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Forum: 3D Flying!

07-03-2015, 04:30 PM

Replies: 0

Balancing Carbon Z Yak

Views: 538

Posted By Dgremlin

Balancing Carbon Z Yak

Just put my new Carbon Z Yak together but when I put it on my balance rig, it's very nose heavy, even without the battery. With the battery installed, I need to place about 4oz of weight back by the...

Forum: Glow Engines

01-26-2010, 09:37 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

I'm sure OS makes good engines but I've talked to 3 or 4 guys at the field and my local hobby shop and they all said there seems to be a problem with the .91FX. Everyone who has had one said they had...

Forum: Glow Engines

01-26-2010, 08:02 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

I'll never buy an OS again. In fact I originally bought a Super Tigre .90 to put in this plane but their muffler is quite a bit fatter and there was no way to fit it in. I have 2 ST engines and they...

Forum: Glow Engines

01-25-2010, 09:12 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

Like I said, I would have had it sent back and replaced them myself but if I didn't have them fix it, it was going to cost me $20 for shipping and handling. I just paid the $33 to have it fixed and...

Forum: Glow Engines

01-25-2010, 05:13 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

It's a 2 stroke

Forum: Glow Engines

01-25-2010, 04:42 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

I called OS again but they won't budge. I used after run oil with the 1st 3 tanks during break in. The only time I didn't use it was the last couple times when we ran it for a minute or two while...

Forum: Glow Engines

01-22-2010, 11:14 AM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

I just talked to OS and they said that rough bearings are caused by rust. Must be some pretty crappy bearings if they rusted after less than 1 1/2 hours runtime. The problem is that if I don't have...

Forum: Glow Engines

01-22-2010, 10:56 AM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

I was using 15% nitro with 18% castor. (That's what the manual said to use.) I live in Las Vegas, very hot and very dry, and I didn't have the engine that long so I don't think rust would have had...

Forum: Glow Engines

01-22-2010, 09:53 AM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

No. I never pulled anything apart. I could see if they said I had run it to lean and burnt it up. But I don't know what you can do to make the bearing "rough". I'm going to call them this morning and...

Forum: Glow Engines

01-22-2010, 02:17 AM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

RE: Rough Bearings

Heck! They're charging me $33.00 for replacing mine.

Forum: Glow Engines

01-21-2010, 11:55 PM

Replies: 58

Rough Bearings

Views: 5,918

Posted By Dgremlin

Rough Bearings

I had an OS 91 in my GP Gee Bee. We broke it in according to the manual and it seemed to run fine. Before the maiden flight it started dying at full throttle. After 2 weeks of messing with it, we...

Forum: Kit Building

07-25-2009, 11:15 AM

Replies: 8

Repairing A Wing Hold Down Hole

Views: 1,186

Posted By Dgremlin

Repairing A Wing Hold Down Hole

I buggered up one of my wing hold down holes and was wondering what's the best way to repair it. I can thread the 1/4" nylon bolt in but it won't tighten down. I thought about filling the hole with...

Forum: Glow Engines

07-21-2009, 07:50 PM

Replies: 13

Thunder Tiger .36 pro???

Views: 7,547

Posted By Dgremlin

RE: Thunder Tiger .36 pro???

The .36 is actually about 8oz lighter than the ST .40 I believe. I'm scratch building a quickie racer just for sport flying and I plan on putting a 36 pro in it just to save the weight. (These...

Forum: Profile and Fun Flying Planes

07-01-2009, 06:31 PM

Replies: 2

Schwans Profile Planes

Views: 1,266

Posted By Dgremlin

Schwans Profile Planes

A guy at our field was flying a BIG profile 3D plane with a Saito 120 gas engine. He said it came from a place called Schwan's (or something like that.) I tried doing a search but came up with...

Forum: RC Scale Aircraft

03-15-2009, 07:06 PM

Replies: 2

Great Planes Gee Bee

Views: 566

Posted By Dgremlin

Great Planes Gee Bee

I have the GP Gee Bee and I'd like to scale it out a bit more. I'm trying to figure out what to use and how to install the support wires. Someone mentioned using elastic cord but I'd like to use...

Forum: ARF or RTF

03-14-2009, 07:54 PM

Replies: 4

Great Planes Gee Bee & OS

Views: 809

Posted By Dgremlin

Great Planes Gee Bee & OS

I have the great Planes Gee Bee Z and the manual recommends the OS .91. Is anyone out there flying this combo? I was wondering if this engine will pull the plane around pretty good.

Forum: Beginners

02-24-2009, 12:38 AM

Replies: 66

What To Expect From A 4-Stroke

Views: 5,499

Posted By Dgremlin

What To Expect From A 4-Stroke

I'm building a Great Planes Gee Bee and I'd like to go with an OS 120 4 stroke but I know nothing about 4 strokes. Are they more trouble than 2 strokes? What about valve adjustments and such? I'd...

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