Cummins 4BT – Cylinder Head – Assembly

NOTE: Clean all cylinder head components before assembling.
Install the valve stem seals.
The intake and exhaust seals are the same.

Valve Spring Compressor
Compress the valve spring after assembling the spring and retainer.

Install new valve collets and release the spring tension.

After assembly, hit the valve stems with a plastic hammer to make sure that the collets are seated.