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

Diameter
Inner
Standard (New) 6.987-7.013 mm (0.2751-0.2761 inches)
Service Limit (Maximum) 7.050 mm (0.278 inches)
Outer
Standard (New) 11.393-11.407 mm (0.4485-0.4491 inches)

Stem to Guide Clearance
Intake
Standard (New) 0.025-0.064 mm (0.001-0.0025 inches)
Service Limit (Maximum) 0.115 mm (0.004 inches)
Exhaust
Standard (New) 0.037-0.082 mm (0.0015-0.0032 inches)
Service Limit (Maximum) 0.135 mm (0.005 inches)