Overheating and Thermal Gear Deformation
WARNING: This page is about a different car, the 2002 Ford Pickup, 2002 Ford F550 Super Duty, and 2002 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- The term describes a gray to blue black discoloration of the gear. Overheating reduces the surface hardness, allowing scoring or grooving to the flank, in the direction of sliding, particularly in the tip and the root zones. If there is extreme overheating, the material softens, causing gear tooth distortion.