Inspection of Pistons and Connecting Rods for 300Tdi Engine Overhaul
ENGINE
OVERHAUL
67
Pistons - remove
1. Suitably identify each piston to its connecting
rod, note position of bearing shell tag recess in
connecting rod relative to arrow on piston
crown.
2. Remove and discard circlips retaining gudgeon
pin.
3. Push gudgeon pin out of piston, remove
connecting rod. Retain gudgeon pins and
connecting rods with their respective pistons.
Pistons and connecting rods - inspection
1. Remove carbon from piston using fine emery
cloth soaked in oil.
2. Measure and record piston diameter at right
angles to gudgeon pin hole mid-way between
hole and bottom of skirt.
Piston diameter:
Standard = 90.395 mm
1st oversize = 90.649 mm
2nd oversize = 90.903 mm