2001 SUZUKI GRAND VITARA wheel

ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE) 6-1-25
INJ PULSE WIDTH B2 At specified idle speed with no load after
warming up.2.0 – 3.3 msec
✱
At 2500 r/min with no load after warming up. 2.2 – 3.2 msec
THROTTLE POS
(Absolute Throttle Posi-
tion)With ignition switch ON/warmed up engine
stopped, accelerator pedal released9.8 – 18.2 %
With ignition switch ON/warmed up engine
stopped, accelerator pedal depressed fully72 – 87.2 %
TP SENSOR VOLT
(TP Sensor Output Volt-
age)With ignition switch ON/warmed up engine
stopped, accelerator pedal released0.49 – 0.91 V
✱
With ignition switch ON/warmed up engine
stopped, accelerator pedal depressed fully.3.76 – 4.36 V
O2S B1 S1
(HO2S-1 Output Voltage)At specified idle speed after warming up
0.05 – 0.95 V
O2S B1 S2
(HO2S-2 Output Voltage)When engine is running at 2000 r/min. for 3
min or longer after warming up.0.05 – 0.95 V
O2S B2 S1
(HO2S-2 Output Voltage)When engine is running at 2000 r/min. for 3
min or longer after warming up.0.05 – 0.95 V
O2S B2 S2
(HO2S-2 Output Voltage)When engine is running at 2000 r/min. for 3
min or longer after warming up.0.05 – 0.95 V
FUEL SYSTEM B1
(Fuel System Status)At specified idle speed after warming up.
Closed✱
FUEL SYSTEM B2
(Fuel System Status)At specified idle speed after warming up.
Closed
CALC LOAD
(Calculated Load Value)At specified idle speed with no load after
warming up.10 – 25 %
At 2500 r/min with no load after warming up. 14 – 23 %
TOTAL FT TRIM B1 At specified idle speed after warming up. –30 – +30 %✱
TOTAL FT TRIM B2 At specified idle speed after warming up. –30 – +30 %
MAP At specified idle speed after warming up. 25 – 35 kPa
CANIST PRG DUTY
(EVAP Canister Purge
Flow Duty)At specified idle speed after warming up.
0 %✱
VEHICLE SPEED. At stop. 0 km/h 0 MPH
FUEL CUT When engine is at fuel cut condition ON
✱
Other than fuel cut condition OFF
EGR VALVE At specified idle speed after warming up 0 %✱
BLOWER FAN Ignition switch ON, blower fan switch ON ON
✱
Ignition switch ON, blower fan switch OFF OFF
A/C CONDENSER FAN Ignition switch ON, A/C not operating OFF
✱
Ignition switch ON, A/C operating ON
PSP SWITCH Engine running at idle speed and steering
wheel at straight ahead positionOFF
✱
Engine running at idle speed and steering
wheel turned to the right or left as far as it
stopsON
A/C SWITCH
(if equipped)When A/C not operating OFF
✱
When A/C operating ON SCAN TOOL DATA CONDITIONNORMAL CONDITION/
REFERENCE VALUEOTHER

6-1-40 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE)
C51-1-10A/T input speed sensor (–)
(A/T vehicle)About 2.5 V Ignition switch ON
C51-1-11A/T input speed sensor (+)
(A/T vehicle)About 2.5 V Ignition switch ON
C51-1-12 Camshaft position sensor 1Deflects between
0 – 1 V and 4 – 6 VIgnition switch ON, crankshaft
turned slowly
C51-1-13 Camshaft position sensor 2Deflects between
0 – 1 V and 4 – 6 VIgnition switch ON, crankshaft
turned slowly
C51-1-14 Vehicle speed sensorDeflects between
0 – 1 V and over 4VIgnition switch ON, Rear right tire
turned slowly with rear left tire
locked
C51-1-15 EVAP canister purge valve 10 – 14 V Ignition switch ON
C51-1-16 IAC valve (stepper motor coil 4) – –
C51-1-17 IAC valve (stepper motor coil 3) – –
C51-1-18Transmission range switch “D”
(A/T vehicle)10 – 14 VIgnition switch ON, selector lever :
“D” range
0 – 1 VIgnition switch ON, selector lever :
Other than “D” range
C51-1-19Transmission range switch “N”
(A/T vehicle)10 – 14 VIgnition switch ON, selector lever :
“N” range
0 – 1 VIgnition switch ON, selector lever :
Other than “N” range
C51-1-20Shield wire ground for A/T output
speed sensor (A/T vehicle)––
C51-1-21Shield wire ground for A/T input
speed sensor (A/T vehicle)––
C51-1-22A/T output speed sensor (–)
(A/T vehicle)About 2.5 V Ignition switch ON
C51-1-23A/T output speed sensor (+)
(A/T vehicle)About 2.5 V Ignition switch ON
C51-1-24 Engine start signal10 – 14 V While engine cranking
0 – 1 V Other than above
C51-1-25 Power steering pressure switch10 – 14 V Ignition switch ON
0 – 1 VWith engine running at idle speed,
turning steering wheel to the right or
left as far as it stops
C51-1-26 4WD low switch0 – 1 VIgnition switch ON, Transfer lever :
4WD low range
10 – 14 VIgnition switch ON, Transfer lever :
4H or 2H range
C51-1-27Transmission range switch “L”
(A/T vehicle)10 – 14 VIgnition switch ON, selector lever :
“L” range
0 – 1 VIgnition switch ON, selector lever :
Other than “L” range
C51-1-28Transmission range switch “2”
(A/T vehicle)10 – 14 VIgnition switch ON, selector lever :
“2” range
0 – 1 VIgnition switch ON, selector lever :
Other than “2” range TERMINAL CIRCUIT NORMAL VOLTAGE CONDITION

6-1-100 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE)
Evap canister purge system inspection
1) Warm up engine to normal operating temperature.
2) Hoist vehicle so that all wheels rotate freely.
3) Set M/T in “Neutral” or A/T in “P” position and parking brake.
4) Disconnect purge hose (1) from EVAP canister.
5) Place finger against the end of disconnected hose (1) and
check that vacuum is not felt there when engine is running at
idle speed.
6) Release parking brake lever, set transfer in “2H” and M/T in
“1st” or A/T in “L”.
7) Also check that vacuum is felt when engine speed is
increased to higher than about 1,500 r/min. and keep it for 3
min. or more. If check result is not described in steps 5) and
7), check EVAP canister purge valve, wire harness and vac-
uum passage.
Vacuum passage inspection
Start engine and run it at idle speed. With finger placed against
vacuum nozzle (1), check that vacuum is applied.
If it is not applied, clean vacuum passage by blowing compressed
air.
WARNING:
Make sure that transfer is set to “2H” range position for
this check. If it is set to “4H” or “4L” position, front and
rear wheels turn at high speed and a very dangerous sit-
uation may occur.
1

6A2-18 ENGINE MECHANICAL (H27 ENGINE)
INSPECTION
Valve guides
Using a micrometer and bore gauge, take diameter readings on
valve stems and guides to check stem-to-guide clearance. Be
sure to take reading at more than one place along the length of
each stem and guide.
If clearance exceeds limit, replace valve and valve guide.
Valve stem-to-guide clearance :
INSTALLATION
1) Clean mating surface on cylinder head and cylinder block.
Remove oil, old gasket and dust from mating surface.
2) Install knock pin (4) to cylinder block.
3) Apply sealant “A” to cylinder head gasket (1) as shown in the
figure.
“A” : Sealant 99000-31150
Sealant amount (Width “w”) :
4 mm (0.158 in.)
4) Install new cylinder head gasket (1) to cylinder block as
shown in the figure. carved lot number (5) on cylinder head
gasket (1) should face up (toward cylinder head side).Standard Limit
Valve stem
diameterIntake 5.965 – 5.980 mm
(0.2348 – 0.2354 in.)–
Exhaust 5.940 – 5.955 mm
(0.2339 – 0.2344 in.)–
Valve guide
I.D.In & Ex 5.985 – 6.010 mm
(0.2356 – 0.2366 in.)–
Stem-to-guide
clearanceIntake 0.035 – 0.045 mm)
(0.0014 – 0.0018 in.)0.07 mm
(0.0027 in.)
Exhaust 0.060 – 0.070 mm
(0.0024 – 0.0028 in.)0.09 mm
(0.0035 in.)
[A] : RH ( No.2) bank
[B] : LH (No.1) bank
2. Crankshaft pulley side
3. Flywheel side

ENGINE MECHANICAL (H27 ENGINE) 6A2-19
5) Install cylinder head to block.
After applying oil to cylinder head bolts, tighten them gradu-
ally as follows.
a) Tighten all bolts to 53 N·m (5.3 kg-m, 38.5 lb-ft) according
to numerical order in the figure.
b) In the same manner as in a), tighten them to 84 N·m (8.4
kg-m, 61.0 lb-ft).
c) Loosen all bolts until tightening torque is reduced to 0 in
reverse order of tightening.
d) In the same manner as in a), tighten them to 53 N·m (5.3
kg-m, 38.5 lb-ft).
e) In the same manner as in a) again, tighten them to speci-
fied torque.
Tightening torque
Cylinder head bolt (a) : 105 N·m (10.5 kg-m, 76.0 lb-ft)
Cylinder head bolt (hex hole bolt) (b) :
11 N·m (1.1 kg-m, 7.5 lb-ft)
6) Install water outlet cap.
7) Check timing mark on crankshaft as shown in the figure.
8) Install valve lash adjuster, camshaft, CMP sensor and RH
bank 2nd timing chain.
Refer to “CAMSHAFT AND VALVE LASH ADJUSTER” and
“RH (NO.2) BANK 2ND TIMING CHAIN AND CHAIN TEN-
SIONER” in this section. For CMP sensor, refer to “CMP
SENSOR” in Section 6F2.
9) Install 1st timing chain.
Refer to “1ST TIMING CHAIN AND CHAIN TENSIONER” in
this section.
10) Install LH bank 2nd timing chain.
Refer to “LH (NO.1) BANK 2ND TIMING CHAIN AND CHAIN
TENSIONER” in this section.
11) Install timing chain cover.
Refer to “TIMING CHAIN COVER” in this section. NOTE:
Don’t forget to install (b) bolts as shown in the figure.
1. Hex hole bolt
2. Crankshaft pulley side
3. Flywheel side
[A] RH bank
[B] LH bank
1. Crank timing pulley key
2. Oil jet

6A2-20 ENGINE MECHANICAL (H27 ENGINE)
12) Install oil pan and oil pump strainer.
Refer to “OIL PAN AND OIL PUMP STRAINER” in this sec-
tion.
13) Install cylinder head cover.
Refer to “CYLINDER HEAD COVER” in this section.
14) Install exhaust manifold.
Refer to “EXHAUST MANIFOLD” in this section.
15) Install radiator outlet pipe, radiator, cooling fan and water
hose.
Refer to “COOLING WATER PIPES OR HOSES”, “RADIA-
TOR” and “COOLING FAN AND FAN CLUTCH” in Section
6B.
16) Install throttle body and intake manifold.
Refer to “THROTTLE BODY AND INTAKE MANIFOLD” in
this section.
17) Adjust water pump drive belt tension.
Refer to “COOLING FAN BELT TENSION CHECK AND
ADJUSTMENT” in Section 6B.
18) Adjust power steering pump drive belt tension.
Refer to “POWER STEERING PUMP DRIVE BELT” in Sec-
tion 3B1.
19) Adjust accelerator cable play and A/T throttle cable play.
Refer to “ACCELERATOR CABLE ADJUSTMENT” and “A/T
THROTTLE CABLE ADJUSTMENT (A/T VEHICLE)” in Sec-
tion 6E2.
20) Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been rein-
stalled.
21) Refill engine with engine oil, referring to “ENGINE OIL
CHANGE” in Section 0B.
22) Refill cooling system referring to “COOLING SYSTEM
FLUSH AND REFILL” in Section 6B.
23) Refill front differential housing with gear oil if drained, refer-
ring to “MAINTENANCE SERVICE” in Section 7E.
24) Connect negative cable at battery.
25) Check ignition timing and adjust as necessary, referring to
“IGNITION TIMING CHECK AND ADJUSTMENT” in Section
6F2.
26) Verify that there is no fuel leakage, water leakage, oil leak-
age and exhaust gas leakage at each connection.
27) Check wheel alignment, referring to “STEERING ANGLE” in
Section 3A.

6A2-30 ENGINE MECHANICAL (H27 ENGINE)
Main Bearings, Crankshaft and Cylinder Block
1. Cylinder block 6. Rear oil seal 11. O-ring [A]: Sealant application amount
2. Lower crankcase :
Apply sealant 99000-31150 to lower
crankcase mating surface.7. Flywheel (M/T) Drive plate
(A/T)12. Clutch housing plate Tightening Torque
3. Crankshaft 8. Water pump 13. Cap bolt Do not reuse
4. Main bearing 9. O-ring 14. Lower crankcase bolt Apply engine oil to sliding
surface of each parts.
5. Thrust bearing :
Set bearing facing grooved side to
crank weds.10. Timing chain oil jet 15. Knock sensor“a”: Width 3 mm (0.12 in.)
“b”: Height 2 mm (0.08 in.)

ENGINE MECHANICAL (H27 ENGINE) 6A2-37
09916-84511 09917-68221 09917-87810 09917-98221
Forceps Camshaft lock holder Valve guide installer Valve stem seal installer
09918-08210 09919-28610 09924-17810 09926-58010
Vacuum gauge hose joint Protective sleeve Flywheel holder Bearing puller attachment
09944-36011 09911-97710 09915-76510
Steering wheel remover Oil seal guide Oil pressure gauge
attachment