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RE: AquaCraft Alligator RTR - 12/30/2008 8:08 AM   
deslok113


 

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From: Gonzales, LA, USA
Status: offline 		Well I have some good news and some bad news. The Tower tech said to turn it out only 1.5 turns. I turned it out 1.5 turnsstill nothing. I shortened the fuel line and at 1.25 turns a little sputter!!! at 1/8 turn cw from that the darn thing started and ran!!! FINALLY!!!! But I noticed fuel leaking inbetween the crankcase and the head. I'll try to tighten up the head screws. And bench run it again tomorrow. What a fickle engine!!! Maybe it has to due with the pressure and humidity here in South Louisiana in winterprobably. But this is the first engine I had do this. A little over 1 turn out is really lean to me but I've only been into Nitro for about 3 yrs now. Well I'll chalk it up as a learning experience. I think when I go to break in the engine I'll set the needle in reverse so I'm sure I'll get adequate lubrication. I'll start it at its current needle setting and then enrichen it (while it is running) for breakin then lean it out again after breakin. What do ya'll think?? Input is greatly appreciated.

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RE: AquaCraft Alligator RTR - 12/30/2008 10:22 PM   
harrisdouma


 

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From: beaver dam, WI, USA
Status: offline 		I am thinking of converting My aqua craft alligator to Diesel Power. I put a P.A.W. 036 diesel
moter on the back of Dumas little swamp buggy and it worked great. MY reason would be
because Diesels run cooler and and more quiet than glow engines, So should be ideal for
pusher operation. Has anyone else thought of doing this?
Harris

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RE: AquaCraft Alligator RTR - 1/1/2009 12:00 AM   
Traxxas4fun


 

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Status: offline 		I HAVE NEVER bought such a hard to tune peice of crap motor in my life.. WE can get it to start by only priming the carb with fuel.. Then we have to hold down the gas cap because the pressure pops it open then it shuts off. Then we only get it to run if we hold the throttle about half way. This WILL NOT idle at all. What are the factory settings on all the needle high speed low speed and idle? then the screws that hold down the seats upfront stripped out from the vibration!!

HELP ME

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RE: AquaCraft Alligator RTR - 1/1/2009 12:31 AM   
deslok113


 

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From: Gonzales, LA, USA
Status: offline 		I understand your frustration. I had big issues with my gator also. The boat hull and electronics on mine seem to be ok but that engine. What a piece of crap. Try leaning the engine out big time. That's how I got mine to run. I have it turned out only 1 and 1/8th turns for mine to run otherwise it just floods and floods. Even though it now runs it leaks fuel by the connection of the head and crankcase. I think Aquacraft should've chosen a better make of engine than Super Tigre; junk. I'm going to pull the head tonight (before poping firecrackers; can anyone say sparkler bomb) and try to see if I can seal the leak. If not I'm sending my poop engine back to Tower for a replacement poop engine. OH BOY!!!

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RE: AquaCraft Alligator RTR - 1/1/2009 12:36 AM   
Traxxas4fun


 

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Status: offline 		which needle? im a newb to engines but my dad has planes helicopters and cars before..
and turn it out 1 1/8 turn from ALL THE WAY IN?

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RE: AquaCraft Alligator RTR - 1/1/2009 1:53 AM   
deslok113


 

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Status: offline 		The HS needle. Don't touch the LS needle what ever you do; you might never get it started then. Turn the HS needle in all the way then turn it out 2.5 turns. If no start, pull plug, pinch fuel line and then spin engine , put a rag over the plug hole so fuel doesn't spray all over you, then turn in 1/2 turn to 2 turns and try again. The Tower tech lady said to put mine at 1.5 turns out and then try but it still didn't run until I was at 1 and 1/8 turn out. After you go below 1.5 turns only turn it in 1/8 turn until it stay s running. That's how I got mine to run now I have to address the fuel leaking between head and case. Mr CajunGator said to pull head and sand sleeve in an earlier post to this thread. i'll try that next before shipping back to Tower.

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RE: AquaCraft Alligator RTR - 1/1/2009 1:59 AM   
hpiguy


 

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Status: offline 		LOL, having to sand sleeves, retune engines on brand new "beginner friendly" boats, yup, sounds like Aquacraft had the V24 design team do this one too.


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RE: AquaCraft Alligator RTR - 1/1/2009 3:43 AM   
Mr Cajun Gator


 

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Status: offline 		I'm seeing a lot of frustration on here. The boat I can't help to much on that, but the engine, there is help. First off, SuperTiger has good engines that work well on the pusher set up airboat. With any nitro engine, you must have some knowledge of setting the needles. The air craft engine is the most forgiven of the nitros to set. There are some things to understand before hand. Like, it is impossible IMO to have setting that will work every time, much less to have a setting to work out of the box. Ex: You can have your engine set perfect at 8:00 in the morning, then come noon, the engine is running like crap. This is normal, don't worry!! Reasons why, temp and humidity, make a big difference on the needle settings. A good cool crisp day and the nitro engine will run at its best. Hot humid day and the engine will be harder to tune in. Another thing to keep in mind is nitro fuel absorbs moister like a sponge. Glow plugs can also make running the nitro engine a pain. Times the glow plug will glow, but as soon as the engine starts, a bad glow plug will make the engine run like crap. Something else to keep in mind, no two carbs will be exactly the same, on where the needle needs to be. It does not take much to change to change how the engine will run. As time goes by You will learn how to listen to the engine, and the engine will tell you just what it is wanting, give it to it, your engine will be happy and so will you. Its just part of the hobby.
Don't expect every thing to come out of the box perfect, tuning is required to get any boat to run like you are wanting it to. Also remember the cost of this boat, these are entry level boats, not race ready with all of the bugs work out.
When You remove the sleeve TAKE NOTE on where the little notch is on the engine. Replacing the sleeve in the wrong direction will give you BIG headaches in why the engine is not running or why it is really running like crap.

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RE: AquaCraft Alligator RTR - 1/1/2009 4:13 AM   
deslok113


 

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From: Gonzales, LA, USA
Status: offline 		Although I've only been into Nitro for 3 yrs,I hadn't had this problem with any OS marine or OPS marine engines or any HPI car engines. This is the first aircraft engine that I've had to tune though.

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RE: AquaCraft Alligator RTR - 1/1/2009 4:20 AM   
hpiguy


 

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Status: offline 		I think a good option for this boat would have been a lexan fake V8 with an electric motor in it that spun the pusher.

Much less frustrating, plug and play for beginners but easily modded to hi-po motors for R/C junkies and the batts could have gone down in the hull to keep CG nice and low to improve handling.


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RE: AquaCraft Alligator RTR - 1/1/2009 5:13 PM   
Mr Cajun Gator


 

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quote:

ORIGINAL: deslok113

Although I've only been into Nitro for 3 yrs,I hadn't had this problem with any OS marine or OPS marine engines or any HPI car engines. This is the first aircraft engine that I've had to tune though.

Yes there is a difference in tuning these engines, also a big difference in the price.

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RE: AquaCraft Alligator RTR - 1/1/2009 7:32 PM   
harrisdouma


 

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From: beaver dam, WI, USA
Status: offline 		I don't understand why tower doesn't make a RTR alligator and one without radio or moter.
That would give modelers a lot more options equipment wise. electric version with brushless
moter would be a lot more beginner friendly. Since i love Diesel I will be converting the gator
to diesel and than it will run cooler and be less noisey.
Harris

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RE: AquaCraft Alligator RTR - 1/2/2009 1:17 AM   
crispyspa



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quote:

ORIGINAL: hpiguy

I think a good option for this boat would have been a lexan fake V8 with an electric motor in it that spun the pusher.

Much less frustrating, plug and play for beginners but easily modded to hi-po motors for R/C junkies and the batts could have gone down in the hull to keep CG nice and low to improve handling.



That, my friend, is a very good idea. I wonder if the AquaCraft guy is monitoring this post?


YOU HEAR THAT AQUACRAFT?

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RE: AquaCraft Alligator RTR - 1/2/2009 2:39 AM   
Traxxas4fun


 

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Status: offline 		but ive had a revo, duraTRASH nitro..

but theyve never been hard to tune..

my dad said he got it to run but we have to give it gas now n then

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RE: AquaCraft Alligator RTR - 1/3/2009 8:19 AM   
Kmot



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Status: online 		Here's how to start a Super Tigre G34:

http://www.youtube.com/watch?v=T7r2GBvpFno

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RE: AquaCraft Alligator RTR - 1/3/2009 6:26 PM   
hpiguy


 

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Status: offline 		I like the bottle used to muffle it.


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RE: AquaCraft Alligator RTR - 1/3/2009 8:47 PM   
Kmot



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Status: online 		The bottle is being used to capture the oil from the exhaust. I tried something similar once myself:

http://media.putfile.com/Magnum-40-XLS-Break-in-Running

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RE: AquaCraft Alligator RTR - 1/3/2009 9:01 PM   
500 lb. koolaid man



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Status: offline 		Had to ask. Capturing it just so it doesn't make a mess? Or saving it for something (what)?

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RE: AquaCraft Alligator RTR - 1/3/2009 10:42 PM   
planebasher


 

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Status: offline 		If you want a good engine, get you an OS .46 FX or .46Ax, Darn just so happens I have one of each, one in the box and one on a BSB. If you really want it to haul the mail, put the OS .61 FX on it, uh oh, I just happen to have one of those on a BSB and it will Torque Roll the boat over if you nail it before getting it planed out. How about 35 to 40 Mph.



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RE: AquaCraft Alligator RTR - 1/4/2009 12:21 AM   
Kmot



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Status: online 		Mr. Kool: I was trying to not make a mess all over my flight box. I normally break-in my engines on a test stand. This one I decided to do in the airplane. The flight box was the perfect place to hold the plane off the ground. But I didn't want all that oil spray on the flight box. So I jury-rigged that setup and it did the job.

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RE: AquaCraft Alligator RTR - 1/4/2009 1:32 AM   
planebasher


 

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Here is something you might want to try on your Ready to Run Gator.

I once bought a Ready to Fly Airplane; there was no way to get the engine to run more than a few seconds; but being the idiot, I took off anyway, yep it nosed over into the ground destroyed everything from the wing forward.

While performing an autopsy on the wreck, I started taking it apart; guess what I found, the fuel lines were colored coded where they came out of the fuel tank, red to the muffler for pressure, blue to the carb for fuel; the factory had crossed the lines internal to the tank; there was no way for the engine to run more than a few seconds, this would also explain why your tank cap blew off, no where for the fuel or pressure to go.

Now I always take a RTR apart before, trying it out.


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RE: AquaCraft Alligator RTR - 1/4/2009 10:38 PM   
nitrovice


 

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Status: offline 		@ harrisdouma
where would you get a diesel engine, which make?

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RE: AquaCraft Alligator RTR - 1/4/2009 10:58 PM   
nitrovice


 

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Status: offline 		There is an r/c airplane club near my home so I finally went there to ask a few things and here is what I have learned:

When starting their airplane engines they always give about 1/3 to 1/2 throttle,
when the engine runs they DO NOT remove the glow igniter immediately but instead they hold the throttle for a few seconds and then they go to full thottle for 2-3 seconds and back to a bit above idle,
then they finally remove the igniter

Knowing this procedure now this would explain many of the starting issues we have had here, maybe just try it the way the r/c pilots do because in the end the included Super Tigre is an aircraft engine.
And like Mr. Cajun Gator said you cannot compare it to a car engine.

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RE: AquaCraft Alligator RTR - 1/5/2009 4:33 AM   
harrisdouma


 

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Status: offline 		supertuner1
For diesel engines, I have gotten diesel heads for existing glow moters at;
davisdieseldevelopment.com they have heads for different size O.S. and Super Tigre engines
Harris

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RE: AquaCraft Alligator RTR - 1/5/2009 5:44 AM   
lipdaddy


 

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Status: offline 		How do you start the diesel engines with no glow plug?

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