therobzilla
Active member
OK,
I have to move my motor up on the rear transom, I've done a bunch of searching on both this site and the internet.
I have pretty much figured out how to make the transom/jack plate, but what I'm reading there are come posts about moving the motor further away from the transom so here is my technical question: ](*,)
Background:
* The way I'm planning on making the jack plate it moves the motor about 2 -2 1/2" inches more away from the existing boats transom, and the plate will be adjustable. I can only get about an 1" of up travel with shims on the transom with having nothing to clamp the motor to, so I opted to use some aluminium angle slotted to allow for plenty of adjustment, milled them with slots and will allow me to dial in the height of the motor vs. the transom dept/height.
* The boat this is going on is a 12' Sears Gamefisher, with a 9.9 hp Johnson motor. The boat is stamped as rated for a 9.9 motor, and my over-sized rear end and rest of my body weighs 190 lbs. I don't store the trolling motor battery in the rear of the boat only the fuel container. Everything else is stored when fishing or other, in front of the middle seat to help with weight distribution.
* I don't have anything fancy on the boat like decks or such, basically a stock boat, normally it's just myself and my son fishing, and he weighs in at about 160 lbs soaking wet, I make him my ballast depending on how the boat is running.
* This is my first 9.9, I have been running a Merc 1979 7.5 hp, and it never got on a plane, but that didn't matter to me, as we are normally fishing on the Arizona Rim Lakes, which caps horsepower to 9.9, so basically the old motor just got me from point A to B. The lengths of both motors are the same, however, I have never really paid attention to transom heights vs. shaft lengths/anti-cavitation plates. Now with the new motor, I want to set it up correctly.
The question:
* What are any and all that you can or have experienced ill effects of moving the motor farther away from the transom?
Thanks =D> :mrgreen:
Rob
I have to move my motor up on the rear transom, I've done a bunch of searching on both this site and the internet.
I have pretty much figured out how to make the transom/jack plate, but what I'm reading there are come posts about moving the motor further away from the transom so here is my technical question: ](*,)
Background:
* The way I'm planning on making the jack plate it moves the motor about 2 -2 1/2" inches more away from the existing boats transom, and the plate will be adjustable. I can only get about an 1" of up travel with shims on the transom with having nothing to clamp the motor to, so I opted to use some aluminium angle slotted to allow for plenty of adjustment, milled them with slots and will allow me to dial in the height of the motor vs. the transom dept/height.
* The boat this is going on is a 12' Sears Gamefisher, with a 9.9 hp Johnson motor. The boat is stamped as rated for a 9.9 motor, and my over-sized rear end and rest of my body weighs 190 lbs. I don't store the trolling motor battery in the rear of the boat only the fuel container. Everything else is stored when fishing or other, in front of the middle seat to help with weight distribution.
* I don't have anything fancy on the boat like decks or such, basically a stock boat, normally it's just myself and my son fishing, and he weighs in at about 160 lbs soaking wet, I make him my ballast depending on how the boat is running.
* This is my first 9.9, I have been running a Merc 1979 7.5 hp, and it never got on a plane, but that didn't matter to me, as we are normally fishing on the Arizona Rim Lakes, which caps horsepower to 9.9, so basically the old motor just got me from point A to B. The lengths of both motors are the same, however, I have never really paid attention to transom heights vs. shaft lengths/anti-cavitation plates. Now with the new motor, I want to set it up correctly.
The question:
* What are any and all that you can or have experienced ill effects of moving the motor farther away from the transom?
Thanks =D> :mrgreen:
Rob