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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.
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6A2-24 ENGINE MECHANICAL (H27 ENGINE)
ASSEMBLY
1) 2 sizes of piston are available as standard size spare part so
as to ensure proper piston-to-cylinder clearance. When
installing a standard size piston, make sure to match piston
with cylinder as follows.
a) Each piston has stamped number (1 or 2) on its piston
head. It represents outer diameter of piston.
b) There are also stamped numbers of 1 and 2 on the cylinder
block as shown in the figure.
c) Stamped number on piston and cylinder block must corre-
spond. That is, install number “2” stamped piston to cylinder
which is stamped also number “2” and a number “1” piston
to cylinder with number “1”.
Also, a letter A, B or C is stamped on piston head but ordi-
narily it is not necessary to distinguish each piston by this
letter.
Piston-to-cylinder clearance
Piston :
Cylinder :
Piston-to-cylinder clearance :
0.02 – 0.04 mm (0.0008 – 0.0015 in.)
2) Install piston pin to piston and connecting rod :
After applying engine oil to piston pin and piston pin holes in
piston and connecting rod, fit connecting rod to piston as
shown in the figure and insert piston pin to piston and con-
necting rod, and install piston pin circlips. Number at the top (mark) Outer diameter
187.98 – 87.99 mm
(3.4638 – 3.4642 in.)
287.97 – 87.98 mm
(3.4634 – 3.4638 in.)
Number on cylinder block (mark) Outer diameter
188.01 – 88.02 mm
(3.4650 – 3.4653 in.)
288.00 – 88.01 mm
(3.4646 – 3.4650 in.)
NOTE:
“86F” mark on connecting rod must face toward crank-
shaft pulley side.
1. Piston
2. Arrow mark
3. Connecting rod
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6E2-20 ENGINE AND EMISSION CONTROL SYSTEM (SEQUENTIAL MULTIPORT FUEL INJECTION FOR H27 ENGINE)
CLEANING
Clean throttle body bore and bypass air passages (1) by blowing
compressed air.
INSTALLATION
1) Clean mating surfaces and install throttle body gasket to
intake collector (1) with new gasket (2).
2) Install throttle body to intake collector and tighten bolts.
3) Connect PCV hose.
4) Install throttle body and intake collector to intake manifold
with new intake collector gaskets.
5) Install EGR pipe with new gaskets.
6) Connect breather hose and EVAP canister purge valve hose
and install PCV valve to cylinder head.
7) Connect connectors of EVAP canister purge valve, MAP
sensor and EGR valve.
Fix wire harness with clamps.
8) Install clamp bracket to intake collector.
9) Connect ground wire connector.
10) Connect connectors of TP sensor, ground and IAC valve.
11) Install surge tank pipe to intake manifold with new gaskets
and intake air pipe to throttle body. Install surge tank cover.
12) Connect engine coolant hoses to throttle body.
13) Connect accelerator cable and A/T throttle cable (A/T).CAUTION:
Do not blow compressed air through bypass air pas-
sage with IAC valve installed to throttle body. This will
cause IAC valve to malfunction.
TP sensor, idle air control valve or other components
containing rubber must not be places in a solvent or
cleaner bath.
A chemical reaction will cause these parts to swell,
harden or get distorted.