Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Inline Engine Water Pump Belt Adjustment with Idler

Cummins/Onan — Inline Engine Water Pump Belt Adjustment with Idler

A Cummins/Onan service procedure — check it applies to your exact model before use.

Browse Cummins/Onan generators & specs →

Before you start

  • Self tensioning idler on V-1710 requires no adjustment

Procedure

  1. Loosen capscrews and lockwashers or locknut securing idler pulley
  2. Use pry bar or adjusting screw to adjust idler pulley until proper belt tension is indicated on gauge
  3. Secure idler pulley in position by tightening locknut or capscrews and lockwashers to 45 to 55 ft-lbs torque

Tools required

  • Pry bar or adjusting screw
  • Belt tension gauge

Specs & torque values

  • Idler pulley torque: 45 to 55 ft-lbs

Source: manual:CUMMMINS_OPERATIONS_MAINTENANCE_1978.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.