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)
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Valve Guide: Specifications
Valve stem diameter
In
Standard
5.965 - 5.980 mm (0.2348 - 0.2354 inch)
Ex
5.940 - 5.955 mm (0.2339 - 0.2344 inch)
Valve guide I.D.
In & Ex
Standard
6.000 - 6.012 mm (0.2362 - 0.2366 inch)
Stem-to-guide clearance
In
Standard 0.020 - 0.047 mm (0.0008 - 0.0018 inch)
Limit
0.07 mm (0.0027 inch)
Ex
Standard
0.045 - 0.072 mm (0.0018 - 0.0028 inch
Limit
0.09 mm (0.0035 inch)