Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Valve Clearance Adjustment

Perkins — Valve Clearance Adjustment

A Perkins service procedure — check it applies to your exact model before use.

Browse Perkins generators & specs →

Before you start

  • Disconnect the batteries and any other power that can start the engine.

Procedure

  1. Check the valve clearance.
  2. To set the valve clearance, loosen the lock nut (D1).
  3. Put the feeler gauge (D2) between the rocker and bridge piece.
  4. Turn the adjuster (D3) up or down to make the feeler gauge a slide fit.
  5. Tighten the lock nut (D1) to a torque of 50 Nm (35 lbf ft). Do not allow the adjuster screw (D3) to move.
  6. Check that the valve clearance is correct. Fit a new rocker cover joint (E3) and fit the rocker cover (E2).
  7. Fit the setscrews (E1) and torque to 4 Nm (2.9 lbf ft).

Tools required

  • feeler gauge

Specs & torque values

  • Inlet and exhaust valve clearance: 0.4 mm (0.016 in)
  • Lock nut torque: 50 Nm (35 lbf ft)
  • Setscrew torque: 4 Nm (2.9 lbf ft)

Source: manual:4006-23 series_TPCD1508-000-en.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.