Service Data - Subaru XT 1988 Service Manual

SERVICE DATA
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Surface warpage limit
Surface grinding limit
Standard height
Refacing angle
Wear limit
Contacting width
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Inner diameter
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Protrusion above head
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Head edge thickness
Stem diameter
Stem oil clearance
Overall length
Free length
Squareness
Tension/spring height
STD: Standard
STD
Limit
STD
Limit
ENGINE
Intake
Exhaust
0.05 mm
0.3mm
90.6 mm
90°
0.5mm
1.2 - 1.8 mm
1.5 - 2.0 mm
(0.0020 in)
(0.012 in)
(3.567 in)
(0.020 in)
(0.047 - 0.071 in)
(0.059 - 0.079 in)
2-3
7.000 -7.015 mm (0.2756 - 0.2762 in)
17.5 - 18.5 mm (0.689 - 0.728 in)
Intake & Exhaust 1.3 mm
(0.051 in)
Intake
Exhaust
Intake
Exhaust
0.8 mm (0.031 in)
6.950 - 6.965 mm (0.2736 - 0.2742 in)
6.945 - 6.960 mm (0.2734 - 0.2740 in)
0.035 - 0.065 mm (0.0014 - 0.0026 in)
0.040 - 0.070 mm (0.0016 - 0.0028 in)
0.15 mm
Intake & Exhaust 107.58 mm
(0.0059 in)
(4.2354 in)
Outer spring
Inner spring
Outer spring
Inner spring
Outer spring
I nner spring
7
50.7 mm
50.3 mm
2.2mm
2.2 mm
203.0 - 238.3 N
(1.996 in)
(1.980 in)
(0.087 in)
(0.087 in)
(20.7 - 24.3 kg, 45.6 - 53.6 Ib)/
41.5 mm (1.634 in)
502.1 - 576.7 N
(51.2 - 58.8 kg, 112.9 - 129.7 Ib)/
31.5 mm (1.240 in)
88.3 - 101.0 N
(9.0 -10.3 kg, 19.8 - 22.7Ib)/
38.5 mm (1.516 in)
201.0 - 230.5 N
(20.5 - 23.5 kg, 45.2 - 51.8 Ib)/
28.5 mm (1.122 in)