Quote:
What else did you see it on? A van? Industrial application?
I'm asking you, Jeb! 
...are you sure that all trucks with the slant six came the way that you describe
D/W
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| troubleshooting a flooding engine https://slantsix.org/forum/viewtopic.php?t=17047 |
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| Author: | cshunley [ Fri Apr 14, 2006 5:45 am ] |
| Post subject: | troubleshooting a flooding engine |
Hi, was riding my 62 valiant signet last night. after i got up on the freeway (rush hour DC) the engine began to run rough. cut out at idle, but restarted. at the next stop at idle the engine cut off and would not restart. flooded when i tried to restart. eventually got it running again but now need to solve the problem. the engine bliped up and down in short cycles just before dying. my buddy john opined that the carb float was hanging up with bubbles in the fuel line pushing it down, or a vapor lock issue, or the two together. i did note that the fuel line is up against a radiator hose, which could heat the fuel up en route to the carburetor (a carter single barrel). there was some slight seepage of fuel around the carb base, but really very little, just a touch moist not a real macho leak. going to be troubleshooting this weekend and was hoping some wise heads could share some thoughts on what to pursue. could the mixture valve be too rich? is the fuel too hot? we won't talk about the pinhole leak in the radiator i discovered when i raised the hood that i spent $400 getting overhauled last summer. thanks for any tips! cshunley |
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| Author: | SlantSixDan [ Fri Apr 14, 2006 7:39 am ] |
| Post subject: | |
The original '62 fuel line routing scheme was one of the more problematic ones from a heat perspective. Do the fuel line mod to get rid of problems from this area. Is the manifold heat control "heat riser" valve in your exhaust manifold working correctly, or is it stuck? |
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| Author: | Jeb [ Fri Apr 14, 2006 7:42 am ] |
| Post subject: | |
Route the fuel line over the valve cover using fuel injection hose and most of your hot starting/running problems will go away. Throw that metal line away, they are notorious for heating up a hurry and boiling the gasoline inside of them. Slantsix Dan has a link describing this method. Funny however, that most trucks came from the factory with the fuel line routed over the valve cover. Only on cars did they have the fuel line going around the devil's elbow to get to the carb. |
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| Author: | Dennis Weaver [ Fri Apr 14, 2006 7:45 am ] |
| Post subject: | |
What was the weather like the day you had trouble? Many gas stations are still serving up the winter gas formulation this time of year (higher vapor pressure) which is real problematic on slant sixes when you encounter the first warm days of the year. D/W |
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| Author: | Dennis Weaver [ Fri Apr 14, 2006 7:46 am ] |
| Post subject: | |
Quote: Only on cars did they have the fuel line going around the devil's elbow to get to the car.
You sure about that?D/W |
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| Author: | Jeb [ Fri Apr 14, 2006 7:47 am ] |
| Post subject: | |
Quote: Quote: Only on cars did they have the fuel line going around the devil's elbow to get to the car.
You sure about that?D/W |
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| Author: | Dennis Weaver [ Fri Apr 14, 2006 7:51 am ] |
| Post subject: | |
Quote: What else did you see it on? A van? Industrial application?
I'm asking you, Jeb! ...are you sure that all trucks with the slant six came the way that you describe D/W |
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| Author: | Jeb [ Fri Apr 14, 2006 8:51 am ] |
| Post subject: | |
I have seen a 68, 79, and 82 Dodge pickups with slant sixes that have the fuel line going over the valve cover. Let me rephrase that, most of the pickups had the line going over the valve cover, not all. |
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| Author: | cshunley [ Fri Apr 14, 2006 12:55 pm ] |
| Post subject: | |
thanks for the tips. i will work on the car in the next few days and circle back with a report. i believe the exhaust valve is working ok but i will check. gosh i hope i don't have to swap manifolds AGAIN. and i will look at moving the fuel line around to keep the fuel cool. it was a hot day (relatively speaking). thanks again! cshunley |
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| Author: | Dennis Weaver [ Fri Apr 14, 2006 12:57 pm ] |
| Post subject: | |
Quote: Let me rephrase that, most of the pickups had the line going over the valve cover, not all.
I didn't say you were wrong, Jeb. I honestly don't know, I've never owned a /6 pickup (though I've seen and worked on a few, but I don't recall how the fuel line was routed). I was asking you if you were sure they were all that way!D/W |
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| Author: | Jeb [ Fri Apr 14, 2006 5:43 pm ] |
| Post subject: | |
Here is a pic of the engine in my D-150. The fuel line is right behind the PCV valve.  I thought your blue truck had a slant in it? The other three slant pickups I have seen have had the same fuel line arrangement |
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| Author: | CStryker [ Fri Apr 14, 2006 7:20 pm ] |
| Post subject: | |
My '82 D150 also had the metal fuel line up and over the valve cover as pictured above. |
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| Author: | mopar_nocar [ Fri Apr 14, 2006 7:26 pm ] |
| Post subject: | |
shoot, now i have to go get my flash light and go look. sb |
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| Author: | mopar_nocar [ Fri Apr 14, 2006 7:57 pm ] |
| Post subject: | |
yep, right over the top of the valve cover. 1982 D150 sb |
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