Reversing assembly on Elm Street

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • duncan59
    • Apr 2024

    Reversing assembly on Elm Street

    Dear forum members,
    I have been trying to get my reversing assembly right since last September. It all started to go south when I was trying to reverse and drive my anchor into the bed out at the Channel Islands in California. I got a horrific whining and engine dying. I also bust my head gasket at the same time and just sailed home without engine at all the next morning.
    FORWARD:
    Many months later, after a general overhaul and much futzing around, I found the true spot for my forward gear that gave a) solid thunk of detent, and b) about 5 knots of speed on the water. Having got into some nasty weather and having to be towed home (because I had only about 1.7 kts in forward) I finally felt.. Ah, how satisfying! Meanwhile I also had a "good enough" reversing situation to know that if I teased into the slip and hauled on the whining reverse I had a 50/50 chance of not crashing into the dock box.
    REVERSE:
    Sadly, it only took another day on the water or two before my reverse took over the whole procedure. I was moving my boat up the coast 40 miles from Oxnard to Santa Barbara that day and as I pulled out of the slip with my new, charming Swedish milk-maid crew-member I realized that all I had was reverse, and now at quite a heady clip! Embarrassment aside, I swung a few wide figure eights around the harbor until I found my new helmsmanship in reverse and then my Swedish lovely friend gamely took the wheel and throttle as I jumped off and grabbed the rail and we made it back in to the slip. I popped the gearbox plate off and found that the roller had broken off the reversing bolt, which now clattered away uselessly. Why it was stuck in reverse, I do not know, but after I put it back together (with no reversing bolt in place) we were now able to get only forward gear. This would get us to our destination, with fun and slip games to be had in my new downwind slip.
    KAMINSKY MOD:
    When I got to Santa Barbara, I did the only decent thing, I bore a hole in the side of the reversing assembly box, (and adjacent bulkhead, naturally) and removed and replaced my new reversing band bolt. I slowly adjusted until I recognized the approximate place where forward gear releases and pulling back tightens the reversing band. I maintained the same forward notch on the collar as I still wanted my five knots of fun.
    DISASTER SMILES ON OUR FOOLISH SCHEMES:
    Sadly my reverse was only "piss-poor" as my grandfather would say, no matter how many times I adjusted it. And I adjusted it about 15 times. I got three options. a) It died a death when I put it into reverse, with the hopeful appearance of going backwards and then a loud "THUNK" and the engine died. b) There was no reverse at all, ("sorry we are ignoring your request for reverse, reverse does not exist on planet Atomic Four, there is only forward.") c) There is kind of reverse, but it is so weak that you have to really watch the propshaft to be sure it is actually vaguely turning anti-clockwise, and barely any movement backwards. More of a neutral + milktoast, really.
    SAD ENDING:
    For some reason, after the last time that I got the deadening "THUNK" and the engine died, my forward would not get into the forward detent. I loosened the forward adjusting collar a few notches, nothing. I tightened it, nothing. I lost my notch place altogether (the collar spins if you don't control it very carefully) but I still have no forward detent in the groove, I have no idea where reverse is, I cannot get neutral or reverse and I think I am getting some kind of forward though I don't know how. (when I push the lever into forward, there is a metallic clunking against metal as if something has reached its limit. Oh, and I cannot prize the three fingers open.
    QUESTION:
    Beyond the adjustable forward and reverse mechanisms, is there something else that could be binding or preventing working of both gears? What happens when the gear wheels and pinions and whatnot gets funky? Do they sieze or bind or foul up or something? Could it be aft of the gear mechanism? Or is it time to spend the ghastly $90 per hour and get a mechanic here (from an hour south, mind you) because something is wrong? I must have had that lid off the reversing assembly 100 times over the past 9 months. I have tightened and loosened and adjusted and linked and unlinked that system of bands, bars, pins, springs, retaining pins, collars and levers. Please hit me with a hammer and take my wallet. I'm toast. (or enlighten me with your higher understanding).
    Last edited by Guest; 07-05-2008, 09:50 PM.
  • SEMIJim
    Senior Member
    • Oct 2007
    • 129

    #2
    Geez, and I thought we had problems.

    If you don't have one already, I suggest a copy of Don's reversing gear video. Well worth the cost, IMHO.

    I'm no expert, but it sounds to me like it's time for a new reversing gear for you. Don't feel bad: We may be facing the same with our boat.

    Jim

    Comment

    • Don Moyer
      • Oct 2004
      • 2806

      #3
      Before giving up, I suggest you remove the turnbuckle at the engine shift
      lever and see what kind of control you have using the lever itself. Most of
      your symptoms could be explained by a badly adjusted cable assembly.

      At this point, however, you may have to go back and adjust the shifting
      mechanism in the engine itself, since you seem to have lost a bit of your
      frame of reference in terms of where things were when your problems began.
      I'm attaching the adjustment procedure in case you don't have the latest
      version handy.

      Congratulations by the way on accomplishing the Kaminsky mod with apparent
      ease.

      Don
      Attached Files

      Comment

      • superdave474
        Senior Member
        • Jun 2007
        • 56

        #4
        reversing gear

        Duncan,
        I sent a PM but thought I would post something here in case it gets missed. I have used Steve Vukas in Santa Barbara before, he took good care of my A4 before I removed it for rebuilding. I don't have his number, but I've got his partner's if you would like it. I also have the reversing gear video that I would be willing to loan you, if you are still in SB.
        David

        Comment

        Working...
        X