Page 346 of 557

A: Valve spring retainer side
B: Valve spring seat side
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-51
5) Install new valve stem seal (1) to valve guide.
After applying engine oil to seal and spindle of special tool (Valve
guide installer handle), fit oil seal to spindle, and then install seal
to valve guide by pushing special tool by hand.
After installing, check to be sure that seal is properly fixed to
valve guide.
Special Tool
(A): 09917-98221
(B): 09916-58210
NOTE:
Do not reuse seal once disassembled. Be sure to install
new seal.
When installing, never tap or hit special tool with a ham-
mer or else. Install seal to guide only by pushing special
tool by hand. Tapping or hitting special tool may cause
damage to seal.
6) Install valve to valve guide.
Before installing valve to valve guide, apply engine oil to stem
seal, valve guide bore, and valve stem.
7) Install valve spring and spring retainer.
Each valve spring has top end (large-pitch (1) end) and bottom
end (small-pitch (2) end). Be sure to position spring in place with
its bottom end (small-pitch end) facing the bottom (valve spring
seat side).
8) Using special tools (Valve lifter), compress valve spring and fit
two valve cotters (1) into groove in valve stem.
Special Tool
(A): 09916-14510
(B): 09916-14910
(C): 09916-84511
Page 347 of 557

A: Crankshaft pulley side
B: Flywheel side
A: Camshaft pulley side
B: CMP sensor case side
6A1-52 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
9) Install rocker arms, washers, rocker arm shaft and camshaft as
previously outlined.
10) Install CMP sensor case, intake manifold and exhaust man-
ifold.
INSTALLATION
1) Remove oil gasket and oil on mating surfaces and install new
head gasket (1) as shown in figure, that is, “TOP” mark provided
on gasket comes to crankshaft pulley side, facing up (toward cyl-
inder head side).
2) Check to make sure that oil jet (venturi plug) is installed and if
it is, that it is not clogged.
When installing it, be sure to tighten to specified torque.
Tightening Torque
(a): 3.5 N
.m (0.35 kg-m, 2.5 lb-ft)
3) Apply engine oil to cylinder head bolts and tighten them gradual-
ly as follows.
a) Tighten all bolts to 35 N
.m (3.5 kg-m, 25.0 lb-ft) according to
numerical order in figure.
b) In the same manner as in a), tighten them to 55 N
.m
(5.5 kg-m, 40.0 lb-ft).
c) Loosen all bolts until tightening torque is reduced to 0 (zero)
in reverse order of tightening.
d) In the same manner as in a), tighten them to 35 N
.m
(3.5 kg-m, 25.0 lb-ft).
e) In the same manner as in a) again, tighten them to specified
torque.
Tightening Torque
(a): 68 N
.m (6.8 kg-m, 49.5 lb-ft)
Page 348 of 557
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-53
4) Reverse removal procedure for installation.
5) Adjust water pump drive belt tension by referring to “ENGINE
COOLING” section.
6) Adjust power steering pump belt tension or A / C compressor
belt tension, if equipped.
Refer to Section 0B.
7) Adjust intake and exhaust valve lashes as previously outlined.
8) Adjust accelerator cable play.
Refer to Section 6E.
9) Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been reinstalled.
10) Refill cooling system referring to Section 6B.
11) Connect negative cable at battery.
12) Confirm that ignition timing is within specification.
13) Verify that there is no fuel leakage, coolant leakage and ex-
haust gas leakage at each connection.
Page 352 of 557

“a”: 23 mm (0.91 in.)
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-57
Piston clearance:
Measure cylinder bore diameter and piston diameter to find their
difference which is piston clearance. Piston clearance should be
within specification as given below. If it is out of specification, re-
bore cylinder and use oversize piston.
Piston clearance: 0.02 – 0.04 mm (0.0008 – 0.0015 in.)
NOTE:
Cylinder bore diameters used here are measured in thrust
direction at two positions.
Ring groove clearance:
Before checking, piston grooves must be clean, dry and free of
carbon.
Fit new piston ring (1) into piston groove, and measure clearance
between ring and ring land by using thickness gauge (2).
If clearance is out of specification, replace piston.
Ring groove clearance:
Top: 0.03 – 0.07 mm (0.0012 – 0.0027 in.)
2nd: 0.02 – 0.06 mm (0.0008 – 0.0023 in.)
Piston Pin
Check piston pin, connecting rod small end bore and piston bore
for wear or damage, paying particular attention to condition of
small end bore bush. If pin, connecting rod small end bore or pis-
ton bore is badly worn or damaged, replace pin, connecting rod
or piston.
Piston pin clearance:
Check piston pin clearance in small end. Replace connecting rod
if its small end is badly worn or damaged or if measured clearance
exceeds limit.
Item
StandardLimit
Piston clearance in
small end0.003 – 0.016 mm
(0.0001 – 0.0006 in.)0.05 mm
(0.0020 in.)
Small-end bore:
19.003 – 19.011 mm (0.7482 – 0.7486 in.)
Piston pin dia.:
18.995 – 19.000 mm (0.7478 – 0.7480 in.)
Page 353 of 557

1. Cylinder block
“a”: 120 mm (4.72 in.)
6A1-58 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
Piston Rings
To measure end gap, insert piston ring (3) into cylinder bore and
then measure the gap by using thickness gauge (2).
If measured gap is out of specification, replace ring.
NOTE:
Decarbon and clean top of cylinder bore before inserting pis-
ton ring.
Item
StandardLimit
Piston
Top ring0.15 – 0.30 mm
(0.0059 – 0.0118 in.)0.7 mm
(0.0275 in.)
Piston
ring end
gap
2nd ring0.2 – 0.35 mm
(0.0079 – 0.0137 in.)0.7 mm
(0.0275 in.)
ga
Oil ring0.2 – 0.7 mm
(0.0079 – 0.0275 in.)1.7 mm
(0.0669 in.)
Connecting Rod
Big-end side clearance:
Check big-end of connecting rod for side clearance, with rod fitted
and connected to its crank pin in the normal manner. If measured
clearance is found to exceed its limit, replace connecting rod.
Item
StandardLimit
Big-end side
clearance0.10 – 0.20 mm
(0.0039 – 0.0078 in.)0.35 mm
(0.0137 in.)
Connecting rod alignment:
Mount connecting rod on aligner to check it for bow and twist and,
if limit is exceeded, replace it.
Limit on bow: 0.05 mm (0.0020 in.)
Limit on twist: 0.10 mm (0.0039 in.)
Page 354 of 557

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-59
Crank Pin and Connecting Rod Bearings
Inspect crank pin for uneven wear or damage. Measure crank pin
for out-of-round or taper with a micrometer. If crank pin is dam-
aged, or out-of-round or taper is out of limit, replace crankshaft or
regrind crank pin to undersize and use undersize bearing.
Connecting rod bearing size
Crank pin diameter
Standard41.982 – 42.000 mm
(1.6528 – 1.6535 in.)
0.25 mm (0.0098 in.)41.732 – 41.750 mm
(1.6430 – 1.6437 in.)
Out-of-round and taper limit: 0.01 mm (0.0004 in.)
Rod bearing:
Inspect bearing shells for signs of fusion, pitting, burn or flaking
and observe contact pattern. Bearing shells found in defective
condition must be replaced.
Two kinds of rod bearing are available; standard size bearing and
0.25 mm undersize bearing. To distinguish them, 0. 25 mm under-
size bearing has the stamped number (US025) on its backside as
indicated in figure, but standard size one has no number.
Rod bearing clearance:
1) Before checking bearing clearance, clean bearing and crank
pin.
2) Install bearing in connecting rod and bearing cap.
3) Place a piece of gaging plastic (1) to full width of crankpin as
contacted by bearing (parallel to crankshaft), avoiding oil hole.
4) Install rod bearing cap (1) to connecting rod.
When installing cap, be sure to point arrow mark (2) on cap to
crankshaft pulley side (3), as shown in figure. After applying
engine oil to rod bolts, tighten cap nuts to specified torque. DO
NOT turn crankshaft with gaging plastic installed.
Tightening Torque
(a): 35 N
.m (3.5 kg-m, 25.5 lb-ft)
Page 358 of 557
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-63
6) Reverse removal procedure for installation, as previously out-
lined.
7) Adjust water pump drive belt tension referring to Section 6B.
8) Adjust power steering pump belt tension or A / C compressor
belt tension, if equipped.
Refer to Section 0B.
9) Adjust accelerator cable play.
Refer to Section 6E.
10) Check to ensure that all removed parts are back in place. Rein-
stall any necessary parts which have not been reinstalled.
11) Refill engine with engine oil by referring to item “ENGINE OIL
CHANGE” in Section 0B.
12) Refill cooling system referring to Section 6B.
13) Connect negative cable at battery.
14) Check ignition timing referring to Section 6F.
15) Verify that there is no fuel leakage, coolant leakage, oil leakage
and exhaust gas leakage at each connection.
Page 361 of 557

6A1-66 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
15) Remove exhaust No.1 pipe.
16) Remove right and left engine under covers.
17) Remove gear shift control shaft from transmission and remove
extension rod (M / T).
18) Drain engine and transmission oil.
19) Disconnect drive shaft joints from differential gears of trans-
mission or center bearing support referring to Section 4. In this
case, it is not necessary to disconnect drive shafts from steer-
ing knuckle.
20) With hoses connected, detach A / C compressor and/or P / S
pump with bracket from cylinder block, if equipped.
NOTE:
Suspend removed compressor and/or pump at a place
where no damage will be caused during removal and
installation of engine with transmission.
21) Disconnect P / S hose from P / S oil pump. (if equipped)
NOTE:
Plug pipe, hose and pump port.
22) Install support device.
23) Remove rear mounting from body. (For M / T model)
Remove rear torque rod (For A / T model).
24) Remove engine left mounting from body.
25) Remove engine right mounting from right mounting bracket
and stiffener.
26) Before removing engine with transmission from body, recheck
to make sure all hoses, electric wires and cables are discon-
nected from engine and transmission.
27) Lower engine with transmission from body.