Having not seen one up close can you please tell me if the standard muffler is made from aluminum or light gauge steel?

Al

I have A Jtec it is a good muffler how ever I have found that my Bisson is much better in quality, sound and good back presure, My engine runs very well with it.

opps replied in wrong thread...I think I've lost it. lol

Hey guys, I am selling DL50 , look at my ad... http://www.rcuniverse.com/market/item.cfm?itemID=413157

Hi ,

Question?

I feel that my engine is getting too hot in my Yak so I removed the plug, and found the electroid to be dry,
That tells me that Im running to lean, Right

Engine is still in the breaking in period running with Lawnboy 32/1

It really depends on what type of flying you are doing as to which end (high / low) you need to adjust. If you fly mostly full throttle then it would be your high end needle you will adjust. If you fly mostly 1/4 to 7/8 throttle then the low end is the needle that needs to be adjusted.

Plug color is as follows:

White / Gray is lean.

Tan / Light Brown is perfect

Dark Brown / Black is rich

The way i tune mine is to get the engine warm and then tune the high end untill the rpm drops then back it off untill you reach top rpm and crack it back untill you loose another 100 rpm. Then go to the low end and tune it untill the engine stumbles when going from low to high at quick pace. Then back it off untill you lose the stumble. Then re check the high end again. It doesn't take much of a turn either the needles are very sensitive. I run mine with 50 to 1 Belray MC-1

Jim

Question for all you DLers. Are any of you running 50 to1 on amsoil and have you had any sticking or broken rings while running any ratio of Amsoil?

Which Amsoil? Saber or Dominator? Saber is designed for 80:1 to 100:1, and Dominator is for 50:1.

Ive been running Dominator.

How many hours do you guys have on the DL 50 I have one with 9.5 hours and the ring rotates about .090 .100 I think its the ring or pin-32.01 oil since new and broke on 1.0 hours on the ground , any one checked for this problem

Guys,

A little bit confiusing regarding Pennzoil from this url
http://www.rcaerobats.net/GAS_ENGINE_INFO/oil_page.htm

so from pic below which is the one for DL50?
http://www.rcaerobats.net/GAS_ENGINE...Penn_Front.jpg
is the right or left?

thanks
Fay

The one that says two cycle for air cooled engines in white letters, not the one that says multi purpose. The one on the right in the second picture.

the ring on my DL can rotate about 2 mm either way. I found the pin is only about 1mm raised from the groove bottom and has sign of wear at the top. Obviously that is a short pin and the material used is not very hard.

The pin on my DA has a length that is almost the depth of the groove and the ring has no chance to rotate.

I've ordered a new ring from Frank Bowman because of low compression felt. The engine has about 5 gallons fuel through it.

Does Frank Bowman have an Email address, I would like to see if I need to change my rings on some of my engines.

I don't know if it is still accurate but, try this: [email protected] or 1-505-327-0696 ( 6pm to 9pm mst. weekdays) and the following address:
Frank Bowman
1211 N. Allen
Farmington, NM. 87401

What kind of servo and brand are you guys using for the throttle on your engines? The DS821 that came with my Spektrum radio died today while in a flat spin. The engine was at high idle at the time and the plane was down wind of the runway, so I was fortunate not to lose my Wildhare Edge. I put a Futaba S3004 servo on it but with the way it is set up, the idle position isn't very repeatable, particularly if you bring the engine down to idle quickly. There is about a 500rpm difference, ie 1300rpm vs 1800rpm. BTW, the DS821 did the same thing.

I try to use coreless digitals, because of the repeatable accuracy. Some like metal gears better than nylon, some don't, but I've found the thing I want the most is accurate precision, so I use a good high speed with digital and coreless technology. If I had some spare bucks for throttles right now, I'd go with the new Hitec 7985's. What I have currently is the 5625, and they aren't coreless, and you can tell on the speed. I think throttle is a lot of "personal preference".

I contact Frank through [email protected].

Bob,
I couldn't justify the 7985 for a throttle servo with the way I fly. I had some 5645's that didn't center very well, so how would that impact a throttle servo where the end position is what I'd like to see repeatable? As I understand it, the 5625 and 5645 are the same except for gearing. I've got 5985's on my Ultimate that I'm tempted to try on the throttle to see what the difference would be between the cheapy S3004 and a good digital servo.
Chuck

Guaranteed you would see improvement using the 5985, ain't no doubt about it. On rapid changes, my 5625's undershoot (or overshoot) the stick position very slightly, and very inconsistently. Not always the same amount, seems to depend on things that I just haven't taken the time to find out. When I put a "tighter" coreless servo in there, they became much more consistent. I don't know enought to say with any certainty what the differences are in the servos themselves, but the 5985's are far more accurate in stopping precisely where you stop the stick. 5625 not so much.

Thank you so much.

Fay

Hey guys I finally decided and called DLUSA and ordered a 50. I have a GP 330s and have been trying to decide about the engine selection. I have a EVO 45 but the ignition is bad. It is going to be replaced but Horizon is out of them and they say late july, but we all know what that means probably see it late september I thought about the DA but you guys are having such success with the DL that i had to try it. I what to 3D the plane with some scale and i have a 23A vess that i got for the EVO will that work good with the plane and DL or is there a better 3D prop that i should try. And what is a good size milamp ignition battery. I have a Fromco 7.4 2600 that i was going to use on the EVO but i would have to step it down to use it with the DL.

Also one of the guys that i fly with says that for new engines you shoud not 3D it much because they are still breaking in and that puts a lot of pressure which means extra heat. I have only glow 3D planes is the same true for gas?

The response time difference between S3004 (0.19sec) and 5985 (0.13sec) is 0.06sec. Not sure if the difference can be felt on throttle.

The repeatability on end point RPM could be influenced by other factors, such as the pot on the servo is dirty, the gear is worn out, the linkage has play etc.