Re: Plate Aluminium Wake Boat - LED's

Postby MACH6 » Wed Apr 25, 2012 8:45 pm

No1Spcl wrote:I'd love to pimp my boat trailer with those rope LEDs, might cause a few distractions to other drivers on the road when going home at night. Don't think it would be strictly legal. Nice job Mack6


Funny you mention that, as I am looking into putting some under the mud guards.

I have been doing a fair bit of night driving on terrible roads and I would like to see how far I have before I go over the shoulder or how far I missed that giant pothole. I have had a few times where I pulled a little too far left when giving an oncoming truck a bit of room only to fall off the shoulder or ride half off the edge of it, mainly due to me not seeing how close the trailer is to the edge.

I'm looking at a 1m strip fitted under each mud guard, right on the edge so it illuminates the ground out a meter or so. I will have to get something a bit more robust than this stuff so it will survive repeated dunkings and all the stuff that gets flung up from the tyres.

Should make driving at night a bit easier.
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Re: Plate Aluminium Wake Boat - LED's

Postby No1Spcl » Thu Apr 26, 2012 10:00 am

I used those waterproof LED strips to replace a fishtank light about 6 weeks ago, cut the roll up into shorter pieces and then soldered the whole lot ogether and covered all the ends and joins in a marine sealant and haven't had any problems, so those LED's must be fairly well insulated/waterproof, when their off there covered in moisture and when they get turned on they dry off. So I wonder how they would stand up to the vibration. Not sure if what I had were the same as your's I did pick em up in china. Maybe you could use a small LED light that mounts forward of the mudguard that points rearward lighing up the tire from the front.
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Re: Plate Aluminium Wake Boat - LED's

Postby MACH6 » Tue May 01, 2012 8:34 pm

No1Spcl - I could give them a crack but I have noticed that the back of the strip has bare copper tabs so that you can solder where you cut. So that may cause some issues is any water were to get in there and short it out. I might trawl eBay and see what I can turn up. If I come up with nothing else, I may just whack that strip light down with a good bead of silicone around it.

Got the underwater LED's crankin and damn they are bright! The pictures just don't do it justice, you cant look directly at them from any closer than about 10m or you get spots in your eyes.

Did a bit of a comparison with the lux meter.
Single 55w halogen hella spottie approx 5 deg spread : 1400 lux @ 1M
Single 100w halogen hella spottie approx 5 deg spread : 2700 lux @ 1M
2 x 24w (48w maeasured) LED royal blue 455nm approx 140 deg spread: 1100 lux @ 1M
The light output of the LED is absolutely huge compared to the spotties as the light is getting spread over about 500x more area than the spotties.

Note/disclaimer: I got the 500x more area by roughly calculating the areas of a spherical cap and comparing. I MAY BE WRONG!


I had to get some power supply's to power the suckers as I needed to step up the voltage to about 34v. It was a bit of fiddling with the step-up power supply, getting the optimum current draw vs voltage. Ended up having each pair of chips drawing about 4.1A @ 12.3V giving it about 48 or so watts to the chips after factoring in losses with the power supply, about 100w in total. Also used the aluminium boarding platform as a heat sink to dispose of all the heat generated from the LED's, worked a treat and barely heated up at all.

Not bad for about $90 in parts!
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Re: Plate Aluminium Wake Boat - Underwater LED's

Postby No1Spcl » Sat May 05, 2012 9:10 am

Nice Job, doing this stuff yourself makes it so much cheaper, and google can answer pretty much any question you have, my boat's got the underwater LED's on the transom and I have never had the boat in at night to use them. Might have to go fishing one night in the river and see if they will attract any fish.
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Re: Plate Aluminium Wake Boat - Underwater LED's

Postby MACH6 » Sun Sep 02, 2012 6:10 pm

We have been a bit slow with the additions lately but here is the latest mod.

To get the most out of the colder months we decided to chuck in a hot water shower.

We have a 30PSI Johnson pressure pump underneath the floor just behind the engine cover pumping raw water in through a heat exchanger mounted on top of the engine. The heat exchanger gets it hot water from the thermostat housing and dumps back into the side of the coolant pump.

The sucker works a treat. We need to run it for a couple of seconds before you can use it as it is quite hot at first.

Its great for warming up your tootsies after a set.
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Re: Plate Aluminium Wake Boat - Hot Water Shower

Postby in2it » Sun Sep 02, 2012 7:39 pm

Ment to catch up with you guys yesterday that boat looks cool in the flesh just got side tracked when one of the boys got hurt maybe next time
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Re: Plate Aluminium Wake Boat - Hot Water Shower

Postby MACH6 » Tue Sep 04, 2012 6:29 pm

Cheers mate, saw you guys chugging around the place, was bit gusty out there at times. We had a good couple of sets right when everyone buggered off for lunch, the wind dropped right off & we had the place to ourselves. Good timing.

Your mate OK?
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Re: Plate Aluminium Wake Boat - Hot Water Shower

Postby MACH6 » Mon Oct 20, 2014 9:18 pm

Got stuck back into doing a bit of work on the boat recently to fix an issue with the skeg and do a bit of adjustment to the wake.

The old skeg had some harmonics at 25-27MPH and would hum quite a bit so a new skeg was put into production. It took a while to mill up but it turned out sweet in the end.
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I also did a trim on the negative chine at the rear of the boat. I pretty much just hacked it off, we'll see how it changes the wake but it's mainly for the surf wake to stop it curling over too early.
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A few steps were also added to the trailer to help with ingress/egress of the boat.
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Re: Plate Aluminium Wake Boat - New Skeg & Hull Hack

Postby Dickj83 » Tue Oct 21, 2014 8:56 am

Looking good mach6. Let us know how it goes. I love the 'cut and shut' ability of the alloy boats!
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Re: Plate Aluminium Wake Boat - New Skeg & Hull Hack

Postby MACH6 » Mon May 23, 2016 8:39 pm

So, been a while....

Been out a moderate amount, not too much this year.

The hull chop that I did made the wake for boarding a heap easier to dial in now. It is a fair bit steeper further back from the boat so I can have the rope way out but still get a huge ramp to pop me well over the wake width without even trying.
Did bugger all to the surf wake, it is tending to be a pain to dial in but when we get it, it is OK but not superb.

New skeg is awesome! No bl00dy harmonics anymore but I think it may be a bit big as I think it keeps the boat too level in the turns and will counteract a bit too much. I might have to pt a couple of holes in the leading edge to ventilate it a bit and dial down the reaction force during turns.


Back to tinkering with the boat:

Put a 4 way stereo in with remote at the hem and a Fusion sub/amp combo under the helm. Tunes are soooo good!
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In an attempt to dial in the surf I made these suckers up.
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Re: Plate Aluminium Wake Boat - New Skeg & Hull Hack

Postby MACH6 » Mon May 23, 2016 8:51 pm

Continued:
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Re: Plate Aluminium Wake Boat - Surf Gate/Fence/Door/Thingie

Postby will » Tue May 24, 2016 7:57 am

Great to see! :) Do you get out much over winter?
Enjoy the ride. Any time on the water is good time!
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Re: Plate Aluminium Wake Boat - Surf Gate/Fence/Door/Thingie

Postby MACH6 » Thu May 26, 2016 7:26 pm

Not as much as I like, was out at Moogerah the other day. Didn't even have to use the hot shower so I wouldn't really call it winter....

I'm away for work most of winter and the when I get back I have to go snowboarding for a couple of weeks. My next chance for liquid water is September :(
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Re: Plate Aluminium Wake Boat - Surf Gate/Fence/Door/Thingie

Postby MACH6 » Mon Nov 21, 2016 5:59 pm

After spending most of winter away with work I get back and take the boat out. She was running a bit average and noticed some bubbles coming through the coolant header tank from the heat exchanger.

There is nothing good that comes from bubbles in your coolant so we decided to rip the engine out and see what the issue was.


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So, cylinders 6 & 8 were full of water with severe corrosion on the cylinder. Pistons for 6 & 8 were stuffed with 2 others having heavy wear.

Cylinder Heads has superficial corrosion in the cylinders and a couple of the valves had some wear on the top of the stems, probably from a couple of hydraulic lifters failing.

Crank was cactus as it was 20 thou under already and the scoring on the big end could not be ground.

So, we ended up opting to bore it out 60 thou with a 383 stroker kit and recondition the heads. That should bring it up to 6.3L and give us a bit more torque.

The heads and block are at the machine shop now and I am stripping the rest of the engine down to sand blast and paint all the other bits that make up the engine.

I need to get my arse into gear and get this sucker going for christmas......
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Re: Plate Aluminium Wake Boat - Surf Gate/Fence/Door/Thingie

Postby lewy71 » Mon Nov 21, 2016 6:06 pm

I would be looking at either replacing those exhaust manifolds and risers or at the very least pressure test them. Stroker nice :D
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Re: Plate Aluminium Wake Boat - Engine Rebuild

Postby mof » Mon Nov 21, 2016 8:23 pm

Are you getting it balanced? 383s are externally balanced. The kit may have it covered, or you are all over it already. Also, watch for crank to sump clearance. My 383 crank just touched the inside of the sump, eventually rubbed thru and created a significant leak. It was "professionally" built too.
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Re: Plate Aluminium Wake Boat - Engine Rebuild

Postby 82Juddcraft » Tue Nov 22, 2016 8:20 am

If the exhaust manifold are cactus get new ones n don't mess around with second handys.

I bought a second hand set off eBay and they looked pretty good on the out side.
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That's the rust from just one side.

Another thing is where's the waterline, u might need to put a spacer in them risers.
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Re: Plate Aluminium Wake Boat - Engine Rebuild

Postby MACH6 » Tue Nov 22, 2016 6:08 pm

Thanks for the info guys, really appreciated.

The risers were pretty much new when we got the motor. My initial thoughts after taking them off and finding the coolant in 6 & 8 was that they had a crack in them and as they are cooled by the coolant loop it may have been leaking in through the exhaust valves. I was even more suspicious after finding the head gasket looking pristine.

I ended up pressurising each of the risers coolant cavities with a car coolant system pressure checker and the both held 10 PSI for a couple of hours. I also chucked a boroscope down them for a look see and they surprised me with how little corrosion they had. I ended up sand blasting the exhaust path to see if there was any serious cancer but they looked sweet. I was considering getting new gaskets but the ones on there look in really good condition and they are the expensive mica ones that crush down and seal really well so I think I will just give them a coat of fancy ceramic paint after the sand blast.

Juddy: Yeah I agree, you don't know what you are getting with 2nd had ones but damn new ones are expensive. I don't believe any water was back washing into the risers as it was green glycol that came out of the cylinders and all of the other exhaust paths were dry, so I reckon it is high enough above the water line.

Moffie: Yeah I'm coughing up the extra coin and getting the rotating components dynamically balanced, along with CnC clearancing of the block. Thanks for the heads up on the sump, I will be assembling myself so I will have a good look for that. Where exactly did it touch the sump? Did the sump sit in from the walls of the block a bit?

I have been spending my lunches at work looking through a small glass window blasting away at the rest of the engine bits.

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Re: Plate Aluminium Wake Boat - Engine Rebuild

Postby Feetfirst » Tue Nov 22, 2016 6:57 pm

Do you have any idea what caused the issue at all? I think we'd all like to see an "rca" (root cause analysis). Btw, totally loving the workshop you've got to play with. Green with envy. :shhh:
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Re: Plate Aluminium Wake Boat - Engine Rebuild

Postby 82Juddcraft » Tue Nov 22, 2016 10:36 pm

When I was building my engine everyone I talked to was banging on about how good Fel-Pro gaskets were.
I didn't use any goo or sealants, it's just something that'll break off and block oil passages, except I throw them intake valley seals away and used gasket silicon there.
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