SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: Tio Pancho on September 09, 2011, 10:18:57 PM
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Heres the rundown - Bebo has promised his boat to the Boy Scouts for an outing next weekend. I think we are REALLY close to firing it but need help figuring out the wiring. I have looked through the site, but don't see (or maybe dont understand) one that fits our scenario.
The motor is a BBC. We are not running an alternator for now because we cannot get one to fit with the rail kit/motor plates and the logs which angle downward. We have a Mallory Pro Comp 9000 dizzy which has a three wire connector on it. W have a 6AL box but are not running it for now due to time constraints and figuring out a mounting method .
The wiring harness seems complete from the dash to the terminal block. Any help is greatly appreciated. We are going to bust our butts tomorrow to make this happen for him.
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Heres the rundown - Bebo has promised his boat to the Boy Scouts for an outing next weekend. I think we are REALLY close to firing it but need help figuring out the wiring. I have looked through the site, but don't see (or maybe dont understand) one that fits our scenario.
The motor is a BBC. We are not running an alternator for now because we cannot get one to fit with the rail kit/motor plates and the logs which angle downward. We have a Mallory Pro Comp 9000 dizzy which has a three wire connector on it. W have a 6AL box but are not running it for now due to time constraints and figuring out a mounting method .
The wiring harness seems complete from the dash to the terminal block. Any help is greatly appreciated. We are going to bust our butts tomorrow to make this happen for him.
I don't know exactly what you are looking for, but....
It is really quite simple to get it wired to run.
The ignition switch should have a wire attached that says (I) on the switch (normally a purple wire). The (I) stands for ignition....This goes to both the positive (+) terminal on the ignition coil and the red wire on the distributor.
then on the negative side of the ignition coil will go to the green wire on the distributor.
There should be a tan wire (maybe dark brown) and that should go to a good ground.
Be sure to install a ballast resistor in series with the ignition wire coming from the dash before it goes to the ignition coil, voltage should be approximately 8VDC.
You will probably want to run a ballast resistor bypass for starting, this is simply a light gauge wire (like 14 ga.) from the (I) terminal on the starting solenoid to the positive terminal of the ignition coil (making it three wires attached to that particular terminal....
I apologize in advanced if I completely missed the question....
Good luck.. :thumbup:
GT
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THANK YOU! I think you just answered all my questions. I am heading home from work in a minute and will take a look, but I think we can make this happen. Woo Hoo!
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If anybody has any other info that might help my little pea brain please feel free to chime in. :thumbup:
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Heres the link to Mallory's site, Frank. I use it all the time. Number 005, scroll down a couple pages should give you enough information to get it running using a Ballast resistor and normal coil.
http://prestoliteperformance.com/Support/InstructionSheets/MalloryInstructionSheets.aspx (http://prestoliteperformance.com/Support/InstructionSheets/MalloryInstructionSheets.aspx)
I don't know if thats a Mallory Hyfire 6AL or an MSD box. If a Mallory, VERY simple, and no ballast resistor needed and would be easier to use it. If not, well, there's a crap shoot I haven't done.
Ray
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No altenator? With an electronic ignition is not going to pan out very well
Sent from my Samsung Galaxy S 4G
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So heres where we are now. We could not find a rotor for the dizzy. Nobody carries them and they are 2 days out. Waiting on a buddy to get home from work who has a stock HEI unit for us to borrow.
Nordie - what issues do you see with not running an alternator? Do you see us having issues with an HEI unit?
Just told Bebo that he might end up with O/T's sooner that I would like.
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An electronic ignition needs battery juice to keep the spark going...as long as the motor is running its going to take power from the battery...eventually the boat will lose power because the battery is being drained...then its going to completely peter out...it took alot of effort for me to get an alt to work with my motor plates, but I made it happen...i would strongly advise an altenator...if you were running a magneto it might be a different story
Sent from my Samsung Galaxy S 4G
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I have to agree with Nordie on this.
One problem with not running an alternator is even if it doesn't die from low voltage it WILL get harder to start after a short time (also, low voltage = high amps which can cause major problems).
I spent a week at Parker with alternator problems and was suprised how quickly my battery started to fail after charging.
You need to come up with a mount for the alternator even if it is only temporary.
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I understand what you are saying. We have been trying to find a way to mount one. We may end up with a different exhaust system right away so that we can find the room to mount one.
We did see a really bitchin low forward mount bracket at a boat shop near our house, but it will not let the front cover go on. Too dangerous to leave that way.
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Don't get hung up on putting the alternator where you think it should be....it'll run off of anything that spins...like the driveline perhaps. If you wanna tow it down here one evening, we'll fire up the mill and the lathe and make it work.....since it's for Bebo.....just bring some good beer.
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It would be tight time wise, but I would love to see that happen. Bebo just went to bed. He put in a 12 hour day today and was more than a little bummed that we did not turn it over. I will talk to him about it first thing in the morning. You available tomorrow afternoon? Thanks for the offer by the way.
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I'm available whenever you need me.
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Awesome. I will talk to you soon. :)
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Pics Frank pics my brutha
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Here is a pic of the front motor plate and the logs. Not much room there. This may all be changing. We had some major problems that depending on the cause and or resolution may change. Will put up new post describing that shortly.
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can you just turn the alt around and mount it to the engine plate with some spacer to get it to line up with the crank pulley?