Kohler — Install Cylinder Heads (Secured With Mounting Studs, Nuts, and Washers)
Installation
From a Kohler service manual covering: CV682, CV732, CV742, CV752. Check it applies to your exact model before use.
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Procedure
- Check for nicks or burrs on sealing surfaces.
- If studs were disturbed or removed, install new mounting studs into crankcase using locked nuts and steady tightening motion.
- Studs closest to lifters must have exposed height of 75 mm (2 15/16 in.); studs furthest from lifters 68 mm (2 3/4 in.).
- Check dowel pins and install a new cylinder head gasket (printing up).
- Install cylinder head matching numbers on head and crankcase.
- Lightly lubricate exposed threads of studs with engine oil; install new flat washer and nut on each stud.
- Torque nuts in two stages; first to 16.9 N·m (150 in. lb.), then finally to 35.5 N·m (315 in. lb.), following sequence shown.
Tools required
- torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Stud heights: 75 mm (2 15/16 in.) and 68 mm (2 3/4 in.)
- First stage 16.9 N·m (150 in. lb.); final 35.5 N·m (315 in. lb.)
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.