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Old 06-16-2013, 10:03 AM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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Angry Opps ! Connected Battery Backwards

I have a 94 Maristar 225VRS With an Indmar LT1 Corvette engine.
Not paying attention : I connected battery backwards. By the slight oder of electrical frying ; it smells expensive ! Will anyone admit they were this STUPID and what you had to do to repair everything ????
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Old 06-16-2013, 10:06 AM
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j.mccreight@hotmail.com j.mccreight@hotmail.com is offline
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Hopefully it just tripped the breakers and not fried the ECM.
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Old 06-16-2013, 10:10 AM
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Quote:
Originally Posted by doemill1 View Post
I have a 94 Maristar 225VRS With an Indmar LT1 Corvette engine.
Not paying attention : I connected battery backwards. By the slight oder of electrical frying ; it smells expensive ! Will anyone admit they were this STUPID and what you had to do to repair everything ????
If you only connected it backward and didn't turn the key, you may have only fried the bridge rectifier in the starter. If you can smell burning under the dash as well, you may have smoked the MDC box for the gauges, the diodes used to protect the head unit and power amp(s) or other accessories.

If you turned the key, you'll need to hope the ECM isn't toast- that's the worst thing to do if the battery cables are reversed.
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Old 06-16-2013, 12:29 PM
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Seen this before with no damage, hope the same for you too.
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  #5  
Old 06-16-2013, 04:48 PM
FrankSchwab FrankSchwab is offline
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Quote:
Originally Posted by JimN View Post
fried the bridge rectifier in the starter.
I'm assuming that Jim meant "in the alternator".
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Old 06-16-2013, 04:58 PM
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Originally Posted by FrankSchwab View Post
I'm assuming that Jim meant "in the alternator".
Right- the chargy-thingy. Thanks- I have no idea what made me type 'starter'. I think I was having one of my spells.
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  #7  
Old 06-17-2013, 09:59 AM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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Thanks for the response guys. I did turn the key on and turned the engine over. I have gone as far as testing for power on the purple ignition circuit wire. There is power back past the engine connector. This purple wire goes to a splice into a second purple that goes to the alternator on one end. I tried tracing the other end but ran out of time. This boat has been so trouble free; I hadn't gotten a service manual. ( no electrical diagrams) I ordered one from Amazon yesterday. Hopefully it will have some in it. I do hope the burning smell was coming from the alternator. I'll keep you posted on progress. Thanks again !
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Old 06-17-2013, 10:34 AM
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Quote:
Originally Posted by doemill1 View Post
Thanks for the response guys. I did turn the key on and turned the engine over. I have gone as far as testing for power on the purple ignition circuit wire. There is power back past the engine connector. This purple wire goes to a splice into a second purple that goes to the alternator on one end. I tried tracing the other end but ran out of time. This boat has been so trouble free; I hadn't gotten a service manual. ( no electrical diagrams) I ordered one from Amazon yesterday. Hopefully it will have some in it. I do hope the burning smell was coming from the alternator. I'll keep you posted on progress. Thanks again !
I bet that using your nose would save a lot of time in finding the source of the odor. If you do smell burnt electrical odor at the distributor, remove it and have it tested, rather than just trying to start it. If the bridge rectifier is indeed damaged, you could do a lot more by sending AC through teh other electronics, especially the ECM and IC modules.
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  #9  
Old 06-18-2013, 04:09 PM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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This engine doesn't have a distributor
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  #10  
Old 06-18-2013, 04:15 PM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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I'm not sure ,not having any manual on this, is there a separate ignition module on this engine. I noticed a small module on the back of ECM?
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