N |
SPECIFICATION |
LIMIT |
EPSILON 1.0 |
EPSILON 1.1 |
General |
Type |
In-line, SOHC |
|
Number of cylinders |
4 |
|
Bore |
66mm (2.5984in) |
67mm (2.6378in) |
|
Stroke |
73mm (2.8740in) |
77mm (3.0315in) |
|
Total displacement |
999cc (60.9 cu.in) |
1,086cc (66.3 cu.in) |
|
Compression ratio |
9.7 : 1 |
10.0: 1 |
|
Firing order |
1-3-4-2 |
|
Valve timing |
Intake valve |
Opens (BTDC) |
5° |
|
Closes (ABDC) |
35° |
|
Exhaust valve |
Opens (BBDC) |
43° |
|
Closes (ATDC) |
5° |
|
Cylinder head |
Flatness of gasket surface |
Less than 0.03mm (0.0012in) |
0.10mm (0.0039in) |
Flatness of manifold mounting surface |
Intake |
Less than 0.15mm (0.0059in) |
0.30mm (0.0118in) |
Exhaust |
Less than 0.15mm (0.0059in) |
0.30mm (0.0118in) |
Valve guide hole diameter |
STD |
10.000 ~ 10.015mm (0.3937 ~ 0.3943in) |
|
0.05 OS |
10.050 ~ 10.068mm (0.3957 ~ 0.3964in) |
|
0.25 OS |
10.250 ~ 10.268mm (0.4035 ~ 0.4043in) |
|
0.50 OS |
10.500 ~ 10.518mm (0.4134 ~ 0.4141in) |
|
Intake valve seat ring hole diameter |
STD |
24.000 ~ 24.021mm (0.9449 ~ 0.9457in) |
|
0.3 OS |
24.300 ~ 24.321mm (0.9567 ~ 0.9575in) |
|
0.6 OS |
24.600 ~ 24.621mm (0.9685 ~ 0.9693in) |
|
Exhaust valve seat ring hole diameter |
STD |
29.000 ~ 29.021mm (1.1417 ~ 1.1426in) |
|
0.3 OS |
29.300 ~ 29.321mm (1.1535 ~ 1.1544in) |
|
0.6 OS |
29.600 ~ 29.621mm (1.1654 ~ 1.1662in) |
|
Camshaft |
Cam height |
Intake |
33.941 ~ 34.141mm (1.3363 ~ 1.3441in) |
|
Exhaust |
34.055 ~ 34.255mm (1.3407 ~ 1.3486in) |
|
Journal outer Diameter |
40.940 ~ 40.955mm (1.6118 ~ 1.6124in) |
|
Bearing oil clearance |
0.045 ~ 0.085mm (0.0018 ~ 0.0033in) |
|
End play |
0.07 ~ 0.19mm (0.0028 ~ 0.0075in) |
|
Rocker arm |
Rocker arm inner diameter |
17.010 ~ 17.028mm (0.6697 ~ 0.6704in) |
|
Rocker arm shaft outer diameter |
16.985 ~ 16.998mm (0.6687 ~ 0.6692in) |
|
Valve |
Valve length |
Intake |
99.55mm (3.9193in) |
|
Exhaust |
99.05mm (3.8996in) |
|
Stem outer diameter |
Intake |
5.465 ~ 5.480mm (0.2152 ~ 0.2157in) |
|
Exhaust |
5.430 ~ 5.450mm (0.2138 ~ 0.2146in) |
|
Face angle |
45° ~ 45°30' |
|
Thickness of valve head (margin) |
Intake |
0.8mm (0.0315in) |
0.50mm (0.019in) |
Exhaust |
1.2mm (0.0472in) |
0.90mm (0.035in) |
Valve stem to valve guide clearance |
Intake |
0.020 ~ 0.047mm (0.0008 ~ 0.0019in) |
|
Exhaust |
0.050 ~ 0.082mm (0.0020 ~ 0.0032in) |
|
Valve guide |
Length |
Intake |
46.0mm (1.8110in) |
|
Exhaust |
48.0mm (1.8898in) |
|
Valve seat |
Width of seat contact |
Intake |
0.9 ~ 1.3mm (0.0354 ~ 0.0512in) |
|
Exhaust |
0.9 ~ 1.3mm (0.0354 ~ 0.0512in) |
|
Seat angle |
Intake |
43°30' ~ 44° |
|
Valve spring |
43°30' ~ 44° |
|
Valve spring |
Free length |
40.50mm (1.5945in) |
|
Load |
15.6±0.9kg/32.0mm (34.4±2.0lb/1.2598in) |
|
33.3±1.8kg/24.5mm (73.4±4.0 lb/0.9646in) |
|
Out of squareness |
Less than 1.5° |
|
Valve clearance |
Cold (20°C) [68°F]
Only for reference |
Intake |
0.15 ~ 0.21mm (0.0059 ~ 0.0083in) |
|
Exhaust |
0.19 ~ 0.25mm (0.0075 ~ 0.0098in) |
|
Hot (80 ~ 95°C)
[176 ~ 203°F] |
Intake |
0.22 ~ 0.28mm (0.0087 ~ 0.0110in) |
|
Exhaust |
0.27 ~ 0.33mm (0.0106 ~ 0.0130in) |
|
Cylinder block |
Cylinder bore |
66.000 ~ 66.030mm
(2.5984 ~ 2.5996in) |
67.000 ~ 67.030mm
(2.6378 ~ 2.6390in) |
|
Flatness of gasket surface |
Less than 0.05mm (0.002in) |
|
Piston |
Piston outer diameter |
65.970 ~ 66.000mm
(2.5972 ~ 2.5984in) |
66.970 ~ 67.000mm
(2.6366 ~ 2.6378in) |
|
Piston to cylinder clearance |
0.020 ~ 0.040mm (0.0008-0.0016in) |
|
Ring groove width |
No. 1 ring groove |
1.22 ~ 1.24mm (0.0480 ~ 0.0488in) |
|
No. 2 ring groove |
1.21 ~ 1.23mm (0.0476 ~ 0.0484in) |
|
Oil ring groove |
2.01 ~ 2.03mm (0.0791 ~ 0.0799in) |
|
Piston ring |
Side clearance |
No. 1 ring |
0.03 ~ 0.07mm (0.0012 ~ 0.0028in) |
0.10mm (0.0039in) |
No. 2 ring |
0.02 ~ 0.06mm (0.0008 ~ 0.0024in) |
0.10mm (0.0039in) |
Oil ring |
0.06 ~ 0.15mm (0.0024 ~ 0.0059in) |
|
End gap |
No. 1 ring |
0.15 ~ 0.30mm (0.0059 ~ 0.0118in) |
|
No. 2 ring |
0.30 ~ 0.50mm (0.0098 ~ 0.0157in) |
|
Oil ring |
0.20 ~ 0.70mm (0.0079 ~ 0.0276in) |
|
Piston pin |
Piston pin outer diameter |
17.000 ~ 17.003mm (0.6693 ~ 0.6694in) |
|
Piston pin hole inner diameter |
17.011 ~ 17.015mm (0.6697 ~ 0.6699in) |
|
Piston pin hole clearance |
0.008 ~ 0.014mm (0.0003 ~ 0.0006in) |
|
Connecting rod small end hole inner diameter |
16.974 ~ 16.985mm (0.6683 ~ 0.6687in) |
|
Connecting rod small end hole clearance |
-0.029 ~ -0.015mm (-0.0006 ~ -0.0003in) |
|
Piston pin press-in load |
500 ~ 1100kg (1102.3 ~ 2425.1lb) |
|
Connecting rod |
Connecting rod big end inner diameter |
41.000 ~ 41.015mm (1.6142 ~ 1.6148in) |
|
Connecting rod bearing oil clearance |
0.012 ~ 0.041mm (0.0005 ~ 0.0016in) |
|
Side clearance |
0.10 ~ 0.25mm (0.0039 ~ 0.0098in) |
0.40mm (0.0157in) |
Crankshaft |
Main journal outer diameter |
41.982 ~ 42.000mm (1.6528 ~ 1.6535in) |
|
Pin journal outer diameter |
37.980 ~ 38.000mm (1.4953 ~ 1.4961in) |
|
Main bearing oil clearance |
0.020 ~ 0.038mm (0.0008 ~ 0.0015in) |
|
End play |
0.05 ~ 0.25mm (0.0020 ~ 0.0098in) |
|
Flywheel |
Run out |
0.13mm (0.0051in) |
|
Oil pump |
Side clearance |
Inner rotor |
0.040 ~ 0.095mm (0.0016 ~ 0.0037in) |
|
Outer rotor |
0.040 ~ 0.095mm (0.0016 ~ 0.0037in) |
|
Body clearance |
0.100 ~ 0.181mm (0.0039 ~ 0.0071in) |
|
Relief valve opening pressure |
490.33±49.03kpa (5±0.5kg/cm², 71.12±7.11psi) |
|
Relief spring |
Free length |
38.6mm (1.5197in) |
|
Load |
3.65±0.4kg/33mm (8.0±0.85 lb/1.2992in) |
|