Kohler — Valve Clearance Adjustment
Adjustments · valve mechanism
From a Kohler service manual covering: 10CC, 7CCFO, 7CCO. Check it applies to your exact model before use.
Applies to: Kubota D905BG-2 engine, Kubota V1305BG-2 engine
Before you start
- Flying projectiles. Rotate crankshaft clockwise only; do not loosen rotor thru-bolt.
Procedure
- Remove rocker arm cover screws and breather hose.
- Remove rocker arm cover; wipe excess oil from components.
- Rotate engine until No. 1 piston is at Top Dead Center.
- Insert feeler gauge between rocker arm and exhaust valve.
- Loosen locknut; move adjusting screw so slight drag is felt.
- Tighten locknut; recheck clearance.
- Repeat for each additional cylinder.
- Install rocker arm cover with gasket properly seated.
Tools required
- feeler gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake/exhaust valve clearance 0.006-0.007 in. (0.145-0.185 mm) cold
Full service-parts list: Kubota D905BG-2 engine →, Kubota V1305BG-2 engine →
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.