Lycoming Service Instructions 554. 1458C, 1059D, and others, call for the use of Loctite Food Grade Anti-seize, part number 51168. This is very important to ensure that proper torque values are met when installing engine connecting rod stretch bolts. This product is also commonly known as Fel-Pro or Felpro anti-seize.
LOCTITE Food Grade Anti-Seize prevents seizing, galling, friction, and wear on threaded joints and other metal-to-metal surfaces. It is a combination of white lubricating solids and extreme pressure lubricating agents in an aluminum gelled white oil. Typical applications include pipe joints, nuts, bolts and studs, flange gaskets, slip-fit, press-fit and keyed shafts, and metal-to-metal contact involving stainless steel and other stainless alloys. It is used in industrial food industries such as meat and poultry packing plants, dairy products processing plants, canning plants, grain processing plants, sugar processing plants, bakeries, beverage plants, breweries, hospitals, and other general plant maintenance. This product is typically used in applications with an operating range of -29°C to +400°C.