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A1
INLET VALVE ASSEMBLY
SECTION
A1.1 Inlet Head Removal
Remove inlet flange nuts and nylon pipes. Remove Allen screws from cylinders and pull back
cylinders. The bolts from the head assembly can now be removed.Take care when removing the valve
strike plate.
A1.2 Inlet Valve Disc Removal
Secure valve stem and unscrew retaining nut. Inspect strike plate before re-fitting.
A1.3 Cylinder Piston Seal Renewal.
Remove 4 allen screws from cylinder body, secure piston across flats and unscrew valve stem.
Remove circlip from cylinder body and pull out piston. New seals should be fitted using silicon free
grease, press out retaining cover nose seal and renew.
For re-assembly, follow reverse procedure always fitting new moulded gaskets, and 'O' ring on center
head bolt.. Ensure that the strike plate is located with it's recessed side towards the valve disks.
TORQUE HEAD BOLTS TO 34Nm (25lbs.ft).
Page 6 of 36
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