SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: AMG on March 22, 2012, 09:29:43 AM

Title: HELP!!! Crossed positive and negitive terminals on my battery
Post by: AMG on March 22, 2012, 09:29:43 AM
TOTAL BONEHEAD MISTAKE!! and feel like a total dummy! Went out to the river this weekend to do some wrenching on the boat, drop it in the water and do a test run. Then tow it home to replace the floor. Well in my rush to get everything hooked up and in the water before the rain started again I swapped the wires on my No.1 battery. I flipped the switch and immediately saw my wires glowing red, tried to flip the switch back off but it erupted in white smoke and was going for a good 15 seconds before i could reach back in and shut it off.
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Visible damage:
Positive wire from #1 battery to switch melted
Positive wire from #2 battery to switch melted
Negative wire from #1 battery to ground melted
Negative wire from #2 battery to ground melted
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The common wire from the switch to the starter stayed intact.
The stereo wires both positive and negative which were connected to #2 battery both stayed intact.

I replaced the switch with a new perko
New positive wires for #1&2
New negative wires for #1&2
New common wire, switch to starter.

2 new batteries
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Hooked up everything yesterday for a test fire, stereo worked, But I got no response from the motor.

What else do i have to replace? My thought is the starter, but this board has the knowledge, I don't. Any advice is helpful, I'm trying my best not to take it to a shop and spend unnecessary money.

Thanks in advance,

Aaron



Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: 75 fantasy on March 22, 2012, 09:50:07 AM
hate when i do something like that when in a hurry :banghead:

what about the ignition switch wire or key switch? time to get out the test meter and buzz it out or see where the power stops flowing. sorry thats all i have. good luck  :thumbup:
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: AMG on March 22, 2012, 10:07:28 AM
hate when i do something like that when in a hurry :banghead:

what about the ignition switch wire or key switch? time to get out the test meter and buzz it out or see where the power stops flowing. sorry thats all i have. good luck  :thumbup:

Key switch, Ill look into it
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: mobboss on March 22, 2012, 10:12:31 AM
starter should be fine.
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: ka0tyk on March 22, 2012, 11:16:05 AM
if its a HEI distributor theres a chip inside under the rotor... thats probably toast once you slapped some positive juice up the negative...   you can crank it over and pull a plug and see if you're getting spark.
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: AMG on March 22, 2012, 01:18:25 PM
if its a HEI distributor theres a chip inside under the rotor... thats probably toast once you slapped some positive juice up the negative...   you can crank it over and pull a plug and see if you're getting spark.

it wont crank at all or i would try that
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: ka0tyk on March 22, 2012, 04:43:04 PM
it wont crank at all or i would try that

starter or starter solenoid.  use a jumper wire from the battery to test em. 
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: AMG on March 22, 2012, 09:23:15 PM
starter or starter solenoid.  use a jumper wire from the battery to test em.

this may be a dumb question but how would i go about that? just a direct connection from battery to the solenoid to see if it clicks over?

thx,

Aaron
Title: Re: HELP!!! Crossed positive and negitive terminals on my battery
Post by: AMG on March 22, 2012, 09:48:51 PM
never mind, youtube handled that question. Ill give that a try tomorrow.
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