Substitute for Ether
#1026
RE: Substitute for Ether
ORIGINAL: chevy43
Very nice! What is the air temprature? Did you do anything special to start it?
Very nice! What is the air temprature? Did you do anything special to start it?
I do not have the electric starter to learn out the engine was possible to start up with the old fuel receipt from former soviet era. In the book, they used the rope to start the engine, also faster than hand starting and without to use the primer...
#1027
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RE: Substitute for Ether
I ran some straight diesel and oil at about 24C and it worked fine in my LA40. It would quit if the temp was lower....
I would think it would work better without the gasoline.
I would think it would work better without the gasoline.
#1028
RE: Substitute for Ether
ORIGINAL: chevy43
I ran some straight diesel and oil at about 24C and it worked fine in my LA40. It would quit if the temp was lower....
I would think it would work better without the gasoline.
I ran some straight diesel and oil at about 24C and it worked fine in my LA40. It would quit if the temp was lower....
I would think it would work better without the gasoline.
Diesel is heavily atomizing, then gasoline acts as a diluent (Reduce viscosity of the fuel) in the fuel.
With other word: Smaller drops of atomized fuel is easier to heat up by compression temperature under running condition.
#1029
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RE: Substitute for Ether
ORIGINAL: Motorboy
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
#1030
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RE: Substitute for Ether
ORIGINAL: Diesel Fan
Or 3. You could copy the DDD setup with a tangental grub screw locking the comp screw.
ORIGINAL: Motorboy
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
#1031
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RE: Substitute for Ether
ORIGINAL: Diesel Fan
Or 3. You could copy the DDD setup with a tangental grub screw locking the comp screw.
ORIGINAL: Motorboy
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
Two alternative..
1. Make center hole in the compression screw to prevent the screw are rotating out.
2. Make a locknut with lever to hold the compression screw locked.
#1033
RE: Substitute for Ether
ORIGINAL: nitroairplane
Would Gasoline in anyway effect the diesel knock?
Would Gasoline in anyway effect the diesel knock?
#1035
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RE: Substitute for Ether
Nice set-up. What kind of flight time can you get on 13 ounces of kerosene?
Also wouldn't it be easier to have two tanks in the plane? Maybe a two ounce tank filled with model diesel fuel and a 10 ounce tank filled with the kerosene oil mix. Seemed kind of tricky holding the tank and tweeking the needlle at the same time.
#1036
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RE: Substitute for Ether
I flew for about 25 minutes mostly high throttle and landed with 2/3 of a tank. I was guessing well over an hour, and that proved it. I only need 1/4 or 1/2oz of regular fuel to get it running. I'm working on a smaller auxiliary tank and a way to hold it on the airplane. Next is a cowl and crankcase oil.
#1038
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RE: Substitute for Ether
Over an hour! That is a lot of stick time. I hope you have a high capacity reciever battery.
I wonder how that compares to 13 oz of gasoline if your OS was converted to run of gasoline. Probably less than the diesel conversion since the compression would have to be lower to run gasoline.
Crankcase oil will be a challenge.
I have seen threads where people had oil circulating (in through the backplate and out the cam cover) through the engine from a tank, but I have never seen anyone actually have the oil just sitting in the crankase.
#1039
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My Feedback: (19)
RE: Substitute for Ether
Most castor oils intended for motor use will blend with kerosene and gasoline. They are not straight first pressing oils, but have been modified. One caveat, below a given temperature it will separate. This depends on the fuel you're blending it with. Check the tech sheet of the oil you're using. I have used castor oil. Mostly, I use a high viscosity synthetic though, Klotz R50. Contrary to popular belief, diesels do not need castor oil.