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HelicopterMain Discussion › Blowing Glo plugs
03-15-2003 03:53 AM  14 years agoPost 1
rwj

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Kenosha Wi

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I have a hobbico Delux power panel. I don't know if it is the power panel causing my problem or if it is the remote glo starter that is bad or if I am to lean. I don't think that I am to lean because I have exaust coming from the muffler When I connect the glo wire to the remote starter mounted on the frame the needle will read low power if I have the dial turned way down and if I need more juice I turn the knob and it will register more power supplied to the plug. Could the power be surging even though the meter is reading alright? Any thoughts would be great thanks.

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03-15-2003 03:57 AM  14 years agoPost 2
rwj

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Kenosha Wi

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I did it seems fine

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03-15-2003 04:39 AM  14 years agoPost 3
rwj

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Kenosha Wi

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It is not black it looked silver to me maybe it is white I have to look at it better tomorrow. Even though I had an exaust stream I still could have been to lean?

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03-15-2003 04:56 AM  14 years agoPost 4
KeithA

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Friendswood, TX

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I am about 99.9% certain that you are blowing your glow plugs by cranking up the juice on your power panel. I don't recommend using the power panel for this reason, but if you must, have the dial set at the minimum setting to start with and turn it up ever so slightly if necessary. There should be plenty of juice from the power panel at or near the minimum setting to start your engine. You must remember that the power panel is being supplied 12V from your gel cell battery. A Mcdaniel glow igniter (highly recommended) is equipped with a 1.5V nicad battery and will never fry a plug! It only takes a few blown heli plugs to pay for a McDaniel (or equivalent) glow igniter.

I do use a power panel to power my electric fuel pump some of my starters. It is handy for these items.

Hope this helps.

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03-15-2003 04:59 AM  14 years agoPost 5
rwj

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Kenosha Wi

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Keith I made sure that the dial was set to a minimum. When I flew last weekend it was fine and I put in the new plug. I always check my power on the dial before connecting.

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03-15-2003 05:28 AM  14 years agoPost 6
KeithA

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Friendswood, TX

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I could be wrong, but I would still wager that it is your power panel being cranked up too high that is causing your problem - especially since your element sounds like it still looks new. There is a very fine line between "good glow" and "fried glow plug" when using a power panel with a 12V power source. For example, if the meter is reading 1/8 to 1/4 from the minimum you may be in the "safe zone", but if you crank it up even slightly higher - say 3/8 it can be in the "fry zone". The problem is that nobody really knows where the "fry zone" is on the meter and once you reach it - it is too late. It may be that last weekend you were always in the "safe zone" when using the power panel.

If you were running your engine too lean the element would appear like it had a white powder on it, and often times the element will also be scrambled.

If you fly with someone that uses a stand alone glow plug igniter you might try it to at least eliminate the power panel as being the problem.

It is also possible that you are not using "good" plugs for a heli application. What type of plugs are you using, and how many flights are you getting between failures?

Just trying to help.

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03-15-2003 08:54 AM  14 years agoPost 7
mrNoodles

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Borlänge, Sweden

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Agree with your post alexander

I replaced somewhere around 5 plugs on one afternoon, couldn´t understand what the problem was, put in a new got one flight and when trying to start again it was dead.

Later that day when taking the engine apart I found metal flakes inside the engine from the back plate. Could see traces from the crank on it.
Cleaned it, and replaced both bearing and now its as new again

/Fredrik
'Hm now I just have to find out where to connect the GV1 sensor to the Jazz80 ESC.

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03-15-2003 12:31 PM  14 years agoPost 8
KenJ

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Ohio, USA

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Check the plug

Your glow plug will tell you more than anything about engine problems.

Set you adjust knob to the lowest setting and hook up a glow plug that is not in the engine.

The element should start silver and as you increast the adjust knob, it should start to glow.

Note the meter reading where the element is glowing a nice orange/red and then try that setting when starting your engines.

Typically with the Hobbico panel, they barely glow at all when the knob is turned all the way down.

If the Hobbico unit is surging, you will see it in the plug.

Hope this helps.

Ken

Team Horizon

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03-15-2003 03:34 PM  14 years agoPost 9
rwj

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Kenosha Wi

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Thanks everyone for the help. I am using OS#8 plugs. I am going to buy a glo igniter.

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03-15-2003 05:02 PM  14 years agoPost 10
Jagboy69

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Miami

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I hope you figured it out by now.. but incase you havent or for those that will read this post 3 years from now.. whip out you volt meter and connect it to the connector from your power panel and take a simple voltage check... see what it's putting out........ just a thought... I use a rechargable cheap hot shot..... I dont own a power panel and dont want one.. I know, It's a great backup... but my fieldbox already weighs a ton... could it be the 40 pound car battery I have strapped to the side?? Jason

Jason /// Sceadu50/9chp WWW.Jagboy69.com

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03-15-2003 06:14 PM  14 years agoPost 11
Jagboy69

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Miami

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so you say........ mind telling us why you think it might be a rear bearing..?????????

Jason /// Sceadu50/9chp WWW.Jagboy69.com

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03-15-2003 09:18 PM  14 years agoPost 12
A&J

rrApprentice

Hudson FL 34667

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Plugs

Is it a OS or YS Engine if it is YS you will need a new check valve
if it OS you need to by a YS


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03-15-2003 09:29 PM  14 years agoPost 13
Jagboy69

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Miami

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Alex.. you still didnt say how the rear bearing is directly related to this chap blowing glow plugs???????

Jason /// Sceadu50/9chp WWW.Jagboy69.com

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03-15-2003 10:04 PM  14 years agoPost 14
rwj

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Kenosha Wi

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I just got back from flying. I think that it was a mixture of a few things. One I think that Keith was right. I looked at my power panel and I paid close attention. Before if the engine would not fire I turned the knob to high as what keith was mentioning. I would crank it to maybe about a 1/2" in under the 1/2 way point. This was way to high. Also I richened it up today getting alot more exaust now. I think it was to lean also. It seems to be dialed in pretty well again and it runs smooth except for a little bop tity bop at idle. Thanks all for the Help. Rick.

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03-15-2003 11:20 PM  14 years agoPost 15
RappyTappy

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North Denver, Colorado

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I don't think that I am to lean because I have exaust coming from the muffler
After seeing if you had exhaust coming from the muffler did you check the glowing red hot engine melting everything around it? LOL just kidding.

You don't tune your motor on exhaust. You tune it to temperature of the engine and engine sound.

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03-16-2003 02:29 AM  14 years agoPost 16
KeithA

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Friendswood, TX

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rwj,

Glad that the use of a glow igniter solved your problem. Been there, done that!

Keith

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