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Page 188
REPAIR INSTRUCTIONS
185
Figure 185 — Cutting Ring Groove
7. After the groove is cut, remove the cutter
head and base from the cylinder head.
8. Use a honing stone to remove any burrs
around the fire ring groove.
9. Check the fire ring groove depth with depth
gauge J 26948 to verify that the groove
depth meets specification. If the groove
depth does not meet specification, recut as
necessary.
10. Repeat the above procedure to cut each fire
ring groove.
To ensure proper groove depth, always adjust the
cutting tool height when cutting the next groove.
Valve Guide Replacement
[213 EP]
INLET AND EXHAUST VALVE GUIDE
DIMENSIONS
Refer to Figure 186.
r
Valve guide ID (3) — 3/8 inch (9.53 mm)
r
Top end of guide to valve spring seat (4) —
0.959
±
0.040 inch (24.36
±
1.02 mm)
r
Valve guide extension, fire deck to top of
guide (5) — 5.24
±
0.03 inch
(133.10
±
0.76 mm)
r
Valve guide bore in head (6) —
0.687–0.686 inch (17.450–17.424 mm)
r
Valve guide OD (7) — 0.6886–0.6881 inch
(17.4904–17.4777 mm)
1. Socket
2. T-Handle
3. Cutter Head (J 37719)
5_106_00.bk Page 188 Friday, August 4, 2000 11:17 AM
BDC for engine manuals and specs