From August 1968
Saab V4 Lubrication of clutch release fork shaft
It has proved that the clutch release fork shaft, which is carried on a bearing in the clutch cover, shows a tendency for labouring in its upper bearing or even getting stuck – due to corrosion. The result may be a slipping/damaged clutch.
When working on the clutch or visiting a service garage, add a few drops of oil. At every 6,000 miles (10,000km) service inspection, lubricate the bearing with a few drops of oil. The end surface of the shaft lies somewhat lower than the surface of the clutch case, and in consequence the oil will remain in place until the bearing has been lubricated.