OEM 2007 Jeep Wrangler Piston

2007 Jeep Wrangler Piston Parts and Q&A

• Q: How to Remove and Replace a Piston's Connecting Rod on 2007 Jeep Wrangler?

  A: To start, take the negative cable from the battery and then remove both the cylinder heads and the oil pan. If needed, fit a ridge reamer on the cylinder and use it to remove the top edge of the pistons' groove, making sure you cover the tops of the pistons. The pistons and connecting rods are removed from above the top of the cylinder block, while the crankshaft is turned to put each connecting rod in the center of its bore. Check the connecting rods and the caps on them to see which cylinder they belong to, then mark them with paint or a tool if that's helpful. Take off the connecting rod cap and put on connect rod bolt protectors or apply special tool #8189 to the broken connecting rod before moving it. Remove the piston with the connecting rod from the bore and be sure not to damage any journal on the crankshaft as you go. Once each assembly is out, install the bearing cap on its matching rod.