John Deere — Install Turbocharger
Repair & overhaul · Air intake and exhaust system
From a John Deere service manual — check it applies to your exact model before use.
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Before you start
- DO NOT crank engine longer than 30 seconds at a time.
Procedure
- Install new turbocharger mounting gasket on exhaust manifold using guide studs.
- Install exhaust adapter onto exhaust elbow.
- Mount turbocharger on exhaust manifold. Apply PT569 NEVER-SEEZ and tighten to 24 N·m (18 lb-ft).
- Apply grease to O-rings and install on compressor housing outlet and intake coupling.
- Install intake coupling or carburetor with new gasket; tighten to 15 N·m (11 lb-ft).
- Install oil drain tube and oil inlet line.
- Install exhaust adapter V-band clamp; tighten to 20 N·m (15 lb-ft).
- Install air intake hose and tighten clamps.
- Connect coolant inlet and outlet lines.
- Crank engine over without starting for several seconds to allow oil to reach turbocharger bearings.
- Start and run engine at low idle while checking oil inlet and air piping connections for leaks.
Tools required
- Torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Turbocharger-to-exhaust manifold 24 N·m (18 lb-ft)
- Intake coupling/carburetor 15 N·m (11 lb-ft)
- V-band clamp 20 N·m (15 lb-ft)
Source: John Deere 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.