Monk 36 Trawler
About the Monk 36 Trawler
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Builder
- Taiwan-built to about 1991, then Nova Scotia
- Length
- 36 ft
- Waterline
- 33 ft
- Beam
- 13 ft
- Draft
- 4 ft
- Displacement
- 18,000 lb
- Hull
- fiberglass
- Hull / keel
- semi-displacement
- Propulsion
- inboard
- Fuel
- 320 gal
- Water
- 120 gal
- Holding
- 45 gal
Sources disagree on first year, last year, number built — left blank rather than guessed.
Solid fiberglass aft-cabin trawler with skeg-protected prop. Early Taiwan boats have lots of exterior teak (decks, window frames, hatches); Nova Scotia boats have teak handrails only. Post-1992 boats dropped the aft-head tub and moved the master berth off the hull side. Built in Taiwan from the early 1980s, then in Nova Scotia from the early 1990s until about 2007-08; over 250 built. Taiwan-era engines were mostly 135 hp Perkins or 150 hp Cummins, with many other options including Lehmans and a dozen-plus twins; later boats had a 220 hp Cummins (9-10 knots). Designer credit (Ed Monk) and any Hatteras or McQueen builder connection were not confirmed by the sources read.
Known problems for this model
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Rusted steel fuel tanks fuel
Rusted or corroded original fuel tanks are the most frequently reported problem on Monk 36s; check tank condition and replacement history.trawlerforum.com
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Spongy aft deck and window leaks deck
Owners report soft aft decks from water intrusion and leaking windows, especially on Taiwan-built boats with teak decks and window frames.trawlerforum.com · hmy.com
Engines & parts
Ford Lehman 120 (6D380 / 2715E) parts: good
Factory standard engine — you entered “Ford Lehman 120 / 135”
Marinized by Lehman from the Ford of England 'Dorset' 2715E six-cylinder (380 cu in) industrial/truck diesel; Ford built the Dorset base engines 1964–1984. Base-engine internals interchange with the Ford 2715E, and marine-specific parts (raw water pumps, heat exchangers, injection elbows, gaskets, lift pumps, air filters) are widely stocked. American Diesel Corp (founded by former Lehman people) still sells parts, publishes spare-parts lists and gives technical advice. Rebuilt and used 120s are also sold by salvage yards.
Parts sources: American Diesel Corp, Go2marine (Ford Lehman parts collection), Fred Warner Marine & Outdoors
Common problems (2)
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Chronic oil leaks engine
Most 120s weep oil somewhere; owners often trace it to the rear of the engine near the heat exchanger (head/head gasket area) or to the drive seals of the gear-driven injection pump. Moderate oil use is treated as normal on these engines.trawlerforum.com · marineengine.com
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Fuel leaks at injection pump, lift pump and return lines fuel
Slow diesel drips usually come from loose bleed screws or banjo washers, perished rubber injector return hoses, a failing lift-pump diaphragm, or worn internal seals in the Simms or CAV injection pump, which needs a pump shop to overhaul.yescenters.com
Model sources (3)
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.