Valves, Valve Springs and Valve Seals
NOTE: Identify valves and valve springs as they are re-
moved so that each item can be reinstalled in its original
1. Using an appropriate-sized socket and plastic mallet,
lightly tap the valve retainer to loosen the valve keep-
ers before installing the valve spring compressor.
2. Install spring compressor. Compress spring and re-
move valve keeper.
3. Install the special tool as shown.
VALVE SEAL COMMERCIALLY AVAILABLE
VALVE GUIDE SEAL REMOVER
LISLE P/N 57900 OR KD 3350
4. Remove the valve guide seal.
Intake Valve Dimensions
A Standard (New): 34.9 — 35.1 mm
B Standard (New): 111.05-111.40 mm
C Standard (New): 5.475—5.485 mm
C Service Limit: 5.445 mm (0.2144 in)
D Standard (New): 1.05—1.35 mm
D Service Limit: 0.85 mm (0.033 in)
Exhaust Valve Dimensions
A Standard (New): 29.9—30.1 mm
B Standard (New): 109.60-109.90 mm
C Standard (New): 5.45-5.46 mm
C Service Limit: 5.42 mm (0.2134 in)
D Standard (New): 1.65—1.95 mm
D Service Limit: 1.45 mm (0.057 in)
Cylinder Head Height;
Standard (New): 150.95-151.05
Service Limit: 150.8 mm (5.937 in)
Measure along edges, and 3 ways across center.
NOTE: If camshaft-to-holder oil clearances (page 6-38)
are not within specification, the head cannot be
If camshaft-to-holder oil clearances are within
specifications, check the head for warpage.
If warpage is less than 0.05 mm (0.002 in) cylinder
head resurfacing is not required.
If warpage is between 0.05 mm (0.002 in) and 0.2
mm (0.008 in), resurface cylinder head.
Maximum resurface limit is 0.2 mm (0.008 in) based
on a height of 151 mm (5.945 in).
PRECISION STRAIGHT EDGE