Jumper Cables and My SHT

*mtrbtr*

Cadet
Joined
May 1, 2011
Messages
19
OK So this happened to me about 12 years ago when I first owned a boat. I was just out of college and had always wanted a boat since I was a little kid and finally had enough to buy one. It was a 1975 17' Trihull MFG I/O. Ugly on the outside but the interior was in perfect condition. Boat ran like a top. Anyway I bought it in June of that Summer and had a blast with it until fall and then winterized it and put it away. The following spring one saturday I decided it was time to unwinterize it and take it for a spin. I took it up to a little local lake. It was early in the morning and I am the only boat in the parking lot. The only other people around are the local fire department on the hill above the boat ramp doing training excersices. So I get the boat in the water, plug in.... Check, this check, that check. I go to start her up and of course the battery is dead. Well ok not a problem. I tie her up to the shore line go get the battery out of my truck and the jumper cables and jump the battery to the boat from the truck battery. She roars to life I unhook the jumper cables from the truck battery. I am checking guages making sure that the temp is right and the alternator is working and such. I turn around to see flames shooting up 4 feet in the air in the back of the boat...... What the?????? What did I do???? I go back and notice that I only unhooked the cables from one battery, not the other. Then I promply threw them on the floor where the positive and negative ends were touching each other....and yes I knew better....I have probably jumped 100 cars before and I go and do this in my beloved boat. Any way I quickly unhook the battery cables and bail water INTO the boat. The fire is quickly put out. I turn around again just in time to see all of the firemen running down the hill towards me and my boat. Boy I felt like an idiot. Of course by then I had the fire out and but still had to tell the firemen what happened and get the big lecture from them. Boat was actually ok other than the big black streak up the side of the motor box. I was very very lucky and learned a lot that day. Had that boat for another year or two....I have had 3 more since then. I have a few other SHT's but mostly the normal ones that everyone has and haved learned from all of them. Boating is awesome and the stories are great!
 

greenbush future

Lieutenant Commander
Joined
Aug 28, 2009
Messages
1,814
Re: Jumper Cables and My SHT

I watched a dear friend do a pos/neg battery connect with a alum. fishing net in a garage, the spark caught a portable 3 gallon gas tank on fire, which he grabbed and tried to throw out the garage door. It hit the header, and landed on his new Buick Grand National trunk lid. Burned that trunk lid really good, but he was able to get it extinguished before the car went up in flames.
 

Beefer

Lieutenant Commander
Joined
Aug 4, 2008
Messages
1,737
Re: Jumper Cables and My SHT

Not boating related, but greenbush future's story reminded me of the time my neighbor decided it would be a good idea to add gasoline from a 5 gallon can to the bbq. Can caught on fire, he goes running with the can into his backyard, tosses it, flames go flying everywhere! He toasted a tree, the back (wood siding) wall of his house, and 1/3 of his roof. His wife divorced him shortly thereafter....
 

saumon

Lieutenant
Joined
Aug 2, 2004
Messages
1,452
Adding gas to a BBQ! He shouldn't be allowed to live...:banghead:

Envoy? depuis mon Nexus S avec Tapatalk
 

Pascal

Petty Officer 1st Class
Joined
Jul 9, 2002
Messages
252
Re: Jumper Cables and My SHT

OK So this happened to me about 12 years ago when I first owned a boat. I was just out of college and had always wanted a boat since I was a little kid and finally had enough to buy one. It was a 1975 17' Trihull MFG I/O. Ugly on the outside but the interior was in perfect condition. Boat ran like a top. Anyway I bought it in June of that Summer and had a blast with it until fall and then winterized it and put it away. The following spring one saturday I decided it was time to unwinterize it and take it for a spin. I took it up to a little local lake. It was early in the morning and I am the only boat in the parking lot. The only other people around are the local fire department on the hill above the boat ramp doing training excersices. So I get the boat in the water, plug in.... Check, this check, that check. I go to start her up and of course the battery is dead. Well ok not a problem. I tie her up to the shore line go get the battery out of my truck and the jumper cables and jump the battery to the boat from the truck battery. She roars to life I unhook the jumper cables from the truck battery. I am checking guages making sure that the temp is right and the alternator is working and such. I turn around to see flames shooting up 4 feet in the air in the back of the boat...... What the?????? What did I do???? I go back and notice that I only unhooked the cables from one battery, not the other. Then I promply threw them on the floor where the positive and negative ends were touching each other....and yes I knew better....I have probably jumped 100 cars before and I go and do this in my beloved boat. Any way I quickly unhook the battery cables and bail water INTO the boat. The fire is quickly put out. I turn around again just in time to see all of the firemen running down the hill towards me and my boat. Boy I felt like an idiot. Of course by then I had the fire out and but still had to tell the firemen what happened and get the big lecture from them. Boat was actually ok other than the big black streak up the side of the motor box. I was very very lucky and learned a lot that day. Had that boat for another year or two....I have had 3 more since then. I have a few other SHT's but mostly the normal ones that everyone has and haved learned from all of them. Boating is awesome and the stories are great!

It is for this very reason that I buy the longest jumper cables that I can find.

I cut off about 2 feet of one end of the positive cable and reattach the clamp. This keeps the cable ends from touching when they are dropped on the ground.

The cut end of the cables is the first positive connection attached and the last negative connector attached. Reverse for disconnecting.

The slightly longer negative end makes connection to the block or frame easier as that last connect made.

If you make your own, you can easily plan the short positive cable treatment on both ends...... Safety first!!!
 
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