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RE: RCGF Engines - 1/23/2013 1:20 AM   
mnourse26


 

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From: , NH, USA
Status: offline 		Hey guys. So i have been flying gas engines for a while now. jc 28cc DLE 20cc and 55cc. iam looking to get the rcgf 40cc tiwn. i need to replace the dle 55 cause it shakes my giant stick to much. all though its a blast with that kind of power. any body have anythoughts about the rcgf 40cc tiwn...or seen one run in person so you could speak of vibration for me. everything ive read about twins is there is less vibration. just wondered what peoples thought was about the 40 twin. i ask as i have never bought rcgf engine before. thanks for your help matt.

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RE: RCGF Engines - 1/23/2013 1:35 AM   
Captmicom


 

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Status: offline 		I find the RCGF 40 to be a very powerful engine. I have not run the RCGF 55cc single up against the RCGF 40cc twin yet. I can tell you that it halls my 90" test bed that weights 18 lbs around like it is nothing. I just restocked on all our RCGF engines and I am down to 1 ea. 40cc twin left. The Scale guys love the RCGF twins.

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RE: RCGF Engines - 1/23/2013 2:00 AM   
av8tor1977



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ORIGINAL: Captmicom

Thanx AHicks. I have not been able to get new replacement parts for the 50cc single engines from RCGF for some time now. I just used up the last of my NOS parts to repair a 50cc ''A'' model engine for a flyer in Ca. So I am taped out right now. As I said Gregg may have some still. If not we can probably find the left over parts elsewhere (aka) Hobby King or I still have contacts at SV Group that may still make parts for this particular engine.

SIDE NOTE: If I have mentioned this before sorry for the repeat! I have had a lot of repair work lately on engines that have set for a while with fuel in the carb. Some of this repair work might be avoided by running your engine ''DRY'' after you drain your fuel at the end of your flying day. Remember that the gas we have had to use for some time now has at least 10% alcohol/methanol in it and sometime more. The carb parts that were made to run with gas don't like this much and will go bad faster when left exposed to this fuel combo. This is also the reason we can't get much more than about 6 to 8 months out of our standard Tygon fuel line before it gets stiff and hard. We have developed fuel line and tank stoppers that are better suited to today's fuels but the carb parts are a much harder build.


I was having tons of issues with carb and fuel line problems, whether I ran them dry or not. Leaving them wet seemed to be slightly better than dry, but still, I have had diaphragms in the carbs go bad in as little as 6 weeks. (not months; weeks!). I finally came upon the perfect solution. After I am done flying, I drain my fuel out of the tank, and fill the tank half full with my "Storage Fuel", which is Coleman fuel with a dash of Sta-Bil, and 20:1 oil mix. I fire the engine up long enough to be sure the mixture has reached the engine, rev it a few times to be double sure, and then choke the engine to kill it. I then leave the "Storage Fuel" in the tank and engine. The next time I go to fly that particular airplane, I de-fuel the tank, removing the "Storage Fuel", and fill 'er up with my normal flying fuel. Since I have started doing this almost 2 years ago, all my carb and fuel system problems have ceased. I have had engines sit as long as a year or more after having been treated this way, and upon re-using them everything worked as it should; no problems. Note: I don't want to start, and won't participate in any arguments about flying with Coleman Fuel, but I strongly recommend against doing so. Note 2: Below is a picture of my Viagra treated fuel jug line. (Actually not Viagra, gasoline with today's gasoline and it's additives.)

Note 3: Some of the engine gurus in the forums will tell you there are virtually no compatibility problems with today's fuel and our fuel systems. Just think of them when you are at the flying field fighting with a balky engine because it needs a new diaphragm in the carb that has been damaged by today's gasoline or when you are dealing with a dead stick caused by a stiff fuel line in the tank when you flew inverted. I often repair yard equipment to earn extra money to supplement my income, and fully 90% of the problems I find with the machines are damaged fuel system components.....

Note 4: (Sorry, I just keep thinking of things to add.) This method has the added benefit that your airplane doesn't stink of gasoline during transport nor in storage!

AV8TOR

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RE: RCGF Engines - 1/23/2013 2:18 AM   
mnourse26


 

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Status: offline 		Captmicom i just cheked your site. And your out of the 40cc twin any idea when youll get some more in stock?

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RE: RCGF Engines - 1/23/2013 5:04 AM   
Captmicom


 

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Status: offline 		Hey av8tor,

Thanx for the tip!! That is not a bad idea..!! With the crap that gets put in to the pump gas these days the white gas would dilute all the "WOODY" stuff left behind from the pump gas on your engine parts and keep them supple until you are ready to fly again. I will give it a try. As for your "STIFF" fuel line and tank plugs, I have a new formula line and plug that is made to withstand the crap in today's pump gas. I have some on a hand pump that is now three years old and it is still very supple. It looks Ugly but is still very flexible. We will have the Watts-UP electric fly at TRCC in Tucson the 16 Feb if you feel like taking a road trip. Come on up and I will show it to you.

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RE: RCGF Engines - 1/23/2013 5:08 AM   
Captmicom


 

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Status: offline 		I just updated it...Sorry it was out of date. The engines go out almost as fast as they come in. I do have one 40cc twin left. Good luck

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RE: RCGF Engines - 1/23/2013 8:53 AM   
av8tor1977



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Status: offline 		Hi Capticom and thanks for the comments and the invite. Won't be able to make it to that event though due to other commitments. Also, electrics just don't interest me. I just got through writing to both Model Airplane News and NitroPlanes complaining about their extensive overboard coverage of electric flight, to the exclusion of Glow and Gas powered craft.

Just so nobody can say "Don't knock it until you've tried it", I do have two electric planes that we fly in the evenings after we're done flying the "Big Iron" during the day......

Thanks and take care,
AV8TOR

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RE: RCGF Engines - 1/29/2013 6:27 PM   
dadragon


 

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Status: offline 		I got the CM-6 plugs from my local chain saw shop.and speaking of all the crap in pumped gas is the reason I am into 100LL avgas mixed with a lil colman all my engines run clean,I'm at 6200ft and ALL my birds are giant to mammoth scale cubs and war birds,will be ordering a RCGF 40 twin for a 1/4 scale L-19 BIRD DOG,will let you know how they perform.

< Message edited by dadragon -- 1/29/2013 7:40 PM >

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RE: RCGF Engines - 1/29/2013 10:45 PM   
rt3232


 

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Over the years I have tried most all fuels available hear in the U.S. and have had all of the problems mentioned above etc:etc: but about 5 years back my flying buddy and I switched to 100LL Avegas ya it cost about 5 bucks a gal. But it does mot smell does not sour and if I buy gas late in the season and let it sit in my can for 5 + months of winter it works as well as it did when I bought it, Also it does not smell it burnes clean we use 2 mix's 50 : 1 and 100 :1 . Have not had any carb problems as I/we leave them wet have not had fuel lines get hard. but I/we do change them every outher season we have all gasser's 23 CC to 100 CC I am not saying this is the best way only that it wotks vary well for us, and has eliminated our fuel related problems.

Cheers Bob T

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RE: RCGF Engines - 1/31/2013 3:15 AM   
mnourse26


 

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Status: offline 		Hey guys got my 40cc twin today. mounted it to the test stand and ran the motor. just could not wait. started second flip of the prop. ran great...little to no vibration to speak of. Wont be able to see how much until i mount it to the plane but looks awesome so far. i cant tell you rpm cause my tach was dead. need a new 9v ...but wont matter aim waiting for my xoar prop to come in. i used a zinger 20x8 just to run it for now. once i get my xoar ill tach to see what aim getting for rpm. overall so far i very happy with the rcgf twin.

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RE: RCGF Engines - 2/2/2013 6:57 AM   
dadragon


 

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Status: offline 		RT;those are my engine ranges also,I get 10 gals of av100 and mix up 2 gals at a time.MNourse26 really glad to hear about your test run now I'm totally pumped on getting one,thanks for the report.xoar props are very good and quieter than the zings,I'v got a zing 26-10 four blade and man does it sing.

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RE: RCGF Engines - 2/11/2013 8:57 PM   
mnourse26


 

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Status: offline 		hey guys just i thought i would update the rcgf 40 cc twin info. So as i told you before i had tested the engine and it ran good. so today before i mounted it to the plane, i thought i would try running it with the carb down to make sure nothing changed. well the engine ran good and still runs good. But i also found out that one of the cylinder heads is leaking fuel. it does not seem to effect the engine that i know of but its brawn new and should not be doing this. seems like there is a seal broke. i bought it at bp hobbies and sent them a email. if the don't get back to me ill call them tomorrow. just though i would let you all know.

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RE: RCGF Engines - 2/12/2013 6:27 AM   
bcchi


 

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quote:

ORIGINAL: dadragon

I got the CM-6 plugs from my local chain saw shop.and speaking of all the crap in pumped gas is the reason I am into 100LL avgas mixed with a lil colman all my engines run clean,I'm at 6200ft and ALL my birds are giant to mammoth scale cubs and war birds,will be ordering a RCGF 40 twin for a 1/4 scale L-19 BIRD DOG,will let you know how they perform.


Why do you use the coleman fuel with the AV gas.I use ave gas as I live right by the airport,I cannot stand the smell of car gas.
Would love to have you come up to our fly in July.I think July 12,13,14,15, Two paved runways 5 25 ft awnings all with AC power.Will send out flyers later.
BCCHI

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RE: RCGF Engines - 2/14/2013 1:08 AM   
dadragon


 

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Status: offline 		BUCCI;thank you for the invite I think I will make it up to fly with ya and god willing and the creeks dont raise I'll have the 1/4 scale AD-SKYRAIDER will be done for Its maiden still working on the hydraulic wing fold plus get a line wet at Boysen.George.

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RE: RCGF Engines - 2/14/2013 3:15 AM   
MTK



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Status: offline 		It's not the gas...it's the yellow tubing. Chemistry is not conducive to keeping all the softening oil in the plastic. Gasoline (any type) removes the oil over time

Use urethane tubing designed for gasoline and your "stiffness" will go away

For anyone interested, I just received a new batch of PolyU tubing formulated for gasoline. I purchased quantity directly from the factory that makes it and got a small price break that I will pass on. PM or email me directly

Thanks


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RE: RCGF Engines - 2/14/2013 3:25 AM   
MTK



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ORIGINAL: rt3232

Hi All

Over the years I have tried most all fuels available hear in the U.S. and have had all of the problems mentioned above etc:etc: but about 5 years back my flying buddy and I switched to 100LL Avegas ya it cost about 5 bucks a gal. But it does mot smell does not sour and if I buy gas late in the season and let it sit in my can for 5 + months of winter it works as well as it did when I bought it, Also it does not smell it burnes clean we use 2 mix's 50 : 1 and 100 :1 . Have not had any carb problems as I/we leave them wet have not had fuel lines get hard. but I/we do change them every outher season we have all gasser's 23 CC to 100 CC I am not saying this is the best way only that it wotks vary well for us, and has eliminated our fuel related problems.

Cheers Bob T

I agree totally. I've not seen much negative over the past 3+ years that I've used avgas.

It does produce slightly less power than premium autogas. but that doesn't matter at all in my application (top level aerobatics)


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RE: RCGF Engines - 2/21/2013 10:56 PM   
rt3232


 

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Status: offline 		To all of you guy's I have finaly decided to put a bipe BARF (ARF)in the air, that has been in my shop for about 3 years about 70 ' W/S fuse about 65 all the parts on my scale less the inerds and engine just over 5.5 lbs. So I am guessing an all up wieght would be about 10 t0 14 lbs

So the question is what engine would you use I have axcess to a G-26 or a RCGF-26 I don't need a lot of virtical as I fly just for my own enjoyment/

Cheers Bob T

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RE: RCGF Engines - 2/21/2013 11:12 PM   
acerc



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Bob, either of those engines would be sufficient. I have a Sig 1/4 scale cub with RCGF 26cc and a 1/5 scale Waco with a RCGF26cc and a GP Super Stearman with a 20cc. They all fly great.



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RE: RCGF Engines - 2/21/2013 11:47 PM   
rebranger


 

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Status: offline 		I got your tubing, works great so far..time will tell
Ed 

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RE: RCGF Engines - 2/22/2013 12:50 PM   
rt3232


 

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acerc

I had a G-23 with the pld piont system, and I have no Idea how meny hours I qouit keeping tract after 500 flights and it was a great engine but it finaly got real tired tried the usal ring and piston helped but no cegar

My reason for asking is I hsve he that the G-26 ign system eats batteries and the RCGF-26 quaility were not as good as the ones that Henery broght in

Gheers Bob T

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RE: RCGF Engines - 2/22/2013 1:26 PM   
ahicks


 

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Status: offline 		Actually, they are/were exactly the same as the ones Henry brought in. IMHO, the biggest difference in the Aerovate engines was pure marketing hype.....

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RE: RCGF Engines - 2/22/2013 1:45 PM   
karolh


 

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ORIGINAL: rt3232



acerc

I had a G-23 with the pld piont system, and I have no Idea how meny hours I qouit keeping tract after 500 flights and it was a great engine but it finaly got real tired tried the usal ring and piston helped but no cegar

My reason for asking is I hsve he that the G-26 ign system eats batteries and the RCGF-26 quaility were not as good as the ones that Henery broght in

Gheers Bob T



Why not fit a RC exl ignition which is a straight plug and play affair to the G26 to solve the high power usage of the Zenoah ignition, and you're good to go.



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RE: RCGF Engines - 2/22/2013 1:45 PM   
irocbsa



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ORIGINAL: ahicks

Actually, they are/were exactly the same as the ones Henry brought in. IMHO, the biggest difference in the Aerovate engines was pure marketing hype.....



Yep, it was a huge scam that I'm ashamed to say I fell for. Those same "Aerovate" 26 engines that we all used to pay $239 for can now be bought on Hobby King for about $130. Most places stopped carrying them altogether. BP Hobbies still does, but I'm not sure why. They should be embarrassed to sell that thing to people.

Speaking of, BP claimed they had a new 26cc that was supposed to be coming out in January. They posted a thread here and it actually looked pretty nice. I emailed them and they said the engines were in stock and they were going on the website "this weekend". That was 3 weeks ago. Not sure what's going on. I guess they don't want my money?

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RE: RCGF Engines - 2/22/2013 10:04 PM   
rt3232


 

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karolh

That has been one of my considerations , I am not quite ready for am engine as yet just looking for comments at this points don't want to have to take a step and then 2 back i am just getting to old for that.

Thanks to all for your comments.

Cheers Bob T

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RE: RCGF Engines - 4/27/2013 3:49 AM   
Captmicom


 

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From: Sierra Vista, AZ, USA
Status: offline 		Hi Guys,

I have been MIA for a while but we do have a "New" RCGF 26cc that looks kind of like the v2 20cc and the 32cc. If anyone is interested I will try to post photos of it. Later,


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