TRIM PROBLEMS-keeps shorting out-sparks off battery

Johnny_Utah_

Cadet
Joined
Apr 5, 2012
Messages
17
Ok this is probably a dumb question, but I am fairly new to boating, and I love this Forum since no one judges anyone on how much they know and it is simply boaters helping boateers, which is great.
Anyways, my Trim down works, Trailer button up works, but the normal Trim up only works for a second and then cuts out. And every once in a while, none of them work at all, it just clicks. So last night I replaced all the fuses, and when I hit the Trim button, I saw sparks fly off the battery and went to examine it and there was a little fluid leaking out of the Positive Wire (one of which goes to the Trim motor). I am assuming that this is my problem and that to fix the Trim all I need to do is replace the Battery and the positive cable running to the Trim motor. Could someone please give me advice to anything else it might be, or what else I might have messed up because of this issue.... Because I will be very upset if I replace the Battery and cables just to find out the Trim still doesnt work. I also heard that I could have damaged my Trim Limit Switch, and how to figure out if thats the case. Also not sure if it matters but the problem originally started when I was trying to plane out and every time I touched the Trim it shorted out the Motor, so I had to limp back to the dock with the Trim down (luckily Trailer button worked when in neutral). Also unrelated, but if someone could explain the circuit breaker 50amp switch on my Mercruiser. Someone told me I should reset it, and that it was hard to push, so I forced it really hard and now it is stuck in(is this going to be a problem?). But engine is runnning great with muffs on, Trim seems to be main problem now. pls any advice would be greatly appreciated!!!
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: TRIM PROBLEMS-keeps shorting out-sparks off battery

You need to have clean, tight connections on the battery, toss the wingnuts and get some regular nuts and use a wrench.

The terminal ends on the ends of the cables (don't forget each cable has 2 ends) also needs to be clean and tight on the cables. If not replace the cable.
 

Johnny_Utah_

Cadet
Joined
Apr 5, 2012
Messages
17
Re: TRIM PROBLEMS-keeps shorting out-sparks off battery

Thank you Oracle, you always have the answer for me. But I had another question: Is the circuit breaker reset going to be a problem for me? and also do you think I need to do anything else than what you said? Trim Limit Switch, ect.?
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: TRIM PROBLEMS-keeps shorting out-sparks off battery

Fix the problems you have first, then we can see what works and what doesn't. No reason to worry about what "They say" problems if your cables cure all the problems. You may not even need a battery. Have it load tested to see if it's still good, replace the cable if it's bad and see what happens.

PS, my name is Don, not Oracle, and I won't call you Cadet ;)
 

Johnny_Utah_

Cadet
Joined
Apr 5, 2012
Messages
17
Re: TRIM PROBLEMS-keeps shorting out-sparks off battery

Thanks Don, I appreciate it... I will change the cables and then let u know... and sorry, I'll get the name right from now on :)
 
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