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Valiant 40

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About the Valiant 40

Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.

Valiant 40
Photo: Mds08011, CC BY 4.0 via Wikimedia Commons · licence
Builder
Uniflite (Bellingham, WA) 1973-1984; Valiant Yachts (Texas) 1984-1992
Designer
Robert Perry
Length
39.9 ft
Waterline
34 ft
Beam
12.33 ft
Draft
6 ft
Displacement
22,500 lb
Ballast
7,700 lb
Hull
fiberglass
Hull / keel
fin keel
Rig
cutter
Propulsion
inboard
Number built
200
Stern thruster
not fitted
Steering
pedestal cable · Edson
Tank capacities — where the figures come from
  • Fuel unknown
    “Fuel: 95 gal.” — review, wavetrain.net
    Sources still disagree: the sailboatdata spec database gives 85 gal, a Wavetrain review 95 gal. Valiant's own website has a V40 page but gives no tank sizes; tankage is said to have varied by year.
  • Water unknown
    “Water: 120 gal.” — review, wavetrain.net
    Sources still disagree: the sailboatdata spec database gives 125 gal, the Wavetrain review 120; no builder figure 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 unknown
    No source mentions a thruster.
  • Stern thruster not fitted
    Our earlier figure of none has no source, and nothing was found either way.
  • Steering pedestal cable · Edson
    “Wheel steering is Edson with radial drive. The drive wheel is easily accessible from the cockpit locker.” — review, practical-sailor.com · “VALIANT 40 & 47 (S-1704) CLASSIC PEDESTAL STEERER ... CHAIN & WIRE ROPE ASSY. W/HARDWARE ... RADIAL DRIVE WHEEL” — spec database, edsonmarine.com
    Practical Sailor and Edson's steering data sheet agree: Edson pedestal with chain-and-wire to a radial drive wheel, plus an emergency tiller. No builder document found.

Thrusters and steering are often replaced — check the units on your boat before ordering parts.

Sources disagree on first year, last year, engines, fuel tank, water tank — left blank rather than guessed.

Credited with starting the performance-cruiser category. Fin keel with skeg-hung rudder (skeg is a foam-filled steel weldment bolted and glassed on), canoe stern, true cutter rig, external lead ballast, engine under the cockpit on a V-drive. Solid hull, balsa-cored deck. Blister-era hulls are roughly numbers 120-249 (hull numbers start at 101), so check the HIN. About 200 built (SpinSheet, Wave Train). Displacement and ballast are from the original builder brochure. Replaced by the Valiant 42.

Engines fitted

Boats of the same model can differ — check which engines yours actually has before ordering parts.

Known problems for this model

Engines & parts

Westerbeke W-40 (Westerbeke 40) parts: good

Factory standard engine — you entered “Westerbeke 4-107 (Westerbeke 40)”

Shares its base engine and rear-seal problem with the Perkins 4.108 (Foley Engines' 4.108 rear seal fix also covers the Westerbeke 40), so many internal parts can be sourced through Perkins 4.108 channels such as TAD and Foley.

Parts sources: Foley Engines, Trans Atlantic Diesels (Perkins 4.108 parts), Westerbeke (factory parts store)

Common problems (2)
  • Rear main seal leak engine
    Same chronic rope-seal leak as the Perkins 4.108.
    foleyengines.com
  • Overheating under load cooling
    Owners chasing W-40 overheating often find a nearly blocked raw water elbow at the exhaust elbow or a failed heat exchanger.
    cruisersforum.com
Maker’s service schedule (19)
Engine oil & filter change
W 40NA (1988 operator's manual, pub. 37169)
100 hrs
“Servicing After Every 100 Hours of Operation 1. Change the engine's lubrication oil and oil filter.” — manufacturer (1988), westerbeke.com
Engine oil & filter change
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
150 hrs or 1 yr
“IT IS MANDATORY THAT THE CHECKS 3, 4, 5 AND 6 BE ATTENDED TO WHEN TOTAL OPERATING TIME REACHES 150 HOURS.” — manufacturer (1980), westerbeke.com
Fuel filters & water separator
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
1 yr
“10. Wash primary filter bowl and screen. ... 11. Replace secondary fuel filter element.” — manufacturer (1980), westerbeke.com
Valve clearance check / adjust
W 40NA (1988 operator's manual, pub. 37169)
500 hrs
“Servicing After Every 500 Hours of Operation *1. Torque the cylinder head nuts. *2. Adjust the valve clearances.” — manufacturer (1988), westerbeke.com
Retorque cylinder head nuts
W 40NA (1988 operator's manual, pub. 37169)
500 hrs
“Servicing After Every 500 Hours of Operation *1. Torque the cylinder head nuts.” — manufacturer (1988), westerbeke.com
Drive belts inspect / replace
W 40NA (1988 operator's manual, pub. 37169)
100 hrs
“Servicing After Every 100 Hours of Operation ... 2. Adjust the alternator and water pump drive belt tension, if required” — manufacturer (1988), westerbeke.com
Drive belts inspect / replace
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
1 yr
“SEASONAL CHECK-OUT (MORE OFTEN IF POSSIBLE) ... 1. Check generator or alternator "V" belt for tension.” — manufacturer (1980), westerbeke.com
Raw-water pump impeller
W 40NA (1988 operator's manual, pub. 37169)
250 hrs
“Servicing After Every 250 Hours of Operation ... Check the sea water pump's Impeller.” — manufacturer (1988), westerbeke.com
Coolant replacement & freeze-point test
W 40NA (1988 operator's manual, pub. 37169)
500 hrs
“Servicing After Every 500 Hours of Operation ... 3. Drain, flush, and refill the fresh water cooling system.” — manufacturer (1988), westerbeke.com
Coolant replacement & freeze-point test
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
1 yr
“END OF SEASON SERVICE 1. Drain fresh water cooling system ... 3. Fill fresh water cooling system with antifreeze” — manufacturer (1980), westerbeke.com
Engine pencil zincs
W 40NA (1988 operator's manual, pub. 37169)
1 mo
“Monthly Check the condition of the zinc anode in the heat exchanger's sea water circuit.” — manufacturer (1988), westerbeke.com
Engine pencil zincs
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
1 yr
“2. Remove zinc rod (usually located in heat exchanger) and see if it needs replacing.” — manufacturer (1980), westerbeke.com
Air filter / intake silencer
Westerbeke 40 / Four-107 (1980 technical manual, pub. 20502 ed. 8)
1 yr
“12. Replace air filter.” — manufacturer (1980), westerbeke.com
Injector test / service
W 40NA (1988 operator's manual, pub. 37169)
800 hrs
“Servicing Attar Every 800 Hours of Operation *1. Remove and check fuel injectors.” — manufacturer (1988), westerbeke.com
Compression test, alternator check, tighten bolts/nuts/clamps
W 40NA (1988 operator's manual, pub. 37169)
800 hrs
“Servicing Attar Every 800 Hours of Operation ... *2. Check the engine's compression pressure.” — manufacturer (1988), westerbeke.com
Heat exchanger & oil cooler cleaning
W 40NA (1988 operator's manual, pub. 37169)
1,000 hrs
“Servicing After Every 1000 Hours of Operation 1. Remove, clean, and pressure test the primary heat exchanger.” — manufacturer (1988), westerbeke.com
Check fuel injection pump timing
W 40NA (1988 operator's manual, pub. 37169)
1,000 hrs
“Servicing After Every 1000 Hours of Operation ... *2. Check the fuel injection pump's timing.” — manufacturer (1988), westerbeke.com
Transmission fluid change
W 40NA with Hurth HBW 150 gearbox (1988 operator's manual)
250 hrs or 1 yr
“Change the transmission fluid after the first 30 hours of engine operation and thereafter every 250 hours (or once per y” — manufacturer (1988), westerbeke.com
Transmission fluid change
Westerbeke 40 with Westerbeke-Paragon SA1/SAO manual or Paragon P200/P300/P400 hydraulic gear (1980 technical manual)
100 hrs or 1 yr
“Under normal conditions, the oil should be changed every 100 hours or each season, whichever is shorter.” — manufacturer (1980), westerbeke.com
Service part numbers (11)
Oil filter
Spin-on filter (engines from 1975; also the pre-1975 spin-on conversion)
Westerbeke 016655
“40 16655 FILTER LUBE OIL” — manufacturer, westerbeke.com
Oil filter
Early canister-type oil filter (to 1975), element only
Westerbeke 011268
“35 11268 ELEMENT LUBE OIL FILTER” — manufacturer, westerbeke.com
Fuel filter Westerbeke 011703
“11703 ELEMENT,FUEL” — manufacturer, hansenmarine.com
Fuel pre-filter / separator Westerbeke 032974
“92-2 32974 FILTER SEDIMENTER/WATER TRAP” — manufacturer, westerbeke.com
Raw-water impeller
Sea water pump 16423 (rubber impeller; standard)
Westerbeke 033104
“9 33104 KIT IMPELLER AND GASKET” — manufacturer, westerbeke.com · “33104 IMPELLER KIT 16423 PUMP” — manufacturer, hansenmarine.com
Raw-water impeller
Old sea water pump 11020 (NLA, replaced by pump 16423)
Westerbeke 011906
“5 11906 KIT IMPELLER AND GASKET” — manufacturer, westerbeke.com
Raw-water pump kit
Sea water pump 16423
Westerbeke 018172
“2-3 18172 KIT MAJOR REPAIR” — manufacturer, westerbeke.com · “18172 KIT,WATER PUMP 16423 MAJOR REP” — manufacturer, hansenmarine.com
Drive belt
Standard alternator
Westerbeke 012270
“12270 BELT” — manufacturer, hansenmarine.com
Air filter Westerbeke 012556
“2 12556 FILTER AIR INTAKE” — manufacturer, westerbeke.com
Zinc / anode Westerbeke 011885
“23 11885 ZINC” — manufacturer, westerbeke.com
Thermostat Westerbeke 024688
“9 24688 THERMOSTAT” — manufacturer, westerbeke.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.

Perkins 4.108 parts: good

Factory standard engine — you entered “Perkins 4-108”

Out of production but very well supported. Trans Atlantic Diesels (TAD) sells complete aftermarket rebuild kits (pistons, liners, rings, bearings, gaskets, valves, guides, seals), heads, blocks, crankshafts, genuine Perkins camshafts, rebuilt injection pumps and injectors, Jabsco/Sherwood raw water pumps, heat exchangers, starters, alternators and elbows, plus rebuilt exchange engines. The Westerbeke 4-107/4-108 family and some industrial engines share the base design.

Parts sources: Trans Atlantic Diesels (TAD), Foley Engines

Common problems (1)
  • Rear main (crankshaft) seal leak engine
    The original rope-type rear seal is notorious for leaking and often starts leaking again a few hundred hours after replacement; Foley sells a nylon/Teflon replacement seal meant to cure it, and owners check the crankshaft sealing surface for pitting.
    foleyengines.com · boatdesign.net · forums.sailinganarchy.com
Maker’s service schedule (13)
Engine oil & filter change
4.108(M) marine
150 hrs or 3 mo
“4.107(M) and 4.108(M) Engines ... Every 150 hours or 3 months (whichever occurs first). Drain and renew lubricating oil” — manufacturer (1973), fujiyachts.net
Fuel filters & water separator
4.108(M) marine
400 hrs or 1 yr
“Every 400 hours or 12 months (whichever occurs first). Renew final fuel filter element.” — manufacturer (1973), fujiyachts.net
Air filter / intake silencer
4.108(M) marine
150 hrs or 3 mo
“Every 150 hours or 3 months (whichever occurs first). ... Clean air intake gauze.” — manufacturer (1973), fujiyachts.net
Drive belts inspect / replace
4.108(M) marine
150 hrs or 3 mo
“Every 150 hours or 3 months (whichever occurs first). ... * Check drive belt tension.” — manufacturer (1973), fujiyachts.net
Valve clearance check / adjust
4.108(M) marine
2,400 hrs
“Every 2,400 hours ... Check and adjust valve tip clearances.” — manufacturer (1973), fujiyachts.net
Injector test / service
4.108(M) marine
2,400 hrs
“Every 2,400 hours ... Service atomisers.” — manufacturer (1973), fujiyachts.net
Transmission fluid change
4.108(M) marine
400 hrs or 1 yr
“Every 400 hours or 12 months (whichever occurs first). ... Change gearbox oil.” — manufacturer (1973), fujiyachts.net
Clean water trap
4.108(M) marine
150 hrs or 3 mo
“Every 150 hours or 3 months (whichever occurs first). ... Clean water trap.” — manufacturer (1973), fujiyachts.net
Check engine for oil and water leaks
4.108(M) marine
150 hrs or 3 mo
“Every 150 hours or 3 months (whichever occurs first). ... Check engine for leakage of oil and water.” — manufacturer (1973), fujiyachts.net
Lubricate dynamo rear bush (where fitted)
4.108(M) marine
150 hrs or 3 mo
“Every 150 hours or 3 months (whichever occurs first). ... Lubricate dynamo rear bush (where fitted).” — manufacturer (1973), fujiyachts.net
Check hoses and clips
4.108(M) marine
400 hrs or 1 yr
“Every 400 hours or 12 months (whichever occurs first). ... Check hoses and clips.” — manufacturer (1973), fujiyachts.net
Drain and clean fuel tank
4.108(M) marine
400 hrs or 1 yr
“Every 400 hours or 12 months (whichever occurs first). ... Drain and clean fuel tank” — manufacturer (1973), fujiyachts.net
Examine and service starter motor, generator etc.
4.108(M) marine
2,400 hrs
“Every 2,400 hours Arrange for examination and service of proprietary equipment, i.e. starter motor, generator, etc.” — manufacturer (1973), fujiyachts.net
Service part numbers (7)
Oil filter
later engines with spin-on filter
Perkins 2654403
“A genuine Perkins 4.108 oil filter - OE Part No. 2654403 ... Fits 4.108 and 4.108M.” — dealer, parts4engines.com · “Filter, Oil late type long 2654403, Length 130mm - 2654403” — dealer, lancingmarine.com
Oil filter
early engines with element-in-canister filter
Perkins 26540154
“A genuine Perkins 4.108 Oil Filter - OE Part No. 26540154” — dealer, parts4engines.com · “Filter, Oil early type 26540154, Length 122mm - 26540154” — dealer, lancingmarine.com
Fuel filter
cartridge-type filter housing (most engines)
Perkins 4326658
Replaces 26561117
Also: Delphi (CAV) 296
“A genuine Perkins 4.108 fuel filter - OE Part No. 4326658 ... supersedes ... 26561117.” — dealer, parts4engines.com · “Fuel Filter (296) Was 26561117 Now 4326658” — dealer, lancingmarine.com
Fuel filter
early engines with bowl-type filter housing
Perkins 30242
“A genuine Perkins 4.108 fuel filter element - OE Part Number 30242 ... fitted to early Perkins 4.108” — dealer, parts4engines.com · “Filter element, Fuel old type 30242, Length 74mm small element - 30242” — dealer, lancingmarine.com
Raw-water impeller
Jabsco raw-water pump (3270, 3370-200 or 9970-200)
Jabsco 1210-0001
“4.107M / 4.108M / LL 9970-200 040 3/4" BSP Flange SK229 3298 1210-0001” — manufacturer, marineengine.com
Raw-water pump kit
Jabsco 9970-200 pump
Jabsco SK229
“4.107M / 4.108M / LL 9970-200 040 3/4" BSP Flange SK229 3298 1210-0001” — manufacturer, marineengine.com
Raw-water pump kit
Jabsco 3370-200 pump (obsolete)
Jabsco SK33
“4.107M / 4.108M / LL 3370-200 ... 9970-200 SK33 3298 1210-0001” — manufacturer, marineengine.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.

Volvo Penta 2001 / 2002 / 2003 / 2003T parts: limited

Factory standard engine — you entered “Volvo Penta 2003T (3-cyl turbo)”

Parts are available through Volvo Penta but owners consider them unique and overpriced (e.g., 2003T turbo, aluminum heat exchanger and oil cooler each quoted in the $1,700–3,000 range). Workarounds include converting the 2003T cooling system to aftermarket cupronickel heat exchanger and oil cooler, using the common aftermarket turbo, and cross-referencing some Perkins parts. Parts4Engines stocks aftermarket service parts.

Parts sources: Parts4Engines, Power Products Systems (genuine Volvo Penta parts)

Common problems (3)
  • Aluminum oil cooler and heat exchanger failures (2003T) cooling
    The aluminum oil cooler and heat exchanger are the usual first failures, and genuine replacements are very expensive, so some owners convert to aftermarket coolers or repower.
    cruisersforum.com · facebook.com
  • Carboned exhaust elbow and turbo from low-load running exhaust
    Long periods at low rpm carbon up the elbow and the 2003T turbo; the turbo can also be wrecked if it ingests the intake silencer foam.
    cruisersforum.com
  • Hard starting on older raw-water-cooled 2002s engine
    Original raw-water-cooled 2002s are described as reliable but difficult to start.
    forums.ybw.com
Maker’s service schedule (10)
Engine oil & filter change100 hrs or 1 yr
“100 HOURS (OR SEASONAL) ENGINE SERVICE” — manufacturer, sbo.sailboatowners.com
Oil filter change (every second oil change)200 hrs or 2 yrs
“The oil filter should be changed after the first 20 hours of running, and thereafter at every second change of engine oi” — manufacturer, sbo.sailboatowners.com
Air filter / intake silencer
2001, 2002, 2003 (clean)
1 yr
“The intake silencer should be cleaned each season.” — manufacturer, sbo.sailboatowners.com
Air filter / intake silencer
2003T (replace)
2 yrs
“On 2003T the intake silencer should be replaced once every two years.” — manufacturer, sbo.sailboatowners.com
Transmission fluid change400 hrs or 1 yr
“The oil in the drive should be changed after every 400 hours or at least once a season.” — manufacturer, sbo.sailboatowners.com
Raw-water pump impeller100 hrs or 1 yr
“CHECK/CHANGE THE IMPELLER” — manufacturer, sbo.sailboatowners.com
Valve clearance check / adjust100 hrs or 1 yr
“CHECK VALVE CLEARANCE Checking and adjusting the valve clearance should only be carried out by an authorized Volvo Penta” — manufacturer, sbo.sailboatowners.com
Dismantle and clean the vacuum (siphon-break) valve1 yr
“To make sure that the vacuum valve functions properly it should be dismantled at least once every season.” — manufacturer, sbo.sailboatowners.com
Replace S-drive rubber seal (dealer)
S-drive (saildrive) installations
7 yrs
“The seal should be changed every seven years.” — manufacturer, sbo.sailboatowners.com
Replace rubber stuffing box (shaft seal)
Shaft installations with a rubber stuffing box
500 hrs or 5 yrs
“The rubber stuffing box must be replaced after 500 hours or 5 years.” — manufacturer, sbo.sailboatowners.com
Service part numbers (7)
Oil filter Volvo Penta 22057107
Replaces 834337
“p.90 "2001, 2002, 2003, 2003T" block: Oil filter — 22057107” — manufacturer, volvopenta.com · “Volvo Penta genuine oil filter to replace old model 834337. Fits … 2001, 2002, 2003, 2003T” — dealer, foxschandlery.com
Fuel filter Volvo Penta 21492771
Replaces 829913, 3825133
“p.90 "2001, 2002, 2003, 2003T" block: Fuel filter — 21492771” — manufacturer, volvopenta.com · “Brandstoffilter Volvo Penta 21492771 (vervangt 829913) … Volvo Penta 2001 … 2003T” — dealer, bakker-ijlst.nl
Raw-water impeller
2001, 2002, 2003 (not 2003T)
Volvo Penta 21951342
Replaces 3586496, 875583
Also: Johnson 09-808B
“p.90 "2001, 2002, 2003, 2003T" block: Impeller kit (2001, 2002, 2003) — 21951342” — manufacturer, volvopenta.com · “Replaces: Johnson Impeller 09-808B / Jabsco Impeller 22405-0001 … 875583-7, 21951342. Used on Volvo Penta 2001, 2002, 20” — dealer, marineenergy.com.au
Raw-water impeller
2003T
Volvo Penta 21951346
Replaces 3862281, 3855546, 3856039
“p.90 "2001, 2002, 2003, 2003T" block: Impeller kit (2003T) — 21951346” — manufacturer, volvopenta.com · “Volvo Penta: 21951346, 3862281, 3855546, 3856039 / 2003T, MD22A, TMD22A, MD22B, TMD22B, D2-55, D2-75” — dealer, repowermarine.com
Thermostat
raw-water (directly) cooled 2001 / 2002 / 2003
Volvo Penta 877355
Replaces 876691
“Volvo Penta 2001, 2002, 2003 thermostat kit – 877355 … Replaces: 876691” — dealer, ab-marineservice.com · “Thermostat Volvo Penta 2001 2002 2003 - 877355 … 2001 (Directly cooled) 2002 (Directly cooled)” — dealer, marinedustrie.com
Drive belt
raw-water-cooled 2002 / 2003 / 2003T (alternator)
Volvo Penta 966900
Replaces 958303
“Part Number: 966900 … Supersedes: 958303 … 2002 / 2002AG / 2002B / 2002BG … 2003T / 2003TB” — dealer, marisolmarine.com · “V Belt for Volvo Penta 2002, 2003 with Raw Water Cooling … Replace Volvo Penta: 966900, 958303” — dealer, repowermarine.com
Maintenance kit (oil filter, fuel filter, impeller with gaskets) Volvo Penta 877194
“p.89 Maintenance kits for diesel engines: 2001, 2002, 2003 — 877194” — manufacturer, volvopenta.com · “Servicekit Volvo Penta 2001 2002 2003 - 877194” — dealer, marinedustrie.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.

Steering

Edson — Pedestal chain-and-wire steering parts: good

Edson (New Bedford, MA) still sells service parts: chain-and-wire kits, sprockets, idlers, pull-pull conduit steering and internal pedestal parts, and keeps steering data sheets by boat model, many decades old.

Parts sources: Edson Marine (service parts)

Common problems (3)
  • Old or slack steering wire steering
    Edson advises replacing steering wire about every five years, checking tension with the wheel locked, and inspecting under load annually; owners often find decades-old stiff wire.
    usna.edu · youtube.com
  • Lubrication and fastener checks steering
    Chain, wire, sheaves and pedestal bearings need regular oiling or greasing, and clevis/cotter pins and bolts should be checked monthly to avoid failures.
    usna.edu
  • Replacing engine control cables in the pedestal steering
    Swapping throttle/shift cables inside an Edson pedestal is a common owner job requiring removal of the wheel shaft sprocket pin.
    forums.sailboatowners.com

Edson — Traditional geared steerers (worm / rack-and-pinion) parts: good

Edson says its traditional wheels and geared steerers are still available, now built with modern materials; rack-and-pinion steerers are offered for transom-hung and inboard rudders.

Parts sources: Edson Marine (traditional steerers)

Model sources (10)

sailboatdata.com · spinsheet.com · valiantsailboats.com · wavetrain.net · boattomorrow.com · offshoreyachts.com · sailnet.com · cruisersforum.com · practical-sailor.com · edsonmarine.com

Other Valiant models

Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.