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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> engine wont idle, or stay running
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Topic Review (Newest First)
08-10-2009 12:27 PM
Torque454 If it has the juice to start the engine shouldnt the battery have enough power to run the pump and ignition system? It does sound fuel related. Did you check the fuel filter? Needle stuck in the seat? Floats low?
08-10-2009 06:13 AM
T-bucket23
Quote:
Originally Posted by lowandloud91
mk ill do that and see what happens. i know this shouldnt matter at all, i dont think anyways, but my belt is not on. it should run without that right? if the carb adjusting does not fix the problem what should i do next?


thanks for all the input!
If you are talking about the alternator belt, yes it can make a difference. Low voltage will cause the ignition to be weak and your electric pump to pump less.
08-09-2009 11:36 AM
lowandloud91 mk ill do that and see what happens. i know this shouldnt matter at all, i dont think anyways, but my belt is not on. it should run without that right? if the carb adjusting does not fix the problem what should i do next?


thanks for all the input!
08-08-2009 05:33 PM
carsavvycook
Quote:
Originally Posted by lowandloud91
the back float level registers about 1/4 way on the window(there is 3 horizontal lines its at almost the first one) and the front does not even register unless u shake the truck and then it sloshes a little bit on the window. there is four little screws(2 on each side of each bowl) that i have turned 2 1/2 turns out. there is also two larger screws on top of each bowl with a nut. im not sure how to go about adjusting them but when i try to back the screw out some to i assume allow more fuel and tighten the nut, the nut will not tighten and fuel leaks out.
It sounds like the front bowl is running low of fuel. In adjusting the float level, you need to loosen the screw, and turn the nut counter clockwise. I have found that 3 & 1/4 to 3 & 1/2 threads showing on the threads above the float bowl(with the nut removed) is pretty close to the right setting.

When you 'tighten' the 'nut', you are lowering the float level.
08-08-2009 04:53 PM
lowandloud91 the back float level registers about 1/4 way on the window(there is 3 horizontal lines its at almost the first one) and the front does not even register unless u shake the truck and then it sloshes a little bit on the window. there is four little screws(2 on each side of each bowl) that i have turned 2 1/2 turns out. there is also two larger screws on top of each bowl with a nut. im not sure how to go about adjusting them but when i try to back the screw out some to i assume allow more fuel and tighten the nut, the nut will not tighten and fuel leaks out.
08-08-2009 03:05 PM
T-bucket23 I would check the float levels next. Also make sure all your vacuum ports are plugged or in use
08-08-2009 10:41 AM
lowandloud91
Quote:
Originally Posted by randyhemi
sounds like fuel issues. did you install an electric fuel pump when you did all this work?? from what you discribe you are running out of gas in the carb.

yes i have an electric fuel pump
08-08-2009 10:40 AM
lowandloud91 well i found out i had an open vacuum port on the intake, i plugged that and a buddy did some carb adujstment and now it idles for about a min or so and then sputters off. also sometimes itll start rite up and sometimes, and sometimes it wont.
08-07-2009 05:43 PM
randyhemi sounds like fuel issues. did you install an electric fuel pump when you did all this work?? from what you discribe you are running out of gas in the carb.
08-07-2009 03:23 PM
techinspector1 Check to see if you have a vented fuel tank cap.
08-07-2009 09:43 AM
lowandloud91 ok ill check that out and see what happens...but what if it checks out to be ok?..and what if it does not?
08-07-2009 06:41 AM
T-bucket23
Quote:
Originally Posted by lowandloud91
the carb and intake gasket are brand new, and yes itll start back up.....i once started it and held it at about 3000 rpms and it stayed there and then it just shut off like i turned the key off, vacuum ports look good also
If it starts right back up it could be running out of fuel. Generally an electronics(ignition) issue will take a while to cool before it will work again.
I would start buy checking your float levels and put a fuel pressure gauge on it.
08-06-2009 08:53 PM
lowandloud91 yes ive let it warm up, but it does have an elec choke
08-06-2009 08:08 PM
DoubleVision Have you let it warm up then checked the idle? Cold engines with no choke aren`t known to idle
08-06-2009 05:14 PM
lowandloud91 the carb and intake gasket are brand new, and yes itll start back up.....i once started it and held it at about 3000 rpms and it stayed there and then it just shut off like i turned the key off, vacuum ports look good also
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