Grand Caravan FWD V6-201 3.3L VIN R MFI (1998)
Valve: Service and Repair
Valve Service
SERVICE RECONDITION
Valve Inspection
1. Clean valves thoroughly and discard burned, warped and cracked valves.
Valve Specification Chart
2. Measure valve stems for wear. Refer to Valve Dimension Chart.
CAUTION: Valve stems are chrome plated and should not be polished.
3. Remove carbon and varnish deposits from inside of valve guides with a reliable guide cleaner.
4. Measure valve stem guide clearance as follows:
a. Install valve into cylinder head so it is 14 mm (0.551 inch) off the valve seat. A small piece of hose may be used to hold valve in place.
Measuring Valve Guide Wear
b. Attach dial indicator Tool C-3339 to cylinder head and set it at right angle of valve stem being measured.
