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mark.bitterlich(at)navy.m
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 Posted: Tue Oct 24, 2017 2:19 pm Post subject: [Non-DoD Source] Re: Re: Mags off, still got fire... |
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I think you nailed it Dennis. Some pressure carbs do have IDLE CUT-OFF knobs to kill fuel at the carb. The Russian Pressure Carbs were not built with this feature. If you shut off the main fuel tank valve, which would be akin to shutting off the fuel with the EMERGENCY SHUT OFF VALVE in the YAK, you will run the pump, the lines, and the carb out of fuel.
Once that is completed, let's think about what it is going to take to start it again. Hmmm. Obviously it can be done, but the procedures as written sure are not going to work. It'll be a LONG time before you get system pressure. Plus on a hot engine, you will get the vapor lock from hell. You might start it on prime, and keep it going long enough to fill everything up again. Maybe. You try it. I'll watch and take pictures.
Mark
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dsavarese0812(at)bellsout
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| Posted: Tue Oct 24, 2017 4:07 pm Post subject: [Non-DoD Source] Re: Re: Mags off, still got fire... |
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Thanks Mark.
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 10/24/2017 6:17 PM, Bitterlich, Mark G CIV NAVAIR, WD wrote:
[quote] I think you nailed it Dennis. Some pressure carbs do have IDLE CUT-OFF knobs to kill fuel at the carb. The Russian Pressure Carbs were not built with this feature. If you shut off the main fuel tank valve, which would be akin to shutting off the fuel with the EMERGENCY SHUT OFF VALVE in the YAK, you will run the pump, the lines, and the carb out of fuel.
Once that is completed, let's think about what it is going to take to start it again. Hmmm. Obviously it can be done, but the procedures as written sure are not going to work. It'll be a LONG time before you get system pressure. Plus on a hot engine, you will get the vapor lock from hell. You might start it on prime, and keep it going long enough to fill everything up again. Maybe. You try it. I'll watch and take pictures.
Mark
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http://www.matronics.com/Navigator?Yak-List |
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