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https://www.facebook.com/10006355543...ibextid=cr9u03
Get yours today!!
www.precisionsonar.com
Not knocking The Leash.... but I'm wondering where it would have been secured to that would have prevented the "unplanned engine relocation" event in the facebook post?
The "aft" plate and hydraulics of the jackplate are still attached to the engine in the images. It had to take some serious forces to peel that plate apart like that!
I'm thinking something was wrong with the plate. It doesn't look like the lower is broken. IIRC all of the pictures I've seen of peeled back engines had broken lowers.Quote:
Originally Posted by EuropeanAM
If I had a fast boat I'd have "The Leash" on it.
I have been researching anchor points of the Leash including asking questions & sending pictures to Precision Sonar as outlined in post 103 in General Bassboat Topics. The Leash. While it would protect occupants from a broken MOTOR bracket, on a Pro Xs 4 stroke, due to where it anchors would not have prevented the situation as posted in this thread. Recommend looking at same videos, pictures & installation video that i did to make your own conclusions. Not trying to knock the Leash either, as as i already said , it would protect against a broken MOTOR bracket, but not JACKPLATE failure. Post 85 of that same thread shows how Rex Chambers' version was done after his incident, but as per Precision Sonar, that version is no longer available & they do not offer one long enough to duplicate that installation referenced.
I agree that this device very well might save your noggin (literally) in some situations. That being said- the force that was required to literally bend and peel that jackplate's side brackets (and loops) open lead me to believe that there were multiple components damaged in the event.
If the engine OEMs thought this was a real issue they would have addressed it by now.
You're right, Mike. Many of the cases we've seen over the years involved transom brackets that were sheered right through the (used) mounting bolt holes, often due to incorrect or loose mounting hardware, further complicated by other devices being attached to the mounting hardware.
Mercury Service Bulletin 2013-15R1 specifically addressed these concerns, and clearly indicates that absolutely NOTHING should be mounted to the engine mounting fasteners other than the engine. This would include any auxiliary brackets meant to secure straps, fasteners, cables, steps, brackets, wedges, etc.
Engine OEM's are not likely to address jack plate issues.Quote:
Originally Posted by mikesxpress
Engine OEMs are also not likely to add a highly visible strap to catch their outboard if it breaks off and tries to flip into the boat.
They do not want to be selling boats or drives with a visual admission the outboard might break off, fly into the boat and kill you.
Plus they might have to retrofit tens of thousands of drives as well.
There are numerous other ways to address the hazard from a design standpoint that make the outboard more resistant to breaking off, several of which have been patented by engine manufacturers, but are not currently in use.
However, as boats get faster, outboards get heavier, and objects being struck become larger, heavier, and more solid, eventually you have to turn to some version of a tether or a physical barrier.
It would be also be good to automatically turn the engine off when the outboard breaks off, turns upside down, etc..
gary
Sorry but I didn't even read past "40 MPH in a creek channel" in the Facebook story. Know your water, bud.
I'm in full agreement with Don on this subject.Quote:
Originally Posted by EuropeanAM
I also commented directly to the FB post that was supporting the leash that his chosen picture was miss leading. Pic of motor with lower unit removed, very mis leading when the skeg had been broken.
Again, if you understand how to properly operate a boat, this is an unnecessary product. Navigation is fairly simple: IF you do not have a clear picture of the water you are about to enter, slow the F*** down. There, lives and dollars saved. Anyone disagree?
I do. Sure there are situations that require prudent operation, however, it would be impossible to know where a hidden hazard could be at all times.Quote:
Originally Posted by JS!
My question is will the leash actually work? Are there any cases where a motor departed and the leash held and kept it out of the boat? What testing has been done on the leash to ensure it will stand up the the same forces that ripped off the motor in the first place?
the leash is only designed for swivel bracket failure only let me repete swivel bracket only in no way would it helped in the above photos .
Precisely Don's point in reply #2.Quote:
Originally Posted by hickend69
The problem in the pictured incident is the plate apparently slid up and out of the tubes on impact. This had been addressed by plate manufacturers with a mount inside the plate that would limit upward travel in the event of an impact. Obviously, it didn't work in this incident or it was not present. The leash could have restricted upward travel of the motor out of the tubes and even though it might not have stopped it, it sure seems it could have limited it. It seems to me that anything you can do to limit the possibility of motor separation, the better.
Like this.Quote:
Originally Posted by hickend69
https://texasfishingforum.com/forums...227_114838.jpg
look at the wood on the lower and blood on the prop?
I would agree that the leash might well have limited/held this one from coming into the boat. It would have (at the very least) been the last line of defense.Quote:
Originally Posted by fishnfireman
That's just sickening- especially considering the forces required to do that extent of damage.
I run one. Do I know for sure it would prevent this from happening? No! I don’t know for sure a seat belt would save my life in a care crash either but I still wear one. This is the only option that offers some peace of mind for now. Leash needs to publish post accidents of leash customers and how they faired.
Looks like manufacturers need to look at lower unit bolts that shear under a specific force.
No thanks... planned gearcase ejection probably would have some seriously undesirable consequences as well.Quote:
Originally Posted by bloodman
Best thing to do: SLOW DOWN when you don't know what you're running in!
Just a thought. I'm not an engineer but there has to be a better way. Underwater objects can be anywhere.Quote:
Originally Posted by EuropeanAM
I was answering 06sb question that don did not in his post the man asked in what cases would the leash work and the answer and only answer the way the current mount is constructed and location like mine is the swivel bracket only period just trying yo answer the man’s question
I think everyone is agreement with this.Quote:
Originally Posted by hickend69
+1
Swivel bracket, Tilt cylinder, steering tube, or in some cases, possibly transom bracket failures would be the ones that might be applicable.
But to reiterate: Directly from the engine owner's manual:
https://www.bbcboards.net/attachment...8&d=1677696767
Don what is Mercury Marine's position on attaching anything between the flat washer and locknut used on the 3/4" bolts that retain the outboard motor bracket to a jack plate or transom? The installation instructions for this product show removing the washer/locknut, adding the Leash tether bracket, and reinstalling the flat washer/locknut.
https://youtu.be/wTYjbxM9b68
*I'm sure that most folks know once you remove a locknut with the Nylock insert you don't reuse that locknut. It must be replaced.
Sure, glad I didn't know that---- I'd have gone broke buying prop nuts.:eek:Quote:
*I'm sure that most folks know once you remove a locknut with the Nylock insert you don't reuse that locknut. It must be replaced.
Specifically prohibited. Nothing but the ENGINE on the engine mounting hardware.Quote:
Originally Posted by mikesxpress
Just wanted confirmation. Thank you.
I'm awaiting official opinions on attaching this device to various brand jack plates.
Does that include Power poles and engine spacers?Quote:
Specifically prohibited. Nothing but the ENGINE on the engine mounting hardware.
While this is true for most leash installations you see, there are other options for mounting. My boat had a leash on it when I purchased it as well as the same atlas hd plate as what failed in the original post. The leash on my boat is actually bolted to the side plates on the jackplate. I think this is likely a better mounting solution since it keeps the leash off the motor mounting bolts and provides some level of protection for jackplate failures as seen in this thread.Quote:
Originally Posted by fishnfireman
Jesse can you provide a couple pictures of your mounting please?
More food for thought on the Atlas.Quote:
Originally Posted by jdskeeter
Quote:
the failure point was first the piston. When that fails, without a Leash, it allows the motor to freely swing forward. Once that happens the motor has enough leverage to pull the plate out of the jackplate bracket. The purpose of the Leash would be to grab the motor after the piston fails and pull it down before getting enough leverage to pull the plate out.
Absolutely, I’ll take a few pictures this weekend.Quote:
Originally Posted by mikesxpress
Well, I was looking at the thread in the general bass boat topics forum, and my installation is nearly identical to those in the pictures on page 5 of that thread (linked below). Several folks say that version of the leash is no longer available, I missed where that was mentioned in this thread as well.
https://www.bbcboards.net/showthread...1210206&page=5
On my 2016 the leash was mounted on the side of the jack plate where the power pole brackets get attached. I haven’t seen it setup like that since and I would say I bought mine in 2017ish. I think once the leash became a precision sonar product they changed the mounting points and started selling the brackets to attach to the outboard motor bolts on the jackplate.Quote:
Originally Posted by jdskeeter
Show me the tests that shows this leash stops the outboard from flipping into the boat and I will consider buying one. Until then it's just a gimmick in my opinion. Would you buy a motorcycle helmet that wasn't certified ? I baby car seat that wasn't tested ? So why buy this ? Because in theory it will work? I'm good .... facts over feelings fellas.
If there were no such thing as a certified helmet would I still be stupid for buying whatever helmet I could find or smarter for going with nothing on my head?Quote:
Originally Posted by Bass_boat_boy
Maybe?