REPAIR INSTRUCTIONS, PART 1
Page 239
255
Figure 255 — Valve Guide Dimensions
INSPECTION
Worn valve guides may result in poor
valve-to-seat contact, valve damage or oil
consumption.
1. Inspect the valve guides for wear, damage,
cracks and looseness. Use a small bore
gauge to obtain an accurate valve guide
bore measurement (Figure 256).
256
Figure 256 — Measuring Valve Guide Bore
1. Exhaust Valve Guide
2. Inlet Valve Guide
3. Valve Guide ID
4. Top End of Guide to
Valve Spring Seat
5. Valve Guide Extension,
Fire Deck to Top of
Guide
6. Valve Guide Bore in
Head
7. Valve Guide OD
1. Bore Gauge 2. Valve Guide Bore
5-111.bk Page 239 Monday, July 10, 2006 2:26 PM
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