Sandblasting Rotors
#1
One of my rotors had a sticky corner seal when I last rebuilt it that caused the engine to have low compression. This time I was going to sandblast them to ensure that they got nice and clean. Then I'll mess with that corner seal if it still has problems. I was just going to cover the bearings and do the whole rotors. I just wanted to make sure that using abrasives was okay on the seal grooves. I didn't think that it would wear down the material noticeably, but I just want to make sure.
#4
I absolutely do not recommend doing any of the above. Most of the time mishandling of the rotors causes dinks and problems on the seal grooves (mainly apex to corner seal grooves) that have to be filed out.
I use a gallon sized jug of Zep industrial cleaner (from Home Depot, $8/gal). I think it may damage the outer portion of the bearing so use new bearings. I use a brass brush to scrub them down.
B
I use a gallon sized jug of Zep industrial cleaner (from Home Depot, $8/gal). I think it may damage the outer portion of the bearing so use new bearings. I use a brass brush to scrub them down.
B
#8
I doubt people will like my method, but I've had good results with soaking in gas and using a toothbrush to dislodge the loose stuff. After the rotor is dry, I then wirewheel the faces with a fine bristle wheel. The gas doesn't hurt the bearings and cuts through the oil.
Gas is dangerous.
Gas is dangerous.