fuel CHEVROLET DYNASTY 1993 Service Manual

shaft end play. A sintered iron (TBI engine and steel
billet Turbo III engines) timing belt sprocket is
mounted on the cam nose, and a hydrodynamic oil
seal is used for oil control at the front of the cam-
shaft. ACCESSORY SHAFT: The iron accessory shaft
has two bearing journals and is housed in the for-
ward facing side of the block. A hydrodynamic seal,
installed in an aluminum housing attached to the
block, provides retention, shaft thrust, and oil con-
trol. The accessory shaft is driven by the timing belt
through a sintered iron (TBI engine and steel billet
Turbo III engines) sprocket mounted on the nose of
the accessory shaft. The accessory shaft in turn
drives the oil pump and distributor on 2.2/2.5L and
2.5L FFV and the oil pump only on Turbo III. VALVES: The valves are actuated by roller cam
followers which pivot on stationary hydraulic lash
adjusters. The valve train with 40.6 mm (1.60 inch)
diameter intake valves and 35.4 mm (1.39 inch) di-
ameter exhaust valves employ viton rubber valve
stem seals except 2.5L FFv . the 2.5L FFV valve
stem seals are made of special rubber compound
which resist the deteriorating effects of methanol
fuel by-products that enter the oil during combus-
tion. Valve springs, spring retainers, and locks are
conventional. For Turbo III engines the valves are
actuated by roller tipped rocker arms with hydraulic
lash adjusters which pivot on a shaft. The valve train
with 33.88 mm (1.33 in.) diameter intake valves are
arranged in line opposite of the 29.26 mm (1.15 in.)
diameter exhaust valves employ locking valve stem
seals. Valve springs, spring retainers, and locks are
not interchangeable with other engines. BALANCE SHAFTS: 2.2 Turbo III and 2.5L en-
gines are equipped with two counter rotating balance
shafts installed in a carrier attached to the lower
crankcase. The shafts are interconnect through
gears. These gears are driven by a short chain from
the crankshaft, to rotate at two times crankshaft
speed. This counterbalances certain engine recipro-
cating forces. INTAKE MANIFOLDS:
All intake manifolds are
aluminum castings, attached to the cylinder head
with eight bolts. N.A. engines use a four branch de-
sign. This long branch fan design enhances low and
midspeed torque. It also features an integrally cast
water crossover passage to warm incoming fuel/air
mixture, plus an EGR mounting boss and PCV inlet. The Turbo III engine intake manifold is a log type
with tuned runners. The manifold is machined to ac-
cept fuel injectors near the ports of each cylinder. EXHAUST MANIFOLDS: The exhaust manifolds
are made of nodular cast iron for strength and high
temperatures. All naturally aspirated (N.A.) and tur-
bocharged engines exit exhaust gasses through a ma-
chined, articulated joint connection to the exhaust
pipe. 2.2/2.5L and 2.5L FFV manifolds intermesh
with the intake manifold at the cylinder head. N.A. engines use a four branch design with cylin-
ders one and four joined and cylinder two and three
joined to exit at the outlet. The Turbo III engine exhaust manifold also carries
the turbocharger. This manifold has a modified log
type collector with exhaust gasses directed to and
through the turbocharger to exit the conical (articu-
lated joint) outlet machined into the turbocharger ex-
haust elbow. ENGINE LUBRICATION: Refer to Group 0 Lu-
brication and Maintenance for recommended oil to be
used in various engine application. System is full
flow filtration, pressure feed type. The oil pump is
mounted within the crankcase and driven by the ac-
cessory shaft. Pressurized oil is then routed through
the main oil gallery, running the length of the cylin-
der block, supplying main and rod bearings with fur-
ther routing (for 2.2L turbo III and 2.5L engines) to
the lower balance shaft assemblies. Pistons are lubri-
cated from directed holes in the connecting rod as-
semblies. Camshaft and valve mechanisms are
lubricated from a full-length cylinder head oil gallery
supplied from the crankcase main oil gallery.
9 - 10 2.2/2.5L ENGINE Ä

² Drive shaft distress: See Driveshafts in Suspension,
Group 2.
² Any front end structural damage (after repair).
² Insulator replacement.
ENGINE MOUNT INSULATOR ADJUSTMENT
(1) Remove the load on the engine motor mounts by
carefully supporting the engine and transmission as-
sembly with a floor jack. (2) Loosen the right engine mount insulator vertical
fasteners, and the front engine mount bracket to front
crossmember screws and nuts. Left engine mount insulator is sleeved over
shaft and long support bolt to provide lateral
movement adjustment with engine weight re-
moved or not. (3) Pry the engine right or left as required to achieve
the proper drive shaft assembly length. See Drive
Shaft in Suspension Group 2 for driveshaft identifica-
tion and related assembly length measuring. (4) Tighten right engine mount insulator vertical
bolts to 68 N Im (50 ft. lbs.). Then tighten front engine
mount screws and nuts to 54 N Im (40 ft. lbs.) and
center left engine mount insulator. (5) Recheck drive shaft length.
ENGINE ASSEMBLY
REMOVAL
(1) Disconnect battery.
(2) Scribe hood hinge outline on hood and remove
hood. (3) Drain cooling system.
(4) Remove hoses from radiator and engine.
(5) Remove radiator and fan assembly.
(6) Remove air cleaner and hoses.
(7) Remove air conditioning compressor mounting
bolts and set compressor aside, if equipped. (8) Remove power steering pump mounting bolts
and set pump aside (9) Remove oil filter.
(10) Disconnect fuel line, heater hose and acceler-
ator cable. (11) Disconnect all electrical connections and har-
nesses at throttle body and engine. (12) Manual Transmission
(a) Disconnect clutch cable.
(b) Remove transmission case lower cover.
(c) Disconnect exhaust pipe at manifold.
(d) Disconnect starter and lay aside.
(e) Install transmission holding fixture.
(13) Automatic Transmission
(a) Disconnect exhaust pipe at manifold.
(b) Disconnect starter and lay aside.
(c) Remove transmission case lower cover.
(d) Mark flex plate to torque converter.
(e) Remove screws holding torque converter to
flex plate.
(14) Attach C clamp on front bottom of torque con-
verter housing to prevent torque converter from com-
ing out. (15) Install transmission holding fixture.
(16) Remove right inner splash shield (Fig. 5).
(17) Remove ground strap.
(18) To lowerengine separate right engine
bracket from yoke bracket To raiseengine remove
long bolt through yoke and insulator. IF INSULA-
TOR TO RAIL SCREWS ARE TO BE REMOVED,
MARK INSULATOR POSITION ON SIDE RAIL TO
INSURE EXACT INSTALLATION (Fig. 4). (19) Remove transmission case to cylinder block
mounting screws.Fig. 5 Right Inner Splash Shield
Fig. 4 Left Insulator Movement
Ä 2.2/2.5L ENGINE 9 - 13

CAUTION: Make sure clutch cable has been discon-
nected. (20) Remove front engine mount screw and nut.
(21) Remove manual transmission damper.
(22) Remove left insulator through bolt from inside
wheelhouse or insulator bracket to transmission
screws. (23) Remove engine from vehicle.
INSTALLATION
(1) Install hoist to the engine and lower engine
into the engine compartment. SEE: ENGINE MOUNT RUBBER INSULATORS,
THIS GROUP. (2) Align engine mounts and install but do not
tighten until all mounting bolts have been installed.
(3) Install transmission case to cylinder block
mounting screws. Tighten to 95 N Im (70 ft. lbs.)
torque. (4) Remove engine hoist and transmission holding
fixture. (5) Install ground strap.
(6) Install right inner splash shield.
(7) Connect starter. See Electrical Group 8 for in-
stallation. (8) Connect exhaust system. See Exhaust Systems
Group 11 for installation. (9) Manual Transmission: Install transmission
case lower cover. Automatic Transmission: Remove C clamp from
torque converter housing. Align flexplate to torque
converter and install mounting screws. Tighten to 75
N Im (55 ft. lbs.) torque.
(10) Manual Transmission: Connect clutch cable.
See Clutch Group 6. (11) Install power steering pump. Refer to Cooling
System Group 7, Accessory Drive Section for belt
tension adjustment. (12) Connect fuel line, heater hose, and accelerator
cable. (13) Connect all electrical connections and har-
nesses at throttle body and engine. (14) Install oil filter. Fill engine crankcase with
proper oil to correct level. (15) Install air conditioning compressor (if
equipped). See Heater and Air Conditioning, Group
24 for installation. (16) Install air cleaner and hoses.
(17) Install radiator and shroud assembly . Install
radiator hoses. Fill cooling system. See Cooling Sys-
tem Group 7 for filling procedure. (18) Install hood.
(19) Connect battery.
(20) Start engine and run until operating temper-
ature is reached. (21) Adjust transmission linkage, if necessary.
SOLID MOUNT COMPRESSOR BRACKET SERVICE
When service procedures require solid mount
bracket removal and installation for example: cylin-
der head removal, etc., it is important that bracket
fasteners numbered 1 through 7 (Fig. 4) be removed
and installed in sequence, as instructed in Remove
and Install.
ACCESSORIES REMOVAL
(1) Remove (and install/adjust) belts,see Accessory
Drive Belts in Cooling System,Group 7. (2) Remove air conditioning compressor (in vehicle
with lines and set aside) (Fig. 6). (3) Remove generator pivot bolt and remove gener-
ator (in vehicle: turn wiring side up and disconnect,
then rotate generator, pulley end towards engine and
remove). (4) Remove air conditioner compressor belt idler.
SOLID MOUNT BRACKETÐREMOVAL (FIG. 4)
(1) Remove right engine mount yoke screw (see
Engine Remove Fig. 3) securing engine mount sup-
port strut to engine mount bracket. (2) Remove five side mounting bolts #1, #4 , #5,
#6, and #7 (Fig. 4). (3) Remove front mounting nut, #2, and remove
front bolt #3*. (4) Remove front mounting bolt and strut, rotate
solid mount bracket away from engine and slide
bracket on stud until #2 nut mounting stud until
free. Remove spacer from stud.
SOLID MOUNT BRACKETÐINSTALLATION
(1) Put spacer onto stud, then install bracket on
front (#2 nut) mounting stud and slide bracket over
timing belt cover into position. (2) Loosen assembly bracket to engine fasteners
(numbered #1 through #7 in Fig. 6). (3)
CAUTION: Fasteners MUST BE TIGHTENED IN SE-
QUENCE and to specified torque as follows :
² First Bolt #1 to 3.3 N Im (30 in. lbs.)
² Second Nut #2 and Bolt #3 to 54 N Im (40 ft. lbs.).
² Third Bolts #1 (second tightening) #4 and #5 to
54 N Im (40 ft. lbs.).
² Fourth Bolts #6 and #7 to 54 N Im (40 ft. lbs.).
(4) Install generator and compressor. Tighten com-
pressor mounting bracket bolts to 54 N Im (40 ft.
lbs.).
SOLID MOUNT COMPRESSOR BRACKET SERVICEÐTURBO III ENGINE
REMOVAL
(1) Disconnect negative battery cable
9 - 14 2.2/2.5L ENGINE Ä

valve spring retainer locks to become dislocated
when depressing the valve spring. Check and make
sure the locks are in their proper location. (3) Install valve cover as previously outlined in
this section.
VALVE SPRINGS AND VALVE STEM SEALS
REMOVAL
(1) Remove rocker arms as previously outlined in
this section. (2) Rotate crankshaft until piston is at TDC on
compression. (3) With air hose attached to adapter tool installed
in spark plug hole, apply 90-120 psi air pressure. (4) Using Special Tool C-4682 (Fig. 12) compress
valve springs and remove valve locks. (5) Remove valve spring.
(6) Remove valve stem seal by gently prying side-
to-side with a screwdriver blade. Once dislodged from
guide post, seal may be easily removed.
INSTALLATION
CAUTION: Flexible Fuel Vehicle Valve use unique
valve stem oil seals they are green in color. Stan-
dard valve stem oil seals are NOT to be interchanged
with Flexible Fuel Vehicles engines.
(1) Install valve seals (Fig. 13) as outlined in step
(2) of Valve Gear Reassembly - After Valve Ser-
vice in this section.
(2) Using Special Tool C-4682 compress valve
springs only enough to install locks. Correct align-
ment of tool is necessary to avoid nicking valve
stems (air pressure required), piston at TDC. (3) Install rocker arms as previously outlined in
this section.
CYLINDER HEAD
REMOVAL
(1) Perform fuel system pressure release procedure
before attempting any repairs. Refer to Fuel Sys-
tem Group 14 (2) Disconnect negative battery cable. Drain cool-
ing system. Refer to Cooling System, Group 7. (3) Remove air cleaner and disconnect all vacuum
lines, electrical wiring and fuel lines from throttle
body. (4) Remove throttle linkage.
(5) Loosen power steering pump and remove belt.
(6) Remove power brake vacuum hose from intake
manifold. (7) Remove water hoses from water crossover.
(8) Raise vehicle and remove exhaust pipe from
manifold. (9) Remove power steering pump assembly and set
aside. (10) Disconnect coil wiring connector and coil wire
from coil. (11) Disconnect dipstick tube from thermostat
housing and ROTATEbracket from stud. DO NOT
bend the bracket or tube. (12) See Solid Mount Compressor Bracket in
STANDARD SERVICE PROCEDURES, this Group. (13) Remove cylinder head bolts.
INSPECT HEAD AND CAMSHAFT BEARINGJOURNALS
(1) Cylinder head must be flat within 0.1mm (.004
inch) (Fig. 14). (2) Inspect camshaft journals for scoring and jour-
nal caps for oversize markings. When servicing cyl-
inder head or camshaft, it is necessary to be certain
that oversized camshafts are used only in oversized
heads. Identify oversize components as follows:
Fig. 12 Removing and Installing Valve SpringFig. 13 Valve Stem Seals
9 - 26 2.2/2.5L ENGINE Ä

(8) Check the valve spring installed height after
refacing the valve and seat (Fig. 26).
CAUTION: If more than .5mm (.020 inch) must be
ground from the valve tip, check the clearance be-
tween the rocker arm and the valve spring retainer
if below 1.25mm (.050 inch), grind the rocker arm
ears according to the procedure described in Refac-
ing Valves and Valve Seats.
CLEANING
Clean all valve guides, valves and valve spring as-
semblies thoroughly with suitable cleaning solution
before reassembling.
VALVE GEAR REASSEMBLY AFTER VALVE SERVICE (1) Coat valve stems with lubrication oil and insert
in cylinder head. CAUTION: Flexible Fuel Vehicles use unique valve
stem oil seals they are green in color. Standard
valve stem oil seals are NOT to be interchanged with
Flexible Fuel Vehicles engines.
(2) Install new valve stem seals on all valves. The
valve stem seals should be pushed firmly and
squarely over valve guide. The lower edge of the seal
should be resting on the valve guide boss.
CAUTION: When oversize valves are used, the cor-
responding oversize valve seal must also be used.
Excessive guide wear may result if oversize seals
are not used with oversize valves.
(3) Install valve spring seats and springs and re-
tainers. Compress valve springs only enough to in-
stall locks, taking care not to misalign the direction
of compression. Nicked valve stems may result from
misalignment of the valve spring compressor.
CAUTION: When depressing the valve spring retain-
ers with Tool C-3422-B the locks can become dislo-
cated. Check to make sure both locks are in their
correct location after removing tool .
(4) Check installed height of springs. Measurement
is to be taken from the spring seat to the bottom of
the spring retainer. Correct height is 41.2mm to
42.7mm (1.62 to 1.68 inches). If seats have been re-
ground an additional spring seat may be required to
maintain correct installed spring height. (5) Install adjusters, rocker arms in order, and
camshaft as previously described, see Camshaft-In-
stall. Check for clearance between the projecting ears
(either side of valve tip) of the rocker arms and the
valve spring retainers. At least 1.25 mm (.050 inch)
clearance must be present, if necessary, the rocker
arm ears may be ground to obtain this clearance
(Fig. 26). (6) Checking dry lash. Dry lash is the amount of
clearance that exists between the base circle of an in-
stalled cam and the rocker arm roller when the ad-
juster is drained of oil and completely collapsed.
Specified dry lash is 0.62 to 1.52 mm (.024 to .060
inch). To completely collapse adjuster for dry lash
measurement, pry off retainer cap, disassemble,
drain the adjuster of oil, reassemble, and install. Af-
ter performing dry lash check, refill adjuster with oil
(do not reuse retainer cap/s) and allow 10 minutes for
adjuster/s to bleed down before rotating cam.
Fig. 25 Valve Tip to Spring Seat Dimensions
Fig. 26 Checking Spring Installed Height and Spring Retainer Clearance
9 - 30 2.2/2.5L ENGINE Ä

PISTON PINS
DISASSEMBLY Turbo III engine piston-pin-connecting rod assem-
blies should not be disassembled unless a malfunc-
tion is present or a damaged assembly component is
to be replaced. WARNING: APPROVED SAFETY GLASSES
MUST BE WORN DURING PISTON LOCK
RING REMOVAL OR INSTALLATION TO PRE-
VENT POSSIBLE INJURY FROM FLYING
PARTS.
(1) Carefully, remove piston pin lock rings from
piston, using a small screwdriver in removal notch
(Fig. 10). (2) Discard used lock ring.
(3) Following lock ring removal, attempt to slide
pin out of piston. If pin does not slide out freely by
hand;
² Check for burr on outer edge of lock ring groove. If
one is present, carefully scrape burr away with a
knife or other hand tool, being careful not to damage
lock ring retaining groove. (4) Slide out piston pin to complete disassembly.
(5) Inspect components, discard damaged or exces-
sively worn parts refer to specifications (Fig. 12). If a
piston is replaced, a new pin should be used.
PISTON PINS
REASSEMBLY
(1) Different lock rings are used for turbocharged
engine applications. Consult the Service Note, pro- vided with the lock ring service package, to select
the correct lock rings from the package for your ap-
plication.
(2) Carefully, install one NEWlock ring with gap
towards piston top in lock ring groove. Do not rein-
stall used lock rings. (3) Position connecting rod and slide in lightly oil
piston pinch (4) Install second NEWlock ring with gap towards
piston top in lock ring groove, use small screwdriver
if needed.
CAUTION: BOTH lock rings must be FULLY
SEATED in lock ring grooves or engine failure will
occur.
(5) Check piston pin end play pin movement be-
tween lock rings in assembly.
PISTON RINGÐREMOVAL
(1) ID mark on face of upper and intermediate pis-
ton rings must point toward piston crown. (2) Using a suitable ring expander, remove upper
and intermediate piston rings (Fig. 13). (3) Remove the upper oil ring side rail, lower oil
ring side rail and then oil ring expander from piston. (4) Clean ring grooves of any carbon deposits.
Fig. 11 Engine Piston PinsÐTurbo III, Naturally Aspirated and Flexible Fuel Vehicles
Fig. 12 Piston Pin Specifications
Fig. 13 Piston RingsÐRemoving and Installing
9 - 52 2.2/2.5L ENGINE Ä

FITTING RINGS
(1) Wipe cylinder bore clean. Insert ring and push
down with piston to ensure it is square in bore. The
ring gap measurement must be made with the ring
positioning at least 12mm (.50 inch) from bottom of
cylinder bore. Check gap with feeler gauge (Fig. 14).
Refer to specifications (Fig. 16 and 17). (2) Check piston ring to groove clearance: (Fig. 15).
Refer to specification (Figs. 16 and 17).
PISTON RINGSÐINSTALLATION
(1) The No. 1 and No. 2 piston rings have a differ-
ent cross section. Install rings with manufacturers
I.D. mark facing up, to the top of the piston (Fig. 13).
CAUTION: Install piston rings in the following or-
der:
(a) Oil ring expander.
(b) Upper oil ring side rail.
(c) Lower oil ring side rail.
(d) No. 2 Intermediate piston ring.
(e) No. 1 Upper piston ring. (2) Install the side rail by placing one end between
the piston ring groove and the expander. Hold end
Fig. 16 Piston Ring SpecificationsÐTurbo III
Fig. 17 Piston Ring SpecificationsÐ Naturally Aspirated and Flexible Fuel Vehicles
Fig. 18 Installing Side Rail
Fig. 14 Piston Ring Gap
Fig. 15 Piston Ring Groove Clearance
Ä 2.2/2.5L ENGINE 9 - 53

LEFT SIDE MOUNT
(1) Raise vehicle on hoist and remove left front
wheel. (2) Remove inter splash shield.
(3) Support the transmission with a transmission
jack. (4) Remove the insulator thru bolt from the mount.
(5) Remove the transmission mount fasteners and
remove mount. (6) Reverse removal procedure for installation. En-
sure that the slide tube is seated into the rail
bracket guides. Refer to (Fig. 3) for bolt tightening
specifications. (7) Engine mount adjustment, Refer to Engine
Mount Insulator Adjustment of this section.
ENGINE MOUNT RUBBER INSULATORS
Insulator location on (right side) and transmission
bracket (left side) are adjustable to allow right/left
drive train adjustment in relation to drive shaft as-
sembly length. Check and reposition right engine mount insulator
(left engine mount insulator is floating type and will
adjust automatically (Fig. 3). Adjust drive train posi-
tion, if required, for the following conditions:
² Drive shaft distress: See Driveshafts in Suspen-
sion, Group 2.
² Any front end structural damage (after repair).
² Insulator replacement.
ENGINE MOUNT INSULATOR ADJUSTMENT
(1) Remove the load on the engine motor mounts
by carefully supporting the engine and transmission
assembly with a floor jack. (2) Loosen the right engine mount insulator yoke
screw and two turns on yoke nut, then loosen the
front engine mount bracket to front crossmember
screws and nuts. Left engine mount insulator is sleeved over
shaft and long support bolt to provide lateral
movement adjustment with engine weight re-
moved or not. (3) Pry the engine right or left as required to
achieve the proper drive shaft assembly length. See
Drive Shaft in Suspension Group 2 for driveshaft
identification and related assembly length measur-
ing. (4) Tighten right engine mount insulator yoke nut
to 102 N Im (75 ft. lbs.). Then tighten front engine
mount screws and nuts to 54 N Im (40 ft. lbs.) and
center left engine mount insulator. (5) Recheck drive shaft length.
ENGINE ASSEMBLY
REMOVAL
(1) Disconnect battery.
(2) Mark hood position at hinges and remove hood. (3) Drain cooling system. Refer to Cooling System
Group 7 for draining procedure. (4) Disconnect all electrical connections.
(5) Remove coolant hoses from radiator and en-
gine. (6) Remove radiator and fan assembly.
(7) See Fuel System Group 14, For procedures to
release fuel pressure, disconnect fuel lines and accel-
erator cable. (8) Remove air cleaner assembly.
(9) Hoist vehicle and drain engine oil.
(10) Remove air conditioning compressor mounting
bolts and set compressor aside. (11) Disconnect exhaust pipe at manifold.
(12) Remove transmission inspection cover and
mark flex plate to torque converter position. (13) Remove screws holding torque converter to
flex plate and attach C-clamp on bottom of converter
housing to prevent torque converter from coming out. (14) Remove power steering pump mounting bolts
and set pump aside. (15) Remove two lower transmission to block
screws. (16) Remove starter.
(17) Lower vehicles and disconnect vacuum lines
and ground strap. (18) Install transmission holding fixture.
(19) Attach engine lifting hoist and support en-
gine. (20) Remove upper transmission case to block
bolts. (21) See Engine Mounting in (Fig. 2) and separate
mount/insulators as follows: (a) Mark RIGHT insulator on right yoke and en-
gine plate supports. Remove insulator to rails
screws. (b) Remove FRONT engine mount through bolt
and nut.
Fig. 3 Left Insulator Movement
Ä 3.0L ENGINE 9 - 69

(c) Remove LEFT insulator through bolt from in-
side wheelhouse or insulator bracket to transmis-
sion screws.
(22) Remove engine.
INSTALLATION
(1) Attach hoist and lower engine into engine com-
partment. (2) Align engine mounts and install but do not
tighten until all mounting bolts have been installed.
Tighten bolts to torque specified in (Fig. 2). (3) Install transmission case to cylinder block,
tighten bolts to 102 N Im (75 ft. lbs.) torque.
(4) Remove engine hoist and transmission holding
fixture. (5) Remove C clamp from torque converter hous-
ing. Align flex plate to torque converter and install
mounting screws. Tighten to 75 N Im (55 ft. lbs.)
(6) Install transmission inspection cover.
(7) Connect exhaust system at manifold.
(8) Install starter.
(9) Install power steering pump and air condition-
ing compressor. For belt installation Refer to Acces-
sory Belt Drive in Cooling System Group 7. (10) Lower vehicle and connect all vacuum lines.
(11) Connect all electrical connections including
ground strap. (12) Connect fuel lines and accelerator cable. (13) Install radiator and fan assembly. Connect fan
motor electrical lead. Install radiator hoses. Fill cool-
ing system. Refer to Cooling System Group 7 for fill-
ing procedure. (14) Fill engine crankcase with proper oil to cor-
rect level. (15) Install hood.
(16) Connect battery.
(17) Start engine and run until operating temper-
ature is reached. (18) Adjust transmission or linkage if necessary.
ACCESSORY DRIVE BELT SERVICE
REMOVAL
(1) Loosen Adjusting Lock Nut (Fig. 6).
(2) Turn adjusting jack screw counterclockwise to
reduce belt tension. Remove belt. (3) Inspect drive belt for wear and damage (Fig. 5).
(4) Installation: Adjust belt tension to 5/16 deflec-
tion between pulleys (Fig. 6). (5) Install breaker bar into 1/2 square opening in
tensioner. (6) Rotate tensioner clockwise to remove and in-
stall belt (Fig. 7).
Fig. 4 Accessories Mounting Brackets
9 - 70 3.0L ENGINE Ä

(2) Loosen the right engine mount insulator yoke
screw and 2 turns on yoke nut, then loosen the front
engine mount bracket to front crossmember screws and
nuts. Left engine mount insulator is sleeved over
shaft and long support bolt to provide lateral
movement adjustment with engine weight re-
moved or not. (3) Pry the engine right or left as required to achieve
the proper drive shaft assembly length. See Drive
Shaft in Suspension Group 2 for driveshaft identifica-
tion and related assembly length measuring. (4) Tighten right engine mount insulator yoke nut to
102 N Im (75 ft. lbs.). Then tighten front engine mount
screws and nuts to 54 N Im (40 ft. lbs.) and center left
engine mount insulator. (5) Recheck drive shaft length.
ENGINE ASSEMBLY
REMOVAL
(1) Disconnect battery.
(2) Mark hood position at hinges and remove hood.
(3) Drain cooling system. Refer to Cooling System,
Group 7 for procedure. (4) Disconnect all electrical connections.
(5) Remove coolant hoses from radiator and engine.
(6) Remove radiator and fan assembly.
(7) See Fuel System, Group 14, to release fuel pres-
sure. Disconnect fuel lines and accelerator cable. (8) Remove air cleaner assembly.
(9) Hoist vehicle and drain engine oil.
(10) Remove air conditioning compressor mounting
bolts and set compressor aside. (11) Disconnect exhaust pipe at manifold.
(12) Remove transmission inspection cover and
mark flex plate to torque converter position. For disas-
sembly procedure for the all wheel drive vehicle refer to
Group 21 Transaxle. (13) Remove screws holding torque converter to
flex plate and attach C-clamp on bottom of converter
housing to prevent torque converter from counting
out. (14) Remove power steering pump mounting bolts
and set pump aside. (15) Remove two lower transmission to block
screws. (16) Remove starter.
(17) Lower vehicles and disconnect vacuum lines
and ground strap. (18) Install transmission holding fixture.
(19) Attach engine lifting hoist and support en-
gine. (20) Remove upper transmission case to block
bolts. (21) See Engine Mounting in (Fig. 3) and separate
mount/insulators as follows: (a) Mark RIGHT insulator on right rails sup-
ports. Remove insulator to rails screws. (b) Remove FRONT engine mount through bolt
and nut. (c) Remove LEFT insulator through bolt from in-
side wheelhouse or insulator bracket to transmis-
sion screws.
(22) Remove engine.
INSTALLATION
(1) Attach hoist and lower engine into engine com-
partment. (2) Align engine mounts and install but do not
tighten until all mounting bolts have been installed.
Tighten bolts to torque specified in (Fig. 3). (3) Install transmission case to cylinder block,
tighten bolts to 102 N Im (75 ft. lbs.) torque.
(4) Remove engine hoist and transmission holding
fixture. (5) Remove C-clamp from torque converter hous-
ing. Align flex plate to torque converter and install
mounting screws. Tighten to 75 N Im (55 ft. lb-
s.)torque. Refer to Group 21 transaxle for the all
wheel drive installation procedure. (6) Install transmission inspection cover.
(7) Connect exhaust system at manifold.
(8) Install starter.
(9) Install power steering pump and air condition-
ing compressor. For belt installation see Accessory
Belt Drive in Cooling System Group 7. (10) Lower vehicle and connect all vacuum lines.
(11) Connect all electrical connections including
ground strap. (12) Connect fuel lines and accelerator cable.
(13) Install radiator and fan assembly. Reconnect
fan motor electrical lead. Reinstall radiator hoses.
Fill cooling system. See Cooling System Group 7 for
filling procedure. (14) Fill engine crankcase with proper oil to cor-
rect level.
Fig. 4 Left Insulator Movement
Ä 3.3/3.8L ENGINE 9 - 101