• Assemble cylinder head onto support plate (N. 8000H5015).
• Fit supporting bracket (N. 8000H5017), spindle with handle (N.8000H5016),
connector (N. 8000H5018), and compression plate (N.8000H5019).
• Precharge springs using the compression plate (N. 8000H5019).
• Remove valve collets (1).
• Remove supporting bracket (N. 8000H5017), spindle with handle
(N.8000H5016), connector (N. 80005018), and compression plate
(N.80005019).
• Remove support plate (N. 80005015).
• Take out valves downward .
Removing valve spring
• Take upper retainer (1), and valve spring (2) out of cylinder head.
Removing valve stem seal
• Remove valve stem seal (1) with a suitable auxiliary tool.
• Remove spring (2) lower retainer.