Truck was sitting 2 years before I got it. Once running it idles and pulls well, but it takes 2 to 3 fifteen second cranks to start each time. Batteries are fresh, I cant see any leaking from the IP. What would cause it to require that much cranking to start up? I plan to replace the FDC this week as well.
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Several Cranks To Start Cause?
- Thread starter SandBar
- Start date
- 10,146
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- Camp Wood/LC, TX
Is this your new multifuel dump? Is the in tank pump running strong? Is the hose from the in tank pump to the pump carrier in good shape?
Yes indeed it is the dump aka Tonk. With ignition on, I can feel the in tank pump running (side note, once started there is a horrible squeal until i turn the ignition back to the off position).
The hose from the pump: To inspect this I need to drain the tank or is it simply the external hose the exits the top of the tank?
The hose from the pump: To inspect this I need to drain the tank or is it simply the external hose the exits the top of the tank?
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Whatever is squealing needs to be diagnosed and fixed. To inspect the hose, remove the screws that hold the pump carrier and lift it out. Don't have to drain tank.
m715mike
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Where is the squeal coming from?
The belt on my Deuce is just slightly too big. On occasion, I get a horrible squeal on start-up. But it doesn’t last long.
The belt on my Deuce is just slightly too big. On occasion, I get a horrible squeal on start-up. But it doesn’t last long.
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Just a guess, but might start by looking at the alternator/alternator belt first. If there is heavy load(like charging the batteries) applied while the truck is running, the belt might slip, squealing as it does. When you turn off the ignition and it takes the load away the alternators resistance is less, and therefore not overcoming the traction of the belt/pulley connection, thus no squeal. I would check belt condition and tension first, then have alternator tested.
Good point, will check that too.
charlesmann
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The long cranks to start sound very much like a fuel delivery issue. Isolate your fuel system from the tank/s and use a 12 or 24 volt pump (simulating your in-take pump) , your choice, and pull fuel from a fuel can, with new hose running to the IP inlet and back into the same can. If it fires right up, then you might be loosing prime and or sucking air from inside your tank. My truck looses prime if i let it sit for more than a day, and i have to use manual prime pump to get fuel back to it.
charlesmann
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Iv got a bunch of -6 and -8 braided hyd line, and some -4. When i end up tearing into mine, I'm replacing everything i can with the braided hose. iv already got, it was getting thrown away, so i repurposed it. the military and faa may require a shelf life on the hose, but i don't.
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Multifuel doesn't have primer pump.
charlesmann
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i guess i should have specified, i don't have a multi fuel, i have an 8.3 cummins, so I have to prime mine.
Even if a piece of equip didn't come OEM with a primer pump, a person could add 1 if they are having issues with loosing prime. It doesn't have to be a manual either. I may even get a 24 to 12 vdc converter and put a FASS fuel pump, to help prime my system.
charlesmann
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It could be something as simple as that. I had an electrical component go out on my acft, and all bc of a simple ground, it caused me to chase my tail for a full day, and half the night prior. Sometimes, the simple things make us scratch our heads and wonder what the heck is going on
charlesmann
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Do you have a manual for the truck yet? A manual will help, and could answer your questions faster than waiting a on a reply here.
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How cold is it? Are you pressing down the throttle pedal a little while cranking?
My LDT engine is not super fresh. When cold I hold down the throttle pedal a bit while cranking. Usually takes 5 to 8 seconds I would estimate. It starts catching and if I have the throttle right revs will come right up. If I don't it takes a second try. Three if I am having a bad morning.
Instant hot restart every time no throttle press needed.
My LDT engine is not super fresh. When cold I hold down the throttle pedal a bit while cranking. Usually takes 5 to 8 seconds I would estimate. It starts catching and if I have the throttle right revs will come right up. If I don't it takes a second try. Three if I am having a bad morning.
Instant hot restart every time no throttle press needed.
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Yes that's it.