OEM Dodge Intrepid Intake Valve

Dodge Intrepid Intake Valve Parts and Q&A

• Intake Valve
  4663836
  Q: How to Service and Repair Exhaust Valve and Intake Valves on Dodge Intrepid?

  A:

  To begin, first take out both the cylinder head(s) and the valve spring. Make sure any burrs are removed from the lock grooves in the valve stems before you pull out the valves, to prevent damage to the guides. Before you take out each valve, recognize it to make sure you put it back where it belonged originally. Before installing, cover the valve stems with clean engine oil and insert them into the cylinder head. If the valve seats or valves have been reground, never allow the inlet (intake) valve to exceed 47.59 mm (1.8737 inches) and the outlet (exhaust) valve to exceed 49.14 mm (1.9347 inches). Should either valve tip exceed the standards, lower the tip height by grinding the valve until it fits the measurements, measured from the head surface to the valve top. After that, fit the valve spring.
• Valves
  4663899
  Q: How Are Exhaust Valves and Intake Valves Refaced Along with Their Seats on Dodge Intrepid?

  A:

  Face angles for intake and exhaust valves are 44.5 to 45 degrees and the valve seats are 45 to 45.5 degrees. After improving the valves, analyze the rest of the surface. When you are refacing valve seats, make certain you use the right size valve guide pilot to create a proper valve seat. Using a dial indicator, determine that the valve seat concentricity does not have more than 0.051 mm (0.002 in.) of total runout. Coat the valve seat with Prussian blue and place the valve carefully inside, turning it slightly; if the center of the valve comes in contact, the blue will transfer there. Move the valve seat up by 15 degrees with a stone if you mark on the top and down 65 degrees with a stone if on the bottom. Valve seats that are worn or burned can be repeated provided the equipment angle and seat width are correct, otherwise, the cylinder head requires replacement. For properly seated cylinders, the piston is positioned to have an intake width of 1.00 to 1.50 mm (0.0394 to 0.0591 in.) and exhaust width of 1.25 to 1.75 mm (0.049 to 0.069 in.). Once the valve and seat have been refaced, it's important to measure the height of the valve spring.