TURBOCHARGER GP 4W4985 - Caterpillar

Note: Perform this procedure when the engine valve lash is inspected.
The Electronic Control module produces high voltage. To prevent personal injury make sure the Electronic Control Module is not powered and the unit injector solenoids are disconnected.
The camshafts must be correctly timed with the crankshaft before an adjustment of the lash for the fuel injector is made. The timing pins must be removed from the camshafts before the crankshaft is turned or damage to the cylinder block will be the result.
Inspect the adjustment of the lash for the fuel injector according to the Systems Operation/Testing And Adjusting, "Fuel System" topic. Adjust the lash for the fuel injector, if necessary.