Water in Gasoline - Team Camaro Tech
Tech 2002 General Tech questions from 2002
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post #1 of 8 (permalink) Old Apr 27th, 02, 10:15 AM Thread Starter
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Jim
 
Join Date: Aug 2001
Location: Forks, PA USA
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Hey guys, I was just helping a friend out with his 77 Nova with a 454 under the hood. The damned thing won't idle... it'll just cut out all of a sudden. Anyway, it turns out after replacing the fuel filter with a clear plastic one, we noticed there was a foreign liquid at at the bottom of the filter canister. Water is more dense than gasoline, so obviously this is 99% most likely the problem (gas=.73g/ml and water=.93g/ml). Oh yeah, did I mention he had the car parked outside without a gas cap on the tank for a little while..... hehehe
Of course the best thing to do is drop the tank and flush the system because who knows how much water got into the damn thing. Any other ideas??? I've heard about the gas additive, but I doubt it'll work for this situation, that stuff is for condensation, not for mistakes like leaving the gas cap off...
Is there anything we should be concerned about??? How destructive can this be, the engine was able to run at a highier rpm (sometimes), but then it would shut down at idle real quick.

Thanks....


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post #2 of 8 (permalink) Old Apr 27th, 02, 11:43 AM
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Mark
 
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Use the gas tank additive. That stuff works like a charm. Might need 2 bottles. "DRY GAS" works for me.

-Mark.
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post #3 of 8 (permalink) Old Apr 27th, 02, 12:10 PM
 
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Also, the whole "sediment bowl" concept might work. I think you can get such things for lawn tractors and whatnot. Imagine a clear bowl that flows fuel through it. All the contaminants get settled to the bottom of the bowl and allow the lighter fuel to pass through. Kinda the same concept as your fuel filter, but the sediment bowl is quite a bit larger. A thought anyway.
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post #4 of 8 (permalink) Old Apr 27th, 02, 12:13 PM
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Rick
 
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Make sure you get the isopropyl alcohol type of dry gas. They also make methanol which won't do the job. How do I find these things out.

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post #5 of 8 (permalink) Old Apr 27th, 02, 01:45 PM
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Matt Jones
 
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Shouldn't water be 1g/mL? I'm just curious why you said .93g/mL.

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post #6 of 8 (permalink) Old Apr 27th, 02, 05:47 PM Thread Starter
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Jim
 
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Yeah man, duh, yes water should be 1g/ml. I found that .93 on some website... I knew I should have looked in my physics book. Maybe if i didn't drink so much beer last thursday I would have remembered that number off the top of my head anyway...

Thanks for the tips guys, my friend said he bought some $1.50 additive and it cleared right up and it's running sweet.

But again, is there anything we should check to see if it has been damaged from the water?

Jim

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Soon to be 327/275hp
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post #7 of 8 (permalink) Old Apr 27th, 02, 10:27 PM
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Joe
 
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I doubt if it hurt anything. We used to inject water into the carbs back in the 60's-70-s to make more power!

joe

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post #8 of 8 (permalink) Old Apr 28th, 02, 11:15 PM
 
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The worst that the water would do is possibly rust a bit of the tank. I had this happen to my van, and over time the pickup tube got plugged up with flakes of rust.
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