Page 125 of 1395

Timing Belt
Installation (cont'd)
3. Install the timing belt tightly in the sequence shown.
O Timing belt drive pulley (crankshaft) J @ Adjust-
ing pulley =r @ Water pump pulley r @ Exhaust
camshaft pulley --) @ Intake camshaft pulley.
NOTE: Make sure the timing belt drive pulley and
camshaft pulleys are at TDC.
4. Loosen and retighten the adjusting bolt to tension
the timing belt.
5. Clean. then install the lower cover and middle
cover.
Install the crankshaft pulley, then tighten the pulley
bolt (see page 6-7).
Rotate the crankshaft pulley about five or six turns
counterclockwise so that the timing belt positions
on the pulleys.
Adjust the timing belt tension {see page 6-9).
1.
6-12
9. Check that the crankshaft pulley and camshaft pulleys
are both at TDC.
POINTER ON
lf the camshaft pulleys are not positioned at TDC,
remove the timing belt. adjust the position following
the procedure on page 6-11. then reinstall the timing
belt.
Installthe cylinder head cover (see page 6-32).
After installation, adjust the tension on each belt.
. See section 4 for alternator belt tension adjust-
menr.
. See section 22 for NC compressor belt tension
adjustment.
. See section 17 for P/S pump belt tension adjust-
ment.
10.
11.
12.
POINTER
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Page 135 of 1395

Camshafts
4.
Inspection
1.
7.
Loosen the adjusting screws.
Remove the camshaft holders.
Mark the rocker arms, then remove them.
Reinstall the camshaft and holders. Tighten the
camshaft holder bolts in a crisscross pattern, begin-
ning with the inner bolts.
9.8 N.m (1.0 kgf.m.7.2 lbf.ft)
Seat the camshafts by pushing them toward the dis-
tributor end of the head with a screwdriver.
Zero the dial indicator against the end of the
camshaft, push the camshaft back and forth and
read the end play.
Camshaft End Play:
Standard lNewl: 0.05 - 0.15 mm
10.002 - 0.005 in)
Service Limit: 0.5 mm (0.02 in)
Unscrew the camshaft holder bolts two turns at a
time, in a crisscross pattern, Then remove the
camshaft holder bolts from the cvlinder head.
Lift the camshafts out of the cylinder head. wipe
them clean, then inspect the lift ramps, Replace the
camshaft if any lobes are pitted, scored, or exces-
sively worn.
Clean the camshaft journal surfaces in the cylinder
head, then set the camshaft back in Dlace. Place aplastigage strip across each journal.
Install the camshaft holders. and torque the bolts tothe values and in the sequence shown on page 6-31.
NOTE: Do not rotate the camshafts during inspection.
8.
10.
6-22
11. Remove the camshaft holders. Measure the widest
portion of plastigage on each journal.
Camshatt-to HoldGr Oil Clearance:
Standard {Newl: 0.030 - 0.069 mm
{0.0012 - 0.0027 in}
Servico Limit: 0.15 mm (0.006 in)
12. lf camshaft-to-holder oil clearance is out of toler-
ance:
. And the camshaft has already been replaced,
you must replace the cylinder head.. lf the camshaft has not been replaced, first check
total runout with the camshaft suoDorted on V-
blocks.
Camshaft Total Runout:
Standard (N6w): 0.03 mm (0.001 in) max.
Service Limit 0.04 mm (0.(X)2 in)
Rotat6 camshattwhile measuring.
- lf the total runout of the camshafts is within tol-
erance, replace the cylinder head
- lf the total runout is out of tolerance, replace the
camshafts and recheck. lf the oil clearance is still
out of tolerance, replace the cylinder head.
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Page 139 of 1395

Valve Guides
Replacement (cont'dl
5.
Working from the camshaft side, use the driver andan air hammer to drive the guide about 2 mm (O.l
in) towards the combustion chamber. This willknock off some of the carbon and make removaleasier. Hold the air hammer directly in line with thevalve guide to prevent damaging the driver.
CAUTION: Always wear satety goggles or a faceshield when driving valve guidss.
Turn the head over and drive the guide out towardthe camshaft side of the head.
li a valve guide won't move, drill it out with a 8.0mm (5/16 in) bit, then try again. Dritt guides onty inextreme cases; you could damage the cylinder headif the guide breaks.
Remove the new guide(s) from the freezer, one at atlme, as you need them.
6.
7.
6-26
'o C'
8. Apply a thin coat of clean engine oil to the outsideof the new valve guide. Install the guide from thecamshaft side of the head; use the special tool todrive the guide in to the specified installed height. lfyou have all 16 guides to do, you mav have toreheat the head.
Valve Guide Installed Height:
Intake: 13.75 - 1i1.25 mm
{0.5,[1 - 0.561 in)
Exhaust: 15.75 - 16.25 mm(0.620 - 0.640 inl
ATTACHMENT
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Page 147 of 1395

Engine Block
Speciaf Tools .............7-2
lllustrated lndex ................................... 7-3
Flywheel and Drive Plate
Replacement ..,.,....7-5
Connecting Rod and Grankshaft
End Play .................7-6
Main Bearings
Cfearance ...............7 -7
Selection ................7-8
Connecting Rod Bearings
Clearance ...............7-8
Selection ................7-9
Pistons and Crankshaft
Removal .................7-9
Crankshaft
Inspection .............. 7-11
Pistons
fnspection ..............7-12
fnstaflation .............7-20
Cylinder Block
Inspection ..............7-13
Piston Pins
Removal ..,.......,,..... 7-14
Installation ............. 7-15
Inspection .............. 7-16
Connecting Rods
Selection ................7 -14
Piston Rings
End Gap .................7 -17
Ring-to-Groove Clearance ............... 7 -17
Replacement .........7-18
Alignment .............. 7-18
Crankshaft Oil Seal
lnstallation ............. 7-19
Crankshaft
lnstalfation .............7-20
Oil Seals
fnstalfation ....,..,.....7-23
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Page 148 of 1395
Special Toolstl
Ref, No. I Tool NumborDescriptionOty Page Reterence
o
@
@/6
@
o
@
@
@
@
07GAF - PH60300
07HAF - P120102
07LAB - PV00100
07LAD - PT30101
07LAF - PR30100
07948 - S800101
07749 - 0010000
07973 - PE00310
07973 - PE00320
07973 - 6570500
07973 - 6570600
Piston Pin Base lnsert
Piston Base Head
Ring Gear Holder
Seal Driver
Pilot Collar
Seal Driver Attachment. 76 x 80 mm
Driver
Piston Pin Driver Shaft
Piston Pin Driver Head
Piston Base
Piston Base Spring
,l
1
I
I
1
1
1
1
1
1
1
7-14,15
1-'t4,15
1-5
1-23
7-14,15
7-'t9,24
7 -'t9, 24
1-14,15
7-14,15
7-'t4,15
7-14,15
eEEg
o
a@
0
o@
7-2
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Page 151 of 1395
Flywheel and Drive Plate
Replacement
Manual Transmission:
Remove the eight flywheel bolts, then separate the fly-
wheel from the crankshaft flange. After installation, tight-
en the bolts in the sequence shown.
ENGINEBLOCK
12 x 1.0 mm103 N.m 110.5 kgf.m,76 lbf.ft)
Automatic Transmission:
Remove the eight drive plate bolts, then separate the
drive plate from the crankshaft flange. After installation,
tighten the bolts in the sequence shown.
RING GEARInspect ring gearteeth for wear or damage,
RI G GEAR HOTDER07LAB - PV001|X)
12 x 1.0 mm7a N.m(7.5 kgt.m,5a lbf.ftl
/ AzXi{'jA\Ao
7-5,
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Page 156 of 1395

Pistons and Crankshaft
Removal (cont'dl
6. Remove the bolts. To prevent warpage, unscrew the
bolts in sequence 1/3 turn at a time; repeat the
sequence until all bolts are loosened.
Remove the rod caps/bearings and main caps/bear-
ings, Keep all caps/bearings in order
Lift the crankshaft out of the engine. being careful
not to damage the journals.
7.
7-10
9.
10.
Remove the upper bearing halves from the connecting
rods, and set them aside with their respective caps.
Reinstall the main caps and bearings on the engine
in proper order.
lf you can feel a ridge of metal or hard carbon
around the top of each cvlinder, remove it with a
ridge reamer. Follow the reamer manufacturer's
instructions. lf the ridge is not removed, it may
damage the pistons as they 8re pushed out.
12.
11.
14.
Use the wooden handle of a hammer to drive the
pistons out.
13.Reinstall the connecting rod bearings and caps after
removing each piston/connecting rod assembly.
To avoid mixup on reassembly, mark each piston/
connecting rod assembly with its cylinder number.
NOTE: The existing number on the connecting rod
does not indicate its position in the engine, it indi-
cates the rod bore size.
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Page 160 of 1395

Piston PinsConnecting Rods
Assemble the Piston Pin Tools as shown.
PISTON BASE HEAO07HAF -PL20102
PISTON BASE07973 - 6570500
Adjust the length A of the piston pin dflver.
A: 49.70 mm 11.957 in)
PIN DRIVER HEAIPE00320
\
RIr1
nT---
u
ffi-"""-
u_ll
3. Place the piston on the piston base, and press the
pin out with a hydraulic press. Make sure that the
recessed portion of the piston aligns with the lips
on the collar.
7-14
Removal
1.
PISTON07973 -
PISTON PIN BASE INSERT07GAF - PH60300
PISTON PIN DRIVER SHAFT07973 - PEt 0310
PILOT COLLAR07LAF - PR30100Embossod mark facing up.
Selection
Each rod falls into one of four tolerance ranges (from 0
to + 0.024 mm {0 to + 0.0009 in). in 0.006 mm (0.0002 in)
increments) depending on the size of its big end bore.
lt's then stamped with a number 1.1.2,3, or 4) indicating
the range.
You may find any combination ot 1,2,3, or 4 in any
engrne.
Normal Bore Size: ,18.0 mm (1.89 in)
Inspect the connecting rod for cracks and heat damage.
CONNECTING ROD BOREREFENENCE NUMBERHalf of number is stamped onbearing cap, the other half onconnectno roo.
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