View Full Version : abrasive spark plug cleaner

01-19-2007, 09:27 PM
harbor freight has an abrasive spark plug cleaner that you screw the plug in, and you hook up your air compressor to it, and it cleans the plug like new.
assuming the engine is running fine, when you take the plug out, would it be like installing a brand new plug? i have always just replaced plugs regularly, but i'm probably replacing 30 plugs a year, if not more. just talking equipment here. it's on sale right now for 6 bucks, normally around 20 i think. what are your thoughts on this?


01-19-2007, 11:12 PM
All this thing does is remove any carbon build-up from the spark plug tip and further round the flat edge on the center electrode, It is not like a brand new plug.

Another thing, The porcelain (white center part) is made in a tapper down to the metal casing inside. This is a place for sand to get jammed and stuck until the spark plug heats up, Then the sand dislodges right into your cylinder.

IMO, I wouldn't recommend using any type sand base cleaner on a spark plug.
You could clean carbon deposits safer on a bench grinder with a wire wheel going lightly so not to further round the center electrode.

01-20-2007, 12:26 PM
Thanks I appreciate your opinion, was hoping you would respond.


01-20-2007, 12:29 PM
plugs r cheep and if the need to be cleaned i would replace it anyhow if the plug fouls a lot its a carb problem that needs fixed

John Gamba
01-20-2007, 01:40 PM
you can end up with grit in the cylinders:cry:

01-20-2007, 06:43 PM
If you MUST use an abrasive cleaner, use plastic beads.

01-20-2007, 07:07 PM
I have one and use it alot...cheaper than buying new plugs all the time.

Yes it does run like new plugs in it

01-20-2007, 08:05 PM
Its an old school machine from the time when spark plugs were much more expensive relatively than they are today. Today its cheaper to grab a new plug off the shelf....

01-20-2007, 08:29 PM
Yes it does run like new plugs in it

Well, I would hope so after all the carbon build-up etc. is removed. But the fact remains the center electrode is still burnt and has a rounded edge so it's not like installing a new plug. And you still have the possibility of getting sand that is stuck in the plug into the cylinder.

01-20-2007, 08:47 PM
Plugs are cheap i buy bulk pack in 24 count in a Styrofoam pack sometimes as cheap as 11 bucks a pack.

A.D Services
01-21-2007, 12:49 AM
i was just about to say, that plugs are so cheap these days, why not just go get a new one?

01-21-2007, 01:34 AM
Like most here I just buy new plugs. Like Rob said the sand will get in the bore and eat it up. New plugs are alot cheaper then a new engine.