Not from me, and not here.
but appreciate the help. let me make sure im clear.....it is
possible to find a model engine that runs off diesel only?
No.
It's simple enough. You're in the US, right? The first model diesel
motor was developed in the US, but diesels have never been popular
there - almost all model motors used there have been glow-plug
motors, which are not diesels. "Glow-plug" means diesel in the motor
world, but not in the model world - model glow-plug motors are more
like spark-ignition motors, gasoline, not diesels, they're made
differently and they use different fuel (alcohol and nitro methane).
Elsewhere model diesels have been more popular. These are true
diesels, compession-ignition motors, but they won't run on pure
diesel fuel of any kind, whether petro-diesel of any grade, kerosene,
or vegetable oil (castor) - they need 30% ether. You can use
biodiesel, but you still need the 30% ether.
You can also "convert" glow-plug motors to use model diesel fuel
(including the 30% ether), which is something Americans might want to
do, but other people will just get a diesel motor. Ed Beggs posted
the link to the company that sells conversion kits. You still have to
buy the glow-plug motor.
that message from your friend that you quoted keith, makes it sound
like the enya(spelling) engine i gave a link
This one:
http://www.modelflight.com.au/rc_model_accessories/enya_15ss_deisel_co
ntrol_line.htm
Yes, that's a diesel, it says so. Same as the others, needs ether
too. But it's expensive, and you're going to have to import it anyway
- that's an Australian site.
Get a PAW from the UK.
to would work....if not than those sites you provided would have
them....im confused
Why do you want the motor? You're after any diesel motor, right? What
for? To see if your biodiesel works? You don't need a motor to tell
you that. Make it right and check it with the usual quality tests and
it'll work. A motor won't tell you much anyway - you can chuck any
junk in a diesel and it'll probably "work", but for how long? Get
your BD to pass the quality tests, much more useful information.
Gregg Davidson, who's been posting here, has been using his biodiesel
in his gasoline lawnmower and gasoline cars at 10-15% concentration
until he gets a diesel car. Did you follow that thread? It's in the
archives.
Best wishes
Keith Addison
jeff
From: Keith Addison <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: [Biofuel] Model fuel
Date: Mon, 4 Oct 2004 12:50:38 +0900
I wrote to David Teal at the time. Like him, I was also playing
with model aircraft and tiny diesel motors 45 years ago, but unlike
him I don't still have them!
Here's part of his reply:
The Japanese produce well regarded model aircraft engines, but
practically all of them are glowplug ignition running on
methanol-based fuel.
These are NOT suitable for biodiesel as it will not mix with the
other ingredients.
Model diesel engines, with a compression screw on top, are mostly
made in UK (prominent makes being PAW and Irvine) and Europe
(Italy, Russia, Czech). USA is way down the list but Davies
Diesels offer conversion kits for many popular glow motors. In
Japan, I can only think of the Enya .15 cu in. diesel and I'm not
sure this is a current model.
The Chinese manufacturers are known for cloning engines from all
over, including some replicas of classic British diesels. Now that
they have come round to understanding metallurgy (expansion,
stiffness, wear properties) and the meaning of machining
tolerances, these actually work pretty well, if not better than
the originals. I suggest you seek out replica Oliver Tiger, Rivers
Silver Arrow etc. Chinese diesels.
They are 2.5 cc and there are loads of airframe designs wich will
suit them. There is also an original Chinese design called Silver
Swallow. The original was crap, but I have heard that they have
re-vamped it to good effect.
Here are some sites:
http://www.flairproducts.co.uk/Engines/CS_Diesels/VintageDiesels.htm
Vintage Diesel Engines
http://www.progress.charitydays.co.uk/
Progress Aero Works - Precision Engineering - Home of Eifflaender's
PAW diesel engines
We'll get one of these diesel motors and build a plane for it, very
useful for demos.
Best
Keith
Can you make a model aircraft engine run on biofuel? Jeffrey
Hello Jeffrey
Yes.
Well, mostly.
From: "David Teal" <[EMAIL PROTECTED]>
Date: Mon, 16 Aug 2004
Subject: Re: [wastewatts] Kero and Vegie oil mix ( was Re:
Ethanol / Methanol ( long ) )
Another field where we use kero (paraffin over here) mixed with
vegoil (castor) is model aircraft diesel engines. The usual mix
is 30% castor, 30% ether and 40 % paraffin. I have a good number
of these engines and have been operating them for 45 years. I did
some trials a year or two back and mixed 70% biodiesel with 30%
ether (no oil at all). Several engines ran perfectly well on this
mix with no overheating or other sign of lack of lubrication.
This tends to confirm poor lubricity of 'kero'. Aeolus
These are diesels. The glowplug motors (not diesels) run on
methanol and a brew of other stuff, some of it not very nice. I
don't know if you could substitute ethanol, but I think you'd need
the other stuff anyway.
Best wishes
Keith
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