Sprinter 3500 V6-3.0L DSL Turbo VIN 45 (2007)
6. When assembling pistons check that components are installed in the same position as before disassembly, determined by the numbers stamped on
the crown of individual pistons. Engine cylinders are numbered starting from gear train end of the engine. Face arrow on top of piston toward
front of engine. Therefore, the numbers stamped on connecting rod big end should face toward the injection pump side of engine. To insert piston
into cylinder use a ring compressor.
INSTALLATION
NOTE: The connecting rods are not serviceable, and must be replaced every time the bolts are removed. Otherwise, the precision fit is no
longer achieved.
1. Before installing pistons, and connecting rod assemblies into the bore, be sure that compression ring gaps are staggered so that neither is in line
with oil ring rail gap.
2. Before installing the ring compressor, make sure the oil ring expander ends are butted together.
3. Immerse the piston head and rings in clean engine oil, slide the piston ring compressor, over the piston and tighten. Ensure position of rings does
not change during this operation.
4. Face arrow on piston towards front of engine.
CAUTION: Care must be taken to avoid touching the oil jet with the connecting rod during installation.
CAUTION: Care must be taken not to nick crankshaft journal when installing pistons.
5. Rotate crankshaft so that the connecting rod journal is on the center of the cylinder bore. Insert rod and piston into cylinder bore and guide rod
over the crankshaft journal.
6. Guide the piston down in cylinder bore, using a hammer handle. At the same time, guide connecting rod into position on connecting rod journal.
7. Use the torque table below to tighten the connecting rod bolts.
