Cylinder Head Removal
- With hood removed, cooling system drained and battery cables disconnected, loosen retaining clip on hose which connects radiator to thermostat housing. Pull hose clear of housing.
- Remove carburetors and air cleaners and remove rocker cover. Remove spark plug wires and spark plugs. Remove clip holding vacuum pipe onto hot water control valve. If equipped with heater, disconnect inlet hose.
- Loosen top clip on water by-pass hose and remove heater hose and pipe. Remove intake and exhaust manifolds as previously described.
- Loosen rocker shaft bracket nuts and external cylinder head bolts gradually, a turn at a time, until load is released. Remove rocker shaft bracket nuts and lift off rocker assembly together with brackets.
- Remove push rods and keep them in order of removal. Cylinder head may now be removed. Lift head straight up to prevent studs from binding in holes. To install, reverse removal procedure.NOTE: To facilitate breaking cylinder head joint, tap each side of head with a drift made of wood.
VALVES
| Engine & Valve | Head Diam. In. (mm) | Face Angle | Seat Angle | Seat Width In. (mm) | Stem Diameter In. (mm) | Stem Clearance In. (mm) | Valve Lift In. (mm) | |
|---|---|---|---|---|---|---|---|---|
| 1098cc | ||||||||
| Intake | 1.213-1.218 | 45 | 45 | ..... | .2793-.2798 | .0015-.0025 | .312 | |
| (30.8-30.9) | ..... | (7.09-7.11) | (.04-.06) | (7.9) | ||||
| Exhaust | 1.000-1.005 | 45 | 45 | ..... | .2788-.2793 | .002-.003 | .312 | |
| (25.4-25.5) | ..... | (7.08-7.09) | (.05-.08) | (7.9) | ||||
| 1275cc | ||||||||
| Intake | 1.307-1.312 | 45 | 45 | ..... | .2793-.2798 | .0015-.0025 | .318 | |
| (33.2-33.3) | ..... | (7.09-7.11) | (.04-.06) | (8.1) | ||||
| Exhaust | 1.152-1.157 | 45 | 45 | ..... | .2788-.2793 | .0015-.0025 | .318 | |
| (29.36-29.39) | ..... | (7.08-7.09) | (.04-.06) | (8.1) | ||||