Fly To Chill

My Feedback: (20)

But they dont go bad?

Fly To Chill

My Feedback: (20)

Ok my bad it is a 3800 with 9t pinion i bought it back in Jan.from jaghobbies so it has 5 months of use on it.

Fly To Chill

My Feedback: (20)

never had a problem till now

osterizer

If it's a brass pinion, they certainly do wear out- if the teeth look like they're getting sharpened, get a new one.

Faststar- you certainly can use a G90. The 401 isn't hard to set up, though, if it works right- you just plug it in. The gyro switch will work to switch it between avcs and rate. If the default values aren't good for you then you're out of luck, though, since you can't change them with the stock radio. I got lucky and it worked fine on mine, but that's nothing like a guarantee .

Fly To Chill

My Feedback: (20)

yes it is brass , so how do you take it off and how do you put on a new one?

Faststar

Thank you Osterizer.
I'll let you know how things work out.

osterizer

np, Faststar.

Fly To Chill, I assume it's a press on, that there isn't a set screw near the base? If so, there are a lot of ways to get them off. I just cut to the chase and got a GWS pinion puller (example: http://www3.towerhobbies.com/cgi-bin...&I=LXHHN3&P=ML) since it pops them off without a lot of fuss. Putting them back on, I used a bench vise- put the motor in the jaws, the pinion aganst the end of the shaft, then line everything up exactly while you slowly turn the vise down against it. Then it's a matter of just turning the vise in until the pinion is in the right position. Others have used C-clamps, and so on.

Better IMO is to get a decent pinion with a grub screw so you don't have to deal with the press on stuff any more. A little grean loctite on the shaft can lock it in place in addition to the screw, but I never bothered. I used these steel pinions, but they take a while to get to the US: http://www.heli-fever.com/product_in...roducts_id=691. There are also Align and Revco options, but they're a little more difficult to fit.

Fly To Chill

My Feedback: (20)

Would these work?
http://www.ka-planes.com/becs__escs_...nions?start=55

betapilot

Try the Rhino gear available in the US at several places (no waiting for chinese post), get the 2.3mm I/D for that esky 3900 and either definitely flat spot your output shaft or run locktite, I would not trust just running it dry on a smooth shaft myself but take the chances you are comfortable with. You may have to run it upside down for fit but it is one tough gear. I definitely agree that going with a set screw instead of press on is the way to go though.

On the HH gyro deal, I would also keep in mind that you will need to go to a digital servo at the tail if you want to run a HH. The stock tail servo will most likely burn up running that 401 since its pulse rate is so much faster and the servo will not be able to keep up.

lohchief

I know that the 2100t gyro allows you to set the servo type,(digital-analog).Does the 401 have the same option? Also,Does a digital servo use more energy(battery power) then it's analog counterpart? I haven't found that much to read about that specific difference,and what I have found wasn't definitive in answer.The reason I ask is,I am only into scale,so lightning fast response isn't really a requisit.
-lohchief

osterizer

The 401 is analog/digital switchable with a mechanical switch on the gyro, so you aren't depending on the radio for that. The digital servos do use more power.

lohchief

Thank you for the answer bro,it was what I figured but didn't know for sure.Gimme another hunnert years and I might figger this stuff out.
-lohchief

Zimatosa

Easiest solution for me was to put a B400 main gear and the stock 10 or 11T pinion from Eflight. Not one chewed gear since having this combo. I tried the Align pinions first just because my LHS had the 3 pack(9-10-11T). They ate my gears for lunch!

Peace,

Z

betapilot

You can switch the ds mode off and you have to unless you are running a digital servo and it will still be an improvement over the stock gyro even running an anolog servo but it would seem a waste to spend the money and not reap the full benefits.

betapilot

BTW - my comment was in answer to post 4144 where he ask about running the gyro with a stock tx.

sheerider1026

so will a b400 main gear fit right onto the hbk2?? is it the same tooth count?? school me on this please.. i will be in need of a new main gear soon.

Zimatosa

Direct drop in/replacement.....I bought the one-way puller to switch the one-way to new main gears for only $2.99 at my LHS. This is highly recommended. It cost $3.49 for new main gear without one-way, $8.49 with....Do some math and it's really worth it. When I was eating gears up with the Align pinions, I changed out the one-way at least 4 times with zero problems..

Z

Rosebud6

Is eflight pinion press on or set screw?

crashcrash

E-Flite is press on, Align is set screw.

Fly To Chill

My Feedback: (20)

Ok i would like to say thanks to every one for there help ,I went to ka-planes Mike Jr.hooked me up with a set screw pinion ans he even pulled off the old one for me so that was cool put it back together and she flyies better then ever, and to think I was going to scrap her and use the parts for the belt cp, glad I didn't do that now. thanks again.

lohchief

Yeah,I know,but it brought up a good point and something I wasn't sure about.When I buy a 401,I will make sure I get a digital servo to go along with it.For the money,I should get maximum benefit.Thanx.
-lohchief

Zimatosa

The E-flight pinions I bought all have the set allen head grub screw......They were the pinions recommended for the Blade from LHS...Hmmmm? Crash?

Z

betapilot

Honestly, if you are already used to flying the tail then you may find its not worth the cost.

crashcrash

All I ever seen was press-on's.....I could be wrong (been there before).

Zimatosa

Even if you are wrong, you will always be one of my hero's Crash....[sm=shades_smile.gif]

Z