Boat pornography

Not sure drinking rum and driving fast power boats is a good combination, in our poker runs the drivers and passengers are not allowed to drink during the run as you want everyone to have their wits about them. I've driven in several runs and at 60knts with boats in front, behind and either side you want full concentration from all drivers. We had a an incident a couple of years ago when a guy in a brand new twin engine monohull passed behind the Princess 95 which was the escort vessel and he didn't realise how much wake there was, the boat was thrown up in the air at around 60 knts and landed upside down, the passengers managed to get themselves out but he was trapped underwater for a few minutes while other drivers dove down to try to free him. We got him out, but he was in a coma for several months and gradually made a recovery, he no longer takes part in these events. If the people were under the influence in such situation things could have been a lot worse.
 
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spannerman said:
If you can help that would be great and I will try to upload the clips I have.
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There are several options, but since you mention clips, Youtube is the way to go, I reckon.
And since you are asking, I assume you don't have you own account and never uploaded anything on it, correct?
If so, in a nutshell the process is as follows:
1) creation of your own youtube account
2) upload of your clips
3) link them in a forum post, using the syntax "[yοutube]11 digits code of your clip, as assigned by youtube after uploading[/yοutube]"

None of the above is rocket science, and I can explain in more details the steps 1 and 2 (3 being hopefully already clear enough), if you're interested.
Otoh, if you don't think to use youtube in other occasions, and/or you don't want to bother with the registration, I don't mind sending you a pm with the password to my own account.
That's the simplest option: you can then just login and upload your clips, and once you're done, I can take care of posting them here.
Pick your poison! :)

@BruceK: some great videos, thanks for the positively pornographic addition!
Needless to say, MTI is also up there among my favourites insane boatbuilders... :encouragement:

@AndieMac: I'm afraid no long trips planned for this winter C, we're assisting my mother in law with her health troubles. :(
Otoh, spending another winter down under is for us just a matter of when, not if!
Among other things, the last time we were there I got in touch via email with another insane builder, albeit of stuff meant for roads, rather than water.
You might remember him, because it's another chap well known to you (hint: he crashed a Ferrari in a Targa Tasmania!) who told us about this New Zealander, while we were enjoying his hospitality.
I wanted to visit that guy while we were in NZ, but Oamaru would have taken us a bit too far from our route, so that's one of the things still in my bucket list.
Here's a video about that folk and what he builds, after all it's not really o/t, in a thread like this...! :cool:
 
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I don't think the participants are imbibing, just the people at the venues. They are quite strict on certain things in the BVI, one being no PWCs allowed. I think drunken cigarette drivers are several levels past that!
 
MapisM said:
For the records, the blocks in Seven Marine O/Bs are GM/Cadillac V8 supercharged, 6+ liters IIRC.
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And the crankshafts are horizontal, with the gearbox just under the block not down in the lower unit. MYAGs are the 627hp version not the 557s shown above
 
This is taken directly from the Mercury Racing manual,

Every 3 hrs : Check levels for- Engine oil, Power Steering, Transmission, Supercharger. Check drive oil, power trim oil,
and prop.
25 hrs : Change engine oil and filter,, check seawater pump oil level.
50 hrs : Check all hoses, clamps, linkages, wiring, belts, and exhaust system. Lube all splines on driveline, check
torque on all drive and steering and gimbal fasteners.
100 hrs : All 25 and 50 hrs checks, change supercharger oil, check compressions, replace PCV valve, clean engine
and power steering coolers, check engine alignment, change transmission fluid, check internal and
external exhaust shutters, replace fuel filters, inspect seawater pump and replace impellors.
Drive : all 25 and 50 hrs checks. Change drive oil, change transom input bearing oil, inspect bellows and
clamps, examine all rotating parts for wear and replace as required.

As you can see its quite labour intensive compared to normal boats, impellors didn't normally make it to the change interval as the boat frequently gets airborne and if you are not quick on the throttle they run dry and are knackerd, we always carried several onboard, and it wasn't fun standing between the front of the engine and bulkhead and working in a very tight spot with a redhot 1200 hp engine trying to replace the impellors, yes there were 3! in a stacked pump arrangement. The smaller 900hp engine just had one.
The engines ran straight into a gearbox which gave you forward and reverse, then a short propshaft with U/J's each end to the transom which had a jack shaft which had is own oil, then on the other side was the drive input shaft with two U/J's going into the NXT drive which is direct drive, no for/rev gears.
I had all 4 engines out of the Nortechs at varying times and several gearboxes and drives off and split for repairs, also transom input shafts out to replace bearings. I will try to post some pics.






scubaman said:
I've heard of the quite strict maintenance schedule with these boats, but that's just amazing. Can you give us a rough description of what is done every couple/ten/fifty or so hours, please?
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This is my first attempt at posting a video clip its a Nortech starting up on our quay. Not sure how you do the link thing so you just click on it, I am embarrassed to admit I'm not too good at PC stuff unless its connected to an engine!

Youtube huEQ-hWyatE
 
no link. Was this the one?


if so copy the URL and place between the video tags. Using [ instead of " "video=youtube;huEQ-hWyatE]http://www.youtube.com/watch?v=huEQ-hWyatE[/video"
 
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BruceK said:
if so copy the URL and place between the video tags. Using [ instead of " "video=youtube;huEQ-hWyatE]http://www.youtube.com/watch?v=huEQ-hWyatE[/video"
Click to expand...
Nothing wrong with the "video" tag, I often use it myself, but I'd rather suggest anyone unfamiliar with this stuff to try the plain vanilla "youtube" tag first.

In this case, spannerman could have just typed in his post the following text:
[yοutube]huEQ-hWyatE[/yοutube]

Obtaining this as a result:


Btw, great sound indeed, thanks spannerman for the very appropriate addition to this thread.
Just curious, when you mentioned the NXT drive, I suppose you meant the original one, recently dismissed by Mercury and replaced by the NXT6?
I'm asking because as I recall the NXT was meant for up to 700hp engines, whereas the #6 was meant for higher power (till they introduced the M8 with the turbo engine).
No wonder that you blew several g/boxes and drives, with 1200 ponies each side! :eek:
 
Poker Run in Stavanger 2012, Jotun Team Formula 1 start up.
Mapism whats an easy way to post pics as youtube is only for video clips.

 
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spannerman said:
This is taken directly from the Mercury Racing manual,

Every 3 hrs : Check levels for- Engine oil, Power Steering, Transmission, Supercharger. Check drive oil, power trim oil,
and prop.
25 hrs : Change engine oil and filter,, check seawater pump oil level.
50 hrs : Check all hoses, clamps, linkages, wiring, belts, and exhaust system. Lube all splines on driveline, check
torque on all drive and steering and gimbal fasteners.
100 hrs : All 25 and 50 hrs checks, change supercharger oil, check compressions, replace PCV valve, clean engine
and power steering coolers, check engine alignment, change transmission fluid, check internal and
external exhaust shutters, replace fuel filters, inspect seawater pump and replace impellors.
Drive : all 25 and 50 hrs checks. Change drive oil, change transom input bearing oil, inspect bellows and
clamps, examine all rotating parts for wear and replace as required.

As you can see its quite labour intensive compared to normal boats, impellors didn't normally make it to the change interval as the boat frequently gets airborne and if you are not quick on the throttle they run dry and are knackerd, we always carried several onboard, and it wasn't fun standing between the front of the engine and bulkhead and working in a very tight spot with a redhot 1200 hp engine trying to replace the impellors, yes there were 3! in a stacked pump arrangement. The smaller 900hp engine just had one.
The engines ran straight into a gearbox which gave you forward and reverse, then a short propshaft with U/J's each end to the transom which had a jack shaft which had is own oil, then on the other side was the drive input shaft with two U/J's going into the NXT drive which is direct drive, no for/rev gears.
I had all 4 engines out of the Nortechs at varying times and several gearboxes and drives off and split for repairs, also transom input shafts out to replace bearings. I will try to post some pics.
Click to expand...

Why not install equivalent of fuel swirl pot to supply a few seconds sea water to engines if boat goes airborne? Would that work?
 
spannerman said:
This is taken directly from the Mercury Racing manual,

Every 3 hrs : Check levels for- Engine oil, Power Steering, Transmission, Supercharger. Check drive oil, power trim oil,
and prop.
25 hrs : Change engine oil and filter,, check seawater pump oil level.
50 hrs : Check all hoses, clamps, linkages, wiring, belts, and exhaust system. Lube all splines on driveline, check
torque on all drive and steering and gimbal fasteners.
100 hrs : All 25 and 50 hrs checks, change supercharger oil, check compressions, replace PCV valve, clean engine
and power steering coolers, check engine alignment, change transmission fluid, check internal and
external exhaust shutters, replace fuel filters, inspect seawater pump and replace impellors.
Drive : all 25 and 50 hrs checks. Change drive oil, change transom input bearing oil, inspect bellows and
clamps, examine all rotating parts for wear and replace as required.

As you can see its quite labour intensive compared to normal boats, impellors didn't normally make it to the change interval as the boat frequently gets airborne and if you are not quick on the throttle they run dry and are knackerd, we always carried several onboard, and it wasn't fun standing between the front of the engine and bulkhead and working in a very tight spot with a redhot 1200 hp engine trying to replace the impellors, yes there were 3! in a stacked pump arrangement. The smaller 900hp engine just had one.
The engines ran straight into a gearbox which gave you forward and reverse, then a short propshaft with U/J's each end to the transom which had a jack shaft which had is own oil, then on the other side was the drive input shaft with two U/J's going into the NXT drive which is direct drive, no for/rev gears.
I had all 4 engines out of the Nortechs at varying times and several gearboxes and drives off and split for repairs, also transom input shafts out to replace bearings. I will try to post some pics.
Click to expand...

Thank you, that's fascinating! How robust are the engines in terms of bigger rebuilds? Your notion of taking out all four engines at some point suggest bigger work, but is there a rule-of-thumb number of hours where a bigger rebuild is usually done?
 
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We never had any major faults with the engines, it was usually oil leaks and welding cracks on the exhausts resulting in unwanted seawater leaks over electrical components, so pretty robust when you consider the hp they are producing.
But the Factory produced engines have the Smartcraft monitoring system so you get warnings and there were a few Do's and Don'ts such as never rev them up over 1200 rpm in neutral, the engine must be under load before taking the revs higher.
And Do not use full throttle until water temp is over 54C and oil temp is over 60C.
 
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