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Jump to page : 1 Now viewing page 1 [30 messages per page] Muskie Fishing -> Muskie Boats and Motors -> Terrova smoking at plug

Message Subject: Terrova smoking at plug

Chain Gang

Posted 8/25/2015 6:31 PM (#781910)
Subject: Terrova smoking at plug

Posts: 489

I was running my terrova today at a full "10" when smoke started poring from the plug. Luckily it was noticed and I unplugged right away. Any idea what would cause this? It's a 36v 101lb terrova prob 4 years old.

Pointerpride102

Posted 8/25/2015 6:34 PM (#781912 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 16632

Location: The desert

I bet heat caused it.

That sucks!

Musky Brian

Posted 8/25/2015 6:35 PM (#781913 - in reply to #781910)
Subject: RE: Terrova smoking at plug

Posts: 1767

Location: Lake Country, Wisconsin

I don't know if it is related, but I have been previously told by Minnkota mechanics to *never* run at 10 unless it is a dire emergency

Chain Gang

Posted 8/25/2015 6:36 PM (#781915 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 489

It was only 60degrees out lol

R code

Posted 8/25/2015 6:45 PM (#781916 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 270

Location: SE WISCONSIN

Check all your connections and your breaker for corrosion of loose nuts

DonPursch

Posted 8/25/2015 6:58 PM (#781918 - in reply to #781910)
Subject: RE: Terrova smoking at plug

Posts: 540

Location: Leech Lake, Walker MN

Maybe not heavy enough wire at the plug for that much draw for that long of a period of time ?

Chain Gang

Posted 8/25/2015 7:07 PM (#781919 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 489

I think it may be from leaving it plugged in while charging. Here is a pic. I can't find any damage to the female end though.

Edited by Chain Gang 8/25/2015 7:10 PM

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achotrod

Posted 8/25/2015 7:50 PM (#781927 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 1283

Were you in heavy weeds? Any line wrapped around the prop shaft?

cave run legend

Posted 8/25/2015 8:08 PM (#781931 - in reply to #781927)
Subject: Re: Terrova smoking at plug

Posts: 2097

Leaving it plugged in won't have any effects. Did it not trip the circuit breaker?

Chain Gang

Posted 8/25/2015 8:17 PM (#781932 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 489

Didn't trip a breaker

danmuskyman

Posted 8/25/2015 8:23 PM (#781936 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 633

Location: Madison, WI

If the wire melted on the plug like that, it's very likely a connection was loose. The very fine strands of marine wire is hard to tighten properly.

tourneyman

Posted 8/25/2015 9:20 PM (#781945 - in reply to #781910)
Subject: RE: Terrova smoking at plug

Posts: 43

That is definitely evidence of a loose connection. Once the arcing starts the heat will transfer through the copper and start melting the insulation. Strip the wire back, make sure you twist the strands tight and secure the termination.

btfish

Posted 8/26/2015 4:51 AM (#781974 - in reply to #781945)
Subject: RE: Terrova smoking at plug

Posts: 410

Location: With my son on the water

That appears to be a Marinco Plug which are commonly used by boat manufactures. I learned Marinco Plugs are only rated for 40 amps and an 80 lb terrova which is a 24 volt draws 56 amps at full speed. (see the problem)

I had the exact same issue with my Tuffy so I upgraded to a Battery Tender Plug which is rated for 100 amp and 4 gage wire and soldered all the connections. (I checked the amp/length chart and 6 was questionable with the length I am running, I also put a master shutoff under my console). I haven't had a problem since.

I added the shutoff switch so I can easily turn off power to the TM which Minn Kota tells you to do when you are charging. I learned that chargers can emit some stray voltage or a voltage spike (not sure) which can damage the master circuit board in you TM.

Edited by btfish 8/26/2015 5:04 AM

mseybert

Posted 8/26/2015 6:10 PM (#782102 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 443

Location: Indiana

I had that very issue. The circuit board in the terrova had a short and was shot.

Chain Gang

Posted 8/26/2015 7:37 PM (#782116 - in reply to #781910)
Subject: Re: Terrova smoking at plug

Posts: 489

Ouch. Did you replace the whole motor or just the board.

Shep

Posted 8/27/2015 11:51 AM (#782179 - in reply to #781974)
Subject: RE: Terrova smoking at plug

Posts: 5874

btfish - 8/26/2015 4:51 AM

That appears to be a Marinco Plug which are commonly used by boat manufactures. I learned Marinco Plugs are only rated for 40 amps and an 80 lb terrova which is a 24 volt draws 56 amps at full speed. (see the problem)

I had the exact same issue with my Tuffy so I upgraded to a Battery Tender Plug which is rated for 100 amp and 4 gage wire and soldered all the connections. (I checked the amp/length chart and 6 was questionable with the length I am running, I also put a master shutoff under my console). I haven't had a problem since.

I added the shutoff switch so I can easily turn off power to the TM which Minn Kota tells you to do when you are charging. I learned that chargers can emit some stray voltage or a voltage spike (not sure) which can damage the master circuit board in you TM.

Ditto The wire likely loosened up over time, and the high resistance short created the heat. Good move to go to a higher rated plug and receptacle.

I make it a point to periodically check all connections and bolts on my boats and trailers. Saves grief like this from happening.

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