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Carter YF leaking fuel |
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Scott21 
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Joined: Apr/23/2015 Location: New Jersey Status: Offline Points: 11 |
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 Topic: Carter YF leaking fuelPosted: Feb/13/2019 at 9:28am |
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Hi everyone.
I just had my carter YF rebuilt. YF6431S It now spills fuel out when I shut off the motor. Rebuilder says its the charcoal canister, Bypassed the canister to just an open vent and this did not help. The shop keep saying the carb is fine. I do not want to open the car because of it will void the warranty. Any Suggestions? Scott |
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vinny
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Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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Posted: Feb/13/2019 at 10:24am |
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I am not familiar with that carburetor but it sounds like the float level is set too high or the pintle is not seating properly to control the fuel level.
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Scott21
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Joined: Apr/23/2015 Location: New Jersey Status: Offline Points: 11 |
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Posted: Feb/13/2019 at 10:29am |
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Thanks Vin, that is what I'm thinking too.
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purple72Gremlin
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Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16614 |
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Posted: Feb/13/2019 at 12:23pm |
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float sticking.. Id be telling your "rebuilder" BS.
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Scott21
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Posted: Feb/13/2019 at 2:49pm |
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HA HA...That's where i'm headed now!!
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FSJunkie
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Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4742 |
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Posted: Feb/14/2019 at 2:09am |
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I assume your car is a 232 I6 from 1973-1979? Yeah, I have been daily driving one of those for the last five years and 40,000 miles.
The float is sticking or adjusted wrong. There is no way a YF should leak like that or for the charcoal canister to cause it. The shop needs to suck up their pride and admit they made a mistake. Print out this forum thread and show it to them to convince them that they are wrong. Fools. This is why EFI sells, because mechanics these days are incapable of properly setting the float on what is one of the simplest carbruetors ever made. The YF has existed since the U.S. invaded Korea, and was installed on the Jeeps that invaded Korea. |
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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Scott21
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Joined: Apr/23/2015 Location: New Jersey Status: Offline Points: 11 |
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Posted: Feb/14/2019 at 7:13am |
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Correct with the years. Went back to re builders and they said the went over it again and replaced the float just to be sure. Going to try it out on Saturday.
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FSJunkie
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Posted: Feb/15/2019 at 3:07am |
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It very well could've had a sunk float. Brass floats can get pinholes and leak. They work fine for a while until the float fills with fuel and sinks. Then the carb floods.
The original float should have been Nitrophil (plastic). I've never seen one of them fill with fuel but I suppose it can happen. Most YF's use a spring-loaded needle seat. The proper adjustment is to flip the air horn upside-down and let gravity pull the float down against the needle spring, partly but not fully compressing it. That is when the float level measurement is taken. Mechanics sometimes make the mistake of applying pressure to the float to compress the needle spring fully and that gives an improper float adjustment. Still shouldn't make it flood, but it'll make it run rich or lean. YF's are good carbs. I've been daily driving one through thick and thin for the last 40,000 miles. The only things I can think of to look out for on them is the float adjustment as I said, the metering rod adjustment, and to not over tighten the float bowl screws. Pretty standard stuff. Edited by FSJunkie - Feb/15/2019 at 3:09am |
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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tyrodtom
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Joined: Sep/14/2007 Location: Virginia Status: Online Points: 6214 |
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Posted: Feb/15/2019 at 9:28pm |
When did the US invade Korea ? North Korea invaded South Korea in June 1950. The UN sent troops ( mostly US troops ) to defend South Korea, at their request, that's hardly a invasion on our part. The Carter website says they started putting YF's on Jeeps in 1952, during the Korean War.
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66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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Scott21
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Joined: Apr/23/2015 Location: New Jersey Status: Offline Points: 11 |
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Posted: Feb/19/2019 at 7:34am |
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Thanks. I ordered and float and needle/seat. Lets see how it goes.
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FSJunkie wrote: