Pistons, Rods and Cylinder Block PISTON AND CONNECTING ROD Removal 1. Remove oil pan and strainer tube. (See Lubrication System in this section.) 2. Remove cylinder head. (See Cylinder Head, Valves and Manifolds in this section.) 3. Check cylinder bore for ridges. These ridges can cause damage to piston if ridge is not removed. 1 4. If necessary, remove ridge from top of cylinder bore using a ridge reamer. 5. Measure connecting rod side play. (See Checks, Tests and Adjustments in this section.) 6. Measure connecting rod bearing clearance. (See Checks, Tests and Adjustments in this section.) IMPORTANT: Keep connecting rods and caps together. Rods and caps are a matched set.
Note alignment marks on each part. 7. Remove two cap screws, connecting rod cap and bearing inserts. IMPORTANT: Pistons and cylinders are matched. Pistons must be installed in the cylinders from which they are removed. 8. Note connecting rod alignment mark in relation to the cylinders. Starting at flywheel end with cylinder number one, then two, etc. Installation Apply clean engine oil on all parts during installation. 9. Push piston and connecting rod out of cylinder bore using a wooden dowl. 10.Disassemble and inspect all parts for wear or damage. (See Disassembly and Inspection/ Replacement procedures.) Never reuse connecting rod cap screws, replace with new. IMPORTANT:
Pistons must be installed in cylinders from which they were removed and in the same direction. Be careful not to damage crankshaft rod journal while installing piston. 1. If new piston rings were installed, deglaze cylinder bore. (See procedure in this group.) 2. Install piston and connecting rod into the cylinder from which it was removed, with piston recess on top of piston toward fuel injection pump. 4/7/95 1-33 AllTractorManuals.com od M82 Piston and Connecting Rod Bearing Inserts Connecting Rod Cap Connecting R Cap Screw Replace. M82 273A Connecting R Cap Screw Replace. od