3363562 - 1028H54 PISTON WITH CONNECTING ROD - DISMANTLING AT THE BENCH

Removing ( Refitting ) 1. Remove the seals (1a) from the piston using the tool (1b).
DescriptionCode
1bExtractor/Fitting tool1.860.183.000
1. For the subsequent operation of extracting the gudgeon pin from the piston, the tool (1a) must be modified reducing the diameter (1b) of 1.3 mm as illustrated in the diagram.
DescriptionCode
1aSupport1.860.986.000
1. Position the connecting rod-piston assembly on the support (1a) then, using a hydraulic press and the tool modified previously, extract the gudgeon pin (1b) from the piston.
DescriptionCode
1aSupport1.860.986.000
Refitting ( Removing ) Heat the connecting rods in an oven to a temperature of around 240°C to allow the fitting of the gudgeon pin.1. Join the connecting rods to the pistons so that the gudgeon pin offset is facing the number stamped on the big end.
1. Fit the gudgeon pin (1a) using the fitting tool (1b) working in the vice with the connecting rod supported by the tool (1c).
DescriptionCode
1bSupport1.860.986.000
DescriptionCode
1cSupport1.860.986.000
1. Check the fitting of the gudgeon pin by securing the connecting rod-piston assembly (1a) in the support tool (1b) and positioning a dial gauge to measure the movement of the pin.2. Adjust the tool nut using a torque wrench set at a torque of 1.27 daNm equal to an axial load of 392.4 daN. The matching is correct if, when the action of the torque wrench is over and the nut is returned to its original simple contact position, the dial gauge pointer returns to zero. If this is not the case, replace the connecting rod.
DescriptionCode
1bSupport1.895.615.000
Fit the piston rings on the piston using the special tool.
DescriptionCode
-Extractor/Fitting tool1.860.183.000
All the seals are fitted with the word TOP upwards.
When the fitting is complete, position the references on the piston rings so that they are not aligned with the gudgeon pin axis and are offset 120° from one another.