Checking the crankshaft (VW Golf 2)

Carefully inspect the crankshaft: are there any signs of damage, and then measure the diameters of the main and connecting rod journals. The journals have three repair sizes, which increases the service life of the crankshaft several times, provided that liners with repair sizes are installed.

Secure the crankshaft in the lathe centers (or extreme necks on prisms) and measure the shaft runout with an indicator. If the runout value is 0.06 mm or more, the shaft must be replaced or reground to fit repair liners.

Next, you should measure the clearance in the main and connecting rod bearings using the following method:, described here. When checking the connecting rod bearings, the connecting rod cap fastening nuts are tightened to a torque of 50 Nm - in the case of using connecting rod bolts of an old design; if the bolts are of a new design - with a torque of 30 Nm. Deformable bolts can be used to fasten the covers. The permissible clearance for the main bearing is 0.17 mm, and for the connecting rod bearing - 0.12 mm. Bearings with a clearance greater than specified above should be replaced, while it should be taken into account whether the shaft journals were previously ground.