Cooling System - Flushing Information
87subaru03NUMBER: 10-48-87
DATE: 11-30-87
APPLICABILITY ALL SUBARU MODELS
SUBJECT: COOLING SYSTEM CLEANSING
THIS BULLETIN IS FOR INFORMATION ONLY
FIGURE 1:
FOUR CYLINDER:
THREE CYLINDER:
Whenever the Cooling System is being cleaned or flushed using a solvent, the Engine Coolant Passage Drain Plugs must be removed. On Justy Models the Radiator Outlet Hose must be disconnected from the Radiator. Clean water must be circulated through the system to ensure all cleansing agent chemicals are removed. Reinstall each Drain Plug using a new gasket. On Justy Models reconnect the outlet Hose. Refill the Cooling System with fresh, clean antifreeze according to the Cooling System section of the applicable Subaru Service Manual. See figure 1.
NOTE: Failure to properly remove all cooling system cleansing agents may result in cooling system damage.