where to mount aux/kicker engine??

[lime4x4]

I want to add another engine to this boat but i'm not sure how to go about doing it.I've enclosed a pic of the boat in question.Also the engine will have power tilt and be remote controlled

 

[hoytultratec]

Re: where to mount aux/kicker engine??

do a search on kicker brackets, there are some that mount to the swim platform, then search ezsteer for steering it.

not sure who makes the brackets though try the iboats store.

 

[hoytultratec]

Re: where to mount aux/kicker engine??

i cant find one that mounts to the swim platform ive seen them unless they were custom made im sure someone here has a better idea. later hoyt

 

[tashasdaddy]

Re: where to mount aux/kicker engine??

ok that's an add on swimplatform, and will not support a 25 hp motor we've been talking about. you are going to have to have a custom, mount built that will thru bolt thru the transom. it's going to have to be high enough to the the foot of the aux motor out of the water when crusing. that's why i said you need a 25 inch shaft.

 

[lime4x4]

Re: where to mount aux/kicker engine??

yeap need atleast a 25 hp one.I did come across these but there only for a 9.9 hp which isn't going to push this big old boat

http://www.adventuremarine.net/motor-brackets.cfm

 

[tashasdaddy]

Re: where to mount aux/kicker engine??

i think the first thing you need to do, is float that boat, and see where it sits in the water. i'm 90 % sure that swim platform is not far above resting float.

 

[lime4x4]

Re: where to mount aux/kicker engine??

well do.that will probably be in 3 weeks or so.Pulling the engine to rebuild it.Once we have it in the water i'll c where the platform is in relation to the water

 

[scoutabout]

Re: where to mount aux/kicker engine??

It would be some work but one approach might be to remove a couple of feet of platform on one side or the other, then construct a splashwell that mounts directly to your transom and goes far enough aft to allow the aux motor shaft to clear your trim tabs.

It might make you float a little cockeyed, though, having something as big as a 25 horse motor way out on one side.

 

[tashasdaddy]

Re: where to mount aux/kicker engine??

this is my take on it. without cutting anything. use aluminum angle and a 2 pieces of 3/4 ply to mount the motor. send me a PM with your email. for some reason it won't let me upload the picture.

 

[lime4x4]

Re: where to mount aux/kicker engine??

The only reason i want the aux engine is for when were fishing in the bays or offshore and something happens to my main engine i would like to be able to get back to shore...lol

 

[Boatist]

Re: where to mount aux/kicker engine??

I see many boat with motor mounted to the swim platform and none on them work very well Offshore. Looking at your picture I think you will have a hard time finding a motor that will work on the Swim platform at all in the ocean.

I do not think you will be able to find a shaft long enough to keep the prop in the water Offshore. Problem is the swim platform looks to be around 2 foot wide so the motor will be shaft at least 2.5 feet behind the transom. In big swell in the ocean you will find when you go over the swell the prop will come out of the water. Even if you can find a 25 inch shaft you will only be able to run the motor at a fast idle so get a prop with the largest diameter you can get for the motor you buy. If you run above a fast idle when the prop comes out of the water the motor will rev way up and when it drops back in the water the shock will likely break the FlyWheel Sheer Key and you will be dead in the water. At high RPMs when it comes out of the water the motor will over rev and destroy itself.

Inland it will work very well.

1: Key is to mount motor as close to the transom as you can.
2: Get the largest diameter prop you can get so you get good thrust at LOW RPMS.

Good Luck and let us know if you find a Good solution.

 

[lime4x4]

Re: where to mount aux/kicker engine??

i was actually thinking of moving the ladder to the other side then cutting the swim platform a little where the ladder was and mounting the aux engine directly to the transom

 

[tashasdaddy]

Re: where to mount aux/kicker engine??

total agree with you. didn't notice the walk thru. have no idea why ladder is on the port side.

 

[lime4x4]

Re: where to mount aux/kicker engine??

Can i just remove the swim platform.use pressure treated 2X4's to build a new swim deck frame.Use the stainless steele support brackets then lay that plastic deck wood on top??? First thou i have to get the boat in the water to c how it sits in the water

 

[Boatist]

Re: where to mount aux/kicker engine??

Anything you can do to get the motor closer to the transom will make a big difference. My boat is only 21 feet and weigh 2800 lb dry and I have a 15 HP Johnson 2 stroke with a 20 inch shaft. My motor is mounted on two of the Garelick auxiliary lift brackets for up to 20 HP that I modified to make into one with plenty of lift. Bracket has a 14 and 1/2 inch vertical lift. I started with one bracket but on the road the motor moved around way too much so I added another with a double wide motor mount to tie the units together. Also attached the relese lever together. The result is a motor bracket that is very stable. If I relese the latch the motor will go down about half way and stop then I must push it down the rest of the way if I want it to go all the way down. From all of the way down if I release the lever motor will rise about half way and then will have to lift the rest of the way. I spray it with a teflon lube now and then to keep it free but very easy to operate top to bottom.

Still out offshore when the SEAs get 8 feet every 9 seconds the motor will sometimes go completely under the water and still the prop will come out also. If the seas are 5 feet every 10 seconds then power head stay out of the water and the prop stays in the water. Since I have broke the flywheel Keyway twice from useing two much power and having the prop come out I usually do not use that much power if it rough just in case. I also Carry spare keyways but it to much to do on the water on a rough day unless it the last resort.

My unit power wise is good for my boat 95 percent of the time but going into a head sea and turning into the sea and the wind 30mph it barley will turn up at about 1/2 power. So if Quartering the seas to lessen the strain on boat and crew would be a challange. Luckly for us have never had the main motor fail so only tried it a time or two for practice and to know what to expect.

One other thing that happen with my boat is most of the time I use the aux motor is to slow our drift when bottom fishing. My boat a Runabout will allways turn with the bow down wind unless we use a sea anchor. So to slow our drift while fishing will kick the aux motor in reverse at idle speed. Since I changed to a big 4 blade high thrust prop it back up very well. When I had the standard prop would have very little affect as the prop would run in the exhaust gas and get very little bite. Anyway if at high idle and the prop comes out while backing into the sea and wind it will throw water up into the air and the wind will blow it on my Back Starboard fisherman. At low Idle the water does no get high enough to make it on board.

Today they make some hydraulic lift brackets for Kickers motor and they mount on the transom and will lift large kickers but they are not cheap. I think your motor would still clear you trim tabs. I also have Hydraulic trim tabs 24 wide and 12 core or deep per side.

For steering I use an EZ-Steer and works very well but I do not have power steering and do not know how hard it would be to steer with power steering without the main motor running.

I think your on the right track with your plans. My kicker is also on the port side.