Thermal-Cleaning

With many of the Hydramatic transmissions taken in the parts are varnished, contaminated with fine metal particles, and may be difficult to clean without special cleaning equipment.  Some transmissions have sat in a barn, field or salvage yard for decades and these can look to be in very poor condition.  Some owners think that these units cannot be brought back to life - but I disagree! 

Hot Bath Thermal-Cleaning, the cleaning process I use on all transmissions, is different than cleaning an engine block in a furnace or using a Safety-Clean tank.  With an engine, the block and heads are heated in a flame-oven to burn off debris.  With a transmission, which contains aluminum, brass, stainless, and other soft metals, the cleaning process should NEVER be harmful to the components.  Classic Hydramatic cleans parts in a special high-temperature high-PH detergent water jet bath that deep cleans the parts but does not harm soft metals.  I remove all 7/16 pipe plugs to ensure that all the internal passages are clean.  From the thermal washer the parts are hand rinsed and inspected to ensure that your Hydramatic parts are fully clean and in good condition.  Case parts are inspected, sensitive components such as valve bodies and governors that contain valves are hand cleaned in solvent and inspected, then lubricated.  A final inspection is performed and the parts list is developed and sent to the parts supplier for quote.