Volkswagen Air Cooled 1949-1969 Repair Guide

Crankshaft Pulley



Type 1 and 2 Engines

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Fig. Fig. 1 Cut away view of the mounting of the crankshaft pulley

The crankshaft pulley can be removed while the engine is still in the car. However, in this instance it is necessary for the rear cover plate of the engine to be removed. Remove the cover plate after taking out the screws in the cover plate below the crankshaft pulley. Remove the fan belt, and crankshaft pulley securing screw. Using a puller tool, remove the crankshaft pulley. The crankshaft pulley should be checked for proper seating and for proper belt contact surface. The oil return thread should be cleaned and lubricated with a molybdenum-disulphide based oil. The crankshaft pulley should be installed in the reverse sequence, and should have no run-out.

Type 3 Engine

The crankshaft pulley can be removed only when the engine is out of the car and the muffler, generator, and cooling air intake housing are removed. After these parts have been removed, take out the plastic cap from the pulley. This can be done easily with a prytool. Remove the crankshaft pulley retaining bolt and remove the pulley.

Installation is the reverse of the foregoing but the following should be noted:

When installing use a new paper gasket between the fan and the crankshaft pulley. If shims are used, do not forget them. No more than two shims may be used.
When inserting the pulley, make sure that the pin engages the hole in the fan.
The crankshaft pulley retaining bolt should be tightened to a torque of 94-108 ft. lbs.
Ensure that the clearance between the generator belt and the intake housing is at least 0.16 in. (4mm) and that the belt is parallel to the housing.
Check the seal on the cooling air intake housing and if damaged, cement a new seal into place.