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 - Base Engine Components Specifications - Tappets
• Stem Diameter (Minimum at 28 mm height) 15.925 mm [0.627 in]
Cummins 4BT - Base Engine Components Specifications - Camshaft
• Journal Diameter (Minimum) 53.962 mm [2.1245 in] • Valve Lobes (Min. Dia. at Peak…
Cummins 4BT - Base Engine Components Specifications - Pistons
• Skirt Diameter 101.823 mm MIN [4.0088 in] 101.887 mm MAX [4.0107 in] • Pin…
Cummins 4BT - Piston and Connecting Rod Assembly
There are a number of power related problems including excessive lubricating oil consumption, smoke, blowby…
Cummins 4BT - Base Engine Components Specifications - Valve Train
Valve Clearance • Intake …

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