Pistons, Rods and Cylinder Block IMPORTANT: Do not touch bearing insert surfaces. Oil and acid from your finger will corrode the bearing surface. Disassembly IMPORTANT: Pistons must be installed on the same connecting rod they were removed from. 3. Install bearing inserts on connecting rod and rod cap, aligning tangs with grooves. Put a mark on each piston and connecting rod to aid in assembly. IMPORTANT: Connecting rod caps must be installed on the same connecting rods they were removed from. Piston pin bushing is press fit in connecting rod. Remove bushing only if replacement is necessary. (See Inspection/Replacement procedures.) 1 4.
Match the connecting rods to caps using alignment marks. Install caps. Inspect all parts for wear or damage. Replace as necessary. (See Inspection/Replacement procedures.) 5. Dip entire connecting rod cap screws in clean engine oil. Install new cap screws and tighten to 23 N•m (203 lb-in.) . 6. If a new piston and connecting rod were installed, stamp a number corresponding to the cylinder number on the connecting rod cap and connecting rod. 7. Install cylinder head. (See Cylinder Head, Valves and Manifolds in this section.) 8. Install oil pan and strainer tube.
(See Lubrication System in this section.) 1-34 4/7/95 AllTractorManuals.com 1st Compres 2nd Compres Oil Ring w Coil Expan Piston Piston Pi Piston Pin Bushing Connecting Rod sion Ring sion Ring ith der n Piston Pi n Retaining Ring M82274A 1st Compres sion Ring 2nd Compres sion Ring Groove Tangs Co Ca Ma Groove Connec Cap Sc Piston Recess Fuel Injection Pump Side Flywheel Side nnecting Rod p Alignment rk ting Rod rew M82273A M82273A Oil Ring w Coil Expan ith der Co Ca Ma nnecting Rod p Alignment rk Connec Cap Sc ting Rod rew