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Old 06 July 2009, 05:15   #31
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Thought you knew which bit the smoke was coming off?
Ah that was something a bit different. When trying to get the RIB started to get to the trailer my dad tried to use a bit of fuse wire as we had blown the two we had, turns out the fuse wire was 30amp instead of 20amp and a bit of smoke appeared before I could rip the leads off the battery.
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Old 06 July 2009, 05:39   #32
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Ahh, so where was the smoke coming from?
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Old 06 July 2009, 06:02   #33
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Ahh, so where was the smoke coming from?
The fuse
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Old 06 July 2009, 07:51   #34
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Ah that was something a bit different. When trying to get the RIB started to get to the trailer my dad tried to use a bit of fuse wire as we had blown the two we had, turns out the fuse wire was 30amp instead of 20amp and a bit of smoke appeared before I could rip the leads off the battery.
Is it since this 'smoking' that you have the probs ? Has somehting melted together somewhere - shorting things & blowing fuses each time you switch it on ? HAve I Missed something ?

You have my sympathy - I hate electrics - usually they take weeks to find the problem then fixed in a few minutes ! The problems are mostly simple in my experiance - most engine electrics are also simple - but not when you have hundreds of simple things running off the same wires !

Good luck
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Old 06 July 2009, 08:29   #35
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No the smoke was after this all started as we needed to get the RIB back to the trailer.
It's the ultimate ball ache!

Used a little 2.5hp to move it in the end. And it went really well. Just kept flying off the transom as it had nothing to grip on to.


With the neg wire sparking so bad when it touches the neg terminal on the battery. Could this be something to do with the Stator ?




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Old 06 July 2009, 09:20   #36
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Sounds to me if its sparking when you connect the battery then either something large is trying to pull power all the time (even with the switches off) , or there is a big short somewhere !

Probably not much help - but if I was closed I'd offer to come round & help (drink tea while looking at it and agreeing something was not right)
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Old 06 July 2009, 09:41   #37
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I offered to do him a breakfast and watch my brother work on it but apparently he's having to use his trailer to put a boat mould on.
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Old 06 July 2009, 09:45   #38
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Never forget the more tea you drink while looking at a problem like this is directly proportional to the chances you have of fixing it !
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Old 06 July 2009, 15:22   #39
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John - are you getting anywhere? I think you might be on a red herring looking for the fault with the starter solenoid. I've just looked at your wiring diagram, and the fuse does not just protect the starter circuit - but I think all the gauges/instruments/alarms etc too. i.e. its one fuse for everything that is turned on when the engine is on.

In terms of the "short" you are looking for. If it blows a 20A fuse at 12V it will have a resistance of ~ 0.6 Ohm. I would be suspicious of anything reading less than 1 Ohm on a cheap multimeter, and would probably expect each circuit to be >3-4 Ohm so that multiple things can be on at once.
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Old 06 July 2009, 15:57   #40
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John - are you getting anywhere? I think you might be on a red herring looking for the fault with the starter solenoid. I've just looked at your wiring diagram, and the fuse does not just protect the starter circuit - but I think all the gauges/instruments/alarms etc too. i.e. its one fuse for everything that is turned on when the engine is on.

In terms of the "short" you are looking for. If it blows a 20A fuse at 12V it will have a resistance of ~ 0.6 Ohm. I would be suspicious of anything reading less than 1 Ohm on a cheap multimeter, and would probably expect each circuit to be >3-4 Ohm so that multiple things can be on at once.
I would agree, there is a short and a big one, and its absolutley nothing to do with the starter solenoid or starter .a neat trick i learned is to replace the fuse with a 21 watt bulb from a car indicator or a 55 watt headlight bulb. this allows you to connect the battery and wiggle all the wiring around/disconnect various wires until the lamp dims or goes out when you find the short. works every time for me cracking visual indicator and current limiter.
i would do this and unplug the remotes to see if the short is there, then everything else thet the red wire feeds starting with the rectifier pack which is a common culprit.
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