TNT relay assy question..

[bob johnson]

I have a T-H Marine Hydraulic jack plate on my 20 ft Lowe mod V. after less than a year the relay system from TH Marine failed...I bought another, and a year later it failed...so in a pinch I wired in an extra TNT relay box from a 1988 evinrude 70 HP, I had on hand...

it has worked ever since!!!...but it is a wiring mess... and quite frankly I cant even remember how I wired it to work...because there are several wires coming off the box that are not being used! Any way.... I am rebuilding that boat as we speak. I am totally rebuilding the transom and the floors and I want a nice clean neat relay system to run the jack plate.....as it happens I have several mid 90's J-E 60 degree looper motors in V4 and V6 as parts motors. they have a neat package for a TNT relay assy on the front of the motor.....could I wire one of those up like a did the older "box" from the 88 70 hp????

I guess, I could tear one down and try and figure it out, but I figured id ask here.... before I need to get that part of my rebuild taken care of.

bob

 

[bob johnson]

OK, then you have an older pump then the one you started with. You can either rewire it or take the relays off yours and install them on the other, or change wiring

sorry to jump in here.... I picked up a bayliner parts boat and it has a trim pump and a switch...I imagine just like these here...

my need is for a power up and power down relay set up for my TH Marine hydraulic jackplate. The factory relays are junk and in the first 3 years I went through 2!! they are about $140 !!!
they look like this:

after the last one died, I Gerry rigged a 1988 Johnson 70 hp TNT box.... into the wiring and it worked like a charm to this day( 5 years)... and that looks like this:

but there are a lot of extra wires flopping out of the boax and it doesn't look neat even though it is hidden...


can I wire my mercruiser trim pumps relays to work my jackplate.... and use the switch from the bayliner...

if so....how would it get wired???

hope to hear from you

bob

 

[alldodge]

Hi bob, ya know you should start a new thread.

But to answer the question, what you have above is in the pic below and using the standard sealed relays. Relays are relays and most all work the same why, they just have larger or smaller contacts. The larger contacts (such as with trim pump motors) can handle more current. So yes just get some of the trim relays or even the marine starter solenoids and wire them just the same

 

[bob johnson]

Hi bob, ya know you should start a new thread.

But to answer the question, what you have above is in the pic below and using the standard sealed relays. Relays are relays and most all work the same why, they just have larger or smaller contacts. The larger contacts (such as with trim pump motors) can handle more current. So yes just get some of the trim relays or even the marine starter solenoids and wire them just the same

looking at the wiring off the relays...I almost looks like a DPDT switch I bought....that is momentary to run my jackplate.... but I was thinking the relays would still be needed....but when I read the start of this thread, I thought about my free mercruiser parts!!!

as for the new thread...sometimes it is way more productive jumping in while a replier is still fresh, and pick his brain... it is entirely possible a new thread might not have caught an eye I needed........ I have been here for quite a few years. And I know the mods like NEW THREADS.....but time after time...I get more info off an active thread than my own starts


bob

 

[GA_Boater]

Bob - You are hijacking with a completely different issue. Your setup is trying to make a mish-mash of parts to work and has nothing to do with Bane33's thread.

Please stay in your thread and reply to the questions asked there. muc is waiting for an answer. Thanks.

 

[GA_Boater]

Changed my mind and moved the posts into your thread. Carry on.

 

[bob johnson]

Bob - You are hijacking with a completely different issue. Your setup is trying to make a mish-mash of parts to work and has nothing to do with Bane33's thread.

Please stay in your thread and reply to the questions asked there. muc is waiting for an answer. Thanks.

I thought he answered his own question....

look I am here to get and give info..... you guys make such a big deal about staying in a thread, but you know hundreds of post go so far off topic It is insane...I bet 20 % of most posts that go over 100 replies have nothing to do with the OP...

I am a doer... I work on boats all summer long... motors as well. and I help where I can which is often, plus I am absorbing info anyplace I can...I have 3800 posts...if you want to ban me go ahead....


I am just trying to get info...... many times my threads go un answered for weeks and disappear....but I can jump in and get info on another thread whats the harm...

who knows what triggers a guy to open a thread...maybe its the title...maybe its the subject....



bob

 

[GA_Boater]

Fixed it again.

BESIDES the question on the mercruiser trim pump wiring has nothing to do with the lenco actuators... it applies to wiring my TH Marine hydraulic jack Plate....and replacing the OMC tnt box

No kidding! The thread in question started by Bane33 had nothing to do with rewiring for the jack plate either.

Maybe if you acknowledged help, like muc answering your question, you might get better results. Also you can bump your own threads.

AllDodge - Thanks for helping Bob with his wiring.

 

[jakedaawg]

Is it possible that you have too much weight on your jack plate causing the motor to work too hard and pull too much juice causing the original relays to repeatedly fail?

 

[bob johnson]

Is it possible that you have too much weight on your jack plate causing the motor to work too hard and pull too much juice causing the original relays to repeatedly fail?

jack plate is rated MUCH higher than what I have on it.. I had a 320lb motor... I think it is rated for 500 lbs.....

 

[jakedaawg]

Well I guess it wouldnt be hard to use solenoids instead of relays. Find a box to mount them in and a place to hide it.

 

[bob johnson]

Well I guess it wouldnt be hard to use solenoids instead of relays. Find a box to mount them in and a place to hide it.

I have a place, but what does a solenoid do, and how is it wired??? the solenoids I have seen look to have exposed connections attachments...so even out of the way under a rear bench, id want to make sure if I put anything else into that area it didn't come in contact with the exposed studs... I guess I am not completely clear how a relay or a solenoid is taking power and signals and switching them to one place of the other....I am wondering why a DPDT momentary switch cant so the same thing......not strong in electrical....probably know enough to get into trouble!

bob

 

[jakedaawg]

Is the jack plate motor two or three wires?

The solenoids would be wired up like the tnt on an old alpha one. Solenoids can carry more current than the typical relays.

 

[interalian]

If you need the relays to do a polarity change like on newer 2 relay setups, the solenoid would need to be SPDT (single pole, double throw). Solenoids like on the starter are SPST.

 

[bob johnson]

Is the jack plate motor two or three wires?

The solenoids would be wired up like the tnt on an old alpha one. Solenoids can carry more current than the typical relays.

the jack uses a 2 wire deutsch plug to the unit from the relay...

if you look at the picture above you can see the original relay harness uses 2 relays....they are the square boxes inside the encapsulated black frame.

 

[jakedaawg]

Well, any two wire TNT relay or solenoid set up will work.