RAM 2500 Truck 4WD V10-8.0L VIN W (1997)
Valve Guide: Service and Repair
CHECKING CLEARANCE
Measure valve stem guide clearance as follows:
1. Install Black Valve Guide Sleeve Tool C-6819, or equivalent over valve stem for the INTAKE valve and install valve. The special sleeve places
the valve at the correct height for checking with a dial indicator.
2. Install Silver Valve Guide Sleeve Tool C-6818, or equivalent over valve stem for the EXHAUST valve and install valve. The special sleeve places
the valve at the correct height for checking with a dial indicator.
3. Attach Dial Indicator Tool C-3339, or equivalent to cylinder head and set it at right angle of valve stem being measured.
4. Move valve to and from the indicator. The total dial indicator reading should not exceed 0.432 mm (0.017 inch). Ream the guides for valves with
oversize stems if dial indicator reading is excessive or if the stems are scuffed or scored.
NOTE: Service valves with oversize stems are available.
REAMING VALVE GUIDES
Slowly turn reamer by hand and clean guide thoroughly before installing new valve. Ream the valve guides from standard to 0.381 mm (0.015
inch). Use a 2 step procedure so the valve guides are reamed true in relation to the valve seat:
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Step 1-Ream to 0.0763 mm (0.003 inch).
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Step 2-Ream to 0.381 mm (0.015 inch).
