1994 HONDA INTEGRA crankshaft

Timing Belt
Inspection
Remove the cylinder head cover.
. Reler to page 6-3'l when installing.
Inspect the timing belt for cracks and oil or coolant
soaking.
NOTE:
. Replace the belt if oil or coolant soaked.
. Rsmove any oil or solvent that gets on the belt.
Rotate pulley
and inspscr bell.
After inspecting, retorque the crankshaft pulley bolt
to 177 N'm ('18.0 kgf'm, 130 lbt'ft).
Tension Adjustment
CAUTION: Always Ediust timing belt tonsion with tho
cngin. cold.
NOTE:
. The tensionet is spring-loaded to apply proper ten-
sion to the belt automaticallv after making the follow-
ing adjustment.
. Always rotate the crankshaft counterclockwise when
viewed trom the pulley side Rotating it clockwise
may result in improper adjustment ot the belt ten-
sion.
Remove the cylinder head cover. (Refer to page
6-31 when installing.)
Set the No. 1 piston at TDC (see page 6-12).
Rotate the c.ankshaft 5 - 6 revolutions to set the
bslt.
4. Set the No. I piston at TDC.
3.
ADJUSNNG BOLT54 N.m (5.5 kqf.m,a0 rbr.ftlFor adiustment only,do not remove,
5.
6.
7.
8.
Direction olrolatlon.
Loosen the adiusting bolt 1/2 turn (180') onlv
Rotate the crankshaft counterclockwise 3-teeth on
the camshaft pulley.
Tighten the adjusting bolt to the specified torque.
After adjusting, retorque the crankshaft pulley bolt
to 177 N.m (18.0 kgl.m. 130 lbf.ft).
6-9

Timing Belt
Removal
I
NOTE:
. Turn the crankshaft pulley so the No. 1 piston is attop d6ad center (TDC) before removing the belt (see
page &12).
a Inspect the water pump when removed the timingbolt {see page 10-9}.
1. Remove thawhe€lwell splash shield (see page 6-18).
2. Loosen ths adjusting bolt and mounting bolts, thenremove the power steering {P/S) pump belt.
MOUivNNG BOLTS8 x 1.25 mm2a N.m 12.4 kgf.m, 1 7 lbt frl
Loosen the adjusting bolt and idler pulley bracket
bolt, then remove the air conditioning (A,/C) com-
oressor belt.
IDLER PUI.IEY BRACKETBOLTl0 r 1.25 mma/a N.m {1.5 kgf.m.33 lbf'ft}
AA,USNNG
ADJUSTING
4, Loosen the adjusting nut and mounting nut, thenremove the alt€rnator belt.
EELTa,l N.m {4.5 kgl.m,33 lbfftl
Remove the cruise control actuator (see page 6-18).
Remove the sid6 sngine mount.
10 x 1.25 mm52 N.m {5.3 kgr'm,38 lbtft}Replace.
MOUNTING NUT10 x 1.25 mm
ADJUSNNG NUT8 x 1.25 mrr2a N.m l2.a lef.m,17 rbl.ftl
12 x 1.25 mm74 N.m 17.5 kgt m,s4 tb{.ftl

1.Remove the cylinder head cover.
. Refer to page 6-31 when installing.
Remove the Dulley bolt and crankshaft pulley (see
page 6-8).
Remove the middle cover and the lower cover.
NOTE:
. Do not use the middle cover and lower cover for
storing items disassembled.
. Clean the middle cover and lower cover before
installation.
CAP NUT 6 x 1.0 mm
10. Loosen the adjusting bolt 180'.
1'1. Push the tensioner to remove tension from the tim-
ing belt, then retighten the bolt.
12. Remove the timing belt from the pulleys.
NOTE: Push the tensioner pulley toloosen the belt.
8.
9.8 N.m 11.07.2 rbl.ftl
WASHER
orReplace when damaged
CYLINDEF HEADCOVERReter to page 6-31 wheninstalling.ADJUSTING BOLT10 x 1.25 mm54 N.m 15.5 kg{.m,/r0 lbf.ftlFor adjustment only,
TIMING BELTAdiustment, Page 6I
LOWEB @VER
MIDOLE COVER
6x1.0mm9.8 N.m 11.0 kgJ m, 7.2 lblftl
6x1.0mm9.8 N.m ('1.0 kgt.m,7.2 lbl fr)
Remove anY oiland clean
KE
6x1.0mm
NMING BELTGUIOE PLATElnstallwith concavesurface facing out.
and clean.CRANKSHAFT PULLEYRemove any oiland clean on ihetiming belt guideplate sido.9.8 N.m (1.0 kgtm,7.2lbt'ftl
6-11

Timing Belt
Installation
Install the timing belt in the revorce order of removal;
Only key points are described here,
NOTE: Cl€an the middle cover and lower cover beforeinstallation.
L Position the crankshaft and th€ camshaft pulleys asshown before installing the timing belt.
A. Set the crankshaft so that the No. 1 oiston is at
top dead center (TDC). Align the g.oovo on the
t€eth side of the timing belt d.ive pulley to the Opointer on the oil pump.
L Align the TDC marks on intake and exhaust pul-
tevs,
NOTE: To set the camshafts at TDC position for
No. 1 piston, align the holes in the camshafts
with the holes in No. l camshaft holders andinsert 5,0 mm pin punches in the holes.
PIN PUNCHES, 5.0 mm
2. lnstall the timing belt tightly in the sequence
snown.
O timing belt drive pulley {crankshaft) + @Adjusting pulley * @ Water pump pulley - @Exhaust camshaft pulley + @ Intake camshaft pul-
lev.
TDC mark align6d with thepointer on back cover,TDC MARK
6-12

Gylinder Head
Removal
I
t
Engine removal is not required for this procedure.
CAUTION: To avoid damaging tho cylinder head, wait
until tho ongino coolant temporature drops bolow 100"F
{38"C) beforo loo36ning the rotainin0 bolts.
NOTE:
. Inspect the timing belt before removing the cylinder
neao.
. Turn the crankshaft pulley so that the No. 1 piston is
at top dead center (TDCI (page 6-12).
. Mark all emissions hoses before disconnecting them.. Anti-theft radios have a coded theft protection circuit.
Be sure to get the customer's code number before.- Disconnecting the battery.- Removing the No. 32 (7.5 A) fuse irom the under-
hood fuse/relay box.- Removing the radio.
After service, reconnect oower to the radio and turn it
on.
When the word "CODE" is displayed, enter the cus-
tomer's 5-digit code to restore radio operation.
1. Disconnect the negative terminalfrom the battery.
2. Drain the engine coolant (see page 10-5).
. Remove the radiator cap to speed draining.
3. Relieve fuel pressure (see Section 1 1).
@ Do not smoke whils working on tusl
systom, keep opon flame or spark away trom work
area. Drain fuol only inlo an approvod containsr.
4. Disconnect the fuel feed hose.
SERVIC€ BOLT
WASHERSReplace.
5, Remove the intake air duct.
Remove the breather
evaporative emission
hose, water bypass hose and(EVAP) control canister hose.

Cylinder Head/Valve Train
818C1 engine
Special Tools ............. 6-34
wEc
Troubleshooting Flowchart
WEC Solenoid Valve ................... 6-36
VTEC Pressure Switch ................. 6-38
VTEC Solenoid Valve Inspection .... 6-41
Rocker Arms
Manual Inspection .....,................. 6-42
Inspection Using Special
Tools ....................................,.....,.. 6-/|i|
Valve Glearance
Adiustment ............ 6-44
Timing Belt
lllustrated 1ndex ............................... 6-46
Inspection .............. 6-48
Tension Adiustment ........................ 6-48
Removal ................. 6-4{l
lnstallation ............. 6-51
Crankshaft Pulley Bolt
Replacement .........6-47
Cylinder Head
lllustrated Index ............................... 6-53
Removal .................6-55
Warpage ................6-74
lnstallation ............. 6-75
Rocker Arms
Removal ................. 6-60
Location ................. 6-61
lnspection .............. 6-62
Arm-to-Shaft G|earance .................. 6-63
Installation ............. 5-64
Camshafts
Inspection .............. 6-65
Valve Guides
Valve Movement .............................. 6-70
Replacement .........6-71
Reaming ................. 6-72
Valve Seals
Reconditioning ......6-73
Valves. Valve Springs and Valve Seals
Removal ................. 6-67
lnstallation Sequence ..........,.......,... 6-69
Valve lnstallation ............................. 6-70

Valve Clearance
Adiustment
NOTE:
. Valves should be adjusted cold; at a cylinder head
temperature of less than 100"F (38'C).
. Adjustmsnt is the same for intake and exhaust
vatves.
o After adjusting, retorque the crankshaft pulloy bolt to
177 N.m ( 18.0 kgf.m, 130 lbf.ft).
1. Remove cylinder head cove..
ADJUSTING BOLT LOCANONS:
IMTAKE
No. 4 No.3 No. 2 No. 1
No.4 No.3 No.2 No. 1
EXHAUST
Set No. 1 piston at TDC. "UP" mark on the pulley
should be at top, and TDC grooves on the pulley
should align with the pointer on back cover. TDC
grooves (white paint) on the crankshatt pulley
should align with pointer on the timing belt lower
cover.
Numbr. 1 pirton .t TDC:
6-44
FOI{IER Ot{LOWEF COVERTDC MANKlP.int d whit.t
3.
4.
Diroction ofaotation.
Adjust valv6 clearanc6 on No. 1 cylinder.
Intlkc: 0.15 - 0.19 mm (0.006 - 0.0,07 inl
Exh.u3t 0.17 - 0.21 mm (0.007 - 0.m8 inl
Looson lh6 locknut and turn the adjusting screw
until feeler gaugo slides back and fonh with a slight
amount of drag.
TAPPET AI\,USTEN WREI{CI{O'LAA - PRIOIq'
7 x 0.75 mrn20 f+|n (2.0 kgf'm. 14lbtftl
FEEEN GAUGE

Tightsn the locknut and recheck clearance again.
Rep6at sdjustm6nt if necossary.
Rotsts tha crankshaft 180' counterclockwiss
(c8mshaft pulley turns 90'). The "UP" mark should
be on th€ sxhaust 8id6, Adiust vslves on No. 3 cylin-
oer,
Nurrb.r3tittondTDC:
FEEI.IR GAUGE
.UP' MANKS
7. Rotato crankshaft 180' countsrclockwise to bring
No.4 piston to TDC. The "UP" mark should bo
pointing straight down. Adjust valves on No. 4
cylinder.
Numb.r 4 pidon .t Tt C:
8, Rotate crankshaft 180" counterclockwis€ to bring
No. 2 piston to TDC. The "UP" marks should be on
the intaks sid6. Adjust valves on No. 2 cylinder.
Nonb.r 2 pirton .l TltC:
NOTE: Refer to page 6-78 when installing cylinder head
cover.
6-45