Operation CHARM: Car repair manuals for everyone.
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

Oversize Rework Dimensions Of Valve Guide Hole
Both intake and exhaust
Specifications 0.05 O.S. Millimeter (mm)
Limit 11.05 - 11.068 Millimeter (mm)
Specifications 0.25 O.S. Millimeter (mm)
Limit 11.25 - 11.268 Millimeter (mm)
Specifications 0.50 O.S. Millimeter (mm)
Limit 11.50 - 11.518 Millimeter (mm)
Installed Dimension O.D. Intake Specifications 10.05 Millimeter (mm)
Exhaust Specifications 11 Millimeter (mm)
Service Size Specifications 0.05, 0.25, 0.50 Oversize Millimeter (mm)