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Diesel conversion Empty Diesel conversion

Post  cjuliano Mon Jan 09, 2012 2:30 pm

what type of fuel do you use with diesel heads?
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Post  nitroairplane Mon Jan 09, 2012 2:38 pm

MOdel diesel fuel.
Usually a mixture of: kerosene,di ethyl ether,castor oil and an ignition booster like iso propyl nitrate.

my diesel pee wee.
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Post  cjuliano Mon Jan 09, 2012 2:41 pm

where can i get it
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Post  nitroairplane Mon Jan 09, 2012 2:48 pm

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Post  cjuliano Mon Jan 09, 2012 2:56 pm

what does the nob on the head do
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Post  nitroairplane Mon Jan 09, 2012 2:59 pm

Diesels do not use glow plugs they rely on compression alone to ignite the mixture.
That nob is for adjusting the compression ratio.
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Post  cjuliano Mon Jan 09, 2012 3:05 pm

can i use a regular .049 sure start with a diesel head or should i get a regular diesel
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Post  nitroairplane Mon Jan 09, 2012 3:18 pm

What do you mean by "a regular diesel"?
You can convert a surestart but some have trouble with crankshaft breakages in which case you would want a killer crank from Bernie.
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Post  cjuliano Mon Jan 09, 2012 3:19 pm

i can buy one with a diesel head on it
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Post  nitroairplane Mon Jan 09, 2012 3:21 pm

Oh.
It is up to you.
But I do not really like the type of head that comes on it I much prefer the MECOA style as there are no counter gaskets to deal with.
If you go with the one that is already diesel you should cut out some aluminium counter gaskets to replace the Teflon ones.
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Post  cjuliano Mon Jan 09, 2012 3:30 pm

what size prop can i use on a .049 diesel
and how can i change the crank shaft
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Post  nitroairplane Mon Jan 09, 2012 3:34 pm

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Post  cjuliano Mon Jan 09, 2012 3:58 pm

where do i get the fuel
i am in the US
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Post  Godsey3.0 Mon Jan 09, 2012 4:02 pm

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Post  nitroairplane Mon Jan 09, 2012 4:03 pm

Davis diesel development.
Aerodyne.
redmax.
Eric Clutton or you can easily mix your own.
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Post  nitroairplane Mon Jan 09, 2012 4:05 pm

However I cannot recommend Davis fuel as nobody knows what his mix is so who knows if there is enough oil?
Or the right oil?
Or for sure any oil lol only kidding on the no oil part.
Eric Clutton's mix seems best to me.
Or here is how to mix your own.
http://www.rcgroups.com/forums/showthread.php?t=1295580
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Post  Godsey3.0 Mon Jan 09, 2012 4:07 pm

I had a diesel surestart with regular diesel, not 1/2a. The choke tube had a restrictor on it. When I would throttle it down it would hydro lock. Never had that issue when it was on a tank.
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Post  nitroairplane Mon Jan 09, 2012 4:16 pm

Regular model diesel or automotive?
If there is not enough ether the fuel will not combust properly at low RPM an the enema will flood and stop
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Post  nitroairplane Mon Jan 09, 2012 4:50 pm

Oh yes this will be moved to cox discussion.
THis section is for practising how to post images ETC.
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Post  Godsey3.0 Mon Jan 09, 2012 5:10 pm

Sorry. When I said regular I meant not 1/2a. As in lower ether. It was davis. It slobbers like crazy. Especially my McCoy. So there is some oil. I hope to get a cylinder and piston with a throttle ring to try diesel with. Since it does not slow the engine down by lowering the amount of air pulled into the engine.


Last edited by Godsey3.0 on Mon Jan 09, 2012 5:14 pm; edited 2 times in total
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Post  nitroairplane Mon Jan 09, 2012 5:11 pm

Godsey3.0 wrote:Sorry. When I said regular I meant not 1/2a. As in lower ether. It was davis. It slobbers like crazy. Especially my McCoy. So there is some oil.

Oh OK then lol I was thinking.
"THIS IS SOMETHING BIG"
Yeah that happens something, How is the countergasket seal?
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Post  Godsey3.0 Mon Jan 09, 2012 5:16 pm

What is the countergasket?
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Post  nitroairplane Mon Jan 09, 2012 5:22 pm

That white piece of Teflon under the head.
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Post  Godsey3.0 Mon Jan 09, 2012 5:23 pm

When it is new it fits ok. When you run it for the first time it conforms to the shape of the contra piston.
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Post  nitroairplane Mon Jan 09, 2012 5:31 pm

I know.
It is just a few guys had problems with those.
I had a few.
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