Blown fuse

[modrealtor]

My first post after finding this site. Thanks for providing such a service. hare's my motor number VJ175GLETG. It's a 1993 175 Fast Strike on a 1989 Bayliner Trophy Center Console. Here's my problem. I installed a ten inch
TH Marine Pro Hi-Jacker. Upon raising the assembly approximate 4 inches, I was going head to the local lake. i tried raising the motor using the switch at the motor to set the motor back to its cradle. No response. So i lifted the motor cover and checked the fuse. Yup blown. Replaced the 20 amp fuse and tried again. Dam, blew the fuse again. So I checked around the motor thinking it could be a crimped wire I never saw. The only two wires are the ones inside a fabric covered tube. It goes to the the box which has a single plunger which rides on a cam. The cam rides on cross shaft under the motor frame. It looked OK and was far away from being pinched. I then removed the three wires from the motor switch and tried from the console switch. Again blown fuse. I replaced the three wires to the motor switch and removed the three wires from the console switch. Went back and tried the switch from the motor. Again blown fuse. I then replaced the three wires to the console switch and removed both relays since the three wires were part of the five wires. Tried again with both relays out. Another blown fuse. I replaced both relays and un plugged the five pin plug this time. I went back to he motor switch and depressed the up button. Hurray it worked without blowing a fuse. So I've eliminated both switches, relays. What does the other wires go to which is causing me to blow the single 20 amp fuse. I need help now.

 

[mikesea]

Re: Blown fuse

Im confused,did you hook the unit to your trim and tilt system?yhe jackplate should be wired totally seperate,not using engine wiring

 

[modrealtor]

Re: Blown fuse

Sorry for th confusion. The jack plate is manual. After raising the plate is when I lost power to the trim button on the motor. Raising the jack plate was the last thing I did before trying to raise the motor for traveling. The jack plate should have nothing to do with the problem I'm having. It was added information only since it was the last thing I did.

 

[Chris1956]

Re: Blown fuse

if the fuse only blows when you try to trim the motor, I would look for a pinched wire in the trim harness. You should also check for a shorted motor. Disconnect the battery and check for a short across the motor at the trim solenoids.

You need to isolate it down to the trim system, since a short anywhere in the electrical system will blow the fuse. I had a shorted trim gauge wire under the dash and it blew the fuse.

 

[mikesea]

Re: Blown fuse

check the t-n-t motor wire ,is it possible the lift of jack plate caused wire to become cut somewhere

 

[modrealtor]

Re: Blown fuse

if the fuse only blows when you try to trim the motor, I would look for a pinched wire in the trim harness. You should also check for a shorted motor. Disconnect the battery and check for a short across the motor at the trim solenoids.

You need to isolate it down to the trim system, since a short anywhere in the electrical system will blow the fuse. I had a shorted trim gauge wire under the dash and it blew the fuse.

If it was in the trim harness then why would it work when I removed the five pin plug? The five pin plug has three wires from the trim button between both relays. I removed the three wire from the console button and tried from the motor. Still blew fuse. Replaced the three wires and removed the three wires from the motor switch. Then tried from the console to lift motor. Still blew fuse. For what ever reason, removing the five pin plug by it self, I could then raise the motor back to the carriage. So I'm thinking since the five pin plug has two wires unknown to me where they go, why would I beable to lift the motor when they are apart. Doesn't make since.


The manual jack plate is simple. Remove motor cover. Use two bolts and Nuts to secure sling. Lift motor until all four motor bolts are off. Move cherry picker back a few feet. Add jack plate install four bolts,washers lock washer and nut to transom. Push motor back to jack plate and secure with new bolts & nuts. Not a big deal. All the wire still in the same tube with fuel, battery and other wires within. Maybe a wire within the this tube is grounded. If it were a wire broken then something would not work. So what wires would be in this tube besides what I mentioned? I want to try to fix it myself so I understand what went wrong. Do you still think its the trim harness still? Someone tell me why I can raise the motor when I un-plug the five pin connection. Thanks

 

[HighTrim]

Re: Blown fuse

The 2 wires that you are unsure of are for a trim guage , which im guessing you dont have installed. Are they taped up? Secondly, a dirty or corroded fuse holder/line could cause the fuse to blow as well, inspect it. That 20 amp fuse controls a few other things other than just the tnt. Look for something arcing at your gauges, bow light, accesories, etc...

Something else that is confusing me, you say you can raise your motor with your tnt harness disconnected, are you talking at the remote or at the transom?

 

[modrealtor]

Re: Blown fuse

The 2 wires that you are unsure of are for a trim guage , which I'm guessing you don't have installed. Are they taped up? Secondly, a dirty or corroded fuse holder/line could cause the fuse to blow as well, inspect it. That 20 amp fuse controls a few other things other than just the tnt. Look for something arcing at your gauges, bow light, accesories, etc...

Something else that is confusing me, you say you can raise your motor with your tnt harness disconnected, are you talking at the remote or at the transom?

The five pin plug is within the motor cover and three of the five wires are the same for the trim switch and part of the wire harness. Three wires share both relays which I have no idea what they do. I'll take some pic's and post them tomorrow showing the five pin plug, the single fuse and relay. Attached is the photo showing the five pin plug and single fuse. The upper part of the plug has wires to the relays.

I'll check under the dash for arced wires, guages, etc. and around both batteries. It just has to be simple and I'm not seeing it. Too fustrated I think.

In the mean time, all my friends are stacking the Albacore 35 miles out of Half Moon Bay and I'm having motor problems. Yea, I'm wining.

 

[modrealtor]

Re: Blown fuse

Bump