|Tube shell Oil Cooler Engine oil coolers
||Check gaskets for leaks; test cooling system for oil contamination; test oil for contamination.
||Leaking gaskets; tube pack leaks; O-ring leaks; over heats.
||Vibration and electrolysis most common, age of o-rings and gaskets; loose bolts.
||Repair or replace tube pack; repair or replace o-rings and gaskets.
|Air to oil tube and fin construction
||Clean and straighten damaged fins.
||Lack of airflow through cooler; over heating; leaking.
||Plugged; vibration; age; stress
||Clean and repair or replace.