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-   -   engine wont sustain running!! (https://www.rctech.net/forum/nitro-off-road/306526-engine-wont-sustain-running.html)

traxxasman104 06-22-2009 09:59 AM

engine wont sustain running!!
 
so got my car running today but i had to put fuel directly into the air filter hole into the carb. priming wouldn't work. and then i would have to keep throttling it to keep it running.:tire::flaming: what is wrong with this!:cry:

megasaxon 06-22-2009 11:11 AM


Originally Posted by traxxasman104 (Post 5969807)
so got my car running today but i had to put fuel directly into the air filter hole into the carb. priming wouldn't work. and then i would have to keep throttling it to keep it running.:tire::flaming: what is wrong with this!:cry:

what kind of car? engine? fuel? glowplug? how much fuel has been run through the engine?

losiracer78 06-22-2009 12:10 PM


Originally Posted by traxxasman104 (Post 5969807)
so got my car running today but i had to put fuel directly into the air filter hole into the carb. priming wouldn't work. and then i would have to keep throttling it to keep it running.:tire::flaming: what is wrong with this!:cry:

Sounds like a tunen issue to me but need more info as to how much fuel has been though it and is the motor broke in . What kind of motor is it.

Fabulous 06-22-2009 12:18 PM

Could be a number of things that have been mentioned. Bad glow plug, idle adjustment, low end adjustment, cracked fuel lines allowing to much air, bad clutch bearing or springs.

SteveP 06-22-2009 12:27 PM

Well, if he literally "just got it running," then I doubt the problem is anything as severe as that. The post is a little ambiguous, so it's hard to know what vehicle or how old it is. I'll assume that it's a new car.

I'll guess that the low-speed mixture needle is too rich. Pinch the fuel line leading to the carburetor once you get the engine started. you might notice the engine speed increasing slightly, which is normal. If it really revs like crazy, then you have a rich low-speed mixture and a poor idle speed setting. It should only take you a few minutes. The engine should only run for about 8 seconds once you've pinched the fuel line. If it takes longer to stall, then lean the low-speed mixture setting until the engine has a stable idle and wants to stall in the aforementioned timeframe.

megasaxon 06-22-2009 02:42 PM


Originally Posted by SteveP (Post 5970404)
Well, if he literally "just got it running," then I doubt the problem is anything as severe as that. The post is a little ambiguous, so it's hard to know what vehicle or how old it is. I'll assume that it's a new car.

I'll guess that the low-speed mixture needle is too rich. Pinch the fuel line leading to the carburetor once you get the engine started. you might notice the engine speed increasing slightly, which is normal. If it really revs like crazy, then you have a rich low-speed mixture and a poor idle speed setting. It should only take you a few minutes. The engine should only run for about 8 seconds once you've pinched the fuel line. If it takes longer to stall, then lean the low-speed mixture setting until the engine has a stable idle and wants to stall in the aforementioned timeframe.

well judging by his other posts, he has a nitro rustler, and seems to have had it for a little while? hard to tell exactly


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