1987 MAZDA 626 height

CRUISE CONTROL SYSTEM 1 5
CHECK LIGHTS (correct response)
ACTUATOR £
5 (O
W X
CHECK ITEMS AND CONDITIONS £ <0 z
VAC
CM I-1-z
Ul * < IE ffl X o V-
z o F < z ta
DC O 1-< DC Ui
TROUBLESHOOTING
(INCORRECT RESPONSE)
< S VAC UJ > < > -1 o o o UJ O
8. START THE ENGINE
• Shift lever to "N" position (A/T) O O O o X
A/T
O M/T X
O or X —
9. ACTUATOR OPERATION: (EGI model only) • After engine is started, set the slide switch "L" or "H". Then turn on check switch (keep in "D" position) Note: Engine speed should in-crease to 2,000—3,000 rpm. If over 4,000 rpm release the switch immediately.
o
X
1
o
X X X
A/T O M/T X
O or X
If engine speed does not come up to and remain
in
the
2,000
to
3,000
rpm. range, check the actuator and as-sociated harness.
10. SPEED SENSOR OUTPUT
Keeping idling condition, drive ve-
hicle slowly. o o 0 o X X 0 1 X
If GENERATOR LIGHT does not flash, trouble may be with speed sensor and associated harness.
76U15X-199
INSPECTION
Actuator
Measure the actuator solenoid resistance by using
an ohmmeter.
Check terminals Resistance
c-d
Approx. 25 to 35 ohms c — a Approx. 25 to 35 ohms
c — b
Approx. 25 to 35 ohms
76G15X-075
Cruise Control Unit
If there is an operation malfunction of the cruise con-
trol system, and no abnormal condition when check-
ing above, replace the cruise control unit and check
system operation.
Clutch Switch, Brake Switch
When removing these switches, turn each of them
so that the corresponding pedal height agrees with
the standard value.
76G15X-076
Brake pedal height: 222 ±1 mm (8.74 1820
Clutch pedal height:
216.5 ±8 mm (8.52 ±820 In)
in)
15-87

30 TECHNICAL DATA
0. MEASUREMENT
Item Engine model Coupe/MX-6 Sedan Hatchback

Overall length mm (in) 4,450 (175.2) 4,515 (177.8) 4,515 (177.8)
Overall width mm (in) 1,690 (66.5) 1,690 (66.5) 1,690 (66.5)
Overall height (14 inch/13 inch) mm (in) 1,360 (53.5)/1,345 (52.9) 1,410 (55 5)/1,395 (54.9) 1,375 (54.1)/1,360 (53 5)
Wheel base mm (in) 2,515 (99.0) 2,575 (101.4) 2,575 (101.4)
Tread (14 inch/13 inch)
mm (in)
Front 1,455 (57.3)/1,460 (57.5) 1,455 (57.3)/(1,460 (57.5) 1,455 (57.3)/1,460 (57.5) Tread (14 inch/13 inch)
mm (in)
Rear 1,465 (57.7)/1,455 (57.3) 1,465 (57.7)/1,455 (57.3) 1,465 (57 7)/1,455 (57 3)
1
A. ENGINE (SOHC)
12-valve
— Engine model Item FE 12-valve
~vpe
Gasoline, 4-cycle
Cylinder arrangement and number In-line, 4-cylinders
Type
of
combustion chamber Pentroof
Valve system OHC, belt-driven
Bore
x
Stroke
mm (in)
86.0
x
86.0 (3.39
x
3.39)
Total piston displacement
cc
(cu
in)
1,998 (121.9)
Compression ratio 9.5
: 1

Compression pressure
kPa (kg/cm2, psi)-rpm
Standard 1,422 (14.5, 206)—280
Compression pressure
kPa (kg/cm2, psi)-rpm
Minimum 996 (10.2, 144)—280 Compression pressure
kPa (kg/cm2, psi)-rpm Maximum difference
between cylinders 196 (2.0,
28)

Valve timing
IN
Open
BTDC 14°
Valve timing
IN Close ABDC 56° Valve timing
EX Open BBDC 69° Valve timing
EX Close ATDC 13°
Valve clearance
mm (in)
IN 0; Maintenance free Valve clearance
mm (in)
EX 0; Maintenance free

Cylinder head

Heiaht
mm (inl
91.95-92.05 (3.620-3.624)
Distortion
mm (inl
Maximum 0.15 (0.006)
Grinding limit
mm (in)
Maximum 0.20 (0.008)

Valve and valve auide

Valve head diameter
mm (in)
IN 32.4-32.6 (1.276—1.283) Valve head diameter
mm (in)
EX 33.9-34.1 (1.335-1.343)
Valve head thickness (margin)
mm (in)
IN 0.8-1.2 (0.031—0.0471 Valve head thickness (margin)
mm (in)
EX 1.3—1.7 (0.051-0.067)
Valve face angle IN 45° Valve face angle EX 45°
Valve length
mm (in)

IN Standard 115.81 (4.55941
Valve length
mm (in)

IN Minimum 115.31 (4.5398) Valve length
mm (in)
cv Standard 116.21 (4.5752)
Minimum 115.71 (4.55551
Valve stem diameter
mm (in)
IN 6.970-6.985 (0.2744-0.2750) Valve stem diameter
mm (in)
EX 6.965-6.980 (0.2742-0.27481
Guide inner diameter
mm (in)
IN 7.01-7.03 (0,2760-0.2768) Guide inner diameter
mm (in)
EX 7.01-7.03 (0.2760-0.27681
Valve stem
to
guide clearance
mm (in)

IN 0.025-0.060 (0.0010-0.0024)
Valve stem
to
guide clearance
mm (in)
EX 0.030-0.065 (0.0012—0.0026) Valve stem
to
guide clearance
mm (in)

Maximum 0.20 (0.00791
Guide projection (Height "A")
mm (in)
19.8-20.3 (0.780-0.799)

30—2

TECHNICAL DATA 30
FE 12-valve Item FE 12-valve
Valve seat

Seat angle IN 45° Seat angle EX 45°
Seat contact width mm (in) IN 1.2-1.6 (0.047-0.063) Seat contact width mm (in) EX 1.2-1.6 (0.047-0.063)
Seat sinking (Measure valve protruding length) mm (in)
IN Standard 50.2 (1.976) Seat sinking (Measure valve protruding length) mm (in)
IN Maximum 51.0 (2.008) Seat sinking (Measure valve protruding length) mm (in) EX Standard 50.2 (1.976)
Seat sinking (Measure valve protruding length) mm (in) EX Maximum 51.0 (2.008)

Valve spring

IN Standard 49.5 (1.949)
Free length
mm
(in)
IN Minimum 49.0 (1.929) Free length
mm
(in)
EX Standard 50.4 (1.984) EX Minimum 48.7 (1.917)
Out-of-square mm (in) Maximum 1.8 (0.071)
Setting load/height
N
(kg, lb)/mm (in) IN 203-230 (20.7-23.4, 45.5-51,5)/41 (1.614) Setting load/height
N
(kg, lb)/mm (in) EX 240-272 (24.5—27.7, 53.9-60.9)/41 (1.614)

Camshaft

IN Standard 41.290-41.390 (1.6256-1.6295)
Cam lobe height
mm
(in)
IN Minimum 41.140 (1.6197) Cam lobe height
mm
(in)
EX Standard 41.797-41.897 (1.6455—1.6495) EX Minimum 41.647 (1.6396)
Front and Rear (No.
1,5)
31.940-31.965 (1.2575-1.2585)
Journal diameter
mm (in)
Center (No. 2,3,4) 31.910-31.935 (1.2563-1.2573)
Out-of-round Maximum 0.05 (0.002)
Camshaft bearing
oil

clearance
mm
(in)
Front and Rear (No.
1,5)
0.035—0.085 (0.0014-0.0033) Camshaft bearing
oil

clearance
mm
(in) Center (No. 2,3,4) 0.065-0.115 (0.0026-0.0045) Camshaft bearing
oil

clearance
mm
(in) Maximum 0.15 (0.0059)
Camshaft runout mm (in) Maximum 0.03 (0.0012)
Camshaft end play mm (in) Standard 0.08-0.16 (0.003—0.0061 Camshaft end play mm (in) Maximum 0.20 (0.008)

Rocker arm and rocker arm shaft

Rocker arm inner diameter mm (in) 19.000—19.033 (0.748—0.749)
Rocker arm shaft diameter mm (in) 18.959-18.980 (0.746-0.747)
Rocker arm
to
shaft clearance mm (in) Standard 0.020-0.074 (0.0008-0.0029) Rocker arm
to
shaft clearance mm (in) Maximum 0.10 (0.004)

Cylinder block

Height mm (in) 289.0 (11.38)
Distortion mm (in) Maximum 0.15 (0.006)
Grinding limit mm (in) 0.20 (0.008)
Cylinder bore diameter
mm (in)
Standard 86.000—86.019 (3.3858-3.3866) Cylinder bore diameter
mm (in) 0.25 (0.010) oversize 86.250-86.269 (3.3957-3.3964) Cylinder bore diameter
mm (in) 0.50 (0.020) oversize 86.500-86.519 (3.4055-3.4062)
Cylinder bore taper and out-of-round mm (in) Maximum 0.019 (0.0007)

Piston

Piston diameter measured at 90°
to
pin bore axis and 18.0 mm (0.709
in)
below oil ring groove
mm (in)
Standard 85.944-85.964 (3.3836-3.3844) Piston diameter measured at 90°
to
pin bore axis and 18.0 mm (0.709
in)
below oil ring groove
mm (in)
0.25 (0.010) oversize 86.194-86.214 (3.3935—3.3942)
Piston diameter measured at 90°
to
pin bore axis and 18.0 mm (0.709
in)
below oil ring groove
mm (in) 0.50 (0.020) oversize 86.444-86.464 (3.4033—3.4041)
Piston
to
cylinder clearance mm (in) Standard 0.036-0.075 (0.0014-0.0030) Piston
to
cylinder clearance mm (in) Maximum 0.15 (0.0059)

Piston ring

Thickness mm (in)
TOD
1.47-1.49 (0.0579—0.05871 Thickness mm (in) Second 1.47-1.49 (0.0579-0.0587)

30-3

TECHNICAL DATA 30
" Engine model Item FE 12-valve
Timing belt

Belt deflection
mm
(in)/98
N
(10 kg,
22 lb)
5.5—6.5 (0.22-0.26)

8-valve
Engine model
Item -••--.
FE 8-valve F8
F6
Engine model
Item -••--. ECE Middle
East
General
ECE General F6

Type Gasoline, 4-cycle
Cylinder arrangement and number In-line, 4-cylinders
Type
of
combustion chamber Multispherical
Valve system OHC, belt-driven
Bore
x
Stroke
mm
(in) 86.0
x
86.0 (3.39
x
3.39) 86.0
x
77.0
(3.39
x
3.03)
81.0
x
77.0 (3.19
x
3.03)
Total piston displacement
cc
(cu
in)
1,998 (121.9) 1,789 (109.1) 1,587 (96.8)
Compression ratio 8.6
: 1
9.0
: 1

Compression pressure kPa (kg/cm2, psi)-rpm
Standard 1,275 (13.0, 185)—270 1,128 (11.5, 164)—270
Compression pressure kPa (kg/cm2, psi)-rpm Minimum 893 (9.1, 129)—270 790 (8.1, 114)—270 Compression pressure kPa (kg/cm2, psi)-rpm Maximum difference
between cylinders 196 (2.0,
28)

Valve timing
IN Open BTDC 16° 20° 17°
Valve timing
IN Close ABDC 54° 65° 56° Valve timing
EX Open BBDC 54° 65° 64° Valve timing
EX Close ATDC 16° 20° 15°
Valve clearance
mm
(in) IN 0.30 (0.012) Valve clearance
mm
(in) EX 0.30 (0.012)

Cylinder head

Height
mm (in)
91.95-92.05 (3.620-3.624)
Distortion
mm
(in) Maximum 0.15 (0.006)
Grinding limit mm (in) Maximum 0.20 (0.008)

Valve and valve guide

Valve head diameter
mm
(in) IN 43.9-44.1 (1.728-1.736) Valve head diameter
mm
(in) EX 35.9-36.1 (1.413-1.421)
Valve head thickness (margin)
mm
(in) IN 0.8—1.2 (0.031-0.047) Valve head thickness (margin)
mm
(in) EX 1.3-1.7 (0.051-0.067)
Valve face angle IN 45° Valve face angle EX 45°
Valve length
mm
(in)
IN Standard 111.89 (4.4051)
Valve length
mm
(in)
IN Minimum 111.39 (4.3854) Valve length
mm
(in)
EX Standard 111.69 (4.3972) Valve length
mm
(in)
EX Minimum 111.19 (4.3776)
Valve stem diameter
mm
(in) IN 8.030-8.045 (0.3161-0.3167) Valve stem diameter
mm
(in) EX 8.025-8.040 (0.3159-0.3165)
Guide inner diameter
mm
(in) IN 8.07-8.09 (0.3177-0.3185) Guide inner diameter
mm
(in) EX 8.07-8.09 (0.3177-0.3185)
Valve stem
to
guide clearance
mm
(in)
IN 0.025-0.060 (0.0010-0.0024)
Valve stem
to
guide clearance
mm
(in) EX 0.030-0.065 (0.0012-0.0026) Valve stem
to
guide clearance
mm
(in)
Maximum 0.20 (0.0079)
Guide projection (Height "A")
mm
(in) 19.1-19.6 (0.752-0.772)

30-5

30 TECHNICAL DATA
Engine model FE 8-valve
Item ECE Middle East General
F8 F6
Valve seat

Seat angle IN 45° Seat angle EX 45°
Seat contact width mm (in) IN 1.2—1.6 (0.047-0.063) Seat contact width mm (in) EX 1.2-1.6 (0.047-0.063)
Seat sinking (Measure valve protruding length)
mm (in)
IN Standard 46.5 (1.831) Seat sinking (Measure valve protruding length)
mm (in)
IN Maximum 48.0 (1.890) Seat sinking (Measure valve protruding length)
mm (in) EX Standard 46.5 (1.831)
Seat sinking (Measure valve protruding length)
mm (in) EX Maximum 48.0 (1.890)

Valve spring

Free length mm (in)
Outer
Inner
Standard
Minimum
51.5(2.028)

Standard
44.0 (1.732)

Minimum
43.3 (1.705)
51.2 (2.016)
52.0 (2.047)

50.6 (1.992)
51.5 (2.028)

45.7 (1.799)
44.0 (1.732)

437 (1.720)1
43.3 (1.705)
Out-of-square mm (in) Maximum 1.8 (0.071)
Setting load/height
N
(kg, lb)/mm
(in)
Outer
128(13.1,29) 136.5
(1
44)

Inner
189 (19,2, 42) 141 (1.61)
124 (12.7, 28) 136.5
(1
44)
193 (19.6,43) 141 (1.61)

128 (13.1, 29)/36.5 (1.44)
189 (19.2, 42)/41 (1.61)

Camshaft

Cam lobe height
mm (in)

IN
EX
Standard
Minimum
Standard
Minimum
38.107-38.207 (1.5003-1.5042)
37.957 (1.4944)
38.110-38.210 (1.5004-1.5043)
37.960 (1.4945)
Journal diameter
mm (in)

Front and Rear (No.
1,5)
31.940-32.035 (1.2575-1.2612)
Center (No. 2,3,4)
Out-of-round Maximum
31.910-32.065 (1.2563-1.2624)
0.05 (0.002)
Camshaft bearing
oil
clearance
mm (in)

Front and Rear (No.
1,5)
0.035-0.085 (0.0014-0.00331
Center (No. 2,3,4) 0.065-0.115 (0.0026—0.0045)
Maximum 0.15 (0.0059)
Camshaft runout mm (in) Maximum 0.03 (0.00121
Camshaft end play mm (in) Standard 0.08—0.16 (0.003—0.006)

Maximum 0.20 (0.008)
Rocker arm and rocker arm shaft

Rocker arm inner diameter mm (in) 16.000-16.027 (0.6299-0.6310)
Rocker arm shaft diameter mm (in) 15.966-15.984 (0.6286-0.6293)
Rocker arm
to
shaft clearance
mm (in)
Standard 0.016—0.061 (0.0006-0.0024)
Maximum 0.10 (0.004)

Cylinder block

Heiaht mm
fin)
289.0 (11.38) 268.5 (10.57)
Distortion mm (in) Maximum 0.15 (0.006)
Grindina limit mm (in)
0.20 (0.008)

Cylinder bore diameter
mm (in)
Standard 86.000—86.019 (3.3858—3.3866)
0.25 (0.010) oversize 86.250-86.269 (3.3957-3.3964)
0.50 (0.020) oversize 86.500-86.519 (3.4055-3.4062)
0.75 (0.030) oversize
1.00 (0.039) oversize

81.000-
(3.1890-
-81.019 -3.1897)
81.250-(3.1988-
-81.269
-3.1996) 81.500-(3.2087-
-81.519 -3.2094)
81.750-(3.2185-
-81.769
-3.2192)

82.000-

(3.2283-
-82.019
-3.2291)
Cylinder bore taper and out-of-round mm (in) Maximum 0.019 (0.0007)

Piston

Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below
oil
ring groove
mm (in)
Standard 85.944-85.964 (3.3836—3.3844) 80.944-80.964
(3.1868—3.1876) Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below
oil
ring groove
mm (in)
0.25 (0.010) oversize 86.194—86.214 (3.3935—3.3942) 81.194—81.214
(3.1966-3.1974)
Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below
oil
ring groove
mm (in) 0.50 (0.020) oversize 86.444-86.464 (3.4033-3.4041) 81.444-81.464
(3.2065-3.2072)

30—6

30 TECHNICAL DATA
~ ——Engine model
Item —
FE 8-valve
F8 F6
~ ——Engine model
Item —
Middle ECE East General
F8 F6
Thrust bearing (center main bearing)

Crankshaft end play
mm
(in) Standard 0.08-0.18 (0.0031-0.0071) Crankshaft end play
mm
(in) Maximum 0.30 (0.0118)
Bearing width
mm (in)

Standard 27.94-27.99 (1.100-1.102)
Bearing width
mm (in)
0.25 (0.010) oversize 28.04—28.09 (1.104-1.106) Bearing width
mm (in)
0.05 (0.020) oversize 28.12-28.17 (1.107-1.109) Bearing width
mm (in)

0.75 (0.030) oversize 28.20—28.25 (1.110—1.112)

Timing belt

Belt deflection
mm
(in)/98
N
(10 kg,
22 lb)
|5.5—6.5 (0.22-0 26) 4.0-5.0 (0.16-0.20)

1B. ENGINE (DOHC)
— Engine model FE DOHC
Item ~ Leaded fuel Unleaded fuel

Type Gasoline, 4-cycle
Cylinder arrangement and number In-line, 4-cylinders
Type
of
combustion chamber Pentroof
Valve system OHC. belt-driven
Bore
x
Stroke mm (in) 86.0
x
86.0 (3.39
x
3.39)
Total piston displacement cc (cu
in)
1,998 (121.9)
Compression ratio 10.0
: 1
9.2
: 1

Standard 1,422 (14.5, 206)—290 1,373 (14.0, 199)—310
Compression pressure Minimum 996 (10.2, 144)—290 961 (9.8, 139)—310
kPa (kg/cm2, psi)-rpm Maximum difference
between cylinders 196 (2.0, 28)
IN Open BTDC 10° 10°
Valve timing
IN Close ABDC 60° 55° Valve timing
EX Open BBDC 60° 55° EX Close ATDC 10° 10°
Valve clearance mm (in) IN 0; Maintenance free Valve clearance mm (in) EX 0; Maintenance free

Cylinder head

Heiaht mm (in) 133.95-134.05 (5.274-5.278)
Distortion mm (in) Maximum 0.15 (0.006)
Grinding mm (in) Maximum 0.20 (0.008)
HLA
to
cylinder head clearance mm (in) Standard 0.025-0.066 (0.0010-0.0026) HLA
to
cylinder head clearance mm (in) Maximum 0.18 (0.0071)

Valve and valve guide

Valve head diameter mm (in) IN 33.6-33.8 (1.323-1.331) Valve head diameter mm (in) EX 28.8-29.0 (1.134—1.142)
Valve head thickness (margin)
mm
(in) IN 1.0-1.7 (0.039-0.067) Valve head thickness (margin)
mm
(in) EX 1.1—1.7 (0.043—0.067)
Valve face angle IN 45° Valve face angle EX 45°
IN Standard 103.18 (4.0622)
Valve length
mm (in)

IN Minimum 102.68 (4.0425) Valve length
mm (in)

EX Standard 103.94 (4.0921) EX Minimum 103.44 (4.0724)
Valve stem diameter mm (in) IN 5.970-5.985 (0.2350-0.2356) Valve stem diameter mm (in) EX 5.965-5.980 (0.2348—0.2354)
Guide inner diameter mm (in) IN 6.01-6.03 (0.2366-0.2374) Guide inner diameter mm (in) EX 6.01—6.03 (0.2366-0.2374)
IN 0.025-0.060 (0.0010-0.0024)
Valve stem
to
guide clearance mm (in) EX 0.030-0.065 (0.0012-0.0026)
Maximum 0.20 (0.0079)
| Guide projection (Height "A") mm (in) 11.4-11.9 (0.449-0.469)

30-8

TECHNICAL DATA 30
——Engine model
Item -
FE DOHC ——Engine model
Item -Leaded fuel Unleaded fuel
Valve seat

Seat angle IN 45° Seat angle EX 45°
Seat contact width
mm
(in) IN 1.2-1.6 (0.047-0.063) Seat contact width
mm
(in) EX 1.2-1.6 (0.047-0.063)
Seat sinking (Measure valve protruding length) mm (in)
IN Standard 36.8 (1.449) Seat sinking (Measure valve protruding length) mm (in)
IN Maximum 37.8 (1.488) Seat sinking (Measure valve protruding length) mm (in) EX Standard 36.8 (1.449)
Seat sinking (Measure valve protruding length) mm (in) EX Maximum 37.8 (1.488)

Valve spring

Free length mm (in)
Outer Standard 39.1 (1.539)
Free length mm (in)
Outer Minimum 38.7 (1.524) Free length mm (in)
Inner Standard 38.0 (1.496) Free length mm (in)
Inner Minimum 37.7 (1.484)
Out-of-square
mm
(in) Maximum Outer 1.4 (0.055), Inner 1.3 (0.051)
Setting load/height
N
(kg, lb)/mm
(in)
Outer 78 (8.0, 17.6)/31.5 (1.240) Setting load/height
N
(kg, lb)/mm
(in)
Inner 123 (12.5, 27.5)/33.0 (1.299)

Camshaft

Cam lobe height
mm (in)

IN Standard 45.005-45.105 (1.772-1.776) 45.002-45 102 (1.772-1.776)
Cam lobe height
mm (in)

IN Minimum 44.855 (1.7659) 44.852 (1.7658) Cam lobe height
mm (in)

EX Standard 45.005—.45.105 (1.772-1.776) 45.002-45.102 (1.772-1.776) Cam lobe height
mm (in)

EX Minimum 44.855 (1.7659) 44.852 (1.7658)
Journal diameter
mm
(in) 29.940-29.965 (1.1787-1.1797) Journal diameter
mm
(in) Out-of-round
|
Maximum 0.05 (0.002)
Camshaft bearing
oil
clearance mm (in) 0.035-0.085 (0.0014-0.0033) Camshaft bearing
oil
clearance mm (in) Maximum 0.15 (0.0059)
Camshaft runout
mm (in)
Maximum 0.03 (0.0012)
Camshaft end play
mm
(in) Standard 0.08-0.10 (0.003-0.004) Camshaft end play
mm
(in) Maximum 0.20 (0.008)

Cylinder block

Height
mm
(in) 289.0 (11.38)
Distortion
mm
(in) Maximum 0.15 (0.006)
Grindino limit
mm
fin) 0.20 (0.008)
Cylinder bore diameter mm (in)
Standard 86.000—86.019 (3.3858-3.3866) Cylinder bore diameter mm (in) 0.25 (0.010) oversize 86.250—86.269 (3.3957—3.3964) Cylinder bore diameter mm (in) 0.50 (0.020) oversize 86.500-86.519 (3.4055-3.4062)
Cylinder bore taper and out-of-round mm (in) Maximum 0.019 (0.0007)

Piston

Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below oil ring groove
mm (in)
Standard 85.944-85.964 (3.3836-3.3834) Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below oil ring groove
mm (in)
0.25 (0.010) oversize 86.194-86.214 (3.3935-3.3942)
Piston diameter measured at 90°
to pin
bore axis and 18.0
mm
(0.709
in)
below oil ring groove
mm (in) 0.50 (0.020) oversize 86.444-86.464 (3.4033-3.4041)
Piston
to
cylinder clearance
mm
(in) Standard 0.036-0.075 (0.0014-0.0030) Piston
to
cylinder clearance
mm
(in) Maximum 0.15 (0.0059)

Piston ring

Thickness mm (in)
TOD
1.47-1.49 (0.0579-0.0587) Thickness mm (in) Second 1.47-1.49 (0.0579-0.0587)

30-9

TECHNICAL DATA 30
1C. ENGINE (DIESEL)
— _____ Engine model Item . RF-CX RF-N

Type Diesel, 4-cycle
Cylinder arrangement and number In-line, 4-cylinders
Type
of
combustion chamber Swirl chamber
Valve system OHC, belt-driven
Bore
x
Stroke
mm (in)
86.0
x
86.0 (3.39
x
3.39)
Total piston displacement
cc
(cu
in)
1,998 (121.9)
Compression ratio 21.1
: 1 |
22.7
: 1

Compression pressure
kPa (kg/cm2, psi)-rpm
Standard 2,943 (30, 427)-200
Compression pressure
kPa (kg/cm2, psi)-rpm Minimum 2,649 (27, 384)-200 Compression pressure
kPa (kg/cm2, psi)-rpm Maximum difference
between cylinders 294 (3.0,
43)

Valve timing
IN Open BTDC 13° 13°
Valve timing
IN Close ABDC 15° 39° Valve timing
EX Open BBDC 60° 60° Valve timing
EX Close ATDC 8° 8°
Valve clearance
mm
(in) IN Cold: 0.25 (0.010), Warm: 0.30 (0.012) Valve clearance
mm
(in) EX Cold: 0.35 (0.014), Warm: 0.40 (0.016)

Cylinder head

Height mm (in) 133.9-134.1 (5.272-5.280)
Distortion mm (in) 0.10 (0.004) max.
Length
of
cylinder head bolt beiow head
mm
(in)
Standard 113.2—113.8 (4.457—4.480) Length
of
cylinder head bolt beiow head
mm
(in) Maximum 114.5 (4.508)

Combustion chamber insert

Recession
mm
(in) 0.020 (0.0008)
Projection
mm
(in) 0.005 (0.0001)

Valve and valve guide

Valve head diameter
mm
(in) IN 39.3-39.5 (1.547—1.555) 40.9-41.1 (1.610—1.618) Valve head diameter
mm
(in) EX 35.0-35.2 (1.378-1.386) 35.9-36.1 (1.413—1.421)
Valve head thickness (margin)
mm
(in) IN 1.80 (0.071) 0.80 (0.031) Valve head thickness (margin)
mm
(in) EX 1.65 (0.065) 0.80 (0.031)
Valve face angle IN 60° 45° Valve face angle EX 45°
Valve length mm (in) IN 106.9(4.209) Valve length mm (in) EX 106.8 (4.205)
Valve stem diameter
mm
(in) IN 7.970-7.985 (0.3138—0.3144) Valve stem diameter
mm
(in) EX 7.965-7.980 (0.3136-0.3142)
Guide inner diameter mm (in) IN 8.025-8.045 (0.3159—0.3167) Guide inner diameter mm (in) EX 8.025-8.045 (0.3159—0.3167)
Valve stem
to
guide clearance
mm (in)

IN 0.040-0.075 (0.0016-0.0030)
Valve stem
to
guide clearance
mm (in)
EX 0.045—0.080 (0.0018-0.0031) Valve stem
to
guide clearance
mm (in)

Maximum 0.1 (0.004)
Guide projection (Height "A")
mm
(in) 8.3-8.8 (0.327-0.346)

Valve seat

Seat angle IN 60° 45° Seat angle EX 45°
Seat contact width
mm
(in) IN 1.4-1.8 (0.055—0.071) 1.7-2.3 (0.067-0.091) Seat contact width
mm
(in) EX 1.64-2.04 (0.065-0.080) 1.7-2.3 (0.067-0.091)
Seat sinking (Measure valve recession)
mm
(in)
IN Standard 0.75-1.05 (0.030-0.041)
Seat sinking (Measure valve recession)
mm
(in)
IN Maximum 2.55 (0.100) Seat sinking (Measure valve recession)
mm
(in) EX Standard 0.75—1.05 (0.030-0.041) Seat sinking (Measure valve recession)
mm
(in) EX Maximum 2.55 (0.100)

Valve spring

Free length
mm
(in) Standard 45.11 (1.776) Free length
mm
(in) Minimum 44.8 (1.764)

30-11