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  #1  
Old 08-27-2010, 03:44 PM
Draugauth Draugauth is offline
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Default Decarbon via Seafoam question

Is it normal for the engine to "diesel" after you shut it off when you are done with putting the seafoam in through the brake vacumm line? Mine dieseled long enough that I was able to get the vacumm line back on before it finally died.
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Old 08-27-2010, 05:11 PM
Draugauth Draugauth is offline
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Default Re: Decarbon via Seafoam question

Well on the 2nd application it dieseled far less. So the engine must have just been that dirty. Good thing I live around farms. Nice long straight streets with no stops and 50mph speed limits
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Old 08-27-2010, 05:25 PM
STL STL is offline
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Default Re: Decarbon via Seafoam question

What exactly do you mean by dieseled? A better description would be helpful.
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Old 08-27-2010, 05:31 PM
Draugauth Draugauth is offline
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Default Re: Decarbon via Seafoam question

When you turn off the ignition and it wants to keep running for a short while much like how a semi does.
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Old 08-27-2010, 05:33 PM
FireRanger FireRanger is offline
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Default Re: Decarbon via Seafoam question

I think you're using the wrong term. Dieseling is a term meaning the engine keeps running after you shut it off. It is not possible on fuel injected engines. When you shut it off, the fuel pump shuts off and the injectors shut off. There is no fuel to be ignited by hot cylinders or pistons. It is really only possible on carb engines with an engine driven fuel pump.

If I were to guess, you are referring to the sound it makes while applying lots of seafoam. That sound is poor combustion due to too much seafoam and has nothing to do with diesel anything.
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Last edited by FireRanger; 08-27-2010 at 05:35 PM.
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Old 08-27-2010, 08:01 PM
Draugauth Draugauth is offline
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Default Re: Decarbon via Seafoam question

Hence why I stated that I was able to take the keys out and hook up the vacumm line before it stopped. Tripped me out as well. But it did it for a far shorter amount of time the 2nd time around. Started up fine after the 1 hour break each time though.
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Old 08-28-2010, 04:11 PM
blueranger1801 blueranger1801 is offline
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Default Re: Decarbon via Seafoam question

I know what Draugauth is talking about when he says its "Dieseling". It may not be the right term for this situation but it is very similar to what a semi does when you turn it off. I have Sea foamed both my ranger and my girlfriends Taurus and after i finished pouring the bottle on both of them and turned off the car it would still continue to run but with each revolution it would gradually lose power until it finally had no more strength for another revolution and it would finally stop. and it does this really roughly too like it looks like the damn thing is going to jump out of the car.

I am not sure why this happens but i can only guess that since its happened every-time i have sea-foamed and has happened to other people that have sea-foamed including yourself that it is a common and normal thing to happen?

the first time i sea-foamed and this happened to me i got scared thinking i had done something wrong and ruined my engine. My second thought was to turn off the car but when running back to the cab of the truck i realizes that I ALREADY DID TURN IT OFF! LMAO.

well anyway. Can someone please explain why exactly this happens? If it helps just read the way i described it.
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Old 08-29-2010, 08:39 PM
FireRanger FireRanger is offline
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Default Re: Decarbon via Seafoam question

I don't know why it would do this as it should be phsyically impossible. There is no fuel to burn. There is no spark to ignite anything. And it's soaked in seafoam so it certainly isn't hot. If anything it is usually difficult to keep it running if you ingest too much seafoam at once while it's still on. So none the less, no this is not normal.
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Old 08-30-2010, 11:13 AM
Draugauth Draugauth is offline
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Default Re: Decarbon via Seafoam question

Quote:
Originally Posted by FireRanger View Post
I don't know why it would do this as it should be phsyically impossible. There is no fuel to burn. There is no spark to ignite anything. And it's soaked in seafoam so it certainly isn't hot. If anything it is usually difficult to keep it running if you ingest too much seafoam at once while it's still on. So none the less, no this is not normal.
Dieseling requires fuel, heat, and compression. Seeing as each treatment of seafoam reduced the effects more and more, I would guess that the carbon provided built up heat and fuel with the rotating mass providing the compression. 4th treatment of seafoam and the engine died as soon as the key was turned off.
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