Kohler — Remove Impeller
Repair & overhaul
From a Kohler service manual covering: WA 2.0, WA 3.0, WB 2.0, WB 3.0. Check it applies to your exact model before use.
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Before you start
- Impeller is heavy.
Procedure
- Using a rubber mallet, tap 1 blade counterclockwise to loosen impeller.
- Turn impeller counterclockwise by hand until free from crankshaft.
- Inspect impeller for cracks and bent blades.
- Count and remove shim(s) on crankshaft; replace same number when reassembling.
- Pry stuck shims from impeller with a screwdriver; inspect, replace if bent or distorted.
- Turn impeller over and remove rotating seal with a small screwdriver, prying upward.
- Colored marks on rotating seal will face inward (towards inlet nozzle side of pump).
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.