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Known Issues

Pearson 323 Known Issues

Common problems, survey red flags, and what to inspect before buying a Pearson 323.

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These are the most commonly reported problems on the Pearson 323, 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
4 High 6 Medium
Accommodations
Medium
The molded fiberglass liner system used by Pearson in the 323 traps moisture between the liner and the hull, leading to hidden fiberglass degradation and mold growth that is very difficult to detect or remediate without partial liner removal.
Electrical
Medium
Original wiring on surviving 323s is now 40–47 years old; Pearson's factory wiring used undersized conductors by modern standards and non-tinned copper that is prone to corrosion and brittleness. A full rewire is advisable on boats that have not been updated.
Engine
Medium
Many early 323s were fitted with the Universal Atomic 4 gasoline engine. These engines are aged and parts availability is limited; the carburetor, fuel pump, and raw water cooling system are common failure points. Confirm engine type and verify whether conversion to diesel has been done.
1976–1980 models
Hull/Deck
Medium
The deck-to-hull joint on the Pearson 323 uses an inward-turned flange bolted and bedded with a sealant that dries out and cracks over time. Water intrusion at this joint is a chronic problem and can lead to delamination and core saturation in the toerail area.
High
Pearson used balsa core extensively in the deck of the 323. The area around chainplates, stanchion bases, and deck hardware is highly prone to core rot from fastener penetrations that were poorly bedded at the factory or have lost their seal over decades.
High
The chainplate attachment points pass through the deck and are prone to leaking, which saturates the balsa core and can compromise the structural integrity of the chainplate knees below deck. These should be removed, inspected, and rebedded during any purchase survey.
Medium
The skeg supporting the rudder is solid fiberglass but the skeg-to-hull junction can develop stress cracks and separation after years of rudder loading. Inspect the skeg root carefully for cracking or soft spots indicating delamination.
Keel
High
The 323 carries an external lead keel attached with stainless steel keel bolts that are known to corrode at the keel-to-hull interface. Weeping rust stains in the bilge at the keel sump area indicate bolt corrosion that may be well advanced before it is visible.
Medium
The keel-to-hull joint on many 323s shows cracking and separation of the fairing compound used at the factory. This is common and should be carefully distinguished from structural movement; probe the joint to check for actual hull-to-keel separation.
Rigging
High
The chainplates on the 323 are internal, glassed to the hull liner, and difficult to inspect without removing interior joinery. Stress cracking in the liner or gelcoat near the shroud attachment points can indicate chainplate movement or failure.
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