|Topic Review (Newest First)|
|08-17-2006 11:44 PM|
As a kid on a sail training ship we had a one cylinder diesel genny that we always started on a handcrank. It took a little practice but once you got the hang of it it went decompression, three spins, throw back the lever and voila! Perfect every time. To be fair, a one cylinder probably had a very heavy flywheel. Also the learning curve could be painful if you threw the lever at the wrong time and got a backfire. Wrist twist if you didn't let go, a crank in the chin if you did!
My folks also had a Lada car from Russia in the eighties that came with a crank and i tried that with sucess each time although to be fair, gas engines are easy.
|08-17-2006 11:28 PM|
|paulk||Have had several occasions where getting our 22hp Yanmar 3GM to start by handcrank would have been very convenient. Despite carefully following directions, releasing compression, cranking like mad, etc., not even a pop. We now carry a spare battery power-starter pack. It's easier to find and less rusty than the crank, though we haven't needed it...yet.|
|08-17-2006 08:35 PM|
My experience mirrors Omatako,
Little bitty Yanny on a nor'sea 27. The dudes batt fried. I (not a big guy) and two really big guys about died from exaustion, but coundnt get it to pop. It is to be said the little bugger did have compression release but the flywheel was pretty much non-existant.
Those volvo's have a good size flywheel and that might help. But for the most part.... just forget hand starting.
OH yeah, I miss the kick starts on bikes too.
|08-16-2006 03:57 AM|
Hand-crank a Yanmar ... Yeah, right!!
The next person to start a Yanmar 3GM30 on a hand crank will be the very first and if someone says they've done it, plug him onto a lie detector because I don't believe it. And if they pass the lie-detector test, test his compression next, the engine's probably knackered.
I tried on mine using every known trick (other than connecting it to my main sheet!!) and never even got close. The broken wrist is about right.
And this is a little engine.
|08-15-2006 10:55 PM|
he don't need no stinkin starter
Originally Posted by timebandit
|08-15-2006 10:06 PM|
|sailingdog||Hand cranking a diesel is generally a losing option. Much higher compression makes it much harder to crank a diesel, compared to a gasoline engine. A better idea would be to carry a emergency jump start pack... like this.|
|08-15-2006 02:08 PM|
|08-15-2006 12:01 PM|
Originally Posted by Cruisingdad
I'm guessing most engines fire on the compression stroke.
I read somewhere that some enterprising sailor rigged a line to the main boom and used the wind in the sail to pull a rope to start his engine.
Personnaly I would just sail over a water fall and pop the clutch about half way down
|08-15-2006 11:43 AM|
|Ronbye||I have started my Volvo MD2B engine on hand crank. To start the engine you need to have the engine rotating fast enough to get through the power stroke. Not easy if you don't have decompression levers. Mine does. Secondly, the heat in the comustion chamber needs to be hot enough to ignite the air fuel mixture, I don't have glow plugs. So for me, this means that I have to crank the engine over with the decompression levers on and keep cranking until I think there is enough friction heat available. When I think it is right, I turn off one compression lever while cranking. When it starts on one cylinder, the crank handle slips in its slot, allowing me time to remove it and turn off the other decompression lever and the engine is now running on two cylinders. It sounds easy, but it is very difficult physically. You need to be in shape for this. If you have any medical problems at all I wouldn't attempt it.|
|08-15-2006 11:22 AM|
|Cruisingdad||Just curious, how are you supposed to know that on a diesel? Also, I would think with the compression on a diesel, moving that thing at all would take a small act of God.|
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