Cummins/Onan CK-216E — Valve Adjustment
Adjustments · Valves
For the Cummins/Onan CK-216E, from the Cummins/Onan service manual.
Browse Cummins/Onan generators & specs →
Procedure
- Remove valve covers.
- Crank engine until left hand intake valve opens and closes, then 1/4 turn until TC mark aligns.
- Use 0.004 and 0.006 inch feeler gauges for intake; 0.006 and 0.008 for exhaust.
- Turn adjusting screw to obtain correct clearance.
- Crank engine one revolution to adjust right hand cylinder.
Tools required
- feeler gauges Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake 0.004-0.006 in at 72°F
- Exhaust 0.006-0.008 in at 72°F
Source: Cummins/Onan service 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.