50 hp tldi tohatsu

[redneckhillbilly]

50 hp tohatsu tdil

there is a ground wire that connects the engine to the mounting bracket on allunmin boats this makes the boat the ground and has caused the boat to start leaking from rivets and other places any help with this

 

[pvanv]

All outboards have grounded brackets to reduce corrosion. You can install a rubber pad to isolate the hull if needed. It is highly doubtful that your rivets are leaking because of that.

 

[redneckhillbilly]

the motor was installed by a dealer and when they removed the ground wire the boat stopped being the ground

 

[redneckhillbilly]

I have this motor on a 16 ft smokercraft and I have galvalicent corrosion as a serious problem with holes in the bottom of the boat and transom the motor has been on the boat for 3+ years. Before that I had a Johnson on it for 6 + years, no leaks

 

[pvanv]

Is there a sacrificial anode on the boat? There should be.

 

[pvanv]

Do you have proper anodes on the boat?

 

[redneckhillbilly]

yes to both of your questions

 

[pvanv]

Sounds like a different issue, Maybe stray currents in the slip at the marina, or a leaking battery charger.

 

[redneckhillbilly]

neither boat stays on the trailer and there is no battery charger on the boat

 

[redneckhillbilly]

I think its the motor using the boat for a ground

 

[pvanv]

Nope. If there isn't any electrical system on the boat, ground is irrelevant. Also, the transom clamp will always be ground, even without that wire. Something else is wrong.

 

[redneckhillbilly]

if something else is wrong why does the boat quit being the ground when this wire is removed

 

[pvanv]

if something else is wrong why does the boat quit being the ground when this wire is removed

Who told you that?

 

[redneckhillbilly]

no body told me the dealers mech showed me and he took a video of the work

 

[pvanv]

If he didn't use a galvanometer, or at least a very good analog ohm meter, there is no reason to assume that the hull was becoming a part of the 12 volt system.

 

[redneckhillbilly]

motor eating the boat

I am looking for any one that has a 50 hp tldi toahsu on aluminum boat trying to find out if I am the only having this problem which is the boat being the ground and its causing galvaninitc corrosion, with holes in the bottom and transom of the boat.i have pictures if necessary.

 

[GA_Boater]

Moved the new thread into your original thread.

Is any of the electrical equipment grounded through the hull? That is a sure way to feed the tin worms.

 

[redneckhillbilly]

nothing is grounded to the boat that I know of in fact I removed every thing and hooked up every one thing at a time and nothing until I hookup the motor

 

[redneckhillbilly]

you don't have to assume that the boat is the ground when holes start to appear

 

[pvanv]

What test instruments did you use?