Engine Internal Cleaning
 

During a rebuild, what do you guys use to clean the carbon from the rotors and housings?

I soak it in degreaser, like simple green. Then use a high powered gas steam cleaner and blast the crap off. Takes awhile to get it all clean. But eventually it ends up all *bling*

I soak them in kerosene, and then take a wire brush to the rotors. For the rotor housings, and end housings, I spray with degreaser and take the pressure washer to them.

ATF maybe? Hey just a suggestion.

Racing beat recomends that you soak them in solevent and use a brush or wooden dowel to get off the carbon. They say specificly not to use wire brush or metal as it will destroy the apex seat.
I can quote it if you like. I have the book next to me

I meant on the faces of the rotor. I use something less abusive on the apex seal area.

When using a wire brush, always make sure the type of wire is softer than the netal you are cleaning. Otherwise you will scratch what you are trying to clean. A brass wire brush should be softer than the aluminum and iron.

Lots and lots of solvent also helps. That and some good ole elbow grease. :)

The easiest is to soak in Kerosene or ATF fluid. The carbon will soften up a bit and use a scraper on the rotors. On the apex seal groove I use a feeler gauge and gently scrape off any carbon in the area. Most of the time. just a swipe with a cloth dipped in kersone does the job. Don't use a wire brush . A paint scraper does it sooo much easier.