Hypothetically speaking: if sodium bicarbonate from a fire extinguisher were to make its way into an intake manifold, could it score the cylinder wall and damage the valve train? Suppose it wasn't a particularly large amount and as much as possible was vacuumed/cleaned out of said manifold. Would the best course of action be to remove the heads?

 

I wouldn't think that dry chem would damage any internals. Years ago we would but bon ami in the spark plug holes to free up junk yard engines and help seat piston rings. Fire it up and then change the oil is what I would do

 

That doesn't sound very hypothetical to me at all!

I agree with spikebot, I don't think it'll do any harm.

Scott

 

What d'ya do?

 

Really??? Hypothetically???

There is a story here, isn't there...

John

 

 

Pull all of the spark plugs, disconnect coil wire from distributor and earth it, hold throttle open fully then wind car over for thirty seconds or so, this should blow out the bicarb.

 

I would have thought that powder of any description, whether inert or not would absorb any moisture present within the engine - including lubricant (with any issues that may cause)

 

No, no. Nothing to see here. I just like to imagine ridiculous scenarios involving my Corvette...

 

did it have a tummy ache or did it catch fire. sodium bi carb is good for both.

 

[/COLOR]The dry chemical powder used in ABC fire extinguishers is corrosive. Boeing has a large section in their maintenance manual devoted to cleanup procedures. And a service letter stating that all extinguishers should be swapped over to a clean agent.
From wiki;
monoammonium phosphate:also known as "tri-class", "multipurpose" or "ABC" dry chemical, used on class A, B, and C fires. It receives its class A rating from the agent's ability to melt and flow at 177 °C (350 °F) to smother the fire. More corrosive than other dry chemical agents. Pale yellow in color.
sodium bicarbonate: "regular" or "ordinary" used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire. That is, the gas drives oxygen away from the fire, thus stopping the chemical reaction. This agent is not generally effective on class A fires because the agent is expended and the cloud of gas dissipates quickly, and if the fuel is still sufficiently hot, the fire starts up again. While liquid and gas fires do not usually store much heat in their fuel source, solid fires do. Sodium bicarbonate was very common in commercial kitchens before the advent of wet chemical agents, but now is falling out of favor, as it is much less effective than wet chemical agents for class K fires, less effective than Purple-K for class B fires, and is ineffective on class A fires. White or blue in color.

 

Back in business. Thanks, fellas.

 

Back in business? There has to be a story that your not sharing with the class. Come on man spit it out. We want to here.

 

C'mon, man, dish! Fire extinguisher fight in the garage? Carb fire? Drunken rampage?

Scott

 

Or an angry wife/girlfriend/significant other? Better than sugar in the tank, I guess.

 

I could imagine a scenario where someone might be on V.A. meds.....cause a flooded engine to backfire thru the carb with the air cleaner removed....and pso.....possibly......need a fire extinguisher

 

I could imagine a 427 coupe sitting in a garage hiccups during starting (hood open, no aircleaner in place) resulting in a backfire thru the carb that shoots a column of fire 2 ft into the air. Could also imagine a backfire from the same car that sounds like a rifle going off, splitting both mufflers on the car and resulting in women and children running for cover with concerned looks on their faces, only to discover the dogs beat them to the door.

Hypothetically speaking...

 

You can't leave us hanging like this! It ain't right, I tells ya, it ain't right!

Scott

 

Little engine fire. No damage. Good thing I had an extinguisher on hand, or I'd be asking for insurance advice...

 

Most people start these threads with."Asking for a friend." Nice to see a variation on the usual BS.