Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Valve Guide

Valve arrangement (front to rear)
Valve guide bore diameter 7.044 - 7.015 mm (0.2773 - 0.2762 inch)
Valve stem diameter-intake 6.995 - 6.975 mm (0.2754 - 0.2746 inch)
Valve stem diameter-exhaust 6.970 - 6.949 mm (0.2744 - 0.2736 inch)
Valve stem-to-guide clearance-intake 0.069 - 0.020 mm (0.0027 - 0.0008 inch)
Valve stem-to-guide clearance-exhaust 0.095 - 0.045 mm (0.0037 - 0.0018 inch)
Valve head diameter-intake 37.11 - 36.86 mm (1.461 - 1.4512 inch)