RunRyder - HELP! Gasser Vibration

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Gasser Model RC Helicopters > HELP! Gasser Vibration

loewermx
Veteran
Location: Alexandria, La

I have an xcell gasser and a vibration has started in the tail section. Bad enough to vibrate both the hor. and vert. fin to the point that you can't see either, and make the tail wag. It started in mid flight, just hovering. I have checked all bearings in boom and rear gearbox, made sure all bolts where tight, checked all gears, ect... I made sure all shafts where straight.
I have had another man check it we can't seem to figure it out.

Has anyone else experienced this problem?

Please Help!

Post here or e-mail loewermx@aol.com

Thanks
loewermx

01-28-2002 Over year old.

HOMEPAGE

Dr.Tim
Key Veteran
Location: Mojave Desert

Bad Vibes

Have you changed Fuel or the type of Oil in your fuel? Sometimes when I change fuels I have too lean or richen the LOW end. If the engine is out of adjustment it will cause a vibration.
Dr.Tim
(No expert but, I had this happen)

From Simple minds come simple ideas! Starwood Models, Approach Engineering

01-28-2002 Over year old.

HOMEPAGE

lowandslow
Key Veteran
Location: Spring Hill, TN

I had a Bergin gasser for awhile. Here's my experience. Too lean and it vibrates like hell. Too rich and it vibrates like hell. Just right, and it's as smooth as glass. Check your carb settings.

01-28-2002 Over year old.

HOMEPAGE

loewermx
Veteran
Location: Alexandria, La

The engine was tuned by Bill Meador, and we have already tried re-tuning. I have used the same fuel as always.

01-28-2002 Over year old.

HOMEPAGE

Billme
Key Veteran
Location: MS

Have you taken your boom apart to check your drive system? You guys said that the engine did not change, and this happen all of sudden...If you didn't notice a change in the engine, then its possible that your bearing may have poped out of its holder in the boom....

Regards,
Bill.

01-28-2002 Over year old.

Billme
Key Veteran
Location: MS

Sorry, I see you have checked the boom bearings...when you bought this machine, did you put a new radio system in it, and setup the machine again?

I may be in Baton Rouge Sat...It may be that you can meet me there, and we'll see whats up...

I'm sure you checked your engine mount bolts, huh?
Regards,
Bill.

01-28-2002 Over year old.

fortdogg
Heliman
Location: ky

BAD VIBES

Just a thought but did your head speed change any say going fast to get gyro out of wack also. If so I'd take a look at the finger screen in the carb.
Hope this helps

Ron

01-29-2002 Over year old.

CeeJay
Heliman
Location: Alexandria, LA - USA

Scott found his Vibe !

The original problem was a bearing that exited the aft bearing carrier in the boom. We replace that bearing as it was bad. We greased both the new bearing and the front bearing on reassembly. (Assembled it myself)

I convinced Scott to pull the the boom down again, this time the bearing in the front carrier had popped out of its hole. Go figure! Got a bag full of them carriers right here on my desk and am going to make his day before lunch.

CeeJay

Hey Bill, what ya doing in B.R. This weekend? Wanna go hang out somewhere?

01-29-2002 Over year old.

Billme
Key Veteran
Location: MS

I kinda figured that might be what had happen...I've seen this before on Xcells...Now tell him to put some time on it

Eddie Weeks wanted me to tune the Vertol Turbine Jet a little bit more...We've just about got it to where any good heli pilot can hover this thing...We haven't desided yet if he is coming here, or me going there

I'll let you know..They took it to Jets over Deland, and it done great...I was just not able to make that long trip..

If you want to see something cool as heck, look at it :
http://www.corpcomp.com/weeks1/Rig/Rig.html

I'm glad you guys found the problem, and lets do hook up soon

Regards,
Bill

01-29-2002 Over year old.

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Gasser Model RC Helicopters > HELP! Gasser Vibration

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