Detroit Diesel — Remove Oil Cooler Core
Repair & overhaul · Power take-off oil cooler
From a Detroit Diesel service manual — check it applies to your exact model before use.
Procedure
- Drain the engine cooling system.
- Matchmark the end of the cooler core and cooler housing with a punch or file.
- Disconnect the two power take-off oil tubes from the elbows in the oil cooler core; tag the inlet and outlet tubes.
- Remove the bolts and lock washers securing the core to the oil cooler housing.
- Tap the edge of the core with a plastic hammer to loosen it.
- Remove the oil cooler core from the oil cooler housing.
- Remove the gasket from the oil cooler core or housing.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.