Cummins 4BT – Exhaust Manifold and Gaskets

Replacement
Preparatory Steps:
โ€ข Remove the air crossover tube, if used.
โ€ข Disconnect the charge air cooler hose (automotive engines only).
โ€ข Disconnect the air intake and exhaust piping.
โ€ข Remove the turbocharger, if used.

Removal
15 mm.
Remove the exhaust manifold and gaskets.

Cleaning and Inspection
Clean the sealing surfaces and inspect the exhaust manifold for cracks, burn-out, or damaged threads.

Installation
15 mm
Install the exhaust manifold and new gaskets.
Torque Value: 43 N*m [32 ft-lb]
Follow the tightening sequence shown in the illustration.

Install the parts previously removed. Operate the engine and check for leaks.