4. Engine
Specifications
Repair without extraction from the car – the Civic model
General parameters
| Characteristic | Value | 
| Ignition order | 1–3–4–2 | 
| Numbering of cylinders (in front back) | 1–2–3–4 | 
| Diameter of cylinders, mm | 74.93 | 
| Piston stroke, mm | 89.92 | 
| Working volume, cm3 (l) | 1589 (1.6) | 
Arrangement of cylinders and direction of rotation of the distributor of ignition
|  | 
 | 
Camshaft
| Characteristic | Value | 
| Axial side play, mm | |
| Nominal | 0.051 | 
| Limit admissible | 0.152 | 
| Cam height in the plane of rise, mm | 
 | 
| D16Y5 | 
 | 
| Inlet | 
 | 
| Primary | 38.4277 | 
| Secondary | 32.1920 | 
| Final | 38.7833 | 
| D16Y7 | 
 | 
| Inlet | 35.2984 | 
| Final | 37.2821 | 
| D16Y8 | 
 | 
| Inlet | 
 | 
| Pervichye | 36.7767 | 
| Intermediate | 38.2727 | 
| Secondary | 37.0637 | 
| Final | 38.0086 | 
| Cross beating, mm | 
 | 
| Nominal | 0.025 | 
| Limit admissible | 0.051 | 
| Working gap in bearings, mm | 
 | 
| Nominal | 0.0508÷0.1016 | 
| Limit admissible | 0.152 | 
Oil pump
| Characteristic | Value | 
| Working gaps of gear wheels, mm | 
 | 
| Axial gap of gear wheels | 
 | 
| Nominal | 0.025÷0.076 | 
| Limit admissible | 0.152 | 
| Gap between tops of teeths of gear wheels | 
 | 
| Nominal | 0.025÷0.152 | 
| Limit admissible | 0.203 | 
| Gap between an external gear wheel and walls of the case | 
 | 
| Nominal | 0.102÷0.178 | 
| Limit admissible | 0.203 | 
Efforts of tightening of threaded connections, Nanometer
| Characteristic | Value | 
| Bolts of fastening of covers of bearings of the camshaft | 
 | 
| Bolts on 6 mm | 12.2 | 
| Bolts on 8 mm | 19 | 
| Camshaft cogwheel bolt | 37 | 
| Bolt of fastening of the sensor of fluctuations of a bent shaft | 11.8 | 
| Bolt of a pulley of a bent shaft | 182 | 
| Bolts of a head of cylinders | |
| Stage 1 | 19 | 
| Stage 2 | 49 | 
| Stage 3 | 66 | 
| Stage 4 | 66 | 
| Bolts of fastening of a driving disk to a bent shaft | 73 | 
| Nuts of fastening of the inlet pipeline | 23 | 
| Nuts of fastening of a final collector to a head of cylinders | 31 | 
| Nuts of fastening of a reception pipe to a final collector | |
| D16Y5, D16Y7 | 34 | 
| D16Y8 | 54 | 
| Bolts of the top cover of a final collector | 23 | 
| Bolts of fastening of the lower cover of a final collector (D16Y5, D16Y7) | 10.8 | 
| Bolts of fastening of a flywheel to a bent shaft | 118 | 
| Oxygen sensor (l-probe) | 45 | 
| Oil pressure sensor switch | 17.6 | 
| Drain stopper of the pallet of a case of the engine | 39 | 
| Bolts of fastening of the pallet of a case to the engine | 11.8 | 
| Nuts of fastening of a maslozaborny tube to a pump housing | 10.8 | 
| Fastening of a maslozabornik of the oil pump to the bridge of covers of radical bearings | 10.8 | 
| Bolts of fastening of the case of the oil pump to the engine | 10.8 | 
| Screws of fastening of a cover of the oil pump | 6.8 | 
| Bolts of the holder of a back epiploon of a bent shaft | 10.8 | 
| Bolts of fastening of covers of a gas-distributing belt | 9.7 | 
| Bolt of fastening of a natyazhitel of a gas-distributing belt | 45 | 
| Bolts of fastening of a cover of a head of cylinders | 9.7 | 
| Bolts of fastening of the electromagnetic valve of blocking of VTEC | 11.8 | 
| Bolts of fastening of the water pump | 12.2 | 
Repair without extraction from the car – the Integra model
General parameters
| Characteristic | Value | 
| Ignition order | 1–3–4–2 | 
| Numbering of cylinders (from left to right) | 1–2–3–4 | 
| Diameter of cylinders, mm | 81.03 | 
| Piston stroke, mm | 
 | 
| B18B1 | 88.90 | 
| B18C1 and B18C5 | 87.12 | 
| Working volume, cm3 (l) | |
| B18B1 | 1835 (1.8) | 
| B18C1 and B18C5 | 1803 (1.8) | 
Arrangement of cylinders and direction of rotation of the distributor of ignition
|  | 
 | 
Camshaft
| Characteristic | Value | 
| Axial side play, mm | |
| Nominal | 0.051÷0.152 | 
| Limit admissible | 0.508 | 
| Cam height in the plane of rise, mm | 
 | 
| B18B1 | 
 | 
| Inlet | 33.7160 | 
| Final | 33.5280 | 
| B18C1 | 
 | 
| Inlet | 
 | 
| Pervichye | 33.4112 | 
| Intermediate | 36.3779 | 
| Secondary | 34.5465 | 
| Final | 
 | 
| Pervichye | 33.1114 | 
| Intermediate | 35.7200 | 
| Secondary | 34.3814 | 
| B18C5 | 
 | 
| Inlet | 
 | 
| Pervichye | 33.0886 | 
| Intermediate | 35.9105 | 
| Secondary | 34.7320 | 
| Final | 
 | 
| Pervichye | 32.7838 | 
| Intermediate | 36.3322 | 
| Secondary | 34.6913 | 
| Cross beating, mm | 
 | 
| Nominal | 0.025 | 
| Limit admissible | 0.051 | 
| Working gap in bearings, mm | 
 | 
| B18B1 | 
 | 
| Nominal | 0.0305÷0.0686 | 
| Limit admissible | 0.152 | 
| B18C1 and B18C5 | 
 | 
| Nominal | 0.0508÷0.0889 | 
| Limit admissible | 0.152 | 
Oil pump
| Characteristic | Value | 
| Working gaps of gear wheels, mm | 
 | 
| Axial gap of gear wheels | 
 | 
| Nominal | 0.025÷0.076 | 
| Limit admissible | 0.152 | 
| Gap between tops of teeths of gear wheels | 
 | 
| Nominal | 0.051÷0.152 | 
| Limit admissible | 0.203 | 
| Gap between an external gear wheel and walls of the case | 
 | 
| Nominal | 0.025÷0.076 | 
| Limit admissible | 0.152 | 
Efforts of tightening of threaded connections, Nanometer
| Characteristic | Value | 
| Bolts of fastening of covers of bearings of the camshaft | |
| B18B1 | 12.2 | 
| B18C1 and B18C5 | |
| Bolts on 6 mm | 12.2 | 
| Bolts on 8 mm | 27 | 
| Camshaft cogwheel bolts | |
| B18B1 | 37 | 
| B18C1 and B18C5 | 56 | 
| Bolts of the sensor of fluctuations of a bent shaft | 10.8 | 
| Bolt of a pulley of a bent shaft | 176 | 
| Bolts of a head of cylinders | |
| Stage 1 | 30 | 
| Stage 2 | |
| B18B1 | 83 | 
| B18C1 and B18C5 | 85 | 
| Bolts of fastening of a driving disk to a bent shaft | 73 | 
| Bolts/nut of fastening of the inlet pipeline | 23 | 
| Nuts of fastening of an air chamber of the inlet pipeline (B18C1) | 23 | 
| Nuts of fastening of a final collector to a head of cylinders | 31 | 
| Nuts of fastening of a reception pipe to a final collector | 54 | 
| Bolts of the top cover of a final collector | 23 | 
| Bolts of fastening of a flywheel to a bent shaft | 103 | 
| Oxygen sensor (l-probe) | 45 | 
| Bolts of a masloraspylitel | 17.6 | 
| Oil pressure sensor switch | 17.6 | 
| Bolts of fastening of a maslootrazhatelny plate of the pallet of a case | |
| B18B1 and B18C1 | 10.8 | 
| B18C5 | 9.7 | 
| Drain stopper of the pallet of a case of the engine | 45 | 
| Bolts of fastening of the pallet of a case to the engine | 10.8 | 
| Nuts of fastening of a maslozaborny tube to a pump housing | |
| B18B1 and B18C1 | 10.8 | 
| B18C5 | 9.7 | 
| Fastening of a maslozabornik of the oil pump to the bridge of covers of radical bearings | |
| B18B1 and B18C1 | 10.8 | 
| B18C5 | 9.7 | 
| Bolts of fastening of the case of the oil pump to the engine | 
 | 
| Bolts of 6 mm | |
| B18B1 and B18C1 | 10.8 | 
| B18C5 | 9.7 | 
| Bolts of 8 mm | 23 | 
| Fastening of a cover of the oil pump | |
| 1994 and 1995 | 5.4 | 
| since 1996 | 6.8 | 
| Stopper of the reducing valve of the oil pump | 39 | 
| Bolts of the holder of a back epiploon of a bent shaft | 10.8 | 
| Bolts of fastening of covers of a gas-distributing belt | 9.7 | 
| Bolt of fastening of a natyazhitel of a gas-distributing belt | 5.4 | 
| Nuts of fastening of a cover of a head of cylinders | 9.7 | 
| Bolts of fastening of the electromagnetic valve of blocking of VTEC | 11.8 | 
| Bolts of fastening of the water pump | 11.8 | 
General and capital repairs of the engine
Civic models
General parameters
| Characteristic | Value | 
| Compression pressure in cylinders, kgf/cm2 | 
 | 
| Nominal | 12.9 | 
| The minimum admissible | 9.5 | 
| The maximum admissible difference between cylinders | 2.0 | 
| Oil pressure (the engine is heated-up up to the normal working temperature), kgf/cm2 | 
 | 
| At single turns | 0.7 | 
| With a frequency of rotation of the engine of 3000 rpm | 3.5 | 
Engine block
| Characteristic | Value | 
| Diameter of cylinders, mm | 
 | 
| Nominal | 75.0011÷75.0189 | 
| Limit admissible | 75.0697 | 
| Extreme admissible conicity of the cylinder, mm | 0.051 | 
| Extreme admissible ovality of the cylinder, mm | 0.051 | 
| Limit admissible excess of diameter of the cylinder, mm | 0.510 | 
| Extreme admissible not planeness of the interfaced surface, mm | 0.102 | 
Pistons and piston rings
| Characteristic | Value | 
| Diameter of pistons, mm | 74.9808÷74.9910 | 
| Nominal | 74.9706 | 
| Limit admissible | 5.16 | 
| Height of a point of measurement of diameter from a cut of a skirt, mm | 
 | 
| Gap of landing of the piston in the cylinder, mm | 
 | 
| Nominal | 0.0102÷0.0406 | 
| Limit admissible | 0.051 | 
| Gap of landing of piston rings in flutes, mm | 
 | 
| Top compression ring | 0.0356÷0.0610 | 
| Nominal | 0.127 | 
| Limit admissible | 
 | 
| Second compression ring | 
 | 
| Nominal | 0.0305÷0.0559 | 
| Limit admissible | 0.127 | 
| Gaps in locks of piston rings, mm | |
| Top compression ring | 
 | 
| Nominal | 0.152÷0.305 | 
| Limit admissible | 0.610 | 
| Second compression ring | 
 | 
| Nominal | 0.305÷0.457 | 
| Limit admissible | 0.711 | 
| Oil scraper ring | 
 | 
| Nominal | 0.203÷0.711 | 
| Limit admissible | 0.787 | 
Bent shaft and rods
| Characteristic | Value | 
| Axial side play, mm | |
| Nominal | 0.102÷0.356 | 
| Limit admissible | 0.457 | 
| Necks of radical bearings | 
 | 
| Diameter, mm | 54.9758÷55.0012 | 
| Extreme admissible conicity, mm | 0.0051 | 
| Extreme admissible ovality, mm | 0.0051 | 
| Limit admissible beating, mm | 0.051 | 
| Working gap in radical bearings, mm | 
 | 
| Necks 1 and 5 | 
 | 
| Nominal | 0.0178÷0.0356 | 
| Limit admissible | 0.051 | 
| Necks 2, 3 and 4 | 
 | 
| Nominal | 0.0229÷0.0432 | 
| Limit admissible | 0.051 | 
| Necks of conrod bearings | 
 | 
| Diameter, mm | 44.9758÷45.0012 | 
| Extreme admissible conicity, mm | 0.0051 | 
| Extreme admissible ovality, mm | 0.0051 | 
| Limit admissible beating, mm | 0.051 | 
| Working gap in conrod bearings, mm | 
 | 
| Nominal | 0.0203÷0.0381 | 
| Limit admissible | 0.051 | 
| Side side play of rods, mm | 
 | 
| Nominal | 0.152÷0.305 | 
| Limit admissible | 0.406 | 
Head of cylinders and valvate mechanism
| Characteristic | Value | 
| Extreme admissible not planeness of the interfaced surface of a head, mm | |
| Without pro-point | 0.051 | 
| Repair | 0.203 | 
| Height of a head of cylinders, mm | 92.939÷93.040 | 
| Tilt angle of a facet of valvate saddles | 45 ° | 
| Tilt angle of a working facet of plates of valves | 45 ° | 
| Width of a cylindrical part (corbel) of the forming plate surface of the valve, mm | 
 | 
| Inlet valves | 0.660 | 
| Final valves | 0.940 | 
| Diameter of a core of the valve, mm | 
 | 
| Inlet valves | 
 | 
| Nominal | 5.4788÷5.4889 | 
| Limit admissible | 5.08 | 
| Final valves | 
 | 
| Nominal | 5.4508÷5.4610 | 
| Limit admissible | 5.04 | 
| Internal diameter of the directing plugs of valves, mm | 
 | 
| Nominal | 5.512÷5.537 | 
| Limit admissible | 5.563 | 
| Gap of landing of cores of valves in the directing plugs, mm | 
 | 
| Inlet valves | 
 | 
| Nominal | 0.025÷0.051 | 
| Limit admissible | 0.076 | 
| Final valves | 
 | 
| Nominal | 0.051÷0.076 | 
| Limit admissible | 0.102 | 
| Adjusting height of cores of valves, mm | 
 | 
| Nominal | 53.162÷53.645 | 
| Limit admissible | 53.899 | 
| Free length of valvate springs, mm | 
 | 
| D16Y7 | 57.91 | 
| D16Y5 | 
 | 
| Inlet valves | 56.39 | 
| Final valves | 57.91 | 
| D16Y8 | 
 | 
| Inlet valves | 57.91 | 
| Final valves | 58.67 | 
Efforts of tightening of threaded connections, Nanometer
| Connection type | Value | 
| Bolts of covers of radical bearings | 
 | 
| Stage 1 | 24 | 
| Stage 2 | 52 | 
| Nuts of covers of the lower heads of rods | 31 | 
* See also Specifications to Repair without extraction from the car – the Civic model.
Integra models
General parameters
| Characteristic | Value | 
| Compression pressure in cylinders, kgf/cm2 | 
 | 
| B18B1 | |
| Nominal | 13.9 | 
| The minimum admissible | 9.8 | 
| The maximum admissible difference between cylinders | 2.0 | 
| B18C1 and B18C5 | |
| Nominal | 18.9 | 
| The minimum admissible | 9.8 | 
| The maximum admissible difference between cylinders | 2.0 | 
| Oil pressure (the engine is heated-up up to the normal working temperature), kgf/cm2 | 
 | 
| At single turns | 0.7 | 
| With a frequency of rotation of the engine of 3000 rpm | 3.5 | 
Engine block
| Characteristic | Value | 
| Diameter of cylinders, mm | |
| Nominal | 81.001÷81.026 | 
| Limit admissible | 87.077 | 
| Extreme admissible conicity of the cylinder, mm | 0.051 | 
| Extreme admissible ovality of the cylinder, mm | 0.051 | 
| Limit admissible excess of diameter of the cylinder, mm | 0.254 | 
| Extreme admissible not planeness of the interfaced surface, mm | 0.102 | 
Pistons and piston rings
| Characteristic | Value | 
| Diameter of pistons, mm | 
 | 
| Nominal | 80.975÷81.001 | 
| Limit admissible | 80.975 | 
| Height of a point of measurement of diameter from a cut of a skirt, mm | 15.8 | 
| Gap of landing of the piston in the cylinder, mm | 
 | 
| Nominal | 0.0102÷0.0406 | 
| Limit admissible | 0.051 | 
| Gap of landing of piston rings in flutes, mm | 
 | 
| Top compression ring | 
 | 
| Nominal | 0.0457÷0.0711 | 
| Limit admissible | 0.127 | 
| Second compression ring | 
 | 
| B18B1 (Riken) | 0.0406÷0.0660 | 
| B18B1 (Teikoku) | 0.0457÷0.0711 | 
| B18C1 and B18C5 | 
 | 
| Nominal | 0.0457÷0.0711 | 
| Limit admissible | 0.127 | 
| Gaps in locks of piston rings, mm | 
 | 
| Top compression ring | 
 | 
| B18B1 (Riken) | 0.203÷0.356 | 
| B18B1 (Teikoku) | 0.203÷0.305 | 
| B18C1 and B18C5 | 
 | 
| Nominal | 0.203÷0.356 | 
| Limit admissible | 0.610 | 
| Second compression ring | 
 | 
| Nominal | 0.406÷0.559 | 
| Limit admissible | 0.711 | 
| Oil scraper ring | 
 | 
| B18B1 (Riken) | 0.203÷0.508 | 
| B18B1 (Teikoku) | 0.203÷0.457 | 
| B18C1 and B18C5 | 
 | 
| Nominal | 0.203÷0.508 | 
| Limit admissible | 0.711 | 
Bent shaft and rods
| Characteristic | Value | 
| Axial side play, mm | |
| Nominal | 0.102÷0.356 | 
| Limit admissible | 0.457 | 
| Necks of radical bearings | 
 | 
| Diameter, mm | 54.9758÷55.0012 | 
| No. No. 1, 2, 4 and 5 | |
| No. 3 | |
| B18B1 | |
| B18C1 and B18C5 | |
| Extreme admissible conicity, mm | 0.0051 | 
| Extreme admissible ovality, mm | 0.0051 | 
| Limit admissible beating, mm | 0.051 | 
| Working gap in radical bearings, mm | 
 | 
| Necks 1, 2, 4 and 5 | 
 | 
| Nominal | 0.0178÷0.0356 | 
| Limit admissible | 0.051 | 
| Neck No. 3 | 
 | 
| Nominal | 0.0229÷0.0432 | 
| Limit admissible | 0.051 | 
| Necks of conrod bearings | 
 | 
| Diameter, mm | 44.9758÷45.0012 | 
| Extreme admissible conicity, mm | 0.0051 | 
| Extreme admissible ovality, mm | 0.0051 | 
| Limit admissible beating, mm | 0.051 | 
| Working gap in conrod bearings, mm | 
 | 
| B18B1 | |
| Nominal | 0.0203÷0.0381 | 
| Limit admissible | 0.051 | 
| B18C1 and B18C5 | |
| Nominal | |
| Limit admissible | |
| Side side play of rods, mm | 
 | 
| Nominal | 0.152÷0.305 | 
| Limit admissible | 0.406 | 
Head of cylinders and valvate mechanism
| Characteristic | Value | 
| Extreme admissible not planeness of the interfaced surface of a head, mm | |
| Without pro-point | 0.051 | 
| Repair | 0.203 | 
| Height of a head of cylinders, mm | 92.939÷93.040 | 
| Tilt angle of a facet of valvate saddles | 45 ° | 
| Tilt angle of a working facet of plates of valves | 45 ° | 
| Width of a cylindrical part (corbel) of the forming plate surface of the valve, mm | 
 | 
| Inlet valves | 1.143 | 
| Final valves | 1.448 | 
| Diameter of a core of the valve, mm | 
 | 
| B18B1 | 
 | 
| Inlet valves | 
 | 
| Nominal | 6.5811÷6.5888 | 
| Limit admissible | 6.553 | 
| Final valves | 
 | 
| Nominal | 6.5507÷6.5608 | 
| Limit admissible | 6.528 | 
| B18C1 and B18C5 | 
 | 
| Inlet valves | 
 | 
| Nominal | 5.4762÷5.4839 | 
| Limit admissible | 5.58 | 
| Final valves | 
 | 
| Nominal | 5.4508÷5.4610 | 
| Limit admissible | 5.04 | 
| Internal diameter of the directing plugs of valves, mm | 
 | 
| B18B1 | 
 | 
| Nominal | 6.6046.629 | 
| Limit admissible | 6.655 | 
| B18C1 and B18C5 | 
 | 
| Nominal | 5.512÷5.537 | 
| Limit admissible | 5.563 | 
| Gap of landing of cores of valves in the directing plugs, mm | 
 | 
| Inlet valves | 
 | 
| Nominal | 0.025÷0.051 | 
| Limit admissible | 0.076 | 
| Final valves | 
 | 
| Nominal | 0.051÷0.076 | 
| Limit admissible | 0.102 | 
| Adjusting height of cores of valves, mm | 
 | 
| B18B1 | 
 | 
| Inlet valves | 
 | 
| Nominal | 40.7645÷41.2344 | 
| Limit admissible | 41.2344 | 
| Inlet valves | 
 | 
| Nominal | 42.7660÷43.2369 | 
| Limit admissible | 43.4848 | 
| B18C1 and B18C5 | 
 | 
| Inlet valves | 
 | 
| Nominal | 37.4650÷37.9349 | 
| Limit admissible | 38.1838 | 
| Inlet valves | 
 | 
| Nominal | 37.1653÷37.6352 | 
| Limit admissible | 37.8841 | 
| Free length of valvate springs, mm | 
 | 
| B18B1 | 
 | 
| Inlet valves | 42.367 | 
| Final valves | 47.092 | 
| B18C1 | 
 | 
| Inlet valves | 
 | 
| External | 41.046 | 
| Nihon Hatsujo | 36.170 | 
| Chuo Hatsujo | 36.195 | 
| Final valves | 
 | 
| Nihon Hatsujo | 41.961 | 
| Chuo Hatsujo | 41.935 | 
| B18C5 | 
 | 
| Inlet valves | 
 | 
| External | 43.180 | 
| Internal | 36.830 | 
| Final valves | 
 | 
| External | 41.046 | 
| Internal | 36.170 | 
Efforts of tightening of threaded connections, Nanometer
| Connection type | Value | 
| Bolts of covers of radical bearings | 
 | 
| Stage 1 | 30 | 
| Stage 2 | 
 | 
| B18B1 | 76 | 
| B18C1 and B18C5 | |
| Covers No. No. 1 and 5 | 76 | 
| Covers No. No. 2, 3 and 4 | 65 | 
| Nuts of covers of the lower heads of rods | |
| Stage 1 | 19 | 
| Stage 2 | |
| B18B1 | 31 | 
| B18C1 and B18C5 | 45 | 
* See also Specifications to Repair without extraction from the car – the Integra model.