Unofficial Nitro Hammer Thread
07-24-2007, 07:05 PM
#826
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: 1totrust
Hi Everybody,
I’m new here and I’d like to know if someone tried this before.
When I bought the Nitro Hammer I was pretty disappointed. The tank wasn’t air tight, and the low speed needle was so tight that the boat wouldn’t run at all when I took it out of the box. It was my first boat, after several nitro buggies, so I wasn’t aware that this boat couldn’t stand still and idle in the water. Also I didn’t know that it only has cooling for the engine when it’s moving. So before I even broke in the engine, I took the boat apart and customized it to my expectations.
First I put in a clutch from a buggy that I modified with an aluminum part, so that I can connect it to the shaft.
Then I put a nitro fuel pump in there to have cooling of the motor at all times.
It all works well and it is fun and easy to drive.
Hi Everybody,
I’m new here and I’d like to know if someone tried this before.
When I bought the Nitro Hammer I was pretty disappointed. The tank wasn’t air tight, and the low speed needle was so tight that the boat wouldn’t run at all when I took it out of the box. It was my first boat, after several nitro buggies, so I wasn’t aware that this boat couldn’t stand still and idle in the water. Also I didn’t know that it only has cooling for the engine when it’s moving. So before I even broke in the engine, I took the boat apart and customized it to my expectations.
First I put in a clutch from a buggy that I modified with an aluminum part, so that I can connect it to the shaft.
Then I put a nitro fuel pump in there to have cooling of the motor at all times.
It all works well and it is fun and easy to drive.
07-24-2007, 10:49 PM
#827
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RE: Unofficial Nitro Hammer Thread
i've replaced the tank with one outof a stadium truck as soon as i realised the stock one was leaking, as soon as i swapped the tank out my tuning hastles went away. i was surprised at how well the engine did hold a tune withthe right tank in there.
07-25-2007, 06:34 AM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: 1totrust
Then I put a nitro fuel pump in there to have cooling of the motor at all times.
It all works well and it is fun and easy to drive.
Then I put a nitro fuel pump in there to have cooling of the motor at all times.
It all works well and it is fun and easy to drive.
07-25-2007, 06:48 AM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: dicko
don't bother with the aquacraqft distributor in oz, go straight to tower hobbies.
don't bother with the aquacraqft distributor in oz, go straight to tower hobbies.
Some people have no idea with hobbies, I wondered why the rudder had a lot of movement in it.
Took it off and found out the guy who owned it before me must have had troubles with rudder sticking and instead off just using a bit of wet and dry on it he cut big pieces out of it with and knife.
New rudder is on back order with Tower Hobbies.
07-25-2007, 08:12 AM
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RE: Unofficial Nitro Hammer Thread
I just connected it to the batteries of the receiver. Runs without problems. Sure it would pump much faster with 12v but the cooling the motor gets from 4.8v is perfect.
07-25-2007, 08:30 AM
#831
RE: Unofficial Nitro Hammer Thread
Why do you want the boat to stand stll in the water? you have added unneeded weight, and robbing power from tour reciver battery is a huge no no. The biggest issue with the hammer is getting it trimed corectly and even then it is not very stable.
07-25-2007, 09:12 AM
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RE: Unofficial Nitro Hammer Thread
Why I want it stand still in the water? My main reason is that I want all my Rc stuff as close to the real thing as possible. And a real Boat engine wont die if you try to stop with the boat. I am also able to take of much quicker, because the engine revs up before the clutch engages.
And about the trim you mentioned, funny thing. Being forced to mount the motor a little further to the front gave me a much more stable ride than before. And about adding weight, this sullivan pump is for Airplanes. Believe me its very light. Also the whole Clutch assembly is not heavier then the flywheel it replaced. I can't see the point of not being able to use power from the radio batteries.Works fine for me.
And about the trim you mentioned, funny thing. Being forced to mount the motor a little further to the front gave me a much more stable ride than before. And about adding weight, this sullivan pump is for Airplanes. Believe me its very light. Also the whole Clutch assembly is not heavier then the flywheel it replaced. I can't see the point of not being able to use power from the radio batteries.Works fine for me.
07-26-2007, 07:49 AM
#833
RE: Unofficial Nitro Hammer Thread
An rc boat close to the real thing? okie dokie then,also I was concerned about runnin the batteries down and losing control inputs but it sounds like you got it under control have fun with it.
08-21-2007, 10:27 PM
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RE: Unofficial Nitro Hammer Thread
Don't know how to ask this question without sounds like a noob... but here goes.
I rang a guy here in Australia about getting a Octura prop for my hammer.
Asked about get a Octura X-432 or X-435.
He said a Octura X-438 would be a lot better, so I said ok.
I gave him or the measurements.
drive shaft hole dia
prop dia
pitch
boss lenght
boss dia
deep drive dog slot
wide drive dog slot
The Octura X-438 measurements are different.
I thought the new Octura prop would be bolt on, same measurements as standard..............??
Am I wrong, should it be bolt on or am I meant to mod drive shaft etc,
Thanks
Dave
I rang a guy here in Australia about getting a Octura prop for my hammer.
Asked about get a Octura X-432 or X-435.
He said a Octura X-438 would be a lot better, so I said ok.
I gave him or the measurements.
drive shaft hole dia
prop dia
pitch
boss lenght
boss dia
deep drive dog slot
wide drive dog slot
The Octura X-438 measurements are different.
I thought the new Octura prop would be bolt on, same measurements as standard..............??
Am I wrong, should it be bolt on or am I meant to mod drive shaft etc,
Thanks
Dave
08-21-2007, 10:41 PM
#835
RE: Unofficial Nitro Hammer Thread
Dear Noob......err, Dave. 
Don't sweat being new to boats as we all were at one time.
Probably what your problem is that the larger props won't fit the shaft as Octura props over 35mm have a 3/16" hole in the hub and those under 37mm have the 1/8" holes.
The boat might not be able to turn the 438 very well. We've tried larger props on them and they really load the engine. If the boat had a surface drive insted of the sub-surface then it would be able to.
Don't sweat being new to boats as we all were at one time.Probably what your problem is that the larger props won't fit the shaft as Octura props over 35mm have a 3/16" hole in the hub and those under 37mm have the 1/8" holes.
The boat might not be able to turn the 438 very well. We've tried larger props on them and they really load the engine. If the boat had a surface drive insted of the sub-surface then it would be able to.
08-22-2007, 12:04 AM
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RE: Unofficial Nitro Hammer Thread
yup Dave, Ron is correct.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
08-22-2007, 04:08 PM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: Dan S
yup Dave, Ron is correct.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
yup Dave, Ron is correct.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
08-22-2007, 04:56 PM
#840
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: 1/10nitro
would a spoiler dp any thing to a bitro hammer would it help it with speed or slower it down
would a spoiler dp any thing to a bitro hammer would it help it with speed or slower it down
08-22-2007, 05:31 PM
#841
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: 1/10nitro
would a spoiler dp any thing to a bitro hammer would it help it with speed or slower it down
would a spoiler dp any thing to a bitro hammer would it help it with speed or slower it down
nice lookin boat with spoiler.[sm=thumbup.gif]
09-02-2007, 03:08 AM
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RE: Unofficial Nitro Hammer Thread
Hi this is my first boat in about 20 years and im haveing fun and a thank you to you all i know why my boat is walking on water and how to fix it ill be hanging out here from now on i have some new parts turning up soon found them on ebay. [img][/img]
09-02-2007, 08:37 AM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: rocketwheels
Hi this is my first boat in about 20 years and im haveing fun and a thank you to you all i know why my boat is walking on water and how to fix it ill be hanging out here from now on i have some new parts turning up soon found them on ebay. [img][/img]
Hi this is my first boat in about 20 years and im haveing fun and a thank you to you all i know why my boat is walking on water and how to fix it ill be hanging out here from now on i have some new parts turning up soon found them on ebay. [img][/img]
09-02-2007, 09:12 PM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: Dan S
yup Dave, Ron is correct.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
yup Dave, Ron is correct.
a 438 is too much prop for the Aqub .15
the shaft size on the Hammer is 1/8 and all the other props you mentioned 432, 435, 438 are 3/16.
you could however try a y535 from octura, made for 1/8 shaft but than again I'm not certain it would fit.
Dan.
Only way I see is to silver solder a solid piece in and redrill it but them the balance would probley be out.
Just don't want to see the prop go to waste.
09-02-2007, 09:14 PM
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RE: Unofficial Nitro Hammer Thread
ORIGINAL: rocketwheels
Hi this is my first boat in about 20 years and im haveing fun and a thank you to you all i know why my boat is walking on water and how to fix it ill be hanging out here from now on i have some new parts turning up soon found them on ebay. [img][/img]
Hi this is my first boat in about 20 years and im haveing fun and a thank you to you all i know why my boat is walking on water and how to fix it ill be hanging out here from now on i have some new parts turning up soon found them on ebay. [img][/img]
Where about are you running yours on the Coast?
09-02-2007, 09:32 PM
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RE: Unofficial Nitro Hammer Thread
Where about are you running yours on the Gold Coast? Im at paradise Point there is some small ponds here i use it in them thay are call the training ponds i found out the other day.
What did you use for your vent on the cowl? i have a 14 ft speed poat i used the fual breather off my big boat just cut it down to fit on my toy boat it look ok and stops water from getting in. Cost $1.50 from Writhworths.
What did you use for your vent on the cowl? i have a 14 ft speed poat i used the fual breather off my big boat just cut it down to fit on my toy boat it look ok and stops water from getting in. Cost $1.50 from Writhworths.