This is how to polish, we write in this field compressor Eaton M112
First of all you need to remove it to disassemble the compressor, remove the pulley while still on the car. After the car remove the bypass valve, sensors and everything bolted in, intercooler included. At this point you can strip paint, or do it later, the notes below on this step.
Then you have to disassemble the blower, it's as easy as unbolting the snout and pulling. Once you get the muzzle you will need to pull out the middle part, the rotor will be with this section.
Now, when you blew into 3 pieces you can go all out and break every piece down as the removal of gears, shafts, etc., or just tape off areas.
It is far easier to strip from the area, so after you remove the gasket maker on the edge of the snout, and the middle of the case, you can seal those off with duct-tape. Tape back on the snout, the speed side of the middle section, and then the rotor section, you can wrap the rotor in bubble wrap and then in the full tape, you want to seal all internal areas of the strip. Clean the inside of the case with acetone in the cloth, and carefully clean the area around the rear bearings, tape those off now, you can not let anything get in the bearings.
Now that all the internal parts are sealed blowers can strip paint off, just a brush of air craft finishing move, and let it sit for 10 minutes, and then wire brush the color off. You can also do it while the blower is still expensive.
Now that the paint is removed it is time to start sanding. I use a 2hp polishing machine with a specific grit grinding wheel, it is not practical for the weekend warrior, so I'll explain the grinding process using simple tools, if you are curious about their specialized machine for polishing free to PM me, it's about $ 800 investment that will reduce 20 hours polishing job to 2 hours.
The first step in polishing is to choose your sandpaper, Home Depot sells 20 list of packages and you'll want a lot of paper, buy 80, 120, 200, 300, and 400 You may need to visit the automotive shop for the finer grits. You will have 600, 800, 1000 and 1500
You will need grinding, vibrating palm sander, (not orbital sander) and a small price you can wrap the wood in sand papirom.Dremel with some pointed cone grinding bits, and a drum sander bits will save you a lot of time, nothing more of 150 grit for this though. You'll also want a Dremel polishing wheel a bit.
Start sanding flat areas blower easy to hit with the palm sander, start with 80 grit and work as much as you can, getting hard to reach places are tough, you can wrap the sandpaper around a small wood pieces that are in those areas, or you can try Dremel. For this project, a Dremel tool skills, too min in one place, one second too long will cause a low point, I do not want to, so be very careful grinding with the tool.
Take your time grinding, after grinding of the whole blower to 80 grit should continue to 400 grit, it will take a long time, but the end product is only as good as this preparation.
So now you're finished sanding to 400 grit, and now you've probably figured out how to get into small areas blower, if you get creative, worse case you just balling up sandpaper on the end of your finger, sometimes you have to get that oil for the finished product.
is now time for wet sanding. I like to mix the water and dawn soap in a spray bottle and use as a liquid, not only to keep the sand paper with no waste, pure metal as you polish. You can continue to use the palm sander, Dremel, but is worthless for now. Wet sand 400, 600, 800 ...
You are probably tired by now, you can stop the wet grinding on 800, if you want, but for that little extra bling to continue to 1500 and 2000, then even if you want.
Now you're done sanding it was time to clean the blower, make sure nothing is on it, use acetone to clean the whole thing, you should be left with a smooth surface looks dull.
Ok here is what you need for polishing, and highly recommend bench grinder, the more amps the better. The key to polishing is able to power part of the polishing wheel, a wheel bearing speed continuous generation of heat and slowly moving through the sections, you can use most definitely a hand drill too.
If you use 1/3rd hp bench grinder 5 "wheels are good drills to use the 3" wheels, on my 2hp polishing machine uses an 8 "-10" kotači.Kotača you will have a spiral sewn cotton wheel can be viewed at Yahoo, you'll want atleast 3 because you can not mix different compounds over the wheel, 6 would be better off just incase you ruin one. You'll also want more Dremel polishing wheel, and ceramic materials are fast, so get them in sets of 3.
You will have three polishing compounds, and look like crayons, Emory, Tripoli, and White Rouge.
If you decide to use a hand drill Sears sells the Dremel polishing kit part, it comes with a 3 wheel and 4 compounds, it will also work.
Start polishing, put the wheel on the pad, bench grinder, drill, or get it spinning and then blend in the Emory Wheel. What happens is the friction wheel compound melts down and keeps the wheel. Slow even movements are important, building heat is ideal. Do as much blow as you can, for small hard to reach areas use the Dremel with a polishing wheel on it, the same process.
Delete all polished surfaces with acetone, is now using a new wheel, repeat the process with Tripoli compound.
Again, wipe down with acetone blowers and repeat the process again using the final mixture, white Rouge.
Clean blower like crazy, you can not leave any dust or a combination of the blower, wipe with acetone, using an air compressor to blow any of it.
Remove all recorded in the field of clean edges prep them for the new gasket maker, I picked up a can of high temperature bearing grease and added a bit more to the rear bearings.
You're ready to reassemble the blower, the line of the thread of copper gasket maker on the front of the case, slide the rotor of the blower in the case, do it slowly and carefully, not force, push it until it flush against the case.
next section just in front by pressing the gasket maker, and then click to check whether the muzzle coupler with a transmission, press it all together.
Now 18tq each bolt back into the muzzle, not zig-zag pattern to lock it down evenly.
Once again along a seal drug maker for some time. Now add a little oil, you can only 5W-30, this is what I use. Put everything back together and put on the car and you're done!