Check the belt tension. When the belt is correctly tensioned it should be possible to depress the belt 10mm at point ‘C’ (centre between the two pulleys) by applying a 10Kg load. (firm push) If it is more than 10mm the belt could be slipping causing the dynamo or alternator not to work effectively. If it is too tight, that entire extra load is put onto the bearings, which will gradually ruin the bearings. To adjust the tension, proceed as follows: Remove the three 10mm nuts (D). Withdraw the outer pulley half. Note. If the belt has any wear or … Continue reading Checking and adjusting the Fan Drive Belt