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HelicopterMain Discussion › Are Drills ok to start nitros with?
11-23-2017 04:11 PM  18 days agoPost 1
youngbuck

rrApprentice

Maine

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Hey guys I'm not sure what's going on with my rave 90 and OS91 HZr and I've been trying to use either my dewalt drill or electric drill. I have a long extension on my cordless drill with a quick release(impact style) and the correct bit in the end, however I've stripped out the little round hex with the two set screws that go over the shaft. I ended up buying a brand new shaft with a new hex and for some reason after a few cranks the set screws either loosen up or eventually just spin around on the shaft.ive tried super hard to tighten the set screws and using the red thread lock and letting it set for two days, and then I'd get the motor started but eventually it turn the engine over a few times and it would eventually freely spin and I wouldn't be able to start it.
Should I not use a drill cause of the back pressure or some other reason? What am I doing wrong guys, thanks in advance!

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11-23-2017 04:22 PM  18 days agoPost 2
EEngineer

rrProfessor

TX

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A drill might have too much torque.

If your drill has a torque setting, set it to low torque.

If your engine is flooded, you don't want to try to turn it over until you drain the excess fuel.

Besides, look what's been done to your drill.

Why not get a normal "starter" that's made for the purpose of starting a "nitro" heli?

Perhaps, a case of "penny wise and pound foolish"?

Logo 600SXs, 800XX, TDR IIs

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11-23-2017 04:39 PM  18 days agoPost 3
Dan Minick

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Columbus, WI

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Does your start shaft have a flat spot ground on it? If not it would be a good idea to make one for the set screws to tighten down on, doesn't have to be much. Also you can use red loctite between the starter adapter and the shaft itself.

As far as using a drill, not really sure. It seems as it would not spin fast enough to give the engine the proper pop it needs to easily start. Just make sure your not using any type of "impact" drill or you wont just be ruining starter shafts

Team Synergy, Team FBL Rotors-------if its not broke...it will be!

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11-23-2017 05:29 PM  18 days agoPost 4
rcscaleguy

rrNovice

CA, USA

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A drill in a pinch

Just make sure to tilt your helicopter towards the exhaust side while holding the head to make sure that you don't have a hydrolock situation and you should be fine with a drill. Like a starter you only what to turn over not drilling continuously trying to start. It should start with a quick blip of the drill or starter. Adjust your idle as required.

Have a good Turkeybird day, that is Happy Thanksgiving in America!

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11-23-2017 05:51 PM  18 days agoPost 5
ICUR1-2

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Ottawa, Ontario

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If you're going to use a drill for starting get a cup adapter for airplanes and insert the wand in it.
I cut off the cup from an old starter and use it with a drill.

You need the rubber to absorb the engine backlash when spinning with a drill.

Or you can always repair

spending time, paying attention

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11-23-2017 06:37 PM  18 days agoPost 6
EEngineer

rrProfessor

TX

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rubber
Silicon rubber is best....some of those starters have that rubber
that's super abrasive...like a pencil eraser.

They abrasive ones will scar up a shiny, polished spinner in no time flat....

Logo 600SXs, 800XX, TDR IIs

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11-23-2017 08:59 PM  17 days agoPost 7
AirWolfRC

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42½ N, 83½ W

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As far as using a drill, not really sure. It seems as it would not spin fast enough to give the engine the proper pop it needs to easily start.
Yup . . . that's a concern.

Most drills are only good for about 900 rpm, a long way from an idling two stroke.

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11-23-2017 10:46 PM  17 days agoPost 8
ICUR1-2

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Ottawa, Ontario

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You don't need high speeds to start
You can start a nitro by hand .

spending time, paying attention

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11-23-2017 11:11 PM  17 days agoPost 9
da_man

rrKey Veteran

Central NC

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Second that last statement, I was able to start a helicopter engine by hand with an Allen key. it took a while and wouldn't suggest it, but it is possible

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11-23-2017 11:46 PM  17 days agoPost 10
gmcullan

rrKey Veteran

Southbridge, MA

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I use my Dewalt cordless drill on the high speed/low torque setting with a one foot long 6mm he shaft to start my Raptor 30 V2 equipped with a TT39 heli engine. Works like a charm every time.

Gerry Cullan,
Gaui 200, 255; T-Rex 250, 450 SE & SA, Mini-Titan, Blade 450

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11-23-2017 11:56 PM  17 days agoPost 11
AirWolfRC

rrProfessor

42½ N, 83½ W

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You can start a nitro by hand .
So can I . . . but not if I don't have to

I also run my heli starter on 16 cell NiCd (19V)

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11-25-2017 04:14 PM  16 days agoPost 12
whirlyspud

rrKey Veteran

USA

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You guy make it sound like a miracle that anyone was ever able to hand start a glow engine.

Mike

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11-25-2017 04:35 PM  16 days agoPost 13
wjvail

rrKey Veteran

Meridian, Mississippi

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While don't use a drill and never have, I have modeled with people that have used them for decades. There is a possibility they haven't told me about the connecting rods they've bent and the start shafts that have failed but I don't think so.

It is fine to use a drill - especially on a .90.

"Well, Nothing bad can happen now."

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11-25-2017 07:19 PM  15 days agoPost 14
eyeflyhelis

rrElite Veteran

charlotte nc

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i use a sullivan heli starter on 6s, when that fails i use my dewalt impact or drill on high with torque at max, never had an issue.

if the hex on the heli spin use red lock tight to hold it on but replace the bearings first because you don't want to be pulling it apart again any time soon.

if the locking allen on the starter shaft is coming loose same thing.

if the head of the starter is spinning in the rubber on the starter its best to replace it however a little electrical tape on there and some force to put it in and that works well.

****NOTE**** if it isn't turning over at all even by hand pull the glow plug and make sure its not hydro locked.

on a few 90's i used to have i have started them with the plug loose then tightened at an idle and flew.

only you have the power to make no difference!

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11-25-2017 07:21 PM  15 days agoPost 15
eyeflyhelis

rrElite Veteran

charlotte nc

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hand starting a helicopter sucks did it once just to do it, dont want to do it again.
airplanes is are a different story

only you have the power to make no difference!

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11-25-2017 08:20 PM  15 days agoPost 16
AirWolfRC

rrProfessor

42½ N, 83½ W

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You guy make it sound like a miracle that anyone was ever able to hand start a glow engine.
hand starting a helicopter sucks did it once just to do it, dont want to do it again.
airplanes is are a different story
We are talking helis . . . aren't we ?

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11-25-2017 10:27 PM  15 days agoPost 17
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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I have used the 12 v trim drills with no problem. They have low torque and if motor is tuned correctly it will start easy . I like the low torque drill because if motor fuel locks you won’t strip coupler or damage OW bearing . When motor locked all I did was use hand to help turn thru lockup leaning heli over on pipe side or loosen plug .

I stole it ,flew it and gave it back ;)

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11-26-2017 01:01 AM  15 days agoPost 18
eyeflyhelis

rrElite Veteran

charlotte nc

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AirWolfRC
We are talking helis . . . aren't we ?
yes sir

only you have the power to make no difference!

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HelicopterMain Discussion › Are Drills ok to start nitros with?
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