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Old 09-18-2014, 05:52 PM   #29
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Deffinantly will do that. Although the insulation on the gas lines seems to have eliminated my issue. Put a snorkel kit on the carb. This thing has a lot of power now. I could burn rubber now. LOL! Thanks for the help everybody!
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Old 09-18-2014, 06:15 PM   #30
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If it has not already been mentioned! I had a very similar Class C with the 440 Dodge that had a fuel starvation/vapor lock problem. I made many corrections and fuel line insulation as you have. The final cure was where the steel fuel line connects to the top of the gas tank, there was a short piece of rubber fuel line that had gone bad with cracks and just plain wore out from age. It would suck air along with fuel and cause the engine to starve for fuel when on a grade or when I had my foot in the carburator. I guarantee that's your problem.

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Old 09-18-2014, 06:19 PM   #31
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Hey Sammie thanks!! Get under there and take a look. Better fix that while I'm working on the rest. Last thing I want is a cracked fuel hose. That could be dangerous. Yikes!!
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Old 09-18-2014, 06:31 PM   #32
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Quote:
Originally Posted by cimplexsound View Post
Hey Sammie thanks!! Get under there and take a look. Better fix that while I'm working on the rest. Last thing I want is a cracked fuel hose. That could be dangerous. Yikes!!

I fought the vapor lock issue for years until I finally found the stupid piece of bad rubber fuel hose at the top of the tank. Another helpful thing to do is to run a radiator water spray system that you can turn on when climbing long, steep, hot uphill grades. It will cool down the radiator and help to keep your throttle foot from burning up.

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Old 09-18-2014, 06:55 PM   #33
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Deffinantly will do that. Although the insulation on the gas lines seems to have eliminated my issue. Put a snorkel kit on the carb. This thing has a lot of power now. I could burn rubber now. LOL! Thanks for the help everybody!

Snorkel kit?
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Old 09-18-2014, 09:00 PM   #34
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good to see its running better

but one more to keep in mind vapor lock issue is not all ways heat

when pulling fuel down a long line form the tank and say the screen in the tank starts to get trash in it the vacuum alone from the fuel pump trying to pull the fuel can make vapor in the line

add we have on some RV 20 to 35 feet from fuel line

but yeah heat tap works really good to in the lines any where the could get hot
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Old 09-18-2014, 09:21 PM   #35
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You mean an engine sprayer? I have heard a lot of newer motorhomes have those as a standard feature. My rv usually doesn't have overheating issues even on steep hills. in fact it runs like a charm. it's just been this vapor locking issue when the motor is turned off and not running. However I Wonder if I could rig a sprayer off the windshield washer?

Problem with radiator is I cannot add any spray type unit to it. Especially now that's it's preped for winter. ( Full of fresh antifreeze.
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