OEM Jeep Liberty Intake Valve

Jeep Liberty Intake Valve Parts and Q&A

• Valves
  5066770AA
  Q: How to Service and Repair Exhaust Valve and Intake Valves on Jeep Liberty?

  A:

  Before you can service or repair the valves and seats in both the intake and exhaust, you have to remove the cylinder heads. To start, remove the Rocker Arms and Lash Adjusters, then the Camshaft bearing caps and lastly the camshaft. To compress the valve spring, install Special Tool 8519 in C-3422-B or C-3422-C and try tapping the spring on top if the retainer locks are tight. Be sure to skillfully take out the spring retainer lock halves because the valve spring is under tension while you release the compressor. After that, lift out the spring retainer and the spring, check the keeper grooves for sharp edges and file away any burrs on the valve stem. Take out the valve stem seal and mark the valve where it will go. When removing the valves, it's important to look over the valve springs before trying to use them again. Watch for damage or signs of wear and with tool C-647 find the spring load at the right length. For any spring that does not match specifications, replace it. For assembly, rub the valve stem with clean engine oil and fit it into the cylinder head so that the seal can be set with the intact garter spring. After you put in the spring and spring retainer, use the valve spring compressor to squeeze the compression forming the spring," making sure the retainer halves stay in place. Remove your grip from the compressor and make certain the spring retainer and its halves are on fully. Apply engine oil to the camshaft journal, set the camshaft so that the sprocket dowel on the left cam is at 11 o'clock and the right at 12 o'clock and then add the camshaft bearing caps. Put in each camshaft bearing cap retaining bolt, tighten it to 9 - 13 Nm (100 inch lbs.) by turning 1/2 turn after putting in the other bolts. After everything is done, install the hydraulic lash adjusters and rocker arms.
• Intake Valve
  53020747AB
  Q: How to Remove and Replace Exhaust Valve and Intake Valves on Jeep Liberty?

  A:

  Removing and replacing the valve starts with pulling the cylinder heads off. First, get rid of the Rocker Arms and Lash Adjusters, then move on to the removal of the caps of the Camshaft bearing and the camshaft itself. With C-3422-B or C-3422-C and Adapter 8519, compress the valve spring before tapping the spring's top to take off the locks. Lift out the two halves of the spring retainer lock with attention, remembering that the valve spring will be under tension when you remove it. Then, lose the spring retainer and spring and check if the keeper hole endings have any sharp corners. If so, fling them off and take out the valve from inside the cylinder head. The design of the valve stem seals is the same on both the intake and exhaust sides, so remove the seal and mark the valve. Be sure to examine and test the valve springs as soon as you take out the valves, since they can be useful again. Lift the valve cover to check the springs and use tool C-647 to line up the tone device surface with the 40.12 mm (1.579 in.) mark on the threaded stud and the zero mark on the front. Sit the spring on top of the stud and press the leverage arm upwards, then pull the torque wrench firmly until you hear it ping, writing down the reading then. Gain the spring load by doubling the reading at test length and keep making fine adjustments using the fractional measurements on the table. Use what's in the Specifications to choose the right spring, replacing those that do not meet the set height and tensional requirements.