAL COLLAR—AUTOMATIC TRANSAXLE
EQUIPPED
CAUTION: Torque procedure for the structural collar
and bending strut must be followed or damage
could occur to oil pan, collar, and/or bending strut.
(1) Perform the following steps for installing struc-
tural collar and bending strut. Refer to (Fig. 94):
• Step 1: Place collar into position between trans-
axle and oil pan. Install collar to transaxle bolt (1),
hand start only.
• Step 2: Position power steering hose support
bracket (Fig. 96) and install collar to oil pan bolt (4),
hand tight only.
• Step 3: Position bending strut in place and
hand start only bolt (3) into the upper transaxle
hole.
• Step 4: Install bolt (2), through strut and collar,
hand start only.
• Step 5: Install bolt (6), strut to cylinder block,
hand tight only.
• Step 6: Position power steering hose support
bracket (Fig. 96) and install the remaining collar to
oil pan bolt (5), hand tight only.
• Step 7: Final torque collar to transaxle bolts
(1–3), to 101 N·m (75 ft. lbs.)
• Step 8: Install bolts (7) and (8), through strut
and into cylinder block.
• Step 9: Final torque bolts (4–8) to 61 N·m (45 ft.
lbs.).
(2) Lower vehicle.
STRUCTURAL COLLAR—MANUAL TRANSAXLE
EQUIPPED
CAUTION: Torque procedure for the structural collar
and bending strut must be followed or damage
could occur to oil pan, collar, and/or bending strut.
(1) Perform the following steps for installing struc-
tural collar and bending strut. Refer to (Fig. 95):
• Step 1: Place collar into position between trans-
axle and oil pan. Install collar to transaxle bolt (1),
hand start only.
• Step 2: Position power steering hose support
bracket (Fig. 95) and install collar to oil pan bolt (2),
hand tight only.
• Step 3: Position clutch slave cylinder into
mounting position and install bolts (3) and (4) hand
tight only.
• Step 4: Position power steering hose support
bracket and install the remaining collar to oil pan
bolt (5) hand tight only.
• Step 5: Final torque all bolts in sequence shown
in (Fig. 95) to the following torque values:
• Bolt (1) to 101 N·m (75 ft. lbs.)
• Bolts (2) and (5) to 61 N·m (45 ft. lbs.)
• Bolts (3) and (4) to 28 N·m (20 ft. lbs.)
(2) Lower vehicle.
Fig. 96 Power Steering Hose To Structural Collar
1 - POWER STEERING HOSE
2 - BOLT
9 - 130
ENGINE 2.4L DOHC
PT
STRUCTURAL COLLAR (Continued)
VIBRATION DAMPER
REMOVAL
(1) Remove accessory drive belts (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
(2) Remove crankshaft damper bolt.
(3) Remove damper by using Special Tool 1026 and
Insert 6827A (Fig. 97).
INSTALLATION
(1) Install crankshaft damper using Special Tool
6792 (M12 1.75 x 150 mm bolt, washer, thrust bear-
ing and nut).
NOTE: Lubricate the threads of the M12 1.75 x 150
mm bolt using Mopar
T
Nickel Anti-seize Compound
or equivalent, before beginning to press the damper
on.
(2) Apply Mopar
t Lock & Seal Adhesive (Medium
Strength Threadlocker) to crankshaft damper bolt
and tighten to 136 N·m (100 ft. lbs.) (Fig. 98).
(3) Install accessory drive belts (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
INSTALLATION).
ENGINE MOUNTING
DESCRIPTION
The engine mounting system (Fig. 100) and (Fig.
102) consists of a four-point system utilizing two
load-carrying mounts and two torque struts. The
load-carrying mounts are located on each frame rail.
The right mount is a hydro-elastic mount and left
mount is a conventional elastomeric isolator. The two
torque controlling struts are attached at the front of
the engine, straddling the right side load-carrying
mount. The upper strut connects to the suspension
strut tower and the lower to the suspension cross-
member.
OPERATION
The four-point engine mounting system minimizes
the transmission of structure-borne engine noise to
the passenger compartment. The load-carrying right
and left mounts dampen and isolate vertical motion
and vibration. The two struts absorbs torque reaction
forces and torsional vibrations.
Fig. 97 Crankshaft Damper—Removal
1 - SPECIAL TOOL 1026 3 - JAW PULLER
2 - SPECIAL TOOL 6827A INSERT
Fig. 98 Crankshaft Damper—Installation
1 - SPECIAL TOOL 6792
PT
ENGINE 2.4L DOHC
9 - 131
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст