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Old January 29th, 2008, 04:48 PM   #1
Mjolman
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Default R/C car help

I got an ae RC10GT2. I can't get the damn thing to fire.

I traced my problem back to my burning up glow plugs.

So i buy new ones, in the engine book it says to test the glow plug touch it to the ignitor. I did, and guess what? It burned it up.

So i didn't do that to the next one. I put it in the car, turn the engine over a couple times to get some fuel in there. Put the ignitor on, and you know what happened next? It burned up.


Everywhere i look for rc help it just says replace the glow plug if your having problems with it. Well that isn't working. Anyone know why i'm burning these damn things up. Its getting really annoying.
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Old January 29th, 2008, 04:52 PM   #2
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are you getting the right ones? try a better brand maybe. have you tried a different glow plug igniter? is your fuel still good(not really old)? whens the last time you drove the car? might be out of tune and letting to much fuel into the motor causing the glow plug to foul out. i find it hard to believe your burning them up just by touching it to the glow plug ignitor once. ive held mine there for a few seconds to burn the fuel off with no problems.
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Old January 29th, 2008, 04:55 PM   #3
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i have never burnt a plug. I've had them go dead for unknown reasons or burn cold, but not burn out like a wick or something. You should be able to light a plug up out of the engine with the igniter indefinitely. If you can't I would suspect the battery is bad in the igniter putting out too much juice. I have 3 diff temp ranges plug and they all work fine with the same igniter.
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Old January 29th, 2008, 04:55 PM   #4
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I litreally touched it to the ignitor and it heated up and now it won't again. They don't look broken but if its not heating up i don't know what to do.

they are all the same brand, i bought them at the local hobby shop.

And the fuel is also new. I got the car used so i don't know how much fuel is going threw, if anything its to little.
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Old January 29th, 2008, 04:58 PM   #5
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might take the car to the hobby shop and see if they can help. your ignitor might be f-ed up
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Old January 29th, 2008, 05:00 PM   #6
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your ignitor has too high of a voltage, its smokin the plugs. They are only suppose to be like 1.2-1.5 volts
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Old January 29th, 2008, 05:01 PM   #7
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I'd look on the AE website for stock carb specs and set it to that and retune it. Other than that your igniter might be putting out too much power. Try and use one from a friend while you're at it, if that is at all possible.
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Old January 29th, 2008, 05:24 PM   #8
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well i have two ignitors. One i bought and one that came with the car. One is dead right now but i'll charge it up and try it later.

I burned up all the good plugs i had. Thanks for the help this stupid problem is really really annoying.
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Old January 29th, 2008, 06:07 PM   #9
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If you burned up the plug out of the motor the second u put it on the igniter it has nothing to do with the motor. Like i said its getting too much power. Just take a C cell battery and a couple pieces of wire and try that. Connect one wire to the block or anything metal on the motor, and the other wire to the top of the plug. Should work
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Old January 31st, 2008, 05:49 PM   #10
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I got the glow plug thing sorted out.
Returned the car to factory settings. Played and played with it for about an hour and nothing.

I pulled the fuel line, had fuel in it, checked for kinks in stuff. Couldn't find any problems. But still didn't get any smoke at all.

So I pulled the line out of the muffler and blew into it while i pulled the cord. It ran after that so i stuck it back in.

I got about 30 seconds of drive time in before it died and wouldn't restart.
After that i tried everything i could think of to get it running again and not so much as a puff.

So...is this what nitro rc is all about?

EDIT, please don't mock me to much, i'm really aggravated.
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Old January 31st, 2008, 05:54 PM   #11
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what motor is it? are u running a fuel filter? what % nitro are u running currently? Are the plugs still burning up when u hit them with the igniter? If a plug fries out of the package with the igniter before ever hitting the engine its still the igniter.
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Old January 31st, 2008, 06:09 PM   #12
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I got different igniter and plug. that new combo lights orange and holds it.

Its an AE motor, i believe is a .15 but not sure. Its a stock RC10GT2 RTR

no fuel filter, 30% nitro.

The annoying thing is that i went to the store and told them i was new and didn't know anything. Maybe that took advantage of that and sold me the wrong stuff.
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Old January 31st, 2008, 06:19 PM   #13
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Quick run down on nitro R/C. You want a MC 59 glow plug which is a med temp one. I would run 20% nitro till you know what your doing, 30% and a little lean, you'll be buying a new engine. Remember in the cold to richen it up. Start at about 4 turns out on the needle and even with the idle jet. Get a temp gun to check how hot the engine is get once you do get it running. Does this thing still have compression?? Any air leaks will cause a lean engine too and can take a glow plug out, just like a 2-stroke which is really what these are a 2-stroke diesel.
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Old January 31st, 2008, 08:04 PM   #14
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I NEVER had good luck in the winter with these things, and I honestly would just buy one new because all the used ones I ever got never ran right and wouldn't stay tuned, but thats just me.
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Old January 31st, 2008, 08:20 PM   #15
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Quote:
Originally Posted by RANGER_DANGER View Post
I NEVER had good luck in the winter with these things, and I honestly would just buy one new because all the used ones I ever got never ran right and wouldn't stay tuned, but thats just me.
I am inside, its about 60 degrees.
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Old January 31st, 2008, 08:23 PM   #16
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I got it on a partial trade at the hobby shop.

terms were
i gave up a homeade car with no compresson for parts+90 bucks

I got the RC10GT2 RTR, which i said must be ready to go with equipment and whatnot minus fuel.

Well it wasn't ready to go cause it needs all the work.

Honestly i feel like crap for getting the short end of the stick, so do i go back and say they have to get it running for me, or just struggle with it myself?
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Old January 31st, 2008, 09:29 PM   #17
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wait was this thing brand new?
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Old January 31st, 2008, 09:36 PM   #18
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Yeahh, because if it wasnt, you might need a rebuild for it.... And if it was tuned for the cold, then you brought it in, it would be to lean. Bump your idle up a little and richin it and see what happens, it is very dificult to get these things going good if yuo have never done it before. Like the other guy said to do, invest in a tep guage, i think there like $30 but that was a few years back.... so idk if it went up. And check the books and see what your saposed to be running at, and go from there.
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Old February 1st, 2008, 09:23 AM   #19
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also if its been sitting outside or the head is cold. hit it with a hair dryer for a minute or two to help the head expand alittle. that how i do it on my savage in the winter and it works good. reason being is that the top ot the cylender is smaller then the base. i used to know why but cant remember now. something to do with compression i think.
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Old February 1st, 2008, 09:35 AM   #20
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heres something no one suggested. blow into the line that goes from the exhaust to the fuel tank till you get fuel going in to the carb. it should fire up. then put your finger over the exhaust enough to block some of it but not completly. if it stays running while doing this then you have to figure out y the muffler is not putting enough pressure into the fuel tank. remember these things don't have a fuel pump so they use exhaust pressure to pressurize the fuel tank and force fuel into the carb. if your not getting pressure from the muffler take it apart and look for carbon build up in the outlet to the tank, common thing to happen on older r/c's i had 4 of those things in the past few years ago so i know a bit about them.
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