Cummins 4BT – Piston and Connecting Rod – Disassembly

Remove the retaining rings.

Remove the piston pin.
Heating the piston is not required.

Piston Ring Expander Part No. 3823137
Remove the piston rings.

Cummins 4BT - Piston and Connecting Rod Assembly
There are a number of power related problems including excessive lubricating oil consumption, smoke, blowby…
Cummins 4BT - Piston and Connecting Rod Assemblies - Removal
Mark each connecting rod cap according to cylinder. Rotate the crankshaft until the pistons are…
Cummins 4BT - Operation and Description - Piston and Connecting Rod Assemblies
Piston features include: high swirl combustion bowl cast aluminum body and 3 ring grooves. The…
Cummins 4BT - Base Engine Components Specifications - Connecting Rod
• Pin Bore Diameter (Maximum) - Bushing Installed 40.019 MIN 1.5755 40.042 MAX 1.5765
Cummins 4BT - Push Rod - Installation
Install the push rods into the sockets of the valve tappets. Lubricate the push rod…

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