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-   -   How do I clear excess fuel from cylinder to prevent a Run Away engine? (http://www.peachparts.com/shopforum/showthread.php?t=168702)

Jadavis 10-26-2006 11:41 PM

How do I clear excess fuel from cylinder to prevent a Run Away engine?
 
The intake manifold is off for cleaning, new glow plugs, new injector return lines, and ALDA adjustment. While there I noticed that the intake ports in the head were gunked up also. I did a good job of cleaning them with a stiff plastic bristled brush, a tooth brush, and some WD40. Now I have WD40 in there...:dizzy2:

I stuck rags down in and soaked up the puddles on the valves that were shut. I'm sure that I got WD40 into at least a couple of the cylinders.

How do I clear excess fuel from cylinder to prevent a Run Away engine?

I'm thinking of turning the engine over a few times with the secondary fuel filter unscrewed and with the glow plugs removed. Sound good?

-Jim

Hatterasguy 10-26-2006 11:45 PM

I wouldn't worry about a little WD40. For future reference you shouldn't do that. Knock some crap into the cylinder and before you know it you are doing a valve job!:eek: The EGR tar residue left on the valves will clear up after a few thousand miles on its own.

ForcedInduction 10-26-2006 11:47 PM

Just start it. Unless you put ALOT of it in there (like 1/2 the can), nothing will happen. The worst you might see is some smoke out the exhaust once it gets running.

Jadavis 10-27-2006 12:05 AM

Quote:

Originally Posted by ForcedInduction (Post 1314457)
Unless you put ALOT of it in there (like 1/2 the can)


Yep, that sounds about right, 1/2 of a short can. I soaked up a good bit of it though. I suspect that by the time I get everything back together it will have made it's way around the rings and into the engine oil.

-Jim

Jadavis 10-27-2006 12:07 AM

Quote:

Originally Posted by Hatterasguy (Post 1314455)
The EGR tar residue left on the valves will clear up after a few thousand miles on its own.

The valves looked good. The ports leading down to the valves that were gunked up with soft, thick oil.

-Jim
(It's funny getting responses from the two of you. I am reading the "Removed my ALDA" thread right now. Both of you are all over that thread.)
http://www.peachparts.com/shopforum/showthread.php?t=162744&page=6&highlight=alda

nhdoc 10-27-2006 07:00 AM

I suppose in theory you could have sprayed eneough into a cylinder to create a problem with hydro-locking which would concern me far more than creating a run-away condition...in order to run away the fuel would have to be continually added otherwise it would just burn up after a few revolutions, but if you put liquid of any kind down into the cylinder and it was enough to fill the area left for compression...well...that's a formula for real disaster...but I don't know how much you sprayed in there.

Jadavis 10-27-2006 10:20 AM

About 4 oz of WD40 spread across 6 cylinders. Of that about 1/2 went down the side of the block. I doubt hydrolock will be an issue.

-Jim


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