Service Data and Specifications (S.D.S.) - Inspection and Adjustment (Cont'd) (Camshaft and camshaft bearing / Valve timing)
EM-264spec tableCam height, valve lift, and valve timing differ between SR20DE and SR20DET.
Inspection and Adjustment (Cont'd)
CAMSHAFT AND CAMSHAFT BEARING
Camshaft and camshaft bearing (Unit: mm (in))
Camshaft journal to bearing clearance
Standard0.045 - 0.086 (0.0018 - 0.0034)
Limit0.12 (0.0047)
Inner diameter of camshaft bearing
Standard28.000 - 28.021 (1.1024 - 1.1032)
Limit—
Outer diameter of camshaft journal
Standard27.935 - 27.955 (1.0998 - 1.1006)
Limit—
Camshaft runout [T.I.R.*]
StandardLess than 0.02 (0.0008)
Limit0.1 (0.004)
Camshaft sprocket runout [T.I.R.*]
StandardLess than 0.25 (0.0098)
Limit—
Camshaft end play
Standard0.055 - 0.139 (0.0022 - 0.0055)
Limit0.20 (0.0079)
Cam height "A" / Valve lift (Unit: mm (in))
Cam height "A" - Intake SR20DE
Value38.408 - 38.598 (1.5121 - 1.5196)
Cam height "A" - Intake SR20DET
Value38.648 - 38.838 (1.5216 - 1.5291)
Cam height "A" - Exhaust SR20DE
Value37.920 - 38.110 (1.4929 - 1.5004)
Cam height "A" - Exhaust SR20DET
Value38.648 - 38.838 (1.5216 - 1.5291)
Wear limit of cam height
Value0.2 (0.008)
Valve lift - Intake SR20DE & SR20DET
Value10.0 (0.394)
Valve lift - Exhaust SR20DE
Value9.2 (0.362)
Valve lift - Exhaust SR20DET
Value10.0 (0.394)
NOTE
*: Total indicator reading
Valve timing
Valve timing (Unit: degree)
SR20DE
a240°
b248°
c9°
d59°
e9°
f51°
SR20DET
a248°
b248°
c14°
d54°
e8°
f60°