OEM Dodge Sprinter 3500 Exhaust Valve

Dodge Sprinter 3500 Exhaust Valve Parts and Q&A

• Exhaust Valve
  68005657AA
  Q: How to Service and Repair Exhaust Valves and Intake Valves on Dodge Sprinter 3500?

  A:

  Before servicing or fixing the valve, first loosen the cylinder head from the engine cylinder block. Use the compressor to compress every valve spring and after that, remove the valve locks, retainers and springs. Use a smooth stone or jewelry file to put a polish on the burrs on the valve stem, especially at the lock area and remove all the valves at once, putting them in order in a valve rack. Remove all carbon buildup from the combustion chambers, valve ports, valve stems, valve stem guides and head and clean off all the residue and gasket material from the engine cylinder head machined gasket surface. Go over the combustion chambers, under the valve ports, at the exhaust seat and across the gasket area of every coolant passage, along with the valve heads and stems, replacing any components with cracks or damage. Measure the height of the valve springs. With valve seat refacing, fit a new pilot according to size in the valve guide, grind away the top of the valve seat while maintaining the right angle and tapered stones are needed when reaching the proper seat width. Check that the valve guides reach a height of 16.50 to 17.00 mm for Measurement A and 14.50 to 15.00 mm for Measurement B. Measure the internal diameter of the valve guides to have between 6.0 and 6.012 mm (0.2362 to 0.2366 in.) and check the valve stems have diameters of 5.952 to 5.97 mm for the intake and 5.942 to Compute the valve stem clearance (internal diameter of valve guide minus diameter of stem) to verify it is between 0.03 mm and 0.06 mm for inlet valves and no more .04 mm to 0.07 mm for exhaust valves; should it not, new valve guides are required.