Nogyro

My Feedback: (10)

I still have my 26 on dino Stihl oil for the break in. After that, I'll be using Mobil Racing 2T. I've got enough of that to last me through about half of next summer. When it's gone, I'll need to decide on which synthetic oil to use. We can get the Klotz here local, which would be nice for a change. I've had to order in all of my Mobil which is now off the market. It's good to hear your cousin has had good results with it. But we won't open that can of worms..... [X(]

pettit

My Feedback: (23)

Question on RCGF 45:

It runs fine, starts easily and is rather powerful.

BUT...

It is now starting to miss at high RPM. Low speed needle has to be adjusted a little rich for transition and after running at maybe 3000 RPM, it appears to load up and miss at full throttle.

Both high and low needles are set within guideline settings.

O rotated the carb 180 degrees and made sude it was tight on th ebase. No visible cracks in mounting block.

I did notice that one of the 2 reed valves was set off the block by about 1/32" and the other one was flush.

Anybody got some ideas?

BTW, JTEK makes a Pitts style muffler for this engine that keeps the same RPM but reduces sound levels by 3db.

driesbabe

The High speed miss is more than likely coming from the Sparkplug, Open the plug gap a little to about 0.8mm It should be gone then. If the problem stays, I would lean the high end a little and see if that will get rid of it?

Regards
Andreas

pettit

My Feedback: (23)

Sounds like a likely fix. I'll try it tonight after work.

Thanks

mjamm

pettit, did JTec have a stock pitts that fit the 45? They said they could make one for the 26cc too, if the measurements were sent in.

T3beatz

My Feedback: (4)

Yeah Jtec does costume mufflers, they say they can make mufflers for almost any motor...

roccoym

The way it looks, I will also have to get on the John Deere bandwagon.

Same problem as Nogyro. Easy fix!!!

driesbabe

roccoym,

Take your Dremel, and chop the corner of the firewall. I have done this a few times, there is more than enough to hang on to.

very nice plane btw. I have one with a 65cc on the nose.

pettit

My Feedback: (23)

1- I opened the plug gap and the RCGF 45 runs almost perfect now. It looks like a little more running time will do the trick, but no missing at full throttle.

2- JTEC will build a muffler like the one shown in these photos, I didn't see a stock number, but Al builds every one of them separately, especially for newer engines.

This one does not cut RPMs down at all and reduces sound level by at least 2 db at 25 feet (92db vs 90db)

One more thing. The Pitts muffler weighs 7.8 ounces.

I guess you'd like to see photos, eh?

Nogyro

My Feedback: (10)

Glad to hear that fixed your 45. My 26 is doing the same thing, so I opened the plug on it last night a bit and will test it today if the weather permits. My plug was gapped at .025 to start with, now it's at .030.

Nogyro

My Feedback: (10)

Maybe we'll start a new trend.

Bob Pastorello

My Feedback: (198)

Only if you put the flappers on there..... then you'll truly be at the "bleeding edge"...

driesbabe

I for one would pay to see the Funtana with a flapper

roccoym

Driesbabe,

Thanks,

I thought about dremmeling out the corner, but I was afraid that this would affect the strength of the firewall.

Also, does the muffler clear the sparkplug on your plane?

Pablo

driesbabe

roccoym

Cutting the corner of your firewall will affect the strength of the firewall, there is no argument about that. However I think there is still more than enough left to keep the engine from going anywhere. just start slowly, and you might find that you have to cut a whole lot less than you thought.

As for the sparkplug and the muffler, I can't really see any problem there. Look at the picture, they do fit.

johnnynb

Hi everyone ,

This is Johnny from RCGF Factory.
People who get our RCGF New 26cc engines, please don't put the cap of the spark plug in horizontal position. You can turn the cap of spark plug down 15 degree to 30 degree when you mount it,just like the one which driesbabe showed in the photo ,then it will fit very well.

Any more questions for it ,please kindly let me or our authorized distributors know,we will try our best to service you.

Best Wishes,
Johnny
www.zjrcgf.com

johnnynb

Thanks , driesbabe .

MAJOR SPLAT

Hi Guys

I am going to buy a 50cc gassa and the rcgf is in the frame but can somone please give me an idea of the motors power in hp my distributer shows it in PS (not sure what that is)
Also I need an exhaust that will produce 82db to stay within local rules.
I am fitting it to a patty wagstaff extra 300 any advice would be great.
The ignition seems quite good from what ive read but has anyone had a 50cc long enough to have put more than a couple of hours on it,the reason for the question is I had an spe 40cc and ignition was good for an hour then died.
I love petrol but hate ripping models apart to change sub standard parts.
I was considering the DL as well but the price has gone through the roof and reading this forum it looks like the RCGF motor is equal and will fit my requirements.

Apoliges if this is covered somewhere else but I have infomation overload and this forum is huge.

Regards
Mick.

skip1320

The 50 will be fine,i have 4 1/2 gallons on mine no problems,wich Patty are you getting,no worries,good luck

MAJOR SPLAT

I am building the great planes patty in the goodrich scheme I was thinking pitts muffler if I can find a quiet one. Do you know the difference between hp and ps from the power point of veiw and is 5.0 hp about right I am looking for unlimited vertical and hover
Regards

Mick.

Bob Pastorello

My Feedback: (198)

According to the US distributor site http://www.zrcgf.com/store/Details.c...=33&category=0 the 50 is about 4.7 hp.
Having said that, and I'm sure you know, "hp" means almost nothing on these gassers. Since no one reveals how they arrive at the rating provided, and there isn't a "standard" dyno test.... all you can do is hope.

I have the 45... it is exceptional on a 14 lb GP Cap 232. The 50 should be better, and depending on the brand of arf you're doing, it will likely give you exactly what you need.

MAJOR SPLAT

Ok thanks its about right hp wise I expect the patty to come out aroud 16/16.5 pounds as its not the lightest airframe but I think the 50 should punch it out of a hover ok does anyone reccomend a prop for the 50cc

Regards
Mick.

Piston

My Feedback: (1)

Hey Major
Horsepower ratings are not the most ideal indicators of an engines performance envelope. Most of the engine manufacturers use brake horsepower ratings, and these have little to do with the overall performance of an engine. Stick to rpm/prop ratings to give you an INDICATION of what to expect. Also thrust ratings are good INDICATORS too.

The RCGF 50cc engines are producing about 28-29 pounds of thrust, using a 22/8 prop.

The RCEXL ignition system is a bulletproof unit that will provide outstanding performance to you for years to come. It is a gold standard in the r/c gas engine community. There are other ignition systems out there but none come close to the RCEXCL ignition. I have run some of these systems for hundreds of hours in various engines without fail, or issue. Like most any piece of electronic equipment, treat it well and it will respond in kind. Plus if....if....if.... you ever do need some maintenance or replacement of the unit, their costs are very reasonably priced.

And no apologizes are required for asking questions. I find the rcuniverse community is incredibly diverse and extremely helpful to us all. How many of us (me included) have asked questions that have been covered in other forums.

Cheers
Henry
[link=http://www.zrcgf.com]RCGF Aero Products[/link]

DaddySam

My Feedback: (9)

Hi Henry
Happy Thanksgiving to all. Any more updates on the 50cc twin? I'm looking forward to seeing them with the CM-6 plugs!
sam
PS: thinking about Major Splat's concerns with noise, if you could make some different headers available it would allow many to use the in fuse cannisters! I'm thinking of one that would fit the singles and have a double bend to keep the cannister in line with the cylinder.

MAJOR SPLAT

Ok guys Im sold I will order mine in the morning any prop advice and a quiet exhaust system for this motor would be great,I would prefer to keep exhaust out of the fuslage if poss would a small pipe that could be run under the model be woth considering?

Thanks for the advice
mick.