What's up with T&T??

[rickdb1boat]

Hey Guys<br /><br />1991 70 HP rude. Was out over the weekend and T&T just quit. No up or down on the water. So I pulled it out onto the trailer and checked to see what was going on and could find nothing wrong. Relay's were clicking and then I applied 12 Volt directly to the T&T motor and up and down it goes. Re-hooked wires back up to T&T motor. I've got 12 volts to the red wire, but when I jump or hit the T&T button(Which should send power to the motor) to the green or blue, I get nothing. This one has me baffled. No power from switch on control or at the motor switch. Am I missing something here? Worked fine until the later part of the last day. Any help or advice would be appreciated. Going back out this week on vacation if I can get it going. Any way to bypass the relay's and go straight to the motor with perhaps a switch? Hate to keep to keep opening the engine compartment and swap wires to the T&T everytime I want to raise or lower the motor. This is on my toon, BTW...

 

[rodbolt]

Re: What's up with T&T??

try a new set of relays.<br /> the system works by reversing the polarity through the relay. when you toggle one relay that relay toggles the ground path for the other. its not uncommon to have one fail and nothing happens. also make sure the 10ga red wires have 12 volts.so when you hit the 16ga blue up the up relay supplies 12v+to the 10ga blue wire and toggles the down relay to ground the 10ga green wire. its the same for down only the wire that gets + is green. check the relay grounds as well<br />good luck and keep posting

 

[rickdb1boat]

Re: What's up with T&T??

Thanks Rodbolt<br /><br />Got it all, except for checking the grounds for the relays. How do I do this?? Read the factory Manual and they don't mention this. Have 2 new relay's on order, but it will be a few days before they come. Is there a way to jump from the relay holder to the motor to verify? Thanks, <br /><br />EDIT: Do you know of anyway to jump directly to the motor using a DPDT switch just in case the relays don't do it?

 

[rodbolt]

Re: What's up with T&T??

yes<br />using jumper leads from the 10ga blck socket to ground on one and the 10 ga blue or green on the other.also check the 16 ga blk wires between the sockets.<br /> good luck and keep posting<br />ps the 2 pin socket between the relay assy and the motor did give problems.

 

[rickdb1boat]

Re: What's up with T&T??

Rodbolt<br /><br />Ya lost me there. Are you referring to the socket where I took the relays out? How do I know which is the 10 Gauge black "Socket" on the relays? Also. how do I also check the 16 ga blk wires between the sockets. I'm loosing it here.

 

[rickdb1boat]

Re: What's up with T&T??

 

[OBJ]

Re: What's up with T&T??

Rick....if memory serves, the ground stabs are the two longwise ones in the middle facing each other. There's a jumper from one to the other and a lead that goes to ground. The only way to get to it is to pull relay rack out. It's easiest if you disconnect all the TNT wiring.<br /><br />Don't ya' just LOVE that black crap they put all over the dam thing??

 

[rickdb1boat]

Re: What's up with T&T??

Thanks, OBJ. I guess the real question at this point, is can I hook up some kind of switch that will allow the motor to be raised up and down and how would I do this?? I'm talkin' about going straight to the T&T motor with a switch. Or will this short out something. I was thinking about a DPDT switch that would raise and lower the motor somehow through the battery. Kind of reversing the leads from the battery to the motor, but with a switch instead of manually doing it at the battery. Or will this screw up something??

 

[OBJ]

Re: What's up with T&T??

I guess ya' could Rick. But the switch would have to be really heavy duty to take the amps....especially in the up direction. I would use a minimum 10ga. wire to and from the sw. Hot to the center post of switch and Blue and Green off the outside posts. Spring return sw. would be nice. Wouldn't have to worry about a ground since the motor is already grounded.<br /><br />All in all, I think I would work at getting the current set up working. Might be a less pain in the patut.... On occasion, I've found that if you clean all that black crap off the contacts spades ya' can get it working again. Clean the contact spade connection on the two 10ga leads running to the motor to.<br /><br />I wish ya' luck buddy.

 

[DJ]

Re: What's up with T&T??

rick,<br /><br />To me, the way you describe it, you have a short between the switch and the T & T motor.

 

[rickdb1boat]

Re: What's up with T&T??

DJ<br /><br />Are you talking about the switch on the handle to the motor or somewhere in between ?? On the switch on the motor, Red is always hot and I get continuity between green and blue to ground when I hit the switch with the relays out. Same goes for the one coming from the handle. Gonna try relay's tomorrow and see what happens. I hope Rodbolt is right when he said if one goes out, the whole thing goes out. Any other suggestions would be appreciated....

 

[rickdb1boat]

Re: What's up with T&T??

~

 

[OBJ]

Re: What's up with T&T??

If rodbolt is right, that will be a new one for me. Think I'll take a peek at the wiring diagrams tomorrow and see what I been missin'.

 

[rickdb1boat]

Re: What's up with T&T??

Just wanted to let you know the outcome of the T&T problem. After going back through the Manual's diagram and doing some more Ohm work, I found out that I did indeed have a grounding problem with the relay board. A screw that holds the relay board grounds (Both), to the engine, which I still don't know where the screw originally was located, apperently worked it's way loose and the ground wires for both relays were just hanging behind the relay board. Pulled them out of their "hiding" place behind the board and bolted them back up to a good ground on the engine and off it went. All is well again and thank's to all who responded. Thank god that mess is over!