J24 Specifications

Always and only use the correct part.
If a part is not yet detailed here, please create the detail and send it to mike@myc.org.
If a part detail has changed, please also send the updated information.
Please replace all clevis pins with nuts and bolts.
When ordering rope, please consider price breaks available for large spools.

Halyards, Sheets & Control Lines

Main Halyard

  • 5/16" Red Solid Color Sta-Set New England Ropes - 70 ft of #243717
  • Main Halyard Shackle, Wichard 81432 - #116335
  • if cut, bill member $65

Genoa Halyard

  • 5/16” Blue Solid Color Sta-Set New England Ropes – 60 ft of #243709
  • Genoa Halyard Shackle, Nicro Ronstan RF6110 - #120949
  • if cut, bill members $60

Spinnaker Halyard

  • ¼” Black Solid Color Sta-Set New England Ropes – 63 ft of # 352989 
  • Spinnaker Halyard Shackle, Nicro Ronstan RF6110 - #120949
  • if cut, bill members $60

Genoa Sheets

  • 7/16” Blue Solid Sta-Set New England Ropes - 30 ft of #243766

  • if lost, bill members $40 each

Main Sheet

  • 3/8” Red Solid Color Sta-Set New England Ropes – 60 ft of #243741

  • if lost or cut, bill members $50

Spinnaker Sheets

  • 3/8” Black Solid Color Sta Set New England Ropes – 55 ft of #315028

  • if lost, bill members $50 each

Traveler Control Line

  • 1/4” Green Solid Color Sta Set New England Ropes – 7 ft of  #243691

Spinnaker Twing Line

  • 1/4” Green Color Coded Sta Set New England Ropes - 8 ft of #121582

  • Spinnaker Twing Line Block, Harken 125 - #114546

Spinnaker Pole Topping Lift

  • 1/4” Green Solid Color Sta Set New England Ropes  – 44ft of #243691

  • Spinnaker pole topping lift shackle, Wichard 2481 - #116087

Spinnaker Pole Downhaul

  • 1/4” Sta Set white with blue fleck New England Ropes  –
    15 ft of #121525

Cunningham Control Line

  •  – 15 ft of  1/4 Red Color Coded Sta Set New England Ropes - PS# 121640

Mast, Boom & Stays

Shrouds & Stays

There are 2 types of turnbuckles found on shrouds at the club.  These are:

  1. Series 200 Open Body - the new system - identified by the turnbuckle which is an open body with female threads. 
  2. Navtec Series 500 - the old system - identified by the joining turnbuckle which is a threaded rod.

When ordering replacement shrouds, please update to the new system with the Series 200 Open Body.  Do not order any more shrouds with the Navtec turnbuckles.

Forestays should be 28' 4" in length.  Please double check because once we received an order which was 2 feet too short.

Spare Turnbuckle Parts for Series 200 Open Body

  • Turnbuckle Open Body, Alex B10-Chrome - #166613
  • Turnbuckle end, Alex TBT 1010 LH - #166660

Spare Parts for Navtec Series 500 old style

  • Turnbuckle Center Screw 5/16", standard length (port supply does not have extra long in this size), Navtec D320-S10 - #166498

  • Turnbuckle Eye Ends 5/16", Navtec D531-1010 - #510860

Backstay Legs, ordered from Port Supply customer rigging

  • 5/32 wire PS #156104

  • aircraft fork #113391

  • toggle jaw/swage - 285298

  • total length varies from pin to pin, 103" to 87” (some red boats may need 85" legs)

Other parts

  • Cotter pins, 3/32” 1”, Port Supply #258004, better to order through McMaster Carr, cheaper and comes quicker, #98401a444

  • Rigging tape self bonding, Port Supply #318600

  • chafe tape to go over top rigging tape MDR-350, jamestown supply, http://www.jamestowndistributors.com/userportal/show_product.do?pid=4117

  • Eye Jaw Toggle for bottom of forestay - #453274

  • Bolts for shrouds are 5/16x24, 1 (McMaster Carr #92240a305), 7/8" (McMaster 92240a304) or 3/4" (McMaster 92240a303), double check, may need 1" bolts for certain parts like foestay extenders

Halyard Cleat Assembly

  • mast mounted info?

  • Halyard exit plate for mast, Schaefer 34-46 - #149492

Mast Head Fly

  • Windex 10 - #277983

  • Spare vane - #351668

When installing masthead fly, apply silicone adhesive (Dow 732, McMaster Carr #7587a35) to all joints to prevent coming loose from vibration.  Otherwise, masthead fly will fall off after a few months.

Boomvang

  • Boomvang turning block at mast with cleat, Harken 042, PS # 114132

  • Boomvang turning block at boom, Harken 028, PS# 114066

  • Shackle between boomvang and mast, Wichard #1203 - #179697

  • line is ordered from port Supply custom rigging, 15 ft of 121970 (1/2 sat-set) with a Sta Set X Eye Splice in one end and the other end with Tail Seizing.

Boom Topping Lift

  • 3/32" Wire - #119305 - 28 ft 10"
  • 3/32 nicopress swage fitting: PS# 2684173  
  • 3/32 thimbles: PS# 2684074
  • rope is 3/16" new England solid color black sta set, Port Supply #352971, length varies from 8" to 18", boom clip should attach to boom shackle at 55.5" above cockpit floor
  • Boom topping lift clip - #116079
  • Shackle on end of boom is Schaefer 93-21, PS #138396, for bolt, use 1/4-20 x 1 1/8"
  • shock cord 5/16 (was 3/16 or 1/4), PS #126870
  • 5/16" Hogrings for shock cord: PS# 2684504

Spreader tips

  • screws - 8 x 3/8

Spinnaker Pole

  • myc standardized length is 113" tip to tip

  • replacement tube, Forespar 2” x 9’4” – #184085 (cut to 113" tip to tip including end fitting)

  • End fitting, Forespar 304050, ps#278960

  • now, all ropes should be kevlar, order from layline

Parts Above Deck

Turning Blocks

  • Genoa sheet on track, old was Schaefer 505-82 - PS #165144 (these kept failing at car weld and were not able to be rebuilt), now change to Layline #LLBOS,
    57 m    m harken PS 200027
    1" slide 545012
    spring
    spring washer

  • Halyard turning block at deck, Harken #023 – #196162

  • Spinnaker pole topping lift turning block at deck, Harken #168 – #196295

  • Mainsheet block on boom, Harken #053 – #252718

  • Mainsheet block on traveler, Harken #002 - #113845

  • Spinnaker Sheet Turning block at aft pulpit, Harken 001 – #113837

  • Spinnaker Sheet Turning block at port stanchion, Harken 044 & 009 – #113910 & #348524

  • Spinnaker Sheet Turning block at starboard stanchion, Harken 044 & 009 – #113910 & #348524

Cleats

  • Mainsheet & Genoa Cleats, Harken 150 - #114652

  • Spinnaker Twing Cleat, Harken 238, consists of Harken cleat 150 with plate & bullseye + 15 degree wedge - #198804 & #244277 double check this item

  • Spinnaker pole topping lift cleat for red boats, Harken 240 – #244293

Stanchions Bases & Tubes

Stanchion bases and tubes have undergone many improvements and changes over the years.

For the bases, there is a new style (identified by 1 brace) and an old style (identified by 2 braces).  Because of the deck angle, there is a separate base for both the fore and aft stanchion.  With the new style, the forward stanchion base provides a 10 degree angle and the aft stanchion base provides a 15 degree angle (the old style was slightly different).

For stanchion tubes, many race J/24s are using 1 lifeline and a shorter height but we are using the standard system of 2 lifelines and the full stanchion height.  Order stanchions from Waterline systems. I had to ask and make sure they had a "nun" shaped head and two holes for lifelines. They have to drill and install a wear collar so I was encouraged to order a batch (12 I think, perhaps 10). They they can set up a jig etc.

Stanchion Bases

  • Stanchion Base (fore or aft) order from Waterline systems 401-682-1661

  • Stanchion backing plate

  • 4 Cap Screws – 18-8 Stainless Steel Hex Head, ¼”-20, 1 ½”

  • 4 Fender Washers – 18-8 Stainless Steel, ¼” ID, 1 ½” OD

  • Use White 3M 101 sealant

Stanchion Tubes

  • Order tubes with 2 lifeline holes, Schaefer #36-18, Port Supply #583973

  • order tube from waterline systems?

  • stanchion tubes need to be reinforced to prevent bending.  Use 11" length of stainless 18-8 3/4" rod, McMaster Carr #89535K32

  • in newer stanchions, locking screw is stainless 18-8, 1/4-28 x 3/16 set screw from McMaster Carr

  • in older stanchions, locking screw is stainless 18-8,

  • install set screws with locktite

 Lifelines

  • Lower - 231" total length of 1/8” vinyl covered - #131862 with toggle jaw in one end and single gate eye in other end

  • Upper - 245" of 3/16” vinyl covered - #131870 with toggle jaw in one end and single gate eye in other end

  • Life Line Adjustment Chord, 1/8” Dacron - #179259

Mainsheet Traveler

  • Traveler car Harken 172 - #

  • Windward Sheeting Traveler Car

  • End Stops for 155 high profile track Harken 264 - – #348458

  • Traveler bar - Layline

  • Harken bullet block #166, Port Supply #153734

Jib/Genoa Cars & Tracks

When installing any thru-deck fitting on jib car tracks, sufficient 3M 101 must be used.  Failure to use enough caulking can lead to water getting into deck, one of the biggest problems which could affect a J/24.

  • Jib Track, Schaefer #4042 - #196576 - get new info from Ken

  • End Stop for Track (silver) Schaefer #74-35-G -#196709

Halyard Turning Block Padeye

When installing, extra care must be taken when drilling holes through the deck.  These holes must be drilled perfectly straight.  Failure to do so will mean that the backing plate will not work.  Before installing padeyes, double check the length of the cap screws.  These screws should be the minimum length to allow the installation of the nut on the bottom side but not stick out beyond the nut once tightened.

  • Deck padeye plate, Schaeffer #78-01 - #129411

  • Deck padeye backing plate, Schaefer #97-51 - #129684

  • 2 Cap Screws – 18-8 Stainless Steel Hex Head, ¼”-20, 1 ¼”

  • 2 Washers – 18-8 Stainless Steel, ¼” ID

  • 2 Locknuts – 18-8 Stainless Steel, ¼”-20

  • Use White 3M 101 sealant

Rub rails

  • for cabin top where jib sheet meets,  3/4" x 6’ - Hamilton Marine #hmm-hos610

  • for bow, Hamilton marine, white is #DWP-460-RW, black is DWP-460-RB, 1.59 per foot

Lazarettes

  • Hinge

  • Hasp - use all-stainless (new as of 2004), Port Supply #131567

Rudder

The spacing and angle of the rudder gudgeons is unique to every boat.  When removing more than one rudder at the same time, it is essential the rudders are numbered and that the same rudder is reinstalled on the same boat.  If the rudder is not put back on the correct boat, the gudgeons will not line up perfectly and there will be friction, making the boat more difficult to steer.  Racing sailors require the rudder to be totally free moving without any friction in order to be able to feel the helm of the boat.  If a rudder has friction, the transom gudgeons should first be checked for possibly being bent.  If they are straight, the gudgeons should be completely removed from the rudder and connected to the boat with the pintels.  Then fill the old rudder gudgeon holes with epoxy.  Sand & paint.  The hang rudder in gudgeons on stern, drill new holes and install.

Gudgeons on Rudder

There are 2 gudgeons on the rudder, upper and lower.  The upper is shorter than the lower.

  • Heavy Duty Rudder Gudgeon Upper (Schaeffer #81-47) - Port Supply #252205 

  • Heavy Duty Rudder Gudgeon Lower (Schaeffer #81-48) - Port Supply #252213

  • 1/4 x 20, 2" bolts

  • 1/4 x 20 locknuts

  • no washers needed

  • use white 3M 101 sealant

Note: The lower gudgeons break on the boats occasionally.  There is no way to predict when a gudgeon will break except by inspection.  Occasionally, but not always, it is possible to identify a tiny crack in the gudgeon before it breaks.  This can only be done while the boat is out of water so every spring before launching, all lower gudgeons should be carefully inspected.

Gudgeons on Transom

Gudgeon assembly for transom of boat (4 total, 2 for upper pintel and two for lower pintel)

  • Heavy Duty Transom Gudgeon (Schaeffer #81-46)- Port Supply #252221

  • 1/4 x 20, 2 1/4" bolts

  • 1/4 x 7/8 in diameter washers

  • 1/4 x 20 lock nuts

  • Install bolts with white 3M 101 sealant

Notes: The gudgeons on the transom occasionally bend when a gudgeon on the rudder brakes (usually the lower gudgeon) and the rudder is still used even though attached by only one pintel.  This sometimes caused the upper gudgeons on the transom to be bent out of alignment.  You will notice resistance when inserting the pintel or when steering the boat.  If a transom gudgeon is bent, it must be replaced to ensure smooth operation of the rudder.

Rudder Pintel

  • Heavy Duty Gudgeon Pin (Schaeffer #81-49) - Port Supply #252239

  • use 1 1/8" rings to secure pintel in place

Tiller

  • Tiller J/24 – Port Supply #274241

  • Hiking stick, Ronstan #RF3129 fixed length 33 inch - Port Supply #1133131

  • Hiking stick hold down clip 1 1/8" - McMaster Carr #1171a73

  • Hiking Stick Universal Joints, Ronstan #RF3133, Port Supply #545335

Tillers must be cut to correct size (40"). 
Hiking stick should be set back from tip by 4 1/2".
Also apply 3 new coats of varnish to protect new wood.

Spinnaker Pole Downhaul Deck Padeye

  • padeye - Schaeffer 78-11

  • 4 10x24, 1 1/4" bolts

  • 4 #10 washers with 3/4 OD

  • 4 10x24 lock nuts

Dock Lines & Fenders

  • Bow line, pre-spliced white 3 strand nylon dock line, ½” x 15’- #367351

  • Bow chock for J/24 –  5”, rub stake 110215 – check again, may not be best fitting, Port Supply #188532

  • Stern line, New England double braided dock line blue, ½” x 25’- #5528625

  • Spring line – 3/8” red, 7 ft - #318636, (7ft in Manhattan, jc and hoboken are 12 ft but maybe special eye needs to be installed)

  • Spring Line Clip - Wichard 2481 - #116087, very expensive but will not break

  • Dock Buoy - 15" orange, Port Supply #161703 - old info Scanmarin Buoys from Hamilton Marine, 16" diameter, 50" circumference, PLM-NB50 orange, call Hamilton at 800-639-2715

Cunninghams

  • Cunningham hook – #163816

  • Top pulley, Harken 083, Port Supply #114298

  • 15 ft of white New England sta-set 3/16", Port Supply #121996

Winches

  • Primary winch for genoa, Lewmar 16A - #174714

  • Secondary winch for spinnaker, Lewmar 8A - #174698

  • Winch Handle, Holt Allen HA1221/L 8” handle - #229230

  • Winch Handle Holder, Ronstan Soft PVC RF6017 - #147934

  • Bill members $35.00 for lost winch handle

  • Lewmar Pawls, pack of 4, Port Supply #6356091

  • Lewmar Pawl Springds, pack of 10, Port Supply #6356109

  • Lewmar Circlips pack of 5, Port Suuply #6356117

  • Lewmar winch grease PS #248724

Compass

  • Plastimo Contest

Hatches

  • Foredeck hatch, Bomar G6995-1111 - #117905

  • Main companionway hatch slides order from Waterline Systems, $25 per boat

  • Screws for main companionway hatch slides #8 by 1"

Horseshoe Life Ring

  • Stern pulpit mounted holder - #314320

  • Life ring - #105767

Genoa hanks #1, 2” in length #115238

J/24 Electrical

Running Lights

Now lights - we now have updated to perko 0963dpochr, ps#257139.  These have a steel top which is screwed into the deck and can withstand the movement at the bow. 

Previously, we were testing Aqua Signal Series 22.  These were not strong enough to withstand the movement on the bow and the tops kept coming off.  Do not use any more of these and change over the perko.

We will still use the aqua signals on the stern which are bright and not subjected to movement.

  • bow - perko 0963 dpochr, port supply #257139

  • stern - aqua signal series 25  25500-7. (PS #174375)

  • bow replacement bulbs, PS #4810883

  • stern replacement bulbs, PS #4810636

interior lights replacement with ps#298168

waterproof ring terminals for battery connection - 16-14 guage, 5/16" hole diameter, PS#362510 (25 pack)
10 amp fuses for electrical panel, PS#124115 (5 pack)

Parts Below Decks

Cooler

The coolers should be cleaned and inspected on a weekly basis.  When noticed, any broken parts should be replaced immediately.  Clean and properly operating coolers are a significant quality of life issue for sailors.

  • Handle/Bracket - Port Supply #329600

  • Hinges - Port Supply #332398

  • Lid Strap - Port Supply #463101 (for inside of cooler, prevents lid from opening too far)

  • Drain Plus - Port Supply #526923

  • Latch - Port Supply #332422

Cabinets

  • Hinges - brass offset Port Supply #545608 (sold in pairs)

  • Ball & Socket Catch - Port Supply #177055

  • Pull handle, 3 5/8" length - Port Supply #342669

  • screws

  • washers

  • nuts

Anchor & Line

  • Anchor, Tie Down Engineering, Hooker 3 lb 95030, Port Supply #390841

  • Anchor rope & chain package, 100ft 3/8" rope, 10 ft 1/4" galvanized chain & shackles, port supply #377598

Sound Producing Device

Over many years, the club has tried to provide a variety of horns on the boats.  However, all types of horns have proven a consistent maintenance issue, either disappearing or breaking.  We are required to provide a sound producing device on the boat and this should be used when exiting the marina.  Beginning in 2005, we are changing over our system to install a storm whistle which will be permanently mounted to the aft pulpit.  This whistle will produce a loud sound sufficient for warning traffic when departing North Cove and for signaling out on the water.  Skippers are also encouraged to bring their own personal horns (just like they bring their own VHFs) when sailing if they wish a more traditional sound producing device.

  • Storm safety whislet, Port Supply #533851

Bilge Pump

  • Beckson Thirsty Mate 118PF - #103838

  • Flares

  • Pump

  • Bucket, 2 1/2 gallon capacity, McMaster Carr #4485T11 in red

  • Lifejackets

Greyhound Items

Greyhound spark plug br9hs-10
Racor filter for greyhound, 53227, PS #507525
Spare springs for clips - stainless, 5/32, mcmaster carr #1986k1, then cut to length
clips for greyhound fenders, 3 3/4" length, swivle, nickle coated, port supply #246357
 buoys for greyhound are PLM-NB60 black from hamilton marine, order online

Engine

Garelick Mfg, 651-459-9795, outboard brackets & springs, 644 second st, st paul pk, mn 55071, annette,
yamaha engine paint tempo 020469 yamaha marine metalic silver - #100430
j/24 spark plugs, NGK B7HS-10, port supply #282558
yamaha parts at parts@boats.net -
steering handle, new number, 6m8-g2111-11-4d
new bolt for steering handle, 97095-06020-00
new washer plate for new bolt - 90202-36M55-00
Bolts for lock down 5/16" - 18 x 6", Hex Head Cap Screw 18-8 Stainless Steel, McMaster Carr part # 92198A708
gas can replacement cap with gauge Tempo #280170, PS#184564

Misc

Eldridge Tide Book Port Supply 6821649
Locktie - McMaster Carr 91458a14
White duct tape 2" McMaster Carr nuclear grade - 7612a93, $17.59 each 2008
Silicone, dow 732 white, McMaster Carr - 7587a35, $3.52 each
Key-alike brass locks - McMaster Carr, 1557A26
Marine Toilet Paper - Port Supply #3742285

Inflatable Life Vest Rearming Kit

PS #5328869, full kit,  just bobbins #251829

25W replacement bulbs for aqua signal, greyhound and willie wall, 4810834

teak & holly plywood for cabin sole - Atlantic Plywood, Bob, 877-672-3070, Rutherford, NJ, ½”, Fax: 201-933-6149
Cushions for J/24s – Kinder Industries, 401-253-7076, Philip, $250.00
Layline 800-542-5463 www.layline.com
Hall Rigging - 800-283-1964
Oyster Bay Boat Shop - 516-674-8008
Charleston Spars 704-597-1502, Jim, handles j/24
US Watercraft, Waterline Systems - Skip or Mike 401-683-1661 skip@uswatercraft.com, rope lockers $300.00
McCarthy Outboards - 732-528-8200, referred by Lockwood

Tapping Holes

10x24, use drill No. 25 or 5/32"
10x32, use drill No. 21 or 5/32"
1/4x20, use drill No. 7 or 13/64"
As you turn the tap, it cuts into the metal and starts to lead into the hole.  The metal chips flow into the flute spaces and will cause the tap to turn hard unless the chips are broken.  The chips are broken and the pressure on the tap is released by reversing the tap direction every 1/4 or 1/2 turn.

Signs

for boats, 6" high Helvetica letters, regular, not bold, info@needsigns.com, 908-362-6100, Ed Smith at Sign Language, Ed or Dave

Sail Repair

Always have at least spare mainsail, genoa and jib stored on hand to replace sails which need to be sent to sailmaker.

  • Put sail in cardboard box. 

  • Include a note specifying exactly what we want done. 

  • Include who we are and where we want to sail sent to us when finished. 

  • Estimate weight. 

  • Estimate dimensions of box. 

  • Put label on box with return address.  Send to: North Sails N.J., 2422 Rt. 34 North, Manasquan, N.J. 08736, Ph: 732-528-8899 Fax: 732-528-6565

  • Protect label with packing tape so address can not be rubbed off.

  • Call UPS for regular ground shipping. 800-742-5877

  • Pay for shipping with credit card.

  • Have pick up from 385 South End Ave #7G

  • On day of pick up (not before), bring to doorman at 385.

If you get updates to this shipping process (new technology for shipping labels with UPS or anything else), please give to Michael.

 

 

© copyright 2008 by Manhattan Sailing Club