CYLINDER HEAD AS 2768115 - Caterpillar

3208TA (01Z) Marine EngineDescription of Change: New aftercooler housings are being used in production on 3208TA Marine Engines rated 375 HP and 435 HP. Both housings incorporate a boost sensitive drain valve in the bottom of the housing that allows condensate to drain. The valve is normally open, but closes when boost reaches 2-3 PSI. The condensate drain was added to the turbocharged aftercooled engines, to eliminate the possibility of condensate entering stopped engines. This may be a problem, especially in cold water climates.
Adaptable To: First production of the TA Engines. The new 109-6857 Aftercooler Housing, for the 435 HP Engine, was effective in production with Engine S/N 01Z27024. The new 109-7278 Aftercooler Housing, for the 375 HP Engine, was effective in production with Engine S/N 01Z27337. Both housings use the same 108-1478 Drain Valve Group. A 5P-0767 Hose (bulk), clamped to the drain valve with one 5D-1026 Hose Clamp, is used to route the condensate to the bilge of the boat. The amount of condensate is minimal (about one cup drainage overnight, maximum)