Valve Guides, Replacing: Removing
-- Cleaning and checking cylinder head.
Do not re-work the cylinder heads any more:
- If the valve seat rings cannot be re-worked any more. Pay attention to the minimum dimensions. Refer to VALVE SEATS, REWORKING .
- If the sealing surface was worked to the minimum dimension -a-.
Reworking Dimension, Cylinder Head:
- -a- : minimum 132.6 mm
NOTE:
If the sealing surfaces are reworked, the valves must be set deeper at the same dimension. The valve seat rings must be re-worked. Otherwise the valve will hit up against the pistons.
Be careful not to exceed the minimum dimension. Refer to VALVE SEATS, REWORKING .
-- Remove any worn valve guides from the camshaft side using a :3121 .
Remove worn valve guides from the combustion side with the shouldered repair guide.