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

Type Powdered Metal Inserts
Guide Bore Diameter 7.975 - 8.000 mm (0.314 - 0.315 inch)
Intake Stem To Guide Clearance:
New Valve 0.025 - 0.095 mm (0.001 - 0.003 inch)
Maximum Allowed Rocking Method 0.247 mm (0.010 inch)
Exhaust Stem To Guide Clearance:
New Valve 0.051 - 0.175 mm (0.002 - 0.006 inch)
Maximum Allowed Rocking Method 0.414 mm (0.016 inch)