Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_71245 ( "Year" real, "Entrant" text, "Chassis" text, "Engine" text, "Points" real )

### Question ###
Name the engine for years before 1990 and chassis of eurobrun er189

### Accurate SQL ###

SELECT "Engine" FROM table_71245 WHERE "Year" < '1990' AND "Chassis" = 'eurobrun er189'