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Standards and Service Limits
Cylinder Head/Valve Train (B18Bl engine)Section 6
*: Measured between the camshaft and rocker arm.
NH: NIHON HATSUJO manufactured valve spring
CH: CHUO HATSUJO manufactured valve spring
MEASUREMENTSTANDARD (NEW) I SERVICE LIMIT
Compression250 rpm and wide open throttle Minimum
kPa (kgf/cm' , psi) Maximum variation930 (9.5, 135)200 Q.0,281
Cylinder headWarpageHeightta,|* - 132.05 (5.195 - 5.199)0.05 (0.002)
CamshaftEnd playCamshaft-to-holder oil clearanceTotal runoutCam lobe height lNEX
0.05 - 0.15 (0.002 - 0.006)0.030 - 0.069 (0.0012 - 0.0027)0.03 (0.001) max.33.7 16 11.327 4l33.528 ( 1.3200)
0.5 (0.02)
0.15 (0.006)
0.04 (0.002)
ValveValve clearance (Cold)" lNEX
Valve stem O.D. lNEX
Stem-to-guide clearance lNEX
0.08 - 0.12 (0.003 - 0.005)0.16 - 0.20 (0.006 - 0.00816.580 - 6.590 (0.2591 - 0.2594)6.550 - 6.560 (0.2579 - 0.2583)
0.02 - 0.05 (0.001 - 0.002)0.05 - 0.08 (0.002 - 0.003)
ouu to.rutt6.52 rc.2571.0.08 (0.003)
0.1 1 (0.004)
Valve seatwidth lNEX
stem installed height lNEX
1 .25 - 1.55 (0.049 - 0.061 )1.25 - 1 .55 (0.049 - 0.061 )40.765 - 41.235 (1.6049 - 1.6234142J65 - 43.235 (1.6837 - 1.70221
2.0 (0.08)
2.0 (0.08)
41.485 (1.6333)
43.485 (1.71201
Valve springFree length (Reference)IN NHCHEX
41.27 (1.6251
41.28 (1.625)
44.32 t1-7 451
Valve guidet.D. lNEX
Installed height lNEX
6.61 - 6.63 (0.260 - 0.261)6.61 - 6.63 (0.260 - 0.261)13.7 5 - 1 4.25 (0.541 - 0.561 )15.75 - 16.25 (0.620 - 0.640)
6.6s (0.262)
6.65 (0.262)
Standards and Service Limits
8C1. 818C5 engines)Section 6Gylinder Head/Valve Train (B'lEC'1,
MEASUREMENTSTANDARD (NEW}SERVICE LIMIT
Compression250 rpm and wide open throttle Minimum
kPa (kgf/cm' , psi) Maximum variation930 (9.5, 135)200 t2-0,281
Cylinder headWarpageHeightr** - 142.05 (5.589 - 5.593)0.05 (0.002)
CamshaftEnd playCamshaft-to-holder oi I clearanceTotal runoutCam lobe height lNPrimarY 818C1/818C5 engineMid 818C1/818C5 engineSecondarY 818C1/B18C5 engine
EXPrimarv 818C1/818C5 engineMid B18C1/818C5 engineSecondarv B1 8C1/818C5 engine
0.05 - 0.15 (0.002 - 0.006)
0.050 - 0.089 (0.0020 - 0.0035)0.03 (0.001) max.
33.41 1 (1.3154)/33.088 (1.3027)
36.377 (.43221/36.865 (1.4138)
34.547 (1.3601) 134.132 11-367 4l
33.1 1 1 ( 1.3036) 132.7 85 (1.29071
35.720 (1.4063)/36.333 (1.4304)
34.381 (1.3536)/34.691 (1.3658)
0.s (0.02)
0.15 (0.006)
0.04 (0.002)
ValveValve clearance (Cold)* lNEX
Valve stem O.D. lNEX
Stem-to-guide clearance lNEX
0.15 - 0.19 (0.006 - 0.007)0.17 - 0.2't (0.007 - 0.008)5.475 - 5.485 (0.2156 - 0.21595.450 - 5.460 (0.2146 - 0.2150
0.025 - 0.055 (0.0010 - 0.0022
0.050 - 0.080 (0.0020 - 0.0031
in* to.r',ool5.420 (0.2134)
0.08 (0.003)
0.1 1 (0.004)
Valve sealWidth lN 818C1 engineB18C5 engineEX B18C1 engine818C5 engine
Stem installed height lNEX
1.25 - 1.55 (0.049 - 0.061)
0.85 - 1.15 (0.033 - 0.045)1.25 - 1.55 (0.049 - 0.061)0.85 - 1.15 (0.033 - 0.045)37.465 - 37.935 (1.4750 - 1.4935)
37.165 - 37.635 (1.4632 - 1.48171
2.0 (0.08)
2.0 (0.08)
2.0 (0.08)
2.0 (0.08)
38.185 (1.5033)
37.885 (1.4915)
Valve springFree length (Referencel B18C1 engine:lN Outerlnner NHCHEX NHCH
818C5 engine:lN OuterlnnerEX Outerlnner
41.05 (1.616)
36.16 (1.424)
36.19 (1.425)
41 .96 (1.652)
41.94 (1.651)
43.19 (1.700)
36.84 (1 .450)41.05 (1.616)
36.16 (1.424)
Valve guidet.D. lNEX
Installed height lNEX
5"51 - 5.53 {'0.217 -0.2181
5.51 - 5.53 rc.217 - 0.218112.55 - 13.05 (0.494 - 0.5141
12.55 - 13.05 (0.494 - 0.514)
5.55 (0.219)
5.55 (0.219)
Rocker armArm-to-shaft clearance lNEX0.025 - 0.052 (0.0010 - 0.0020)0.025 - 0.052 (0.0010 - 0.0020)0.08 (0.003)
0.08 (0.003)
*: Measured between the camshaft and rocker arm
NH: NIHON HATSUJO manufactured valve spring
CH: CHUO HATSUJO manufactured valve spring
