alternitive to castor oil?

alternitive to castor oil?
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alternitive to castor oil? - 9/13/2003 3:47:05 PM

SpaceCase

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Is there an altinitive to castor erl? Was going to make my own fuel with full synthetic blend. Im useing it with a four stroke and really only need an aditive to prevent rust on my bearings and such. Anyone have any thoughts at all on additives to prevent rust to mix with fuel?

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RE: alternitive to castor oil? - 9/16/2003 3:54:39 PM

Pjtg0707

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Yeah. It's called Klotz. The ratio of Klotz to castor is 1:0!!

You can try adding a drop or two of castor if you really miss the gummed deposits in and out of the engine, which the castor followers called it 'protection' (

.

Save the castor for the medicine cabinet. Oh wait, even doctors stop using that crap since the 50's. Never mind!

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/17/2003 5:04:33 AM

downunder

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OK, here's the other viewpoint.
A rust preventative has to be what's known as polarised. This means it's attracted to metal surfaces sort of the way a magnet attracts iron. Some fuels have what they call a polarising agent added to it. This is the rust preventative and may or may not do anything in the way of actual lubrication. A non polarised oil (your usual synthetics) simply slides off metal surfaces over time leaving them open to both air and moisture. After run oils like ATF and Marvel are polarised but won't mix with methanol so that's why they're called after run oils. Obviously there must be some polarised additive that also mixes with methanol but you can bet the fuel manufacturers won't tell you what it is.

Castor....it's polarised, there's a plus. It mixes with methanol, another plus. If it gets too hot it breaks down into another lubricant instead of into it's components like synthetics do, another plus. It doesn't begin to break down until at a much higher temperature than synthetics (other than turbine oils) can handle, I'd call that another plus. See a trend here?

If you only want it for rust protection then only a very small amount, maybe 2%, of the total oil content can be castor.

< Message edited by downunder -- 9/17/2003 12:07:18 AM >

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/17/2003 5:21:12 AM

Pjtg0707

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>>A rust preventative has to be what's known as polarised. This means it's attracted to >>metal surfaces sort of the way a magnet attracts iron... snipped...

Well, I hate to break it to you, but water is polarized, and it attracts to others that are polarized, like castor oil! Methanol is polarized as well, and that's why water dissolves in methanol.

(in reply to downunder)

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RE: alternitive to castor oil? - 9/17/2003 1:23:32 PM

Hobbsy

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There will never be any fuel without castor at my house, I like my engines and they like castor.

_____________________________

Giant Saito, 73.2 Cu. In., 70.5HP @ 5,800 rpm, 79 ft. lbs torque @ 3,500 rpm, 57 mpg, 3.50 bore, 3.81 stroke. 563 lbs.

(in reply to Pjtg0707)

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RE: alternitive to castor oil? - 9/18/2003 4:08:31 AM

Pjtg0707

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quote:

There will never be any fuel without castor at my house, I like my engines and they like castor.

I'll give you $5 for those engines!

By the way, do you know the latin name for castor bean is 'Ricinus communis'?
Ricin, a dead neurotoxin, is derived from castor bean extracts. 'bet you you will never look at castor oil the same way again!

(in reply to Hobbsy)

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RE: alternitive to castor oil? - 9/18/2003 4:45:40 PM

downunder

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Pjtg...are you suggesting that hobbsy's engines are worn out because he uses castor? You've got a lot to learn

Yes, ricin is a deadly poison and it comes from the husk of the bean, the extracted oil is harmless. This is similar to the way that rhubarb leaves are poisonous but the stalk obviously isn't.

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/18/2003 10:37:51 PM

Hobbsy

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My two oldest Saitos, an .80 and a 1.50 plus an Enya .46 MKII spent the first two years of their lives running on Fox 15% fuel with 20% castor lube. Other than their exhaust valves being slightly golden in color and the mufflers being stained you'd never know. Before I knew better, so as far as I'm concerned that business about castor being bad for fourstrokes is pure unadulterated bunk. Look in the Everything Diesel forum and see where I ran the .80 on Diesel fuel just for kicks.

_____________________________

Giant Saito, 73.2 Cu. In., 70.5HP @ 5,800 rpm, 79 ft. lbs torque @ 3,500 rpm, 57 mpg, 3.50 bore, 3.81 stroke. 563 lbs.

(in reply to downunder)

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RE: alternitive to castor oil? - 9/19/2003 6:23:25 AM

Pjtg0707

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I could remember 10 years ago, and it' not that long ago, that most of the fuels sold in the USA had 22+% oil and most were 100% castor.

Back then, the 100% castor people were warning the real daring guys who were using 50/50 mixtures of synthetic/castor blends of ruined engines. Fast forward 10 yesrs to the present time, the same 100% people of yesteryears are now the 2% people of today, and they tell the same sad thing about ruined engines to the fully synthetic guys.

Now, if I could only convince Hobbsy all of his engines living on 20% are totally ruined, I'll be able to buy alot of engines for $5. I can really use your help on this one, downunder.

(in reply to downunder)

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RE: alternitive to castor oil? - 9/19/2003 8:59:35 AM

fiery

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Ever wondered why the Pylon guys still use fuel that contains 20% AA castor?

They operate engines that:

1. Rev high - almost to destruction

2. Run lean and hot

Both are conducive to very short engine life. The one oil that can best cope with this extreme stress in a model engine is Castor.

End of discussion.

(in reply to Pjtg0707)

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RE: alternitive to castor oil? - 9/19/2003 4:10:05 PM

Flyboy Dave

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Pjtg0707....

....go to the Klotz site...check in their own specs for the
engine protection....film strength, scuff protection....
lubricity....what ever you want to call it....

....Klotz rates their own Original Techniplate Oil....the one
we use, that mixes in methanol....at 50% ....their own
brand of castor, they rate at 100%.

I'll take that extra 50% protection....and dump it right
into my fuel, thank you....

....and BTW....sport fuels have never, ever been 100%
castor....

....at least not in Calif.

Dave.

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
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Revver Bro #4.

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/19/2003 4:17:08 PM

downunder

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I see your point pjtg and I've got this weird thing of collecting worn out engines that were never any good even new. So hobbsy, if you've got any of those trashy Doolings or the weird McCoys with that funny intake sticking out the back of them then you might as well recycle them my way.

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/19/2003 4:28:41 PM

Flyboy Dave

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Yo, Hobs....

....when Saitos first came out, Mr. Saito himself recommended
that his engines be run on pure castor. I ran an .80 on
a castor blend and never stuck a valve.

I agree with you....on the Bunko story....all my engines run
with a castor blend....

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to SpaceCase)

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RE: alternitive to castor oil? - 9/19/2003 9:40:05 PM

SpaceCase

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Ok Im convinced!!! Ill go with a good blend of castor. Can I degum my own, the kind you get for medical or is there somewhere online thats cheap anyone might know of? Thanks for all your help, I think running an engine on full synthetic could be bad for an engine, certanly if you ran it lean by mistake too.

(in reply to SpaceCase)

Post #: 14

RE: alternitive to castor oil? - 9/19/2003 10:57:08 PM

Flyboy Dave

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Call around to the motorcycle shops in your area.
That's where to by the good racing castor....don't use the
drugstore stuff.

Dave.

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to SpaceCase)

Post #: 15

RE: alternitive to castor oil? - 10/16/2003 7:37:17 AM

AdrianM

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From: Palm Harbor, FL, USA
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The 1/8th scale OnRoad R/C Car worlds just happened in Cincinati. All of the best drivers in the world where there. They use .21's that put out 3.5hp and can spin up to 40,000 rpm for short periods. What is the most prominent component of the oil on their tanks...CASTOR. The fuel they use is 40% Nitro 6-8% total oil (70% Castor/30% Syn).

Why?:

1. Castor is a detonation inhibitor. When you run 40% nitro all the time this is good.

2. Castor leaves varnish in the motor...and this is good. It protects the internals and promotes good cylinder sealing.

3. Castor is more effective at carring away heat than synthectic oils so motors run cooler and can be run leaner for more power.

4. As stated before..syn's breakdown way before castor does.

5. Castor has better film strength than any syn currently in use

6. Castor has better corrosion resistance properties than any currently used syn

Pylon, car and boat racers know this.

I fly all my planes on 15% Nitro 17% oil (80% Syn/20% Castor). You dont need to have 100% Castor to get its beneifts you just have to have some in there.

If guys want to run 100% Syn fine...have fun scoring cylinders and pistons, rusting bearings and wearing out rings. They don't know beans!

_____________________________

Adrian Martinez

(in reply to Flyboy Dave)