Kiwiboyd's Mercury Bolts fail (initial assessment)

[willk]

lulz

Ya gotsta be judicious when selecting peeps to let loose with a camera on a new boat.

Shoulda let the Flying Test Monkeys handle it....

http://www.rib.net/forum/f16/rendezv...tml#post460975

[jwalker]

Well, he's pretty much come clean on the engine install issue though I'm not sure a 'second set of eyes' would have noticed the issue. Perhaps I picked it up wrongly but if I'm understanding correctly from the video, they fitted imperial nuts to metric threads.

[beamishken]

Originally Posted by jwalker

Well, he's pretty much come clean on the engine install issue though I'm not sure a 'second set of eyes' would have noticed the issue. Perhaps I picked it up wrongly but if I'm understanding correctly from the video, they fitted imperial nuts to metric threads.

Hmm I wouldn't be buying that explanation, usually metric and imperial mixed either bind up after a couple of threads or wind down so slack any monkey would notice the error and they would be likely to strip if torqued correctly.
My money would be on plain lock nuts being put on and not locked together or someone forgot the locknut altogether

[breezeblock]

1/2 unf nuts would go over m12 fine quite easy I think its quite possible but an engineer with 1/2 a brain cell would have twigged straight away

[69cmw]

There is a video on YouTube now of the guy finding the engine and getting it back to surface and then to the workshop

[gpsguru]

https://www.youtube.com/watch?v=rbzk42XW4ik

[two stroke mick]

Having watched the videos on this incident I think that Boyd has handled the matter well..

[kiwiboyd]

I have refrained from posting a response on youtube, there are too many arm chair captains, but here on RIBnet, there is a civil discussion.

This Fluid was engineered from the keel up, with any boat like this, there are excessive loads and there will be fail points. Unfortunately ours were from stripped nuts due to a miss match of different manufactures bolts. An error in our rigging dept. I did not rig the boat personally, but I do own the company, so it's my responsibility. A $25,000 loss hurts me as much as the next guy. We were 2 miles offshore and the closest inlet was 15 miles from the incident, the water is 100+ feet deep. For personal safety and further damage to the other engine, which would of left us stranded, the choice was to free the engine. Last Sunday we have a dive team retrieving the engine. The boat has full safety gear, EPIRB, First AID, Flares, fire extinguishers, tool box, dock lines, fenders, Life jackets, bucket etc....My son on the boat was wearing a PDF and we were all wearing seat belts, most boats don't have seat belts,this is not your traditional Sunday afternoon RIB. My son is kart racer, and runs his own kart at 60 mph. He has spent more time on the water than most kids, trips to the Bahama's on similar RIBS, he is no stranger to an adventure.
What is also not shown in the video, was system isolation, fuel shut off prior to releasing the engine, and then hull / tube / engine check after incident.

This is what my kid does...and he kicks my ass
https://youtu.be/lQAuH0P-rvM

[zip]

Glad no one got hurt.

[Last Tango]

Originally Posted by kiwiboyd

I have refrained from posting a response on youtube, there are too many arm chair captains, but here on RIBnet, there is a civil discussion.

This Fluid was engineered from the keel up, with any boat like this, there are excessive loads and there will be fail points. Unfortunately ours were from stripped nuts due to a miss match of different manufactures bolts. An error in our rigging dept. I did not rig the boat personally, but I do own the company, so it's my responsibility. A $25,000 loss hurts me as much as the next guy. We were 2 miles offshore and the closest inlet was 15 miles from the incident, the water is 100+ feet deep. For personal safety and further damage to the other engine, which would of left us stranded, the choice was to free the engine. Last Sunday we have a dive team retrieving the engine. The boat has full safety gear, EPIRB, First AID, Flares, fire extinguishers, tool box, dock lines, fenders, Life jackets, bucket etc....My son on the boat was wearing a PDF and we were all wearing seat belts, most boats don't have seat belts,this is not your traditional Sunday afternoon RIB. My son is kart racer, and runs his own kart at 60 mph. He has spent more time on the water than most kids, trips to the Bahama's on similar RIBS, he is no stranger to an adventure.
What is also not shown in the video, was system isolation, fuel shut off prior to releasing the engine, and then hull / tube / engine check after incident.

This is what my kid does...and he kicks my ass
https://youtu.be/lQAuH0P-rvM

Absolutely the right thing to do.

Safety of crew and boat first....go back for what's left of the engine when you're properly equipped and manned to deal with it.

[Bigmuz7]

Originally Posted by kiwiboyd

I have refrained from posting a response on youtube, there are too many arm chair captains, but here on RIBnet, there is a civil discussion.

This Fluid was engineered from the keel up, with any boat like this, there are excessive loads and there will be fail points. Unfortunately ours were from stripped nuts due to a miss match of different manufactures bolts. An error in our rigging dept. I did not rig the boat personally, but I do own the company, so it's my responsibility. A $25,000 loss hurts me as much as the next guy. We were 2 miles offshore and the closest inlet was 15 miles from the incident, the water is 100+ feet deep. For personal safety and further damage to the other engine, which would of left us stranded, the choice was to free the engine. Last Sunday we have a dive team retrieving the engine. The boat has full safety gear, EPIRB, First AID, Flares, fire extinguishers, tool box, dock lines, fenders, Life jackets, bucket etc....My son on the boat was wearing a PDF and we were all wearing seat belts, most boats don't have seat belts,this is not your traditional Sunday afternoon RIB. My son is kart racer, and runs his own kart at 60 mph. He has spent more time on the water than most kids, trips to the Bahama's on similar RIBS, he is no stranger to an adventure.
What is also not shown in the video, was system isolation, fuel shut off prior to releasing the engine, and then hull / tube / engine check after incident.

This is what my kid does...and he kicks my ass
https://youtu.be/lQAuH0P-rvM

Well I havent posted on RibNet for donks .. but Ive been following this on youtube for a while .. I appreciate the predicament you are in Kiwi and looks like a professional response to me from what Ive seen ...shit happens .... and as you said you are pushing the envelope 4 bolt 6 bolt mount ? will the submerged engine ever be the same ? maybes best given away as you did..hope honesty is prevalent when sold on though

[jambo]

[QUOTE=Bigmuz7;793539]


Well I havent posted on RibNet for donks ..


And you have been missed. Hope all is well with you? J

[Bigmuz7]

[QUOTE=jambo;793547]

Originally Posted by Bigmuz7

Well I havent posted on RibNet for donks ..


And you have been missed. Hope all is well with you? J

Yes it is mate.. thank you .... I shall need to up the ante with some more interventionist content I didnt even gloat about retaining the Calcutta cup ? .. but thats for another thread

[refugio]

Am I the only one horrified by that close pass at the 1 minute mark after exiting the channel? Is this some special place where COLREGS don’t apply?

[Poly]

Originally Posted by refugio

Am I the only one horrified by that close pass at the 1 minute mark after exiting the channel? Is this some special place where COLREGS don’t apply?

As I recall the Colregs don’t define a safe passing distance. It’s very difficult to judge distance on video so hard to say how close it was. If the skippers knew each other and were playing in each other’s wakes it doesn’t seem that close to me - you’d see similar every weekend of the summer in the Solent. Was I horrified - no; would I pass that close at that speed - no.