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Old 30-12-2011, 15:38   #31
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Re: Batteries too low to start the engine

I added a hand crank to my volvo md11c, a two cylinder 25hp diesel from the late 70's, during a rebuild. I hadn't realised it came with a $500 price tag. It was used this year when I was struggling with an intermittent electrical fault. It is impossible to turn the engine without opening the decompression levers and then will test your physical limits when cold. Bring the engine to max revs and drop one lever, watch your head doesn't fly forward and hit anything as you take up the extra strain on the handle.... the voice of experience. You will need an extra pair of hands to drop the lever or better still turn the handle.
I would think you could use the money more effectively. Be careful of adding more batteries before checking your alternator is up to the extra load.
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Old 31-12-2011, 11:41   #32
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Re: Batteries to low to start the engine

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Originally Posted by cal40john View Post
Then how do the car jumper battery packs work? You hook a small battery in parallel with a dead car battery and now the the small jumper battery is dead before you can hit the starter button. Perhaps you exaggerate?

John
Yeah, I have combined battery banks in a fix and managed to get the engine started that way.... not that you always will. Using the Batt switch for charging selection is a pain and creates the emergency you experienced.... easy to forget. Great new stuff out there to avoid these issues as mentioned above.
Some of my boats were setup with no starting battery but two house banks. I would just alternate use between banks. The engine was started with whatever bank I had selected for everything else ..actually worked fine.
Another boat had a big house bank and a starting battery. Basically I used the house bank for starting most the time and the starting battery was used for emergency. House banks start engines fine.
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Old 01-01-2012, 12:40   #33
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Re: Batteries too low to start the engine

I am loooking into buying a wind generator. Now that is another issue. So many on the market and will have to buy it in the States and carry down to Grenada. My batteries are seperated into the house, 4 6volt and the engine, 2 12volt. Also I may put in the automatic connection to seperate the two, they are manual now.
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Old 01-01-2012, 13:05   #34
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Re: Batteries too low to start the engine

I think the easiest solution after not letting it happen is to buy an automotive battery booster. They cost $70.

Hand cranking? It sounds like a turn of the century solution, just not this century.
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Old 01-01-2012, 13:23   #35
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Re: Batteries too low to start the engine

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I think the easiest solution after not letting it happen is to buy an automotive battery booster. They cost $70.
I keep one on the boat but they do need to be recharged every week or so. It'll go along with the ditch bag too, if I ever need it. It has an outlet for car chargers.
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Old 01-01-2012, 13:32   #36
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Re: Batteries too low to start the engine

I have two battery boosters in the states. Every time I went to use it it was down. Great idea but needs to be serviced also. When it was charged it did work though. Maybe carry one on the boat and charge it when ever we are running the engine for a back up.
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