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Caterpillar 3126B / 3126B Industrial Engine — Engine Valve Lash - Inspect/Adjust

Adjustments · Valve train

For the Caterpillar 3126B / 3126B Industrial Engine, from the Caterpillar owner's manual.

Applies to: Caterpillar 3126B, Caterpillar 3126B Industrial Engine engine

Before you start

  • Only qualified service personnel should perform this maintenance.
  • Do not use the starting motor to turn the flywheel.
  • Hot engine components can cause burns.

Procedure

  1. Ensure that the engine can not be started while this maintenance is being performed.
  2. Allow the engine to cool before measuring/adjusting valve lash clearance.
  3. Ensure the engine is stopped before measuring the valve lash.
  4. Refer to the Service Manual for the complete valve lash adjustment procedure.

Specs & values

  • Valve Lash (inlet) 0.38 mm (0.015 inch)
  • Valve Lash (exhaust) 0.64 mm (0.025 inch)

Full service-parts list: Caterpillar 3126B →, Caterpillar 3126B Industrial Engine engine →

Source: Caterpillar owner's 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.

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