JACKET WATER COOLING SYSTEM DRAWING FS 435 log. After the engine has been shut down, continued operating the circulating pump to remove heat in the engine mass. Continues operating circulating pump until temperature drops to 100°F. The following list of degreasing and cleaning solutions are suggested for cleaning the jacket water cooling system. This operation should be done on an annual basis or more often, depending on the care taken in supplying the cooling system with soft water. Two types of cleaners are suggested to flush the cooling system. The "A" cleaners are for removing scale. The "B® cleaners are for removing oils and greases and to neutralize acidity after using the "A" cleaners. nA" cleaners Mixing ratios Okite #32 1 part to 10 parts water Turco Descaler 1 8 e n " Magnus D-Rust—R 1 * non 8 i" Kelite E-15 1" ow of " "B" cleaners Mixing ratios Okite penetrant 3 02. per gallon water Turco prosolv 2o0z. * " " Magnus #240X 302. " " " Kelite E-10 5 oz. * « " n