VALVE GUIDES I. 1. In case of valve stem sticking in valve guide bore or Excessive clearance between them, remove valve guide From cylinder head using drift (Part No.2868 5890 06 05). 2. Check the condition of valve guide oil seals. 3. Check valve guide bore diameter in cylinder head and if necessary, ream valve guide bore in cylinder head to next over size. 4. Install matching size valve guide in cylinder head using drift (Part No. 2868 5890 06 05) and spacer. 5. Fit Valve guide oil seals VALVE GUIDE SPECIFICATION Dimension Intake Valve Exhaust Valve Valve Guide Bore in Cylinder Head Ø 9.977 - 10.004 Ø 9.977 - 10.004 Valve Guide O.D. Normal : Ø10 (+0.043, +0.034) Normal : Ø10 (+0.043, +0.034) Valve Guide I.D. Normal : 6 (+0.012) Normal : 6 (+0.012) Valve Guide Length 45.5 mm 45.5 mm NOTE Valve Guides and Valve Seats are separately not serviceable. They come along with the cylinder head • as an assembly Diesel Engine Ph-2 (CAFÉ) 71
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