6-12 HONDA CIVIC 1996 6.G Workshop Manual

Cylinder Head/Valve Train
Dl6Y5, D16Y7, Dl6Y8 engines
Special Tools ............. G2
VTEC Control System
Troubleshooting Flowchart .........." 6-3
VTEG Solenoid Valve
Inspection ............" 6-6
VTEC Rocker Arms
Manual lnspection
(D16Y5 engine) ............................. 6-7
Manual Inspection
(D16Yg enginel ................'............ 6-7
Inspection Using Special Tools
{D16Y5 engine} .....................""'... 6-8
Inspection Using Special Tools
(D16Y8 engine) .........................'.'. 6-10
Valve Clearance
Adiustment ..."".....6-12
Valve Seals
Replacement (Cylinder head removal
not requiredl ................................ 6-1tl
Crankshaft Pulley and PulleY Bolt
Replacement ."...... &16
Timing Selt
lllustrated Index ............................... 6-17
Inspection .............. 6-18
Tension Adjustment ........................ 6- 1 I
Removal ......,,......... 6-19
lnstallation ............. 6-20
Crankshaft Speed Fluctuation (CKF) Sensor
Repf acement .........6'22
Cylinder Head
lllustrated Index ............................... 6-23
Removal ................. 6-27
Warpage ................ 6-40
lnstallation ............. 6-45
Rocker Arms
Removal ................. 6-30
Disassembly/Reassambly ............... 6-31
Rocker Arms and Lost Motion Assemblies
Inspection (D16Y5, D16Yg
enginesl "..........' 5-34
Rocker Arms and Shafts
Glearance Inspection ....................... 6-35
Camshaft
Inspection .............. 6-36
Valves, Valve Springs and Valve Seals
Removal ........""..... 6-38
Valve Guides
Valve Movement .............................. 6-39
Replacement .........6-41
Reaming .......'......'.' 6-43
Valve Seats
Reconditioning .'....6'40
Valves
lnstallation ............. 6-tt3
Camshaft/Rocker Arms and
Camshaft Seal/Pulley
lnstallation ............. 6-44

Valve Clearance
Adjustment
NOTE:
. Valves should be adjusted only when the cylindsrhead temperature is less than 100"F (38"C).
. After adjusting, retorque the crankshaft pulley bolt(see page 6-16).
1, Remove the cylinder head cover.
NOTE; Refer to page e46 when installing the cytinderhead cover.
2. Remove the upper cover (see page 6-19).
3. Set the No. 1 piston at TDC. The "UP" mark on the
cam-shaft pulley should be at top, and the TDC
marks should align with the cylinder head surface.
TDC MARKS
4. Adjust valves on No, 1 cylinder.
Intako: 0.18 - 0.22 mm {0.007 - 0.009 in}
Exhaust: 0.23 - 0.27 mm (0.009 - 0.011 inl
"UP" MARK
6-12
No.4
5. Loosen the locknut, and turn the adjustment screwuntil the feeler gauge slides back and forth with asliOht amount of drag,
D16Y7 engin.:
CAUTION: Do not oyertighlen the locknuts; thorockor arms are made of aluminum.
INTAKE end EXHAUST VALVELOCKNUTS
Dl6Y5, Dl6Y8 engin€3:
INTAKE .nd EXHAUST VALVELOCKNUTS20 N.m 12.0 kstm, 14lbtft)
Adiusting screw locations:
IMTAKEo.4 1{o. 3 No. 2
tr'
(
nb.3 No.2 No. 1EXHAUST
18 N.m (1.8 kgI.m, 13 tbl.ftl

Driveshafts
Reassembly (cont'dl
8. Fit the inboard joint onto the driveshaft, and note
these items:
. Reinstall the inboard joint onto the driveshaft by
aligning the marks on the inboard joint with the
marks on the rollers.
. Hold the driveshaft so that the inboard joint
points up to prevent it from falling off.
Adjust the length of the driveshafts to the figure
below, then adjust the boots to halfway between
full comDression and full extension. The ends of the
boots seat in the groove of the driveshaft and joint.
Right driveshaft, 1600 OOHC VTEC model:475 - 480 mm (18.7 - 18.9 in)Left driveshaft, all othei models:774-779 mm (30.5 - 30.7 in)Right driveshaft, all other models:501 - 506 mm 119.7 -'19.9 inl
Left driveshaft. 1600 DOHC WEC model:475 - 480 mm 118.7 - 18,9 inl
16-12
OYNAMIC DAMPEROUTBOARD JOINT
10. lf necessary position the dynamic damper as shown
Detow.
. Install a new dynamic damper band. and bend
down both sets of locking tabs.
. Lightly tap on the doubled-over ponjon of the
band to reduce its height.
Loft:
1600 DOHC VTEC model: 26 i 2 mm (1.0 t 0.1 inl
All other models: 9,1t 2 mm (3.7 10.1 inl
With "SR1" mark: 7512 mm 12.9 ! 0.1 inl
Right:
16dl DOHC VTEC models: 2612 mm 11.0 t 0.1 inl
All other modelii
DYNAMIC DAMPER
-SR1" MARK
U.S. and Canada-Produced ITPE BOOTI
Left 53612 mm {21.1 10.1 in}
Right: 2txt 12 mm {10.it 1 0.1 in}
5512 mm (2.2 t 0.1 inl
INBOARO JOINT
DYNAMIC DAMPER BAND