I changed my spark plugs on Sat and pondered how to clean the old plugs. After seeing how cola can clean coins, I decided using cola to clean my old plugs.
I firstly gave the plugs a clean with a steel brush and after 5 hours soaking I can see some black surface dissolving .
I hope this will work.

 

Good luck,

Just an advice that if you have altered the gap between the poles, the plugs are next to useless.

Me use fine sand blasting or don't be a tight *** - change the plugs.

 

I did change my plugs. This is just an experiment.
I brought 2 set of 4 plugs from repco for an awesome price.

 

hmmm...very unorthodox. I always thought a wire brush or sand blasting is the best way to clean plugs. I can't help thinking it would cause some long term damage. Takas right....be safe and stay with your replacement plugs.....

 

I'm after spark plugs myself after a failed attemp... what plugs did you get and how much were they?

 

Think about this next time you feel like a Coke...

 

The acid put into Coke and presumably other cola drinks is phosphoric acid, which at least has the benefit of being a source of dietary phosphate. The other acid commonly used in soft drinks is citric acid (found naturally in citrus and other fruits). The carbon dioxide put into fizzy drinks also makes them slightly acid. All drinks need to be acid so that consumers don't run the risk of botulism poisoning.

Phosphoric acid is also used (in much more concentrated form) in iron passivation formulations - it changes the chemical nature of rust, and puts a "passive", rust resistant layer on the iron or steel. I'm not sure of the composition of the ash deposit on spark plugs, so I couldn't guess what the effect of phopsphoric on these deposits might be.

Frankly, I would use sand or grit blasting to clean. I see a spark plug as an electrical device, and water is the enemy of such things. Also traces of acid left behind might assist in shorting out the plug.

 

Damn you labrat... I just brought a can of coke.

 

hmmm, my experiment continues;

After approximately 15 hours of soaking I decided to remove the coke stain by boiling the plugs for 2 hours; Looks good.
I then remove from the water and put into a area to dry thoroughly.
To be certain I will leave it for 2 weeks.

Disclaimer: This is only an experiment to see how cola can clean me plugs. Copy at your own risk.

 

when i was in middle school, they passed out this flyer to all the kids about the many uses of coke. a couple that stuck out:

1. when your drain is clogged, pour a can of coke down it. the acid will remove the gunk.
2. cops have a few gallons of coke in their trunks to clean up blood from the pavement...and it works. my friend got a bloody nose and it dripped all over his drive way. he poured a can of coke on it the next day and now it's gone

 

Wonder if the witches in Macbeth were brewing something similar...

 

They had decarbonating machine back then?

 

An early version...

 

Interesting reading;
http://www.brisksparkplugs.com.au/te...at-range.shtml

 

Let's not fuss too much about it, the acid content of Coke is pretty ****-weak. To put it into context, your stomach acid contains hydrochloric acid ("spirits of salts", "muriatic acid", "pool acid") and has a pH of aproximately 1. To a chemist, this means that the concentration is about 0.1 mol/L or about 3.6g/L hydrochloric acid. And hydrochloric acid is what we call a strong acid. Ask Taka about the effect of acid reflux on teeth.

Actually, cold water washes away blood pretty well. Just do it while the blood is really fresh. Then use household bleach to get rid of the last traces.

 

While the plugs are drying, these arrived today.

 

coca cola cant dissolve a chicken bone over night...you can also use it to clean out your toilet of skid marks left my heavy pieces of sht

 

Ok, I'm learning way more than I wanted to know in this thread...

 

Should I change the thread... what you can do with a can of coke?

 

Change it to "The meaning of COKE"