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Search: Posts Made By: jeff4912
Showing results 1 to 25 of 118
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Forum: Gas Engines
10-22-2015, 03:38 PM
Replies: 9
Views: 2,757
Posted By jeff4912

Did the Permatex thing and it works great, no...

Did the Permatex thing and it works great, no more leaks.
Forum: Gas Engines
10-16-2015, 03:06 PM
Replies: 7
Views: 6,900
Posted By jeff4912

I would put at least a 20cc in the Sig 120. ...

I would put at least a 20cc in the Sig 120.

I have the Sig 4 Star 60 with a 15cc gas engine and it is about perfect. 15cc in the Sig 120 would not be enough power in my opinion.

Probably...
Forum: Gas Engines
10-14-2015, 01:06 PM
Replies: 2
Views: 1,262
Posted By jeff4912

RPM's on 14x6 with Evo 15cc Gas Engine?

Just wondering what rpm you guys think my Evolution 15cc gas engine should turn a 14x6 prop.

My tach tells me I am getting 9600rpm, but the Evo website says 10,400rpm which seems high to me.
...
Forum: Gas Engines
09-14-2015, 06:44 AM
Replies: 30
Views: 5,920
Posted By jeff4912

This is my first gas engine too, and I am trying...

This is my first gas engine too, and I am trying to learn everything I can about them and by getting responses from others, it fills the holes in for me. Learning about this stuff is fun for me and...
Forum: Gas Engines
09-13-2015, 05:12 PM
Replies: 30
Views: 5,920
Posted By jeff4912

Simply asked a question about retuning engine...

Simply asked a question about retuning engine after changing oil ratios and how it affects the engine tune.

If I am wasting your time, you are free to ignore the thread.:cool:
Forum: Kit Building
09-13-2015, 08:28 AM
Replies: 23
Views: 1,435
Posted By jeff4912

I like your idea, thanks for sharing it.

I like your idea, thanks for sharing it.
Forum: Kit Building
09-12-2015, 06:10 PM
Replies: 23
Views: 1,435
Posted By jeff4912

Should I use 4-40 steel rods for this or 2-56...

Should I use 4-40 steel rods for this or 2-56 steel pushrods?

Does it matter if they are not perfectly snug(but slide freely of course) with the outer tube since they are rigid?
Forum: Kit Building
09-12-2015, 03:15 PM
Replies: 23
Views: 1,435
Posted By jeff4912

Gray Beard.. At most, I will need to put in...

Gray Beard..

At most, I will need to put in 8-10 clicks of trim on my Spektrum DX6 radio for the rudder and elevator. That equates to about 1/5 of the total trim available on the radio.
Forum: Kit Building
09-12-2015, 03:02 PM
Replies: 23
Views: 1,435
Posted By jeff4912

Are the pictures showing me that the rudder has...

Are the pictures showing me that the rudder has deflected because of the expanding of the nyrods?
Forum: Kit Building
09-12-2015, 12:01 PM
Replies: 23
Views: 1,435
Posted By jeff4912

Gray Beard said: "If the outer tube isn't...

Gray Beard said:

"If the outer tube isn't glued in tight all along it's length about every 6 or 8 inches it will allow the rod to shift and it will change the trim "

Is that an in flight issue,...
Forum: Kit Building
09-12-2015, 11:50 AM
Replies: 23
Views: 1,435
Posted By jeff4912

My outer tube is glued well in the airplane. As...

My outer tube is glued well in the airplane. As an experiment, I placed my Sig 4 Star out in my driveway in direct sun light for about ten minutes w/out the wings on. The rudder and elevator were...
Forum: Kit Building
09-11-2015, 02:52 PM
Replies: 23
Views: 1,435
Posted By jeff4912

Plastic control rods causing trims changes....

I recently built a Sig 4 Star 60 and really enjoy flying it, but have noticed on warm days, that the control rods to the elevator and rudder expand causing changes to the trim settings. The control...
Forum: Gas Engines
09-11-2015, 04:50 AM
Replies: 30
Views: 5,920
Posted By jeff4912

Back to the original question, does anyone have...

Back to the original question, does anyone have an answer?
Forum: Gas Engines
09-08-2015, 08:52 AM
Replies: 30
Views: 5,920
Posted By jeff4912

Fourth tank of fuel: ...

Fourth tank of fuel:






Select one of the recommended
propellers for normal operation
and mount it on your engine. Tune the main
Forum: Gas Engines
09-08-2015, 04:50 AM
Replies: 30
Views: 5,920
Posted By jeff4912

.??...32:1 is the recommended mixture after break...

.??...32:1 is the recommended mixture after break in.
Forum: Gas Engines
09-07-2015, 04:00 PM
Replies: 30
Views: 5,920
Posted By jeff4912

Changing from 20:1 to 32:1 gas to oil ratio

Just about through my first gallon of gas at 20:1 mixture for breaking in my Evolution 15GX2 pumped carb engine.

My question is: will the HS and LS needles need to be retuned with a mixture...
Forum: Gas Engines
09-07-2015, 03:08 PM
Replies: 9
Views: 2,757
Posted By jeff4912

Flew my Sig 4 Star 60 today with the OS muffler...

Flew my Sig 4 Star 60 today with the OS muffler on it. The HS and LS did not need any adjustment. The plane flew great but I don't see any difference between the two mufflers, except that this one...
Forum: Gas Engines
09-06-2015, 07:53 AM
Replies: 9
Views: 2,757
Posted By jeff4912

Jim, Thanks for the info, hopefully I will...

Jim,

Thanks for the info, hopefully I will get to fire it up tomorrow. Raining here today.
Forum: Gas Engines
08-31-2015, 03:23 PM
Replies: 14
Views: 7,380
Posted By jeff4912

Here is my remedy to the Evolution muffler...

Here is my remedy to the Evolution muffler issues.

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2117654

Yes, that is a OS muffler on a Evolution engine.
Forum: Gas Engines
08-28-2015, 04:35 PM
Replies: 14
Views: 7,380
Posted By jeff4912

I will give you a flight report on the new...

I will give you a flight report on the new muffler probably in a week or so.

Probably won't come the mail until mid-week.

Needless to say, that Evolution muffler was less than impressive!
Forum: Gas Engines
08-28-2015, 02:19 PM
Replies: 14
Views: 7,380
Posted By jeff4912

Well...so much for the "re-designed"...

Well...so much for the "re-designed" muffler.............

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2117072 http://www.rcuniverse.com/forum/attachment.php?attachmentid=2117073...
Forum: Gas Engines
08-26-2015, 03:59 PM
Replies: 9
Views: 2,757
Posted By jeff4912

OS Muffler on Evolution 15GX2..?

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2117722

Does this muffler work well on the Evolution 15GX2? The reason I am asking, is that my muffler leaks like a sieve!

Does...
Forum: Gas Engines
08-25-2015, 05:15 AM
Replies: 13
Views: 9,567
Posted By jeff4912

Tuning your Gas Engine made easy....

I just want to say that this worked very well for me tuning my Evolution 15GX2. I give the credit to Mark Fuess who posted this on the Flying Giants website some time ago.

Before you begin your...
Forum: Gas Engines
08-04-2015, 01:16 PM
Replies: 5
Views: 2,704
Posted By jeff4912

I taped off the ends of the shiny band that joins...

I taped off the ends of the shiny band that joins the muffler and then RTV'd around the seams on the band, hopefully that will work.

My Sig 4 Star 60 however, is getting an oil bath breaking the...
Forum: Gas Engines
08-04-2015, 05:09 AM
Replies: 5
Views: 2,704
Posted By jeff4912

Thanks Pete, Started the engine, HS at 1.5...

Thanks Pete,

Started the engine, HS at 1.5 which turned out to be a little lean so I ended up at 1.75

LS was initially set at 4.5 turns out (recommended in manual), but after tuning, ended up...
Showing results 1 to 25 of 118
 
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