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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
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post #1 of (permalink) Old 07-04-2002, 02:30 PM
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Starting problem

OK, to start things off, I have a 1990 Jeep Wrangler YJ with an inline 6. The carb isn't the original, according to the guy I bought it from. In the Chilton's repair manual, it looks like there's only one metering screw on the carb, the one that's in my Jeep has two metering screws on the front. According to this guy, the carb was rebuilt before it was installed.
When I try to start it after it's been sitting a while (2 or 3 hours), the engine will crank over, but it takes about 45 seconds for the thing to catch and actually start. My friend tells me that it's due to the gas following the line back into the tank, which makes sense to me, my 79 Firebird Formula had the same problem. Does anyone have any suggestions on how to diagnose/reslove this problem? Any help would be much appreciated.

--Bill
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post #2 of (permalink) Old 07-05-2002, 07:06 AM
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Re: Starting problem

I would figure it much more likely that something is letting gasoline leak out of the carb into the intake manifold. Could be a bad gasket, leaky needle valve, loose screw or several other things.

To check it, next time it doesn't start immediately, dribble a little gasoline into the carb. If it starts right up your friend was right. If it still cranks, and takes even longer to start, it was flooded.
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post #3 of (permalink) Old 07-05-2002, 10:42 AM
 
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Re: Starting problem

in the stock 258 fuel filter, there's a check valve to help stop the fuel drain. mine starts right up(first start od the day), but sometimes stalls right away, and then starts right up. my guess is that fuel hasnt made its way past the regulator fast enuff to refill the bowl and stalls. no big deal, just one of those things that ya learn to live with
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