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-   -   Glow Plugs (http://www.rcuniverse.com/forum/questions-answers-154/3646541-glow-plugs.html)

crashbandicoot 12-12-2005 06:07 PM

Glow Plugs
 
Today I burned out 4 glow plugs in a matter of 15 minutes. I was working on my magnum 52 on the bench. Could anyone tell me the cause?


bubbagates 12-12-2005 06:15 PM

RE: Glow Plugs
 
Too lean, bad fuel, wrong plug

DMcQuinn 12-12-2005 06:18 PM

RE: Glow Plugs
 
Is the element (the coiled spring) destroyed? If so, probably you are too lean / too hot.

PropSpinner 12-12-2005 06:20 PM

RE: Glow Plugs
 
Need more info.

What kind of plug are you using?
What are you using to power the plug?
What kind of fuel?
Are you removing the glow starter once you get the engine started?
Is there any way you are way to rich or too lean?

depfife 12-12-2005 09:28 PM

RE: Glow Plugs
 
The only time I went through that many plugs was early in my RC career when I used a glow plug clip plugged into a power panel. Glow plugs don't like it when you mistakenly plug the clip into the 12v starter plug. [sm=bananahead.gif]

PropSpinner 12-12-2005 10:02 PM

RE: Glow Plugs
 
Leave it to a Bama boy to come up with a simple answer! That's probably the problem.

2slow2matter 12-12-2005 11:25 PM

RE: Glow Plugs
 
Probably not. Had the glow plugs been conected to 12 V power, he'd have gone through 4 of them in about 4 seconds, not 15 minutes. Sounds like more of a fuel mixture problem, or too much nitro.

crashbandicoot 12-14-2005 11:41 AM

RE: Glow Plugs
 
Thanks,

I am going to go with the lean theory for now.

BarracudaHockey 12-14-2005 01:24 PM

RE: Glow Plugs
 
Hobbico had a batch of power panels go out that have 12v on the glow driver output. The plugs wouldn't burn out in seconds but they whistled when hooked up to power and didnt last too long but you could start and run the motor on them once or twice.

w8ye 12-14-2005 01:48 PM

RE: Glow Plugs
 
You might try a different brand of plug?

Enjoy,

Jim

Rodney 12-14-2005 03:19 PM

RE: Glow Plugs
 
If you are using a power panel, that could be the problem if you have the dial turned to high. I don't know if you realize it or not but a power panel puts 12 volts to the plug for about 1 millisecond then nothing for the next 9 milliseconds. When you turn up the dial that 1 millisecond time period is increased and can be increase enough to burn out the plug. If you are using a battery for the glow starter, then I'd suspect to lean a run. Another possibility, did you put any additives into the fuel. some additives can be destructive to glow plugs.

PropSpinner 12-14-2005 07:09 PM

RE: Glow Plugs
 
I always start with an O.S. #8.

Flypaper 2 12-14-2005 09:44 PM

RE: Glow Plugs
 
Plug heat range is way to hot.


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