Install the new guide from the top of the head using a suitable punch. Smear the
guide with oil before installation.
Ream the valve guide using a suitable reamer and lubricate with cutting uid.
Rotate the reamer when extracting it to avoid scoring the valve guide.
When a valve guide is changed, the valve seat must be refaced.
Check clearance again as outlined above.
Ret the sealing rings (1).
Valve