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Cox Engine of The Month
Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
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Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Hello, I have an 0.049 RC Phoenix engine from EX Model Engines which I got for a flying wing (it's a long term project at this point). This engine has a throttle ring, a.k.a an acceleration control ring, on it and I have read that these things can cause the engine to overheat at low speeds and at idle since. Given the way they work, this seems very likely to happen if the engine is left to idle for any extended amount of time. I was wondering if this undesirable engine heating could be delayed, or ideally eliminated, by increasing the quantity of caster oil in the fuels that are normally used. I was planning on using Sig Champion 25, with 25% nitro and 20% oil, 10% caster and 10% synthetic, but now I am reconsidering that choice. I am thinking of increasing the caster oil content to 12%-15%. I am leaning towards 12% and possibly something with less nitro in it. For now, let's suppose I'll use the Sig Champion 25 fuel. I am aware that this will lead to the build-up of a varnish at a faster rate and so require more frequent engine cleaning, but if it offers a protective advantage, then that price is acceptable. I would be interested in your opinions on this. What oil percentage do you think would be desirable?
The increased caster oil quantity, since it will act as a coolant, is going to affect the idle. Specifically, it should make slower idle speed less stable, forcing higher idling speeds. It will also cool the glow head/plug at a faster rate. What have you done to counteract this problem?
Thanks
The increased caster oil quantity, since it will act as a coolant, is going to affect the idle. Specifically, it should make slower idle speed less stable, forcing higher idling speeds. It will also cool the glow head/plug at a faster rate. What have you done to counteract this problem?
Thanks
NewBee- New Member
- Posts : 4
Join date : 2019-07-04
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I use home blended 60/20/20 fuel with all-castor and have very good idle without engine overheating.
balogh- Top Poster
-
Posts : 4905
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Acceleration control rings etc
The only reason castor is used in cox engines is to
FORM varnish to protect the balljoint you should use
5% castor and 15% coolpower which contains all the
Ep additives you will ever need with the added bonus
Of less cylinderde varnishing this iwhat i use as the synthetic
Is virtually self cleaning
Rex f.
FORM varnish to protect the balljoint you should use
5% castor and 15% coolpower which contains all the
Ep additives you will ever need with the added bonus
Of less cylinderde varnishing this iwhat i use as the synthetic
Is virtually self cleaning
Rex f.
rex f.- Banned
- Posts : 40
Join date : 2019-07-11
Age : 81
Location : Scone nsw aust 2337
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
So if the Coolpower cleans the varnish off the cylinder, what stops it from also cleaning it out of the ball joint?rex f. wrote:The only reason castor is used in cox engines is to
FORM varnish to protect the balljoint you should use
5% castor and 15% coolpower which contains all the
Ep additives you will ever need with the added bonus
Of less cylinderde varnishing this iwhat i use as the synthetic
Is virtually self cleaning
Rex f.
I was led to believe that a certain amount of varnish was beneficial as it helped seal the piston to cylinder better.
Oldenginerod- Top Poster
- Posts : 4010
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I could not agree more..all-castor varnish makes up for material losses due to wear and thus helps retain compression. Balljoint is protected by caked varnish. Hence I will never use any synthetic oil in COX fuels only castor. At least my experience confirms the theory.
balogh- Top Poster
-
Posts : 4905
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
If you want to go slow an keep de varnishing your cylinders
Your problem if you want to go fast do as i have suggested &
I do go fast stop living in rhe past get with modern fuels & lubricants
As i have here is agood read for you r c groups Cox oil testing findings
Otherwise continue in your blind ways & antiquitated ways
Rex f .
Your problem if you want to go fast do as i have suggested &
I do go fast stop living in rhe past get with modern fuels & lubricants
As i have here is agood read for you r c groups Cox oil testing findings
Otherwise continue in your blind ways & antiquitated ways
Rex f .
rex f.- Banned
- Posts : 40
Join date : 2019-07-11
Age : 81
Location : Scone nsw aust 2337
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Thanks for the encouraging words and your considerate way of expressing your opinion Rex..to each his own.
balogh- Top Poster
-
Posts : 4905
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Stop living in the past life is too short do the read as i have
Suggested & go in with your eyes & brain in gear
This is the only way i can can offer as the true solution
Is to stop the blind leading the blind especially when confronted
With effutable scientific evidence
Thanks for listening
Rex f.
Suggested & go in with your eyes & brain in gear
This is the only way i can can offer as the true solution
Is to stop the blind leading the blind especially when confronted
With effutable scientific evidence
Thanks for listening
Rex f.
rex f.- Banned
- Posts : 40
Join date : 2019-07-11
Age : 81
Location : Scone nsw aust 2337
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I can assure you that is the general spirit of this forum...never before your arrival, however, a member has referred to another one as idiot and blind because of a different opinion. In my humble manners age, seniority and even expertise should not justify arrogant adjectives, let alone the expected politeness of newcomers. You may use whatever language you want but you will not find friends here with your introductory manners.
balogh- Top Poster
-
Posts : 4905
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Excellent i am sick or trying to communiicate wirh fools ,morons &
Those who are incapable of listening
Goodbye to the most ridiculous site i have ever hag the
Misfortune to contemplate belonging to
Rex f .
Those who are incapable of listening
Goodbye to the most ridiculous site i have ever hag the
Misfortune to contemplate belonging to
Rex f .
rex f.- Banned
- Posts : 40
Join date : 2019-07-11
Age : 81
Location : Scone nsw aust 2337
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Well, it was "quick and dirty" as they say...good bye Rex.
balogh- Top Poster
-
Posts : 4905
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
While it's certainly ok to disagree, it is not ok by any decent person's standard to speak offensively about others, using words such as "fools" and "morons". If you wish to behave offensively Rex, I suggest you find another group that finds your manner acceptable. You won't find that acceptance here as we strive to be a group of decent, polite and tolerant people who don't claim to be the ultimate authority in everything such as you have done. We don't need you. Unfortunately I happen to be stuck in the same country as you are, but I'm thankful that attitudes such as yours are not typical of our countrymen.rex f. wrote:Excellent i am sick or trying to communiicate wirh fools ,morons &
Those who are incapable of listening
Goodbye to the most ridiculous site i have ever hag the
Misfortune to contemplate belonging to
Rex f .
Oldenginerod- Top Poster
- Posts : 4010
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Rex you are only the second ever member in all my years here on CEFI I thought to ignore and hope moves along....you, old man, are a ....hat
fredvon4- Top Poster
-
Posts : 4009
Join date : 2011-08-26
Age : 69
Location : Lampasas Texas
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
rex f. wrote:Excellent i am sick or trying to communiicate wirh fools ,morons &
Those who are incapable of listening
Goodbye to the most ridiculous site i have ever hag the
Misfortune to contemplate belonging to
Rex f .
...exclaims the man who was puzzled by the "grey dot" and exits to the stage left.
KariFS- Diamond Member
- Posts : 2035
Join date : 2014-10-10
Age : 52
RE:Acceleration control rings
rex.f is a textbook example of delusions of adequacy.
Now that he has graciously relieved us of his load, he may have time to get some overdue help for his anger issues.
AMF...
Now that he has graciously relieved us of his load, he may have time to get some overdue help for his anger issues.
AMF...
66 Malibu- Gold Member
- Posts : 477
Join date : 2012-02-28
Location : Georgia
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I tried to stay clear of this, But now that our friend has decided to relief us of himself ( that clearly knows more than any of the people here that have ran and flown for years ) If your still Lurking Rex ole buddy here is a start for YOU .. https://www.mindtools.com/pages/article/newTCS_97.htm Please seak Help if not for you for the rest of the world !
getback- Top Poster
-
Posts : 10382
Join date : 2013-01-18
Age : 67
Location : julian , NC
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I gave up on Rex after his second post.
Too bad, I think he had something to offer, he just presented it as if he was God's gift.
Bob
Too bad, I think he had something to offer, he just presented it as if he was God's gift.
Bob
rsv1cox- Top Poster
-
Posts : 11075
Join date : 2014-08-18
Location : West Virginia
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Hmmm, at least this moronic fool knows how to spell and use proper grammar.
Ken Cook- Top Poster
- Posts : 5609
Join date : 2012-03-27
Location : pennsylvania
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
You must be happy rex. No more grey dots.
Levent Suberk- Diamond Member
- Posts : 2236
Join date : 2017-12-24
Location : Türkiye
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Yes obviously this person had a short fuse. However I could tell that they loved the Cox engine/hobby as we all do. There's no reason to be rude either way, period. Sad, never argue with a fool, cause there is no difference!!! Maybe he or she has some issues going on that we don't fully understand. All we can do now is wish e'm all good things and move on. Not defending this person what so ever!! I hate downer dribble!! Don't Worry be happy folks!! Onward and upward!!!! ,Mark
Mark Diedrichs- Gold Member
- Posts : 434
Join date : 2017-11-11
Age : 72
Location : fairfield ohio
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I feel bad for the original poster of this thread, NewBee, another newcomer. On behalf of us all, I want to apologise to them and explain that the type of behaviour demonstrated here is not normal or tolerated.
I hope NewBee sticks around and gets the information they're looking for.
Rod.
I hope NewBee sticks around and gets the information they're looking for.
Rod.
Oldenginerod- Top Poster
- Posts : 4010
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
Oldenginerod wrote:I feel bad for the original poster of this thread, NewBee, another newcomer. On behalf of us all, I want to apologise to them and explain that the type of behaviour demonstrated here is not normal or tolerated.
I hope NewBee sticks around and gets the information they're looking for.
Rod.
I agree Rod, to bad Rex stepped in with his usual negative comments and as the last straw set us all off. I knew one day it would all come to a head.
Hang in here Newbee, better days are coming.
Bob
rsv1cox- Top Poster
-
Posts : 11075
Join date : 2014-08-18
Location : West Virginia
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I believe that this is the same chap that proposed "Canola Oil" on the Barton site in a strange manner asnd then flipped at one of the responses.
http://controlline.org.uk/phpBB2/viewtopic.php?p=179680&highlight=#179680
http://controlline.org.uk/phpBB2/viewtopic.php?p=179680&highlight=#179680
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 70
Location : England
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
I opted out of this one too E.getback wrote:I tried to stay clear of this, But now that our friend has decided to relief us of himself ( that clearly knows more than any of the people here that have ran and flown for years ) If your still Lurking Rex ole buddy here is a start for YOU .. https://www.mindtools.com/pages/article/newTCS_97.htm Please seak Help if not for you for the rest of the world !
Thought your response was perfect.
Peace, Bro, Bob
dckrsn- Diamond Member
- Posts : 2750
Join date : 2010-10-21
Age : 71
Location : Long Island, New York
Re: Acceleration control rings, exhaust choking and engine heating, and fuel and oil mixes
ian1954 wrote:I believe that this is the same chap that proposed "Canola Oil" on the Barton site in a strange manner asnd then flipped at one of the responses.
http://controlline.org.uk/phpBB2/viewtopic.php?p=179680&highlight=#179680
Yep. Clearly same man and same manner. Seems we're not the problem. Let's put this to bed.
Anyone got any comments on the use of throttle rings?
Oldenginerod- Top Poster
- Posts : 4010
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
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