Up until today my truck was running fine but now when I start to speed up it dies. It's not running too hot and I'm not running a body. Acceleration is snappy but it just dies after a few seconds of open throttle, or even half throttle. What's goin on?
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Engine dies...
- Thread starter Kodama
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- Thread starter
- #3
Well, I readjusted my carb to factory break in settings and now it seems to idle even better. But I haven't tried hitting full speed. I checked my fuel lines and stuff and it's fine, filter is clear. The only thing I've changed is the length of my fuel line. I added about 3 or 4 inches today. COuld that be the problem?
canadian-mgt
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- Thread starter
- #8
This is pissing me off now. It won't idle, it won't speed up at all, it won't run on it's own. It still does what it's doing even with the factory settings. I don't know what the hell to do, and right now I'm too frustrated to keep trying.
i just tuned mine about ten minutes ago set it at the factorys and very slowly only turning the needles about the size of a flat head screwdriver if that makes sents. mine kept jumping when it was idoling so i turned the idol needle to the left to stop it then slowly worked back up only a little.
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Adjust your LSN and idle screw till it idles well and will run up to half throttle. (get it to running temp before you finalize any settings) When it idles properly, throttle it to half and see if it stalls or bogs down. If it stalls, it's too lean. If it bogs, it's too rich.
Now go to full throttle. This is when you adjust your HSN. Same thing. If it bogs, it's too rich, stalls, it's too lean.
When it seems to be running good, pinch the fuel line. It should speed up slightly and then stall within 3 - 4 seconds. If it stops quickly, your LSN is too lean. If it takes longer, the LSN is too rich.
Drive it for a while and then take a temp check to make sure it's at the proper temp. If it's too hot, richen the HSN.
You will have to make small adjustments on the HSN almost daily to compensate for outside temperature and humidity.
By the way, the factory settings are for break in, or a starting point if you really messed things up. Once an engine is broken in, don't expect it to run right by going to those settings.
Now go to full throttle. This is when you adjust your HSN. Same thing. If it bogs, it's too rich, stalls, it's too lean.
When it seems to be running good, pinch the fuel line. It should speed up slightly and then stall within 3 - 4 seconds. If it stops quickly, your LSN is too lean. If it takes longer, the LSN is too rich.
Drive it for a while and then take a temp check to make sure it's at the proper temp. If it's too hot, richen the HSN.
You will have to make small adjustments on the HSN almost daily to compensate for outside temperature and humidity.
By the way, the factory settings are for break in, or a starting point if you really messed things up. Once an engine is broken in, don't expect it to run right by going to those settings.
- Thread starter
- #11
Wow, thank you. That's what I've been looking for. I need a person like you Rolex to call on when my truck starts to act up. Thanks alot. It seems to be running good now, but everynow and then it still dies when it's a little passed half throttle.
Later.
Later.
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If you've gotten it that far, chances are you only need to tweek your HSN now. Richen it up a little at a time. If it starts getting boggy on you, you've taken it a little too far. lean it a bit.
Keep me posted.
Keep me posted.