battery SUZUKI GRAND VITARA 1987 Service Repair Manual

O-2. STANDARD SHOP PRACTICES
1. Protect painted surfaces of the body, and
avoid staining or tearing seats. When working
on fenders and seats, be sure to cover them
up with sheets.
2. Disconnect negative terminal connection of
the battery when working on any electrical
part or component. This is necessary for
avoiding electrical shocks and short-circuit-
ing, and is very simple to accomplish: merely
loosen wing nut on negative terminal and
separate cable from terminal post.
3. In raising front or rear car end off the floor
by jacking, be sure to put the jack against
differential portion of axle housing.
NOTE:
Don’t get on the car, get under it or service it in
this state.
Fig. O-3 Front Side
4. To perform service with either front or rear
car end jacked up, be sure to place safety
stands under chassis frame so that body is
securely supported. Refer to below figures
for where to place safety stands. And then
check to ensure that chassis frame does not
slide on safety stands and the car is held
stable for safety’s sake.
WARNING:
Place chocks against both right and left
wheels on the ground from both front and
rear.
Fig. O-5 Front Side
&
Fig. O-6 Rear Side
Fig. 0.4 Rear Side
0-2

1-2. ENGINE AND EMISSION CONTROL
1. WATER PUMP BELT INSPECTION
AND REPLACEMENT
[INSPECTION]
1) Disconnect negative battery lead at battery.
2) Inspect belt for cracks, cuts, deformation,
wear and cleanliness. If any defect, replace.
Check belt for tension. The belt is in’ proper
tension if it deflects 6 to 9 mm (0.24 - 0.35
in.) under thumb pressure (about 10 kg or
22 lb.)..
Belt tension6 - 9 mm (0.24 - 0.35 in.)
specificationas deflection
pulley
3) If the belt is too tight or too loose, adjust it
to specification by adjusting alternator
position.
4) Tighten alternator adjusting bolt and pivot
bolts.
5) Connect negative battery lead to battery.
[REPLACEMENT]
1) Disconnect negative battery lead at battery.
2) Loosen alternator adjusting bolt and pivot
bolts.
3) Replace water pump belt.
4) Adjust belt tension to specification and
tighten alternator adjusting bolt and pivot
bolts.
5) Connect negative battery lead to battery.
2. CAMSHAFT TIMING BELT INSPECTION
1) Disconnect negative battery lead at battery.
2) Loosen fan drive belt, and remove 4 bolts
securing radiator shroud panel and 4 nuts
securing engine cooling fan & clutch. Then
remove radiator shroud and cooling fan &
clutch at the same time.
3) Remove water pump belt and pump pulley.
4) Remove crankshaft pulley by removing 4
pulley bolts. The crankshaft timing belt
pulley bolt at the center need not be loosen-
ed.2 1
‘31. Key
2. Crankshaft pulley
3. Pulley bolt
1-5

5) Remove timing belt outside cover. Inspect
the belt for damage or wear. When any
damage or wear is found on the belt, replace
it.
If belt replacement is necessary, be sure to
install the belt properly.
6) Remove cylinder head cover and loosen all
valve adjusting screws all the way to permit
free rotation of camshaft.
7) Turn crankshaft clockwise and align 4 marks
as shown.
Loosen tensioner bolt and nut but do not
remove.
9) Adjust valve lash to specification.
10) Install cylinder head cover and torque bolt
to specification.
11) Install timing belt outside cover and torque
bolts and nut to specification.
12) Install crankshaft pulley and torque bolts to
specification.
13) Install water pump pulley and belt.
14) Install radiator shroud and cooling fan &
clutch.
15) Adjust water pump belt tension to specifica-
tion.
16) Connect negative battery lead to battery.
3. VALVE LASH INSPECTION
1) Remove cylinder head cover.
2) Inspect intake and exhaust valve lash and
adjust as necessary.
1.“V” mark5.Tensioner nut
2.Timing mark6.Tensioner bolt
3.Arrow mark7.Turning direction4.Punch mark
8) To allow belt to be free of any slack, turn
crankshaft clockwise fully twice. After remov-
ing belt slack, tighten tensioner nut to 9 - 12
N-m (0.9- 1.2 kg-m, 7.0 - 8.5 lb-ft) first
and then tensioner bolt to 24 - 30 N-m
(2.4 - 3.0 kg-m, 17.5 - 21.5 lb-ft).
Then confirm again that 4 marks are match-
ed.
Valvelash specifi-cation
When coldWhen hot(Coolant tempe-(Coolant tempe---rature is 15 - 25’Crature is 60-68 c or 59 - or 140-154 f)
0.13-0.17mm 0.23-0.27mmIntake(0.0051- 0.0067 in)(0.009 - 0.011 in)
0.16-0.20 mm0.26 -0.30 mm(0.0102- Exhaust (0.0063 - 0.0079 in) 0.0118 in)
Screw lock nut 15 - 19 N.m
Adjusting screw
Valve ste
.5 lb-ft)
3) Install cylinder head cover and tighten bolts
to specification.
l-6

8. PCV VALVE REPLACEMENT
1) Disconnect crankcase ventilation hose from
PCV valve.
2) Remove PCV valve from intake manifold.
3) Wind sealing tape on thread of the new valve
and install it securely.
Tightenlng torque
for PCV valve
15-25 N.m
1.5-2.5 kg-m,
11 .O-18.0 lb-ft
4) Install hose and clamp it securely.
9. OXYGEN SENSOR REPLACEMENT
[Canadian specification vehicle]
When the odometer indicates 50,000 and 100,000
miles, replace oxygen sensor as follows.
CAUTION:
To avoid the danger of being burned, do
not touch the exhaust system when the
system is hot. This work should be perform-
ed when the system is cool.
1) Disconnect battery negative cable from
battery and disconnect oxygen sensor wire at
the coupler.
1. Oxygen sensor
2. Exhaust manifold
3. Coupler
2) Remove oxygen sensor from exhaust mani-
fold.
3) Install new gasket and oxygen sensor, and
tighten it to specification.
-Tightening45torque55 N-m
4.5-foroxygensensor5.5 kg-m
33.0-39.5 lb-ft
4) Connect oxygen sensor- wire at the coupler
securely and clamp its wire.
5) Connect negative cable to battery.
6) Start engine and check for gas leak.
For Canadian specification vehicle, turn on
check switch.
7) Run engine at 1,500 - 2,000 r/min for 30
sec. after warming up engine. Check to be
sure that “CHECK ENGINE” light flashes,
and turn off “CHECK ENGINE” light cancel/
check switch on steering column holder
bracket.
1. Cancel switch (U.S.A.)Check switch (Canada)
2. instrument panel
3. Steering columnholder bracket
4. Steering wheel
10. CATALYTIC CONVERTER INSPECTION
1) All accessories (wipers, heater, lights, etc.) are
out of service.
2) Warm up engine to normal operating tem-
perature.
3) Connect CO tester to mufler tail pipe.
4) With the engine warmed up, keep the engine
speed at 1,500 to 2,000 r/min. (t-pm). If the
CO concentration is 0.4% or less in this state,
the catalytic converter is in good condition.
If it exceeds the specification, refer to DIA-
GNOSIS (p. 5-15).
1-10

1. CHARCOAL CANISTER REPLACEMENT
WARNING:
The following cautions should be always
observed.
l Disconnect negative cable at battery.
l DO NOT smoke and place “NO SMOK-
ING” signs near work area.
l Be sure to have COZ fire extinguisher
handy.
l Wear safety glasses.
l To release the fuel vapor pressure in
fuel tank, remove the fuel tank cap and
then reinstall it.
1) Disconnect 3 hoses from canister.
2) Remove canister from car body.
3) Install new canister.
4) Connect 3 hoses to canister securely.
5) Clamp them securely.
//valve
To fuel tank
12. EMISSION-RELATED HOSES AND
TUBES INSPECTION
Check each vacuum hose and tube for secure
connection. Also, check that it is free from any
bend or damage.
Correct faulty condition, if any.
13. EXHAUST GAS RECIRCULATION (EGR)
SYSTEM INSPECTION
NOTE:
l Before checking, confirm that altitude is not
higher than 1,220 m (4,088 ftt) (atmospheric
pressure is below 680mmHg) and gear shift
lever is at neutral position.
o When performing this check at higher than
1,220 m (4,000 ft) altitude, be sure to dis-
connect HAC coupler.
.
1) Run engine when it is cool (coolant tempe-
rature is below 55°C (131°F)) and check
that EGR valve diaphragm is not operating in
this state, by touching diaphragm with
finger.
WARNING:
If EGR valve is hot, it may be necessary to
wear gloves to avoid burning finger.
1. EGR valve
22. Diaphragm
Checking EGR valve diaphragm
2) Warm up engine to normal operating tempe-
rature and race it after warming up. Then
check to be sure that diaphragm moves
toward @ in below figure during acceleration
and toward @ during deceleration.
l- 11

21. FUEL TANK CAP GASKET INSPECTION
AND REPLACEMENT
Visually inspect gasket of fuel tank cap. If it is
damaged or deteriorated, replace it with new
one.
22. AIR CLEANER ELEMENT
REPLACEMENT
1) Remove air cleaner cap.
2) Take cleaner element @ out of air cleaner
case.
3) Install new cleaner element @ into cleaner
case.
4) Install air cleaner cap securely.
23. THERMOSTATICALLY CONTROLLED
AIR CLEANER SYSTEM INSPECTION
Check thermostatically controlled air cleaner
system for proper operation. Refer to p. 5-19
for checking procedure.
24. CARBURETOR CHOKE SYSTEM
LUBRICATION AND INSPECTION
1) Remove air intake case, and lubricate rotating
paItS.
2) Check choke for proper operation.
Refer to p. 4-22 for checking procedure.
25. FUEL FILTER REPLACEMENT
This work must be performed in a well
1) Disconnect negative cable from battery.
2) Remove fuel tank cap to release fuel vapor
pressure in fuel tank. After releasing, reinstall
the cap.
3) Disconnect inlet and outlet hoses from fuel
filter located at the front part of fuel tank,
inside the right-hand side of chassis.
4) Remove fuel filter with clamp.
5) Install new filter with clamp, and connect
inlet and outlet hoses to fuel filter.
NOTE:
The top connection is for the outlet hose, the
lower one for the inlet hose.
6) Connect negative cable to battery.
7) After installation, start engine and check it
for leaks.
26. FUEL LINES AND CONNECTIONS
INSPECTION AND REPLACEMENT
[INSPECTION]
Visually inspect fuel lines and connections for
evidence of fuel leakage, hose cracking, and
damage. Make sure all clamps are secure.
Repair leaky joints, if any.
Replace hoses that are suspected of being
cracked.
[REPLACEMENT]
WARNING:
The following cautions should be always
observed.
l Disconnect negative cable at battery.
l DO NOT smoke and place “NO SMOK-
ING” signs near work area.
l Be sure to have CO2 fire extinguisher
handy.
0 Wear safety glasses.
l To release the fuel vapor pressure in fuel
tank, remove the fuel tank cap and
then reinstall it.
1-14

2-1. ENGINE
Cond it ion
Poor starting
(Hard starting)
Possible cause
Starter will not run
1. Main fuse blown off
2. Contact not closing in main switch, or this
switch open-circuited
3. Run-down battery
4. Defective magnetic switch of starter
5. Loose battery terminal connection
6. Defective brushes in starter
7. Loose battery cord connection
8. Open in field or armature circuit of starter.
Correction
Replace
Repair or replace
Recharge
Replace
Clean and retighten
Replace
Retighten
Repair or replace
No sparking
1. Defective spark plugAdjust gap, or replace
2. High tension cord short-circuited (grounded)Repair or replace
3. Cracked rotor or cap in distributorReplace
4. Defective signal generator or ignitorReplace
5. Maladjusted signal rotor air gap.Adjust
6. Contact not closing positively in main switch,Replace
or this switch open-circuited
7. Loose or blown fuseSet right or replace
8. Improper ignition timingAdjust
9. Defective ignition coil.Replace
Faulty intake and exhaust systems
1. Carburetor out of adjustment
2. Fuel pump not discharging adequately
3. Clogged fuel filter
4. Defective choke mechanism
5. Loose intake manifold
6. Dirty and clogged carburetor
7. Float level out of adjustment
8. Clogged fuel hose or pipe
9. Not enough fuel in the tank
10. Malfunctioning fuel cut solenoid valve
Adjust
Replace
Clean, or replace
Repair or replace
Retighten
Disassemble and clean
Adjust
Clean or replace
Refill
Check solenoid valve for
proper operation and
replace if necessary
Abnormal engine internal condition
1. Ruptured cylinder head gasket
2. Improper valve clearance
3. Weakened or broken valve spring
4. Loose manifold, permitting air to be
drawn in
5. Worn pistons, rings or cylinders
Replace
Adjust
Replace
Retighten and, as neces-
sary, replace gasket
Replace worn rings and
pistons and rebore as
necessary
2-2

Condition
Wander or poor
steering stability
Low or uneven trim
height
Ride too soft
Suspension bottoms
Body leans or sways
in corners
Possible cause
4. Loose stabilizer bar
5. Broken or sagging springs
6. Steering gear box adjustment
7. Front wheel alignment
1. Broken or sagging springs
2. Overloaded
3. Incorrect springs
1. Faulty shock absorbers
1. Overloaded
2. Faulty shock absorbers
3. Incorrect, broken or sagging springs
1. Loose stabilizer bar
2. Faulty shock absorbers or mounting
3. Broken or sagging springs
4. Overloaded
Correction
Tighten or replace stabilizer
bar or bushs
Replace spring
Check or adjust steering gear
box torque
Check front wheel alignment
Replace
Check loading
Replace
Replace
Checking loading.
Replace
Replace
Tighten stabilizer bar bolts or
replace bushes
Replace shock absorbers or
tighten mounting
Replace
Check loading
STARTING MOTOR
Condition
Starter runs but
pinion will not mesh
into ring gear.
Starter will not run
at all, or runs but
runs too slow to
crank with full
force.
Possible cause
1. Worn pinion of starter clutch.
2. Defective splines resulting in sticky
pinion plunging motion.
3. Worn bush.
4. Wrong pinion plunging position.
5. Worn teeth of ring gear.
Battery trouble
1, Poor contact in battery terminal
connection
2. Loose ground cable connection
3. Battery run down
4. Battery voltage too low due to battery
deterioration
Correction
Replace.
Repair or replace.
Replace.
Adjust
Replace.
Repair or retighten
Retighten
Recharge
Replace
Ignition switch trouble
1. Poor contacting actionReplace
2. Lead wire socket loose in placeRetighten
3. Opne-circuit between ignition switch andRepair
magnet switch
2-10.
2-16

Condition
Starter will not run
at all, or runs but
runs too slow to
crank with full
force
Starter does not
stop running.
2-11. ALTERNATOR
Condition
Battery quickly
becomes over-
discharged.
Charge light does not
light with ignition ON
and engine off
Alternator noise
Possible cause
Magnet switch trouble
1. Lead wire socket loose in place
2. Burnt contact plate, or poor contacting
action
3. Open-circuit in pull-in coil
4. Open-circuit in holding coil
Starter proper trouble
1. Brushes seating poorly or worn down
2. Burnt commutator
3. Open-circuit in armature winding
4. Worn-down starter.
1. Fused contact points of magnet-switch
contact plate
2. Short-circuit between turns of magnet-
switch coil (layer short-circuit)
3. Failure of returning action in ignition
switch
Possible cause
1. Loose or broken “V” belt
2. Battery cables loose, corroded or worn
3. Low level of battery electrolyte
4. Defective battery cell plates
5. Insufficient contact in battery terminal
connection.
6. Excessive electrical load
7. IC regulator or alternator faulty
8. Defective idle up system
1. Fuse blown
2. Light burned out
3. Loose wiring connection
4. IC regulator faulty
1. Worn, loose or otherwise defective bearings
Correction
Retighten
Replace, or repair
Replace
Replace
Repair or replace
Repair or replace
Replace
Replace
Repair or replace
Replace
Replace
Correction
Adjust or replace
Repair or replcae
Replace
Replace the battery
Clean and retighten
Check charging system
Replace
Repair or replace
Check fuse
Replace light
Tighten loose connection!
Replace
i
Replace
2-17

3-3. ENGINE REMOVAL
1) Disconnect negative (-) and positive (+)
cords from battery terminals.
‘)From starter motor terminals, disconnect
black/yellow lead wire and positive (+)
battery cord.
Disconnect coupler and white lead wire
from alternator terminals.
Disconnect lead wires from water tempera-
ture gauge and thermal switch. The gauge
and switch are on intake manifold.
Disconnect earth lead wire from intake
manifold.
5) Disconnect couplers of carburetor fuel cut
solenoid valve, vent solenoid valve and
mixture control solenoid valve, and dis-
connect couplers from TWSVS and VSV.
6) Remove warm air hose.
) Disconnect breather hose from air cleaner
case.
,) Remove air intake case from carburetor
body and air inlet hose.
1) Disconnect accelerator cable from carbure-
tor.
10) Disconnect vacuum hoses of TCAC and
canister from intake manifold.
11) Remove fuel tank filler cap to release fuel
vapor pressure in fuel tank. After releasing,
reinstall it. Disconnect fuel feed and return
hoses from fuel pump.
12) Disconnect lead wire from oil pressure unit
terminal and oxygen sensor lead wire at the
coupler.
13) Disconnect lead wires of back-up light
switch and fifth switch at their couplers.
14) Disconnect distributor lead wire at the
coupler.
15) Pull off high-tension cord from ignition coil.
16) Loosen radiator drain plug to drain cooling
water,
17) Disconnect water hoses from thermostat
cap and water inlet pipe. After removing
cooling fan & clutch and fan shroud, remove
radiator.
Fig. 3-3- 1
Fig. 3-3-2
16) Disconnect heater hoses from heater unit
outlet pipe and intake manifold.
Fig. 3-3-3
3)
4)
3-6