OEM Chrysler LHS Piston

Chrysler LHS Piston Parts and Q&A

• Piston
  R5010335AB
  Q: How to Properly Install and Remove a Piston in an Engine on Chrysler LHS?

  A:

  Remove the Oil Pan and the cylinder heads before you pull out the piston. With a trusted ridge reamer, take away the top ridge on each cylinder bore and make sure the top of the pistons are still covered. Take out the pistons and connecting rods from the cylinder block's top, while turning the Crankshaft so that every connecting rod is at the center of its bore. Check the connecting rods and caps to distinguish the cylinders; mark them if that is necessary. Pull off the cap on the connecting rod and install protectors onto the connecting rod bolts, then ease each piston and connecting rod together out of the cylinder honoring the crankshaft journals. Following the removal, fit the bearing cap back onto the mating rod. The first step in installation is to mount the piston rings and check the connecting rod bearing cap bolts for signs of necking; anybody that appears worn should be replaced. Use either a scale or a straight edge to check the threads of the connecting rod bolts; replace the bolts that don't touch the measuring device. Check that the gaps in the compression rings are not evenly spaced, so that both are distinct from the oil ring rail gap before setting up the pistons and connecting rod. Pour clean engine oil into the area with the piston head and rings, insert the ring compressor onto the piston and seal it until it's tight, taking care to maintain the ring arrangement. Put on connecting rod bolt protectors, turn the crankshaft to bring the connecting rod journal into the middle of the cylinder bore, then push in the piston and rod over the crankshart journal. Position the arrow on the piston toward the front of the engine and place the oil squirt hole on the connecting rod so it points where the cylinder exerts most force. Lightly press the piston into the cylinder bore with a hammer handle and move the connecting rod into the journal as you do so. Screw on the rod caps and fasten nuts to the bolts of your rods until they reach 54 Nm (40 ft. lbs.) and are turned an extra 1/4 turn. Next, fit in the cylinder head(s) and the oil pan again.