Winch Service: What We Check and Why Intervals Matter on the Bay

A winch that free-spins under load or fails to self-tail reliably is not just frustrating — it's a safety issue in a tack when you're carrying 28 knots through the gate. Winch service is one of those maintenance items that doesn't announce itself with a dramatic failure until the most inconvenient moment.

What we check when a winch comes in: full disassembly first. Every pawl and pawl spring removed and inspected. Pawl springs are small, simple parts that fail by fatigue — they don't look broken until they are, and when they go, the winch loses its self-tailing ability or its load-holding ability depending on which spring fails. We replace any spring that shows deformation or corrosion regardless of whether it has failed yet. Springs are cheap; a dropped halyard in a seaway is not.

Bearings: we inspect every bearing race for pitting, corrosion, and roughness. A winch that feels lumpy to spin is telling you something about its bearings. We carry Lewmar, Harken, and Andersen parts; most common bearing replacements are off-the-shelf.

Grease: we degrease all components before reassembly, inspect the drum for corrosion or stress cracks (uncommon but not unheard of on heavily used racing winches), and regrease with the manufacturer-specified lubricant. Do not use a heavy automotive grease in a sailing winch — it attracts grit, stiffens in cold temperatures, and accelerates wear.

Bay Area intervals: we recommend a full service on primary sheet and halyard winches every 2–3 years for actively raced boats, every 3–4 years for boats used primarily for cruising. The salt air and damp conditions at a marina accelerate corrosion inside the drum — by the time you can see external corrosion, the internal parts are already compromised.

Bring your winches to the shop or we can service them on the boat. For a racing program, scheduling service in the fall after the season ends means you come out in spring with everything rebuilt and ready.