ENGINE DOES NOT DELIVER FULL POWER
Regularly occurring explosions indicate that the cylinders are receiving the proper quantity of mixture, and that the ignition is operating correctly. If under these conditions the engine fails to deliver full power, which is shown by the sluggish running of the car, the trouble may be identified as the result of a condition by which power is absorbed between the engine and wheels. This may be from a slipping clutch, binding brakes, or tight bearings, these more probably on the wheels than on the change-speed mechanism or drive.
The brake rods may get out of adjustment, or the spring stick, with the result that the bands or shoes are in continual contact with the drums. A simple test for the condition of the brakes is to push the car across the floor by hand; it is not difficult to recognize unusual stiffness. This test also applies to the wheel bearings. Engine or transmission bearings that are too tight will heat, and a touch of the hand will show the presence of this condition. A tight bearing should be permitted to cool before readjusting it and proceeding.