01.8 Checking, exchanging valve guides 352/352 A' 4 Select valve guide so that overlap specification is met. See table on page 1.2/4. 5 Heat cylinder head. 6 Coat new valve guide with graphite oil and posi- tion in cylinder head bore. 7 Slip spacing sleeve of special tool No_ 10 over valve guide. 8 Knock valve guide into position, using special tool No. 10. 9 Check valve guide for firm fit, either by knock- ing with hammer or by applying test pressure. Loose valve guides are to be knocked out again and replaced by valve guides of larger outside diameter. 10 Ream inside diameter of valve guide, using spe- cial tool No_ 11 or No. 12.
11 Check inside diameter of valve guide, using spe- cial tool No. 16 or No. 18. 12 Re-assemble cylinder head, referring to 5.1/1. 6.1/2