Engine starts but stalls after throttle increase. Help!
#1
Engine starts but stalls after throttle increase. Help!
I was driving my car around in circles at a dirt parking lot and it was running fine, but all of a sudden it stalled. I let it sit for awhile, and when I started it back up again it immediately stalled when I increased the throttle. If I increase the throttle very slowly it will run fine at very low speeds, but if I increase any more than about 1/4 throttle the car stalls. Since I lack a starting mechanism at the moment I'm not sure if its out of tune, but it was running extremely well before and I didn't change environments or anything. I also periodically spit a giant wad of spit on the engine head while running it in this parking lot, and every time the spit evaporated in 4+ seconds, so I don't think I overheated the engine. The air filter was a two stage well oiled air filter which stayed on the engine the whole time. What could be causing this? The engine is a Macstar .28.
#6
Could be an air leak or a cracked case also.. hard to diagnose over the interwebs.
#7
What does this have to do with the glow plug? I already said it starts fine. Correct me if I'm wrong but doesn't the glow plug become a fancy hunk of metal after the engine is started? I was under the impression it served no purpose after it started.
#9
Tech Lord
iTrader: (52)
You cant go forever with 1 plug anyway..you did change it after you completed engine break in right?
Last edited by Jaz240; 07-10-2009 at 09:53 PM.
#10
But I'm still confused. How does the plug stay hot after the ignitor is disconnected and there is no power to it? And even if it did stay hot, how would that affect the combustion? Isn't the chamber hot enough to sustain the combustion without the heat of the glow plug?
#12
I have not replaced the plug since I bought the car.
But I'm still confused. How does the plug stay hot after the ignitor is disconnected and there is no power to it? And even if it did stay hot, how would that affect the combustion? Isn't the chamber hot enough to sustain the combustion without the heat of the glow plug?
But I'm still confused. How does the plug stay hot after the ignitor is disconnected and there is no power to it? And even if it did stay hot, how would that affect the combustion? Isn't the chamber hot enough to sustain the combustion without the heat of the glow plug?
#13
Tech Addict
iTrader: (8)
A good writeup on how glow plug works and how to select the right one to use.
http://www.bsrcc.com/glowplugs.htm
http://www.bsrcc.com/glowplugs.htm