Mainsail Track on mast

  • November 15, 2022 1:01 PM
    Message # 12990444
    Deleted user

    Hello Bud,

    My W32 Number 085 "Immamou"has a track for harken cars for the mainsail. The track is fixed with  stainless steel countersunk machine screws about every 5 inches up the mast. Hauling the mainsail up last year I found one screw missing and one had protruded such that the mainsail jambed on the mast and with difficulty I managed to lower the sail.. The question I have is, can the screws corrode on the mast then fail?  The tread on the protruding screw was gone as the screw was loose in the mast and must've  shaken out to jamb the sail up the mast. Do I need to remove the track and refit it by drilling and re-tapping the holes and, moving it slightly to a new position? The thought of not being able to lower the mainsail doesn't bear thinking about!  I had a friend haul me to the masthead and checked each screw for tightness and found all the others OK. I'd  be really grateful for your advice

    Kindest Regards

    John Pound

  • November 18, 2022 5:12 PM
    Reply # 12995118 on 12990444


    Simply drill and tap a hole close to the one with the loose screw and install a new fastener.  Then put a touch of caulk on the open hole, or just push the old screw thru the caulking.

  • November 18, 2022 5:17 PM
    Reply # 12995119 on 12990444


    Also use some material on the thread before you install it.  never-seize or one of those recommended by the mast manufacturers.

  • November 19, 2022 2:51 AM
    Reply # 12995381 on 12990444


    This works great too and not too messy. Has a little brush

    included so one can get the anti seize into the threads of the 

    newly tapped hole .

    Ver best,


    S/V Cadence W42