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Known Issues

Ericson 39 Known Issues

Common problems, survey red flags, and what to inspect before buying a Ericson 39.

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These are the most commonly reported problems on the Ericson 39, compiled from surveys, owner reports, and marine forums. Use this list as a pre-purchase inspection checklist — especially the high-severity items.

10
Known Issues
5 High 5 Medium
Accommodations
Medium
The teak and holly cabin sole is often delaminated or soft in areas over the bilge sump due to decades of moisture exposure. Soft spots underfoot can indicate structural concerns with the underlying fiberglass pan, not just cosmetic sole damage.
Electrical
Medium
Original wiring from 1970s production is now 45–50 years old and commonly shows brittle insulation, undersized conductors, and non-tinned copper wiring throughout. Panel and wiring upgrades should be considered a near-certainty requirement on boats that have not been rewired.
Engine
Medium
Many early Ericson 39s were fitted with the Universal Atomic 4 gasoline engine. These engines are aged well beyond their service life and present fuel system and ignition reliability concerns; confirm whether the original engine is still fitted or has been replaced with a diesel, as diesel conversions are common and vary widely in quality.
1970–1976 models
Medium
The engine compartment on the Ericson 39 has limited access, making routine maintenance on both original gasoline and retrofit diesel installations difficult. Inspect for evidence of overheating, exhaust manifold corrosion, and raw water cooling system deterioration, which are frequently neglected due to poor access.
Hull/Deck
Medium
The deck-to-hull joint on early Ericson 39s uses an outward-turning flange secured with through-bolts and sealant. This joint is prone to weeping and separation, particularly at the bow and stern quarters, leading to water intrusion into the balsa-cored deck sections.
1970–1975 models
High
Balsa core was used extensively in the deck construction. Areas around chainplates, stanchion bases, and deck hardware frequently show core rot due to fastener holes that were not properly sealed at the factory, allowing water migration over decades.
High
The chainplate backing plates are glassed into a relatively thin area of the deck structure. Chainplate leaks are extremely common and often go unaddressed for years, resulting in significant balsa core saturation and delamination around the shroud attachment points.
Keel
High
The cast iron fin keel is attached with mild steel keel bolts that are prone to corrosion. The keel-to-hull joint often shows weeping rust staining, and the bolts should be carefully inspected or replaced as they can lose significant cross-section without visible external evidence.
High
The keel sump area in the bilge tends to trap water against the keel bolt nuts, accelerating corrosion of the nuts and washers. Many boats of this vintage have never had the keel bolts retorqued or inspected, and interior fiberglass tabbing around the sump can hide advanced deterioration.
Rigging
High
The chainplates on the Ericson 39 are internal, glassed-in plates that pass through the deck. The through-deck portion is a known chronic leak point, and the plates themselves can develop crevice corrosion at the point where they exit the deck, which is often hidden by interior trim and difficult to inspect without disassembly.
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