[spookybass]

i'm new to the forum! my friends just purchased a 1973 robalo 180 and it sits only about 2 inches from the water in transom, is the 2006 yamaha 115hp TXR 4stroke too heavy or can this boat be water logged? I noticed that the drain plugs in the rear look like water is soaked all around them(even when dry)! any help would be greatly appreciated! thanks!

[mr.g]

Where are your batteries located? What all is stored aft. Pictures would be VERY helpful. If the boat is on a trailer tilt the motor up and push down on it and see if there is any flex in the transom. I have a 81 1820 and mine does sit low in the stern. 2 inches ??? I have never measured it.

[2-N-TOW]

Does the boat have a garboard drain? It may be not so much waterlogged but water trapped in the fuel coffin. As Karl suggested, where are your batteries located? If at the transom, move them under the console...that is 65 pounds per battery back there. Finally, being too lazy to look up the weights...4 stroke motors tend to weigh 75-100 lbs more than a similar 2 stroke motor.

[mrrobalo]

Yes they are right about the moving of the extra weight but a pic is a must for me to see what they did. Some of the dealers would CUT a transom just so they can sell the 20 inch motor they had in stock rather than putting on a 25 inch motor. I know the extra weight of the 4 stroke effects the attitude of the boat and it can be adjusted by moving some weight but the size of the motor leg makes a BIG difference.

WE can help with this and when you take pics PLEASE do some in the water and on the trailer. Take a few from the back,side and in front of motor both in and out of the water. Also place a paint steerer stick on the bottom of the boat with the other end almost touching the motor when the cavation plate is level with the bottom. (IMG:style_emoticons/default/cool.gif)

[spookybass]

will try to take some pics tomorrow morning. the battery is located in the rear right compartment. i will post pics as soon as i get back from fishing this weekend. thanks for chiming in and being so helpful!

[mrrobalo]

":Just the facts MAM Just the facts"

Sorry Thats just what popped in my head Dragnet What a great show .

[spookybass]

will try to take some pics tomorrow morning. the battery is located in the rear right compartment. i will post pics as soon as i get back from fishing this weekend. thanks for chiming in and being so helpful!

my friend took some pics from his phone as i couldn't make the fishing trip!  securedownload__5_.jpeg ( 1.46MB ) Number of downloads: 19
he also mentioned that the top of the stern was flexing upwards and the crack was getting bigger as they pounded some waves! he did a flex test and there was no flex in the transome before they took off! i'm not sure where to look for the garboard drain, but i know that the gas tank was just replaced with a 17 gallon tank. there maybe some gunk or water in the tank as the engine stumbles when it reaches the old fuel level. the first time that happened, they switched the water fuel separator and it filled up by the next trip a week later! also, the cracks in the pics were only small hairlines before the trip!

This post has been edited by spookybass: Aug 2 2010, 01:47 PM

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[ReelPlumber]

my friend took some pics from his phone as i couldn't make the fishing trip!  securedownload__5_.jpeg ( 1.46MB ) Number of downloads: 19
he also mentioned that the top of the stern was flexing upwards and the crack was getting bigger as they pounded some waves! he did a flex test and there was no flex in the transome before they took off! i'm not sure where to look for the garboard drain, but i know that the gas tank was just replaced with a 17 gallon tank. there maybe some gunk or water in the tank as the engine stumbles when it reaches the old fuel level. the first time that happened, they switched the water fuel separator and it filled up by the next trip a week later! also, the cracks in the pics were only small hairlines before the trip!

You definately have some transome problems there. There is some flex to crack the transome and bend the stainless cap. I would say your in for a tramsome replacement. Others may see something different but that just my 2 cents.

As for a garboard drain, it is located on the back of the transome at the very bottom of the boat. Look at post 4 here and you will see the garboard drain at the bottom of the boat.
http://robaloboatowners.net/forums/index.php?showtopic=2220

[mr.g]

I have an 81 1820 and from your original post your transom is sitting more than 2 in above the water. My boat sits about the same as your pic indicate. If you are referring to the scuppers, yes 2 or so inches is where it is at. You can add some pig-pong scupper drains to prevent water from coming in. However you need to concentrate on possible transom issues first. There are several well documented forums on transom issues.

[spookybass]

I have an 81 1820 and from your original post your transom is sitting more than 2 in above the water. My boat sits about the same as your pic indicate. If you are referring to the scuppers, yes 2 or so inches is where it is at. You can add some pig-pong scupper drains to prevent water from coming in. However you need to concentrate on possible transom issues first. There are several well documented forums on transom issues.

i guess i'm talking about the scuppers if that's the proper term(i'm still learning about boats)! there are two automatic bilge pumps in the rear so i don't think that scupper drains will be necessary. i was just worried because water keeps coming in more and more as the fishing day progresses outside of the golden gate bridge in california where we often fish! my friend is going to reinforce the transom this weekend. thanks all, for the help!

[ReelPlumber]

spookybass, I think what you are talking about is water coming over the transome next to the motor correct?

Scuppers are holes through the transome so the water that washes over the transome has a way to go back out instead of draining down in the bilge area and pumped out. The scuppers can have either flappers or pingpong balls that will not allow water to come in through them from out of the boat but will allow water in the boat to exit out. Kinda like a check valve.

Do a search on boat scuppers and you will see what they are and how they work. You should not rely just on bilge pumps to remove the water.

Is it possible to take some pictures of the inside of the back of the boat? Say where you would be standing if you were fishing off the back.

[spookybass]

spookybass, I think what you are talking about is water coming over the transome next to the motor correct?

Scuppers are holes through the transome so the water that washes over the transome has a way to go back out instead of draining down in the bilge area and pumped out. The scuppers can have either flappers or pingpong balls that will not allow water to come in through them from out of the boat but will allow water in the boat to exit out. Kinda like a check valve.

Do a search on boat scuppers and you will see what they are and how they work. You should not rely just on bilge pumps to remove the water.

Is it possible to take some pictures of the inside of the back of the boat? Say where you would be standing if you were fishing off the back.

it'll be a little while because i have a busy two weeks coming up and my friends live about an hour away, but as soon as i can i will take some pics. my buddies can't figure out how to post pics, so they won't take any! i keep telling them to live in the now!

[spookybass]

spookybass, I think what you are talking about is water coming over the transome next to the motor correct?

Scuppers are holes through the transome so the water that washes over the transome has a way to go back out instead of draining down in the bilge area and pumped out. The scuppers can have either flappers or pingpong balls that will not allow water to come in through them from out of the boat but will allow water in the boat to exit out. Kinda like a check valve.

Do a search on boat scuppers and you will see what they are and how they work. You should not rely just on bilge pumps to remove the water.

Is it possible to take some pictures of the inside of the back of the boat? Say where you would be standing if you were fishing off the back.

here are some pics i was able to take because i snuck in a trip before going to a wedding!

This post has been edited by spookybass: Aug 9 2010, 05:01 PM

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[spookybass]

Yes they are right about the moving of the extra weight but a pic is a must for me to see what they did. Some of the dealers would CUT a transom just so they can sell the 20 inch motor they had in stock rather than putting on a 25 inch motor. I know the extra weight of the 4 stroke effects the attitude of the boat and it can be adjusted by moving some weight but the size of the motor leg makes a BIG difference.

WE can help with this and when you take pics PLEASE do some in the water and on the trailer. Take a few from the back,side and in front of motor both in and out of the water. Also place a paint steerer stick on the bottom of the boat with the other end almost touching the motor when the cavation plate is level with the bottom. (IMG:style_emoticons/default/cool.gif)

my friend dave measured the out drive anti cavitation plate againts the bottom of the boat and it was within the manufacturers specs. here are some pics of what he did to repair the transom and just a few of the 180 in general. do you think this solved the transom problems or is it just a temp fix? it has a garboard drain and supposedly new aluminum 17 gallon tank, but still having some type of fuel problem with the main tank!

This post has been edited by spookybass: Aug 9 2010, 05:15 PM

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[mrrobalo]

Thats good the cavataton plate is even with the bottom of the boat. As far as the transom repair it will probly get you by for a while. I f and when you do a new transom I would look for a 25 inch lower unit and that will raise the transom approximately 5 inches so that will take care of the water issues,and you can sell your and re-coop most of the cost of the 25" leg.
Once that is done you can make a rocket launcher to the field fix system.
The 4 stroke is a lot of the weight problem and well you will just have to live with it for a while.
Good luck. (IMG:style_emoticons/default/cool.gif)

[Steve911T]

Thats good the cavataton plate is even with the bottom of the boat. As far as the transom repair it will probly get you by for a while. I f and when you do a new transom I would look for a 25 inch lower unit and that will raise the transom approximately 5 inches so that will take care of the water issues,and you can sell your and re-coop most of the cost of the 25" leg.
Once that is done you can make a rocket launcher to the field fix system.
The 4 stroke is a lot of the weight problem and well you will just have to live with it for a while.
Good luck. (IMG:style_emoticons/default/cool.gif)

I also found that the 4 stroke engine was heavier, but the biggest problem was the 800 pound of water saturated foam in the hull. I have a 4 stroke 140 Suzuki, 2003, and after the boat was rebuilt, with a higher transom, it sat just like it did with a 175 2stroke Evinrude. The boat is a 19'6" CC 1972 that I have owned for 35 years. Steve