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AMPS hulls & outboards pics & tips {Agnew Model Propulsion Systems}

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AMPS hulls & outboards pics & tips {Agnew Model Propulsion Systems}

Old 08-23-2020, 12:49 PM
  #2276  
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Excellent video, luv the water going through the exhaust tips, nice touch. And nice work on the repair.
Old 08-23-2020, 01:08 PM
  #2277  
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Originally Posted by ScarabChris View Post
I am still on the original plastic u-joints with the exception of the one I had to modify with the aluminum shock cap. It is still working great. With regard to the u-joints needing water I understand but this is not a race boat. I run it as a scale model so I rarely give it full throttle and I am running back and forth is a small space in the canal behind my house so they are only running "dry" for a few seconds at a time.

However, the metal U-Joints I have coupling the motors to the drives in the hull do get hot. So far no real issue there, they just feel hot when I pull the boat. Today the boat was running awesome but one of the cooling lines for one of the ESC's came off so I was filling the boat with water as I ran. Luckily I was on my real boat running the RC when I noticed it and was able to grab it. I have a bilge pump system I am working on now so if this happens in the future I will know and the water will be pumped out.

As for the U-Joints in the boat that are getting hot, you can see them here.

Have have to agree with Bob the water exit coming out of the exhaust tip is a nice touch . The original design for all the amps boats using the amps outdrives used a water nozzle to direct the exit water on to those u-joints some amps outdrive units have the water nozzles built into the transom bracket housing itself that's spray the exit water directly onto those u-joints . They were designed as a weak point on the assembly to save the gears also that's the other reason the propellers were always aluminum . where they heat up no matter if you're putting around or going full-throttle is when you steer the outdrive to the left or the right that's where the stress kicks in on the pens on the plastic
Old 08-23-2020, 01:21 PM
  #2278  
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Originally Posted by ScarabChris View Post
I am still on the original plastic u-joints with the exception of the one I had to modify with the aluminum shock cap. It is still working great. With regard to the u-joints needing water I understand but this is not a race boat. I run it as a scale model so I rarely give it full throttle and I am running back and forth is a small space in the canal behind my house so they are only running "dry" for a few seconds at a time.

However, the metal U-Joints I have coupling the motors to the drives in the hull do get hot. So far no real issue there, they just feel hot when I pull the boat. Today the boat was running awesome but one of the cooling lines for one of the ESC's came off so I was filling the boat with water as I ran. Luckily I was on my real boat running the RC when I noticed it and was able to grab it. I have a bilge pump system I am working on now so if this happens in the future I will know and the water will be pumped out.

As for the U-Joints in the boat that are getting hot, you can see them here.



This this is another way to fix eliminating the u-joints using flex shaft as long as you have the tool to square each end off and machining out a square on inside both hex seen a few people do this back in the days
Old 08-25-2020, 11:48 AM
  #2279  
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Yeah I can square off the flex shafts. I'm just not sure there will be enough "flex" in those shafts for tight turns. And if so it would put a lot of strain on the steering servos. But I like the idea of the flex shaft in the hull between the motors and transom. Thay would eliminate the heat issue I get on the U-Joints in the hull.
Old 08-25-2020, 11:54 AM
  #2280  
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Here is a quick post on my bilge pump system. This is a little pump I got from Amazon and a little rig that plugs into the AUX on your RX so you can turn it on and off from your TX assuming you have at least 3 channels. I did not mess with an auto system. I simply hit the AUX on the transmitter to check for water. It works very well. I poured about 12 oz of water in the hull and the pump evacuated it in about 30 seconds. This particular pump does not need to be submerged. It is a diaphragm pump so it will suck from well above the water. I mounted it under the ESC tray and ran a rigid tube to the back of the hull. Then a short dump overboard.

AUX on/off switch.
Amazon Amazon
Pump.
Amazon Amazon





Old 08-25-2020, 11:59 AM
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real nice Chris, thanks for sharing the links as well.
Old 08-25-2020, 12:09 PM
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Originally Posted by ScarabChris View Post
Here is a quick post on my bilge pump system. This is a little pump I got from Amazon and a little rig that plugs into the AUX on your RX so you can turn it on and off from your TX assuming you have at least 3 channels. I did not mess with an auto system. I simply hit the AUX on the transmitter to check for water. It works very well. I poured about 12 oz of water in the hull and the pump evacuated it in about 30 seconds. This particular pump does not need to be submerged. It is a diaphragm pump so it will suck from well above the water. I mounted it under the ESC tray and ran a rigid tube to the back of the hull. Then a short dump overboard.

AUX on/off switch. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Pump. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1




Excellent excellent idea on that bilge pump setup I really like it looks like it works very well might have to incorporate something somewhere on one or two of my boats that I've had some issues with
Old 08-25-2020, 12:21 PM
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Couple pics of it pumping out pool water that I poured in. I know the picture makes it look like drops but it's a steady stream.



Old 03-01-2021, 04:09 PM
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Ok guys I know I have been going for a bit. But here is where I'm at.






Old 03-01-2021, 04:10 PM
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Looks fantastic Chris !!
Old 03-01-2021, 04:29 PM
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Couple trailer pics. I built the trailer by hand myself. I even made the fenders. LOL. By now I'm sure you all know about the CEN Racing F450. Took me months to get one. It tows great. I'll see if I can upload a video.




Old 02-28-2022, 03:22 PM
  #2287  
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So a long, long, long time ago this thread started out with discussion on AMPS outboard motors.....I found this out when I was Googling for information on this type of motor
Why would I be doing that.....?
A buddy of mine just passed away and I'm trying to help his family dispose of items he had acquired over the years...including one such motor!
I'm not sure if the motor was ever run, or if it was it doesn't appear to have been run much.
The motor turns really freely including the outboard prop.....it does have some damage to the housing portions, which from what I read was a typical problem for this type of motor.
I'm trying to figure out how to get this sold to a new owner so that he/she can enjoy it and the family can get some bucks for it.....I'm on this site, FG and RCG but am not sure if there is much call for the motor on any of them
Thanks in advance for your help








Old 02-28-2022, 04:00 PM
  #2288  
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Default First off sorry for your friends loss .

Originally Posted by Hinckley Bill View Post
So a long, long, long time ago this thread started out with discussion on AMPS outboard motors.....I found this out when I was Googling for information on this type of motor
Why would I be doing that.....?
A buddy of mine just passed away and I'm trying to help his family dispose of items he had acquired over the years...including one such motor!
I'm not sure if the motor was ever run, or if it was it doesn't appear to have been run much.
The motor turns really freely including the outboard prop.....it does have some damage to the housing portions, which from what I read was a typical problem for this type of motor.
I'm trying to figure out how to get this sold to a new owner so that he/she can enjoy it and the family can get some bucks for it.....I'm on this site, FG and RCG but am not sure if there is much call for the motor on any of them
Thanks in advance for your help







Again sorry for your friend's loss . Unfortunately not a lot of people use this RCU form anymore but it's still a great reference point to look back on anything about amps . The motor you have in your hands is a last generation from 86 till 91 short shaft with a good OS max motor . You're absolutely correct about the problems with the original ABS cowlings they do tend to get brittle over the years . Most of us are on Facebook I have a similar form set up if you do a quick Facebook search just type in amps international hobbies and TMP and it will pop up . There's still a good market for collectors for that particular engine you will not have any problems selling it. Regards Ken
Old 02-28-2022, 04:16 PM
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Default Very very sorry for your loss

Hello, very sorry for your loss. I would like to give the little outboard a new home and a few bucks of course to the family, I sent you a private message and hope to hear from you. Bob

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