Mazda 2006-2008 RX7 Engine - Technical Data

TECHNICAL DATA
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01–50 TECHNICAL DATA
ENGINE TECHNICAL DATA . . . . . . . . . . 01–50–1
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ENGINE TECHNICAL DATA
E5U015000000E01
Item Specification
Cylinder head gasket contact surface distortion
(Maximum)
0.10 mm {0.004 in}
Manifold contact surfaces distortion (Maximum) 0.10 mm {0.004 in}
Manifold contact surfaces distortion (Maximum
grinding)
0.15 mm {0.006 in}
Valve head margin thickness (Minimum)
IN: 1.62 mm {0.0637 in}
EX: 1.82 mm {0.0716 in}
Valve length (Standard)
IN: 102.99—103.79 mm {4.055—4.086 in}
EX: 104.25—105.05 mm {4.105—4.135 in}
Valve length (Minimum)
IN: 102.99 mm {4.055 in}
EX: 104.25 mm {4.104 in}
Valve stem diameter (Standard)
IN: 5.470—5.485 mm {0.2154—0.2159 in}
EX: 5.465—5.480 mm {0.2152—0.2157 in}
Valve stem diameter (Minimum)
IN: 5.440 mm {0.2142 in}
EX: 5.435 mm {0.2140 in}
Valve guide inner diameter (Standard) 5.509—5.539 mm {0.2169—0.2180 in}
Valve stem to guide clearance (Standard)
IN: 0.024—0.069 mm {0.0009—0.0027 in}
EX: 0.029—0.074 mm {0.0012—0.0029 in}
Valve stem to guide clearance (Maximum) 0.10 mm {0.004 in}
Valve guide protrusion height (standard) 12.2—12.8 mm {0.481—0.503 in}
Valve seat contact width (Standard) 1.2—1.6 mm {0.048—0.062 in}
Valve protrusion height (Standard)
IN: 40.64—42.24 mm {1.600—1.662 in}
EX: 40.50—42.10 mm {1.595—1.657 in}
Valve spring pressing force 390 N {39.76 kgf, 87.67 lbf}
Valve spring standard height H 28.68 mm {1.129 in}
Valve spring out-of-square (Maximum) 1.95 mm {0.0767 in}
Maximum runout (Maximum) 0.03 mm {0.0012 in}
Camshaft standard height (mm {in})
With variable valve timing mechanism
IN: 42.44 {1.671}
EX: 41.18 {1.621}
Without variable valve timing mechanism
IN: 42.12 {1.659}
EX: 41.08 {1.618}
Camshaft minimum height (mm {in})
With variable valve timing mechanism
IN: 42.33 {1.666}
EX: 41.06 {1.616}
Without variable valve timing mechanism
IN: 42.01 {1.653}
EX: 40.96 {1.612}
Camshaft journal diameter (Standard) 24.96—24.98 mm {0.9827—0.9834 in}
Camshaft journal diameter (Minimum) 24.95 mm {0.982 in}
Camshaft journal oil clearance (Standard) 0.035—0.080 mm {0.0014—0.0031 in}
Camshaft journal oil clearance (Maximum) 0.09 mm {0.0035 in}
Camshaft end play (Standard) 0.09—0.24 mm {0.0035—0.0094 in}
Camshaft end play (Maximum) 0.25 mm {0.0098 in}
Tappet bore diameter (Standard) 31.000—31.030 mm {1.2205—1.2216 in}
Tappet diameter (Standard) 30.970—30.980 mm {1.2193—1.2196 in}
Tappet-to-Tappet bore oil clearance (Standard) 0.02—0.06 mm {0.0008—0.0023 in}
Tappet-to-Tappet bore oil clearance (Maximum) 0.15 mm {0.006 in}
Cylinder head gasket contact surfaces distortion
(Maximum)
0.10 mm {0.004 in}
Cylinder bore diameter (Standard) 87.500—87.530 mm {3.4449—3.4460 in}