Systems
Systems & components
Amalie's structured equipment database — every part with its location, condition, and the maintenance and tasks attached to it. This is what makes a quick note like “changed the fuel filter” resolve to the right record.
System groups
11
Components
58
Critical
3
Open issues
16
Engine & Fuel
Universal diesel, drivetrain, cooling, and the fuel path from tank to injectors.
Main diesel engine
Universal / Westerbeke · M-30 / 5424 (survey conflict: M25)
Engine compartment
Manuals: 3 cyl, 24 hp @ 2800 rpm, 68 cu in, 21:1 compression. Personal notes conflict (~25 hp @ 3200, Kubota D950 lineage); survey lists an M25 (~21 hp). No-start/air-in-fuel history and an over-pitched prop that may be lugging it.
Transmission
Universal · 2:1 reduction (type/serial unverified)
Aft of engine
Fill to full mark/ring on dipstick with Type A ATF or GM Dexron-II per manual; do not mix oils.
Propeller
Fixed 3-blade, likely 14x11 or 14x12
Prop shaft
Over-pitched: engine reportedly can't exceed ~2000 RPM under load, with strong prop walk in reverse. Recommended alternatives: 14x8 fixed 3-blade or 15x9 fixed 2-blade; Flexofold/Max-Prop/Autoprop discussed.
Raw-water / sea-water pump
Oberdorfer, Sherwood, or Johnson (installed unit unverified)
Engine, front
Manual lists assemblies 301357 (Oberdorfer), 300986 (Sherwood), 302259 (Johnson), 302648. Sherwood impeller #9959K noted, but only valid if the Sherwood pump is confirmed.
Freshwater cooling / heat exchanger
Universal
Engine
Coolant capacity ~6 qt of 50/50 mix, 14 psi cap. Drains, clean-out covers, air bleed valve, and manifold drain shown in manual; actual service history unknown.
Thermostat
Universal · Wax-pellet
Thermostat housing, engine
Operating temperature ~175–190°F per manual v2. Part number not recovered.
Air intake / flame arrester
Universal
Engine air breather
No paper filter — clean the flame arrester with solvent and lightly oil. Black buildup can contribute to cold-start smoke.
V-belt / fan belt
Universal / Gates · 302108 or Gates 7390 (unverified)
Engine front
A loose or slipping belt causes charging and cooling problems. Manual says carry a spare.
Alternator
Motorola / Universal · 12 V — 51 A or 55 A (manuals conflict)
Engine
Manual v1 lists 51 A, v2 lists 55 A. Charges the starter battery; house LiFePO4 charges through the Orion DC-DC, keeping the alternator isolated from lithium loads.
Starter motor
Universal · Electric starter
Engine
Manual covers starter specs and no-crank troubleshooting (battery, wiring, solenoid, pinion/ring gear, brushes). No Amalie-specific failures recorded beyond fuel-side no-starts.
Glow plugs / preheat
Universal · One per cylinder
Cylinder head
Preheat 30–60 s depending on conditions; supports starts down to 5°F. Torque 14.5–18.1 ft-lb per manual bolt table.
Engine oil
15W-40 diesel (API CF/CG/CH) or SAE 30 HD / 10W40 HD per manuals
Engine sump
Carry 2 qts spare per manual. An oil extractor is useful for changes in place.
Engine oil filter
FRAM (installed) / Universal-Westerbeke (spec) · Installed: FRAM PH2870A — non-standard
Engine
Part numbers conflict across sources: 300209 (v1), 298852 (v2), 299381 (current OEM). Installed PH2870A physically fits but is taller with ~22 psi bypass vs ~12 psi spec. Equivalents noted: Sierra 18-7884, FRAM PH3614, Baldwin B228, Kubota 70000-36160.
Fuel injection pump
Bosch / Universal · Bosch mini K type
Engine
Precision pump — internal clearances ~0.0004 in, so clean filtered fuel is critical. Timing set by shims (one shim ≈ 1.5°; correct when flywheel pointer aligns with F1 mark).
Fuel injection nozzles
Universal · P/N 298787 & 298788 per manual v1
Cylinder head
Cracking pressure 1990–2133 psi; a 0.1 mm shim adds ~142 psi. Never expose skin to atomized fuel. Nozzle faults cause no-start, poor running, and smoke.
Primary fuel filter / water separator
Racor · 500FG Turbine Series
Fuel line before engine (exact spot unverified)
Air-ingress history: engine starts then dies after fuel-system work. Suspects: drain plug, bowl gasket, T-handle/lid gasket, suction-side clamps. Bottom drain RK30488; bowl side plug RK20126.
Secondary engine-mounted fuel filter
Universal / Westerbeke · 298854
Engine
Equivalents: NAPA 3390 / Wix 33390, Fram P7414, Kubota 12581-43012. Must be bled until bubble-free after replacement. Don't confuse with oil-filter part numbers.
Electrical & Charging
LiFePO4 house bank, Victron charging chain, solar, shore power, and DC distribution.
House battery
LiTime · 12 V 230 Ah LiFePO4, 200 A BMS
Battery compartment
SmartShunt profile: charged voltage 14.4 V, tail current 2.3 A, Peukert 1.05, efficiency 99%, floor 10%. Block charging below ~0°C per LiFePO4 practice.
Starter battery
AGM (inferred from charging topology)
Battery compartment
Topology: alternator → starter battery → Orion DC-DC → house LiFePO4; shore charger feeds the starter side. Brand/capacity unknown.
Battery monitor
Victron Energy · SmartShunt
House battery negative
First-charge review clarified 0.3 kWh ≈ 23 Ah at 13 V. SOC may read wrong until synchronized.
Solar charge controller
Victron Energy · SmartSolar MPPT 100/30
Near batteries
First charge showed max PV 90 W and a 9 h bulk with no absorption/float yet — likely SOC/conditions, no fault proven. Combined charge current must stay under LiTime's ~100 A max.
Solar panel
Renogy · RSP200DB-72, 200 W
Unknown — quantity uncertain
Vmp 20.1 V, Imp 10.02 A. One note says one panel installed, another says one or two were being considered.
DC-DC charger
Victron Energy · Orion-Tr Smart 12/12-30A isolated
Between starter and house banks
Charges house LiFePO4 from the starter/alternator side. One wire per terminal, max ~6 AWG — merge feeds via bus bar or terminal block, never two wires under one terminal.
AC shore charger
Professional Mariner (possibly replaced with Victron) · Older 50 A unit — status uncertain
Unknown
The old Professional Mariner 50A is not natively LiFePO4-compatible; one note says it may have been replaced with a lithium-safe Victron unit, but that is unconfirmed.
DC distribution / bus bars / breakers
Victron/LiFePO4 DC system
Near batteries
Charging flows through separate breakers, bus bars, and the shunt, but the exact layout is unknown and wiring near the batteries is cluttered.
Navigation & Comms
Raymarine ecosystem: chartplotter, instruments, autopilot, radar, VHF, and AIS.
Multifunction display / chartplotter
Raymarine · Axiom+ 9 (earlier notes say Axiom+ 7)
Helm panel
Panel-fit notes show an Axiom+ 9 plus ST70 fits the 15.75 in helm panel with ~2.2 in margin. Bridges SeaTalk to NMEA 2000.
Navigation chart card
Garmin / Navionics · Navionics+ U.S. & Canada microSD
Chartplotter card slot
Detailed New England depth contours and tides; routes/waypoints sync over Wi-Fi with the Navionics Boating app.
Wind / depth instruments
Raymarine · ST60+ wind & depth
Mast / helm
Integrated into the SeaTalk ecosystem.
Network backbone
Raymarine / NMEA · SeaTalk / SeaTalkNG; NMEA 2000 via Axiom+
Behind helm / cabin runs
The Axiom+ bridges legacy SeaTalk instruments onto NMEA 2000.
Radar
Furuno DRS4W formerly? Raymarine Quantum 2 future?
Unknown
References conflict; installed status is simply unknown.
Autopilot control head
Raymarine · ST70
Helm panel
Paired with the X-10 course computer.
Course computer
Raymarine · X-10
Below decks
Drives the linear drive from the fluxgate heading input.
Autopilot drive
Raymarine · Linear drive
Steering quadrant
Mechanical linkage to the quadrant — inspect mounts seasonally.
Heading sensor
Raymarine · Fluxgate compass
Below decks, midship
Feeds heading to the autopilot.
AIS receiver / transceiver
Not installed — options compared Apr 2026
—
Candidates: em-trak R300 (receive-only), em-trak B953 (best-value Class B SOTDMA with splitter), Raymarine AIS700, SI-TEX MDA-1. A transceiver makes Amalie visible to ships — the safety upgrade.
Fixed VHF
Installed model unknown (Ray73 discussed)
Nav station
A Raymarine Ray73 was discussed as an upgrade path.
Plumbing & Sanitation
Holding tank, macerator, fresh water, winterization path, and bilge systems.
Macerator pump
Jabsco · 18590-2092 sealed macerator
Holding tank outlet
Runs briefly then trips the 20 A breaker and/or pumps no discharge. Conflicting test notes. Suspect upstream blockage at the 1.5 in hose clamps, tank outlet, or Y-valve.
Holding tank & head plumbing
Original PVC / Y-valve setup
Under V-berth / head
Odor/flow risk from aged hoses and original PVC plumbing. Overhaul is on the task list alongside the macerator fix.
Galley-sink winterization diverter
Sink diverter / RV antifreeze feed
Galley sink
Previous owner's procedure: 7–8 gal pink RV antifreeze drawn through the diverter to winterize engine, fresh water, head, and bilge.
Bilge pump
Rule · 27DA
Bilge sump
No float switch installed yet — the pump has no automatic redundancy until that task is done.
Bilge float switch
Not installed — planned
Bilge sump (planned)
Planned redundancy for the Rule 27DA. Exact switch not selected yet.
Galley
Propane system, stove, and refrigeration.
Propane stove
Gimbaled propane stove
Galley
Downstream of the aged pigtails — don't use until those are replaced and the system leak-tests clean.
Propane pigtails / regulator connections
POL to NPT/flare pigtails, two-tank setup
Propane locker
Recorded as aged — a gas leak risk. Replace before propane use. Sealant only on NPT tapered threads (gas-rated dope or yellow PTFE); never on POL or flare fittings.
12 V fridge / icebox
Actual model unknown
Galley
Portable compressor candidates were discussed but the installed unit is unidentified.
Rig & Sails
Mast, standing rigging, and sail inventory.
Standing rigging
1/4 in 1x19 stainless; three shrouds per side
Mast
Recorded as original and never replaced (~40 years). The survey recommended replacement due to age. This is the boat's top safety item.
Mast and spars
Bristol Yachts · Masthead sloop rig
Deck-stepped
I = 40.8 ft, P = 34.8 ft, forestay ≈ 42.98 ft, air draft ≈ 46–48 ft including masthead gear.
Sail inventory
Main, roller-furling headsail, spinnaker
Aboard
Condition and age of each sail not recorded yet.
Ground Tackle
Anchors, rode, and anchoring hardware.
Safety & Compliance
USCG gear, race compliance, and safety requirements.
Life jackets / throwable / lights
USCG safety gear
Cabin and cockpit lockers
Inventory and expiry dates not yet recorded.
Figawi / PHRF compliance
PHRF-NE / Figawi · Certificate & training requirements
—
Amalie's eligibility and the training/safety requirements were assessed for Figawi/PHRF-NE.
Dinghy & Outboard
Avon RIB, Johnson outboard, and tender lines.
Dinghy
Avon · Rover 3.10 RIB
Davits / deck
Serial and capacity not yet logged.
Outboard motor
Johnson · 1997 8 HP J8REUC
Dinghy / stern rail
Lower-unit/water pump service planned: kit 0396644 (or impeller 0389576 alone); brass shift-rod connector 0303794 must be disconnected for lower-unit removal.
Dinghy dock / towing lines
3/8 in double braid nylon
Dinghy
For docking and towing.
Hull & Deck
Structure, bottom, deck core, and miscellaneous boat systems.
Hull
Bristol Yachts · Bristol 31/31.1, solid fiberglass
Entire vessel
Solid fiberglass monohull, LOA 31 ft, 1985 build.
Deck
Bristol Yachts · Likely balsa-cored deck
Entire deck
Deck likely cored (probably balsa), which makes the open ding repair time-sensitive.
Transfer pump system
Unknown — may be obsolete
Unknown
Mentioned on the task list but details are unknown; may be nonstandard or removable.
Tools
Specialty tools kept aboard for service and tuning.
Why this matters
The backbone for AI-assisted logging
With every component, location, and product captured here, a quick spoken or typed note can be resolved into the right system, the right part, its history, and the follow-up it deserves — so logging a job takes a sentence, not a form.