Assembly of the connecting rod and piston group (VW Golf 2)

If the pistons have been replaced, it is necessary to ensure that they are of the same type as the previous ones. Heat the piston to a temperature of 60°C (by immersing it in hot water) inspect the auxiliary rod that fits into the middle of the piston pin.

Insert the lubricated piston pin by hand into the heated piston and connecting rod upper head until it stops against the retaining ring. Figure 76 shows how to hold the piston while installing the piston pin.



When assembling the piston with the connecting rod, it is necessary to pay attention to the following:

The arrow on the piston bottom (painted or, if a new piston is installed, stamped) should point towards the front of the engine (see figure 64).

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Tides on the lower head and connecting rod cover (figure 66) must be on the same side (according to the marking during disassembly).

The cylinder number markings on the lower head and connecting rod cover must match.

Install the retaining rings that hold the pin from axial movement in the piston and make sure they are seated properly in the grooves.



Make sure that after assembly the piston can rotate on the connecting rod as shown in Figure 77.



Using piston ring pliers, insert the rings into the grooves - figure 69. Before installing the rings, pay attention to the shape of their cross-section, so as not to mix them up, moreover, both compression rings have the inscription "TOP" or "OBEN" stamped on one side, which in the installed ring should be facing up (towards the piston bottom).