Ocean Yachts 44 Super Sport
Built 1985–1991 by Ocean Yachts
Is she right for you? Take the quiz
Own one? Start her custom manual
Looking at one? Sea-trial scorecard
About the Ocean Yachts 44 Super Sport
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1985–1991
- Builder
- Ocean Yachts
- Length
- 44 ft
- Beam
- 15.17 ft
- Draft
- 3.5 ft
- Displacement
- 36,000 lb
- Hull / keel
- planing
- Propulsion
- inboard
- Fuel
- 480 gal
- Water
- 100 gal
- Number built
- 111
- Bow thruster
- not fitted
- Stern thruster
- not fitted
Tank capacities — where the figures come from
-
Fuel 480 gal
“Fuel Tank Capacity: 480 gal” — search excerpt (1989 (one listing)), newjerseyyachtsales.comOne broker listing agrees with our earlier figure; no builder source was found.
-
Water 100 gal
“Water Tank Capacity: 100 gal” — search excerpt (1989 (one listing)), newjerseyyachtsales.comOne listing agrees; no builder source.
-
Holding unknown
“Holding Tank Capacity: 60 gal” — search excerpt (1989 (one listing)), newjerseyyachtsales.comOne listing only.
-
Water heater unknown
The PowerBoat Guide text doesn't mention a water heater; no other source was found.
Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.
Thrusters and steering — where this comes from
-
Bow thruster not fitted
Our earlier figure of none has no source, and nothing was found either way.
-
Stern thruster not fitted
Our earlier figure of none has no source, and nothing was found either way.
-
Steering unknown
No builder, review or owners' source on steering found.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
Sources disagree on hp (6-71TI) — left blank rather than guessed.
Built on a shortened 46 Super Sport hull; 111 built. Good engine access for an Ocean of this era. Standard engine not named on the page read. Hull material recorded as fiberglass; coring not stated in source.
Engines fitted
-
Detroit Diesel 6-71TI (6-71TIB) — 485 hp, diesel, twin
factory option
HMY: optional 485 hp GM 6-71 diesels cruise around 27 kn (30+ top). YachtForums posters describe 1980s Ocean Super Sports (44/46/48) with 485 hp 6-71TIB power, including a sea-trial 44 with fresh 6-71s. A 1987 owner reports twin Covington-marinized 6-71TI diesels rated 450 hp.Sources: hmy.com · yachtforums.com · yachtforums.com
Generator
Only one listing names a set (a new 9.5 kW, make not given, on a 1989 boat, repeated across several brokers). No builder document or review statement found.
Known problems for this model
-
Harsh ride in a chop hull
Nearly flat bottom (1.5 deg deadrise) and narrow aftersections make her fast but pound in a head sea.hmy.com
-
Teak cockpit sole and covering boards deck
Teak cockpit sole and covering boards were standard and need upkeep at this age.hmy.com
Engines & parts
Detroit Diesel 6-71 (inline, N / T / TI) parts: good
Factory optional engine — you entered “Detroit Diesel 6-71TI (6-71TIB)”
Two-stroke 71-series engine with a huge commercial, bus and marine population; basic engine parts and complete overhaul kits (liners, pistons, injectors, blowers, bearings, gaskets) are cheap and widely available from Diesel Pro Power, Highway and Heavy Parts and others. Some marine-specific parts (coolers, manifolds) are harder to find. Designed to be rebuilt in-frame repeatedly; naturally aspirated engines with good care have been reported past 15,000 hours, turbo versions more like 3,000–5,000.
Parts sources: Diesel Pro Power (Detroit Diesel parts), Highway and Heavy Parts (Series 71)
Common problems (2)
-
Oil leaks engine
Owners describe 71-series Detroits as habitual oil leakers; chasing leaks with the right gaskets and sealants is a routine topic even on freshly rebuilt engines.trawlerforum.com · cruisersforum.com
-
Noise and smoke exhaust
Injector and exhaust noise is loud unless mufflers are well designed, and some smoke is typical of the two-stroke design.trawlerforum.com
Maker’s service schedule (18)
| Engine oil & filter change | 150 hrs | “Industrial & Marine 150 Hours (max. engine oil change interval, fuel sulfur 0 to .50%)” — manufacturer, archive.org |
| Fuel filters & water separator | 300 hrs | “Install new elements every 300 hours or when plugging is indicated (Item 13 fuel strainer and filter)” — manufacturer, archive.org |
| Coolant replacement & freeze-point test | 1,000 hrs | “Clean the cooling system every 1,000 hours using a good radiator cleaning compound” — manufacturer, archive.org |
| Engine pencil zincs | 500 hrs | “Every 500 hours ... remove the zinc electrodes from the inlet side of the raw water pump and the heat exchanger” — manufacturer, archive.org |
| Heat exchanger & oil cooler cleaning | 1,000 hrs | “remove the retaining cover every 1,000 hours and inspect the heat exchanger core” — manufacturer, archive.org |
| Drive belts inspect / replace | 200 hrs | “check the tension of the drive belts every 200 hours” — manufacturer, archive.org |
| Air filter / intake silencer dry-type air cleaner | 1 yr | “Dry type elements should be discarded and replaced with new elements after one year of service or when the maximum allow” — manufacturer, archive.org |
| Transmission fluid change Allison Torqmatic M / MH marine gear | 200 hrs | “Drain the oil every 200 hours and flush the gear with light engine oil (Item 41 Torqmatic marine gear)” — manufacturer, archive.org |
| Clean crankcase breather | 1,000 hrs | “Remove the externally mounted crankcase breather assembly every 1,000 hours and wash the steel mesh pad” — manufacturer, archive.org |
| Inspect blower screen | 1,000 hrs | “Inspect the blower screen and gasket assembly every 1,000 hours” — manufacturer, archive.org |
| Check / clean air box drain tubes | 1,000 hrs | “check for flow of air from the air box drain tubes every 1,000 hours” — manufacturer, archive.org |
| Check thermostats and seals | 5,000 hrs or 1 yr | “Check the thermostats and seals at 5,000 hours or once a year” — manufacturer, archive.org |
| Inspect all hoses | 500 hrs or 1 yr | “all hoses should be thoroughly inspected at least every 500 operating hours ... and/or annually” — manufacturer, archive.org |
| Drain water/sediment from fuel tank | 500 hrs | “Open the drain at the bottom of the fuel tank every 500 hours to drain off any water and/or sediment” — manufacturer, archive.org |
| Coolant filter/conditioner element (if fitted) | 500 hrs | “the filter element should be changed every 500” — manufacturer, archive.org |
| Check emergency (air) shutdown | 700 hrs | “check the operation of the emergency shutdown every 700 hours” — manufacturer, archive.org |
| Check engine and transmission mounts | 2,000 hrs | “Check the engine and transmission mounting bolts and the condition of the mounting pads every 2,000 hours” — manufacturer, archive.org |
| Replace fresh-water pump seal | 6,000 hrs | “Replace the water pump seal after it has been in service for 6,000 hours” — manufacturer, archive.org |
Service part numbers (7)
| Raw-water impeller Detroit raw-water pump with 2 1/2 in. impeller (pumps 5115396 / 23507971) |
Detroit Diesel 5193602 | “Impeller for Detroit Diesel and Volvo Penta Marine Water Pumps 5193602 Impeller with 10 Blades and 12 Spline Drive” — dealer, dieselpro.com · “Detroit Diesel Series 71 Raw Water Pump Impeller, New (5193602)” — dealer, highwayandheavyparts.com |
| Raw-water pump kit pumps 5115396 / 23507971 (2 1/2 in. impeller) |
Detroit Diesel 5197224 | “Detroit Diesel Marine Water Pump repair kit 6V53, 6V71, 6-71, 6V92 5197224P For 2 1/2" impeller height” — dealer, dieselpro.com · “A-5197224 1 1 1 Reconditioning Kit ... Pumps #5115396,#23507971” — dealer, interstate-mcbee.com |
| Raw-water pump kit pumps 5122599 / 23507972 (3 1/2 in. impeller) |
Detroit Diesel 5197222 | “Detroit Diesel Marine Water Pump repair kit for 6-71, 8V71, 8V53, 12V71, 6V92, 8V92 5197222” — dealer, dieselpro.com · “A-5197222 1 1 1 Reconditioning Kit Pumps #5122599,#23507972” — dealer, interstate-mcbee.com |
| Zinc / anode electrode assembly, 2 1/8 in., at raw-water pump inlet |
Detroit Diesel 8517479 | “A-8517479 1 1 1 Electrode Assembly - 2 1/8" L At pump inlet” — dealer, interstate-mcbee.com · “Detroit Diesel Electrode, 2.125" Long (8517479) - In-Line 71 Series Heat Exchangers” — dealer, powerlinecomponents.com |
| Zinc / anode electrode assembly, 3 3/8 in., in heat exchanger |
Detroit Diesel 8515850 | “A-8515850 1 1 1 Electrode Assembly - 3 3/8" L In exchanger” — dealer, interstate-mcbee.com · “Detroit Diesel Zinc Electrode, 3.375" Long (8515850) - In-Line 71 Series Heat Exchangers” — dealer, powerlinecomponents.com |
| Thermostat 173 F non-blocking type |
Detroit Diesel 5172141 | “57 5.2050 5172141 Thermostat Assy.” — manufacturer, tractorparts.com · “Detroit Diesel Thermostat for 371, 471, 671 5172141” — dealer, dieselpro.com |
| Thermostat 170 F full-blocking type (needs seal 5132155) |
Detroit Diesel 23503826 | “A-23503826 1 1 Thermostat 170° F Full blocking use seal” — dealer, interstate-mcbee.com · “Detroit Diesel Thermostat, 170 Deg. (23503826)” — dealer, powerlinecomponents.com |
From the engine maker’s parts lists, or two independent parts dealers. Numbers change with serial number and get superseded — check yours before ordering.
Model sources (3)
Other Ocean Yachts models
- Ocean Yachts 42 Super Sport (1991-95) 1991–1995
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.