Kohler — Draining Cooling System
Maintenance
From a Kohler service manual covering: AEGIS 17, AEGIS 20, AEGIS 23, LV560, LV625, LV675. Check it applies to your exact model before use.
Browse Kohler generators & specs →
Before you start
- Do not remove plugs when engine is hot.
Procedure
- Stop engine and let cool sufficiently.
- Remove upper blower housing and screen assembly.
- When cool, slowly remove radiator cap.
- Remove coolant drain plug in lower side of both cylinder heads; drain coolant.
- Apply pipe sealant with Teflon to threads; reinstall plugs; torque to 13.5 N·m (120 in. lb.).
- Loosen two screws holding overflow reservoir retainer bracket.
- Remove reservoir cap, lift bracket, remove reservoir; drain and clean.
- Reinstall reservoir; torque bracket screws to 7.3 N·m (65 in. lb.); reinstall cap.
- Flush cooling system.
Specs & values
- Use brass (soft) plugs Kohler Part No. 66 139 01-S on service.
Source: Kohler 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.