Total information
Working volume - see Part A
Number of cylinders - see Part A
Work order - 1 - 3 - 4 - 2
Engine identification (first 3 or 5 positions in the serial number)
EW1 - 1500 carburetor
EV1 - 1300 carburetor
EW3 - 1500 central injection
D15A2:
- CRX - 1500 carburetor
- hatchback, sedan and shuttle - 1300 carburetor
D15A3 - 1500 injection
D15B1 - 1500 point injection
D15B2 - 1500 point injection
D15B6 - 1500 multipoint injection
D15A6 - 1600 multipoint injection
Compression pressure (compression) in a cylinder (at 300 rpm. and full throttle)
Denomination
Carburetor engines:
- only 1300 cm3 - 12 bar
- the rest - 11.5 bar
Injection engines:
- only Si - 11 bar
- the rest - 13 bar
Minimum value
Carburetor engines:
- only 1300 cm3 - 10 bar
- the rest - 9.5 bar
Injection engines:
- only Si - 9 bar
- the rest - 9.5 bar
Maximum pressure difference between cylinders - 2 bar
Fuel pressure at normal operating temperature (bar)
From 1984 to 1987
- idling - not less than 1.5
- 3000 rpm - 3.3 - 4.2
1988
- idling - not less than 1.7
- 3000 rpm - 4.2 - 4.9
Since 1989
- idling - not less than 0.7
- 3000 rpm - 3.5
Crankshaft and bearings (dimensions in mm)
Axial clearance:
- standard - 0.1-0.35
- limit - 0.45
Main bearing journal diameter:
- 1500 — 49,976 - 50,000
- 4WD, CRX Si, Civic 1600 — 54,976 - 55,000
- the rest - 49,976 - 50,000
Permissible taper and out-of-roundness of the main journals:
- standard - 0.005
- limit - 0.010
Clearance in the main bearing (standard)
1300 and 1500 - 0.024 - 0.042
1988 (1.5 and 1.6 liters, except 4WD) — 0,024 - 0,042
1988 (4WD only):
- necks 1, 2, 4, 5 - 0.024-0.042
- neck 3 - 0.030-0.048
since 1989 (1.5 liters):
- necks 2, 3, 4 - 0.024-0.042
- necks 1, 5 - 0.018-0.036
since 1989 (1.6 liters):
- necks 1, 5 - 0.018-0.036
- necks 2, 4 - 0.024-0.042
- neck 3 - 0.030-0.048
Clearance in the main bearing (ultimate)
- from 1984 to 1987 - 0.007
- Since 1988 - 0.005
Crankpin diameter
- 1500 — 41.976-42,000
- 4WD, CRX Si, Civic 1600 — 44,976 - 45,000
- the rest - 37,976 - 38,000
Conicity and out-of-roundness of the crankpin
Standard:
- from 1984 to 1987, since 1988 CRX - 44.976 - 45.000
- since 1988 Shuttle and Civic - 0.0025
Limit - 0.010
Gap in connecting rod bearing
Standard - 0.020 - 0.038
Limit:
- from 1984 to 1987 - 0.07
- since 1988 - 0.05
End clearance connecting rod/crankshaft
- Standard - 0.15 - 0.30
- Limit - 0.40
Engine block
Plane distortion - 0.08
Cylinder diameter
From 1984 to 1987:
- standard - 74.00 - 74.02
- limit - 74.10
Since 1988:
- standard - 75.00 - 75.02
- limit - 75.07
Piston/cylinder clearance
Standard - 0.010 - 0.040
Limit:
- From 1984 to 1987 - 0.07
- since 1988 - 0.05
Permissible taper and out-of-roundness of the cylinder - 0.05
Pistons and rings
Diameter (16 mm and above the cut of the skirt)
1984 and 1985:
- standard - 73.97 - 73.99
- limit - 73.96
1986 and 1987:
CRX/CRX Si
- standard - 73.97 - 73.99
- limit - 73.96
CRX HF
- standard - 73.958 - 73.99
- limit - 73.95
Civic Std., OX, GL, Si
- standard - 73.97 - 73.99
- limit - 73.96
1988 and 1989:
- standard - 74.98 - 74.99
- limit - 74.97
Since 1990:
CRX/CRX Si. Shuttle, Civic
- standard - 74.98 - 74.99
- limit - 74.97
CRX HF (8 valve engine)
- standard - 74.97 - 74.99
- limit - not allowed
Lateral gap in the rings
Top ring:
- standard - 0.030 - 0.060
- limit — 0.13
Second ring:
- standard - 0.030 - 0.055
- limit — 0.13
Gap in the castle
From 1984 to 1987
Top and second ring:
- standard - 0.15 - 0.35
- limit - 0.60
Oil scraper ring (1987 only 1300 engine with central injection):
- standard - 0.30 - 0.90
- limit - 1.1
Oil scraper ring (rest):
- standard - 0.20-0.8
- limit - 0.9
1988
Top ring:
- standard - 0.15 - 0.35
- limit - 0.60
Second ring:
- standard - 0.30 - 0.35
- limit - 0.60
Oil ring:
- standard (Shuttle only) — 0,20 - 0,60
- standard (rest) — 0,20 - 0,80
- ultimate (Shuttle only) — 0,70
- ultimate (rest) — 0,90
Since 1989 (except Shuttle)
Top ring
- standard - 0.15 - 0.30
- limit - 0.60
Second ring:
- standard - 0.30 - 0.45
- limit - 0.60
Oil ring:
- standard - 0.20-0.8
- limit - 0.9
1990 (Shuttle only)
Top ring:
- standard - 0.15 - 0.35
- limit - 0.60
Second ring (DX):
- standard - 0.15 - 0.35
- limit - 0.60
Vtorov ring (4WD):
- standard - 0.30 - 0.45
- limit - 0.60
Oil ring:
- standard - 0.20 - 0.80
- limit - 0.9
Valves and springs
Valve stem diameter (from 1984 to 1987)
Additional valve:
- standard - 6.572 - 6.587
- limit - 6.54
Inlet valve:
- standard - 6.58 - 6.59
- limit - 6.55
Exhaust valve:
- standard - 6.58 - 6.59
- limit - 6.52
Since 1988
Inlet valve:
- standard - 5.48 - 5.49
- limit - 5.45
Exhaust valve:
- standard - 5.45 - 5.46
- limit - 5.42
Valve guide clearance (from 1984 to 1987)
Additional valve:
- standard - 0.023 - 0.058
- limit - 0.08
Inlet valve (1987 Civic only):
- standard - 0.04 - 0.10
- limit - 0.16
Inlet valve (rest):
- standard - 0.02 - 0.05
- limit - 0.08
Exhaust valve (1987 Civic only):
- standard - 0.10 - 0.16
- limit - 0.22
Exhaust valve (rest):
- standard - 0.05 - 0.08
- limit - 0.11
Since 1988
Inlet valve:
- standard - 0.02 - 0.05
- limit - 0.08
Exhaust valve:
- standard - 0.05 - 0.08
- limit - 0.11
Installation height of valve springs
- Additional valve - 25.00
- Inlet valve: 1984 - 43.00
- Exhaust valve: 1984 - 43.00
Free length of springs (From 1984 to 1987)
Additional valve:
- standard - 31.73
- limit - 31.1
Internal spring:
- standard - 44.02
External spring (CRX HF (1985), Civic 1300):
- standard - 49.1
- limit - 48.1
External spring (1986 CRX HF):
- standard - 43.15
- limit - 42.1
External spring (CRX Si):
- standard - 47.45
External spring (rest):
- standard - 47.6
- limit - 46.6
Since 1988
Inlet valve (8-valve CRX HF engine):
- standard - 51.46
- limit - 50.62
Inlet valve (rest):
- standard - 48.58
- limit - 47.64
Exhaust valve (8-valve CRX HF engine):
- standard - 56.28
- limit - 55.21
Exhaust valve (rest):
- standard - 49.19
- limit - 48.32
Valve plate thickness (From 1984 to 1987)
Inlet valve:
- standard - 1.05
- limit - 1.0
Exhaust valve:
- standard - 1.65-1.95
- limit - 1.95
Since 1988
Inlet valve:
- standard - 0.85-1.15
- limit - 0.65
Exhaust valve:
- standard - 1.05-1.35
- limit - 0.95
Tightening torques for threaded connections (N·m)
Connecting rod cap nuts - 31
Main bearing cap bolts
From 1984 to 1987 - 45
Since 1988:
- separate covers with a bridge - 65
- cover body - 45