BadTrainDriver Posted October 20, 2011 Report Share Posted October 20, 2011 Just asking to see if anyone local has a set-up that would be willing to help me with a small project. I don't expect the work done for free...hell, I'll even do it myself if you supervise/drink the beer I bring you.I bought a set of 2 piston Subaru WRX brake calipers to install on my Subaru L that only has single piston calipers. More importantly, the brake rotor size goes from 10.2" to 11.4". Eventually, I'll be converting my rear drums to WRX disks, changing the master cylinder and proportioning valve...and will basically have the complete WRX braking system.What I need help with is media/sand blasting the front calipers and caliper hangers/brackets. The brackets will be a piece of cake, just blast the whole thing. The calipers will be a little(but not much) more difficult. I already have the seals and pistons removed, and I was going to pack the bores with paper towels and tape them closed so as to not blast inside them. These items are not painted or powder coated, they're just rusted/dirty. My end plan is to paint them black with G2 caliper paint.If anyone can help, I'd be most appreciative! Quote Link to comment Share on other sites More sharing options...
jester3681 Posted October 21, 2011 Report Share Posted October 21, 2011 How soon do you need this done? I was planning on getting a setup to blast some parts on the bike, just not quite yet. Maybe in a month or two? Quote Link to comment Share on other sites More sharing options...
BadTrainDriver Posted October 21, 2011 Author Report Share Posted October 21, 2011 I believe Hoblick its going to help me, but thanks for the offer.I don't need it done quick, but I do need it done quicker than that. Quote Link to comment Share on other sites More sharing options...
Pokey Posted October 21, 2011 Report Share Posted October 21, 2011 I believe Hoblick its going to help me, but thanks for the offer.I don't need it done quick, but I do need it done quicker than that.Fred couldnt help you? Quote Link to comment Share on other sites More sharing options...
BadTrainDriver Posted October 21, 2011 Author Report Share Posted October 21, 2011 He could, but I'd kinda like to do it myself or watch someone.The carriers will be easy, but I've got to be careful with the calipers so as to not blast in the piston bores. I'm going to pack the bores, and tape them as best as I can. I'm sure Fred could do it...I'd just feel better doing it myself/watching it done. That's all. Quote Link to comment Share on other sites More sharing options...
Helmutt Posted October 22, 2011 Report Share Posted October 22, 2011 If you have a small air compressor check this kit out - I have just a media gun with a little hopper on top, and it did a bike frame pretty well using just a 1 gallon pancake compressor.....simple to do, took me 10 minutes in the driveway....and fairly inexpensive - plus you'd have it next time you're in need http://www.harborfreight.com/portable-abrasive-blaster-kit-37025.html Quote Link to comment Share on other sites More sharing options...
Hoblick Posted October 25, 2011 Report Share Posted October 25, 2011 dude sorry i havent gotten back to ya.i have been getting my ass handed to me by work, my bike situation im trying to deal with, and my project in the garage.if you had an air compressor id tell ya to just come get the sand blaster.but my work schedule is a bitch to try to help people out through the week Quote Link to comment Share on other sites More sharing options...
Gixxus Christ! Posted November 17, 2011 Report Share Posted November 17, 2011 Bring em to me, ill do em at work. Pm if interested. Quote Link to comment Share on other sites More sharing options...
jagr Posted November 17, 2011 Report Share Posted November 17, 2011 BadTrain. Just got to pokeys house. Set your parts between the two of you and it should be a done deal. I mean everytime that guy opens his mouth he blasts you. Those brake parts don't stand a chance! Quote Link to comment Share on other sites More sharing options...
jporter12 Posted November 17, 2011 Report Share Posted November 17, 2011 He could, but I'd kinda like to do it myself or watch someone.The carriers will be easy, but I've got to be careful with the calipers so as to not blast in the piston bores. I'm going to pack the bores, and tape them as best as I can. I'm sure Fred could do it...I'd just feel better doing it myself/watching it done. That's all.The bores aren't super critical. The pistons are what slide and need to be sealed against. I'm not saying blast away at the bores, but just don't lose sleep worrying how to clover them. DO make sure you get all of the blast media out of them. Soak them in water, flush with brake cleaner, do all you can to make sure the sand is out. If it floats around and gets between the pistons and seals, it could leak. Quote Link to comment Share on other sites More sharing options...
Gixxus Christ! Posted November 17, 2011 Report Share Posted November 17, 2011 The inside diameter of the bores is every bit as critical as the outside diameter of the pistons. There should be a rubber seal in there somewhere, you want to remove that before blasting. Before you reply to this thread considered for a moment that I repair and overhaul aircraft brakes for a living and just might know what I'm talking about. Plastic blasting media probably isn't going remove enough material or deform the bores enough to cause leakage, but that bore also needs to be smooth and blasting will rough up the polish on it. Quote Link to comment Share on other sites More sharing options...
Pokey Posted November 17, 2011 Report Share Posted November 17, 2011 BadTrain. Just got to pokeys house. Set your parts between the two of you and it should be a done deal. I mean everytime that guy opens his mouth he blasts you. Those brake parts don't stand a chance! What you talkin about.....Matt is my boy!!!!! 1 Quote Link to comment Share on other sites More sharing options...
BadTrainDriver Posted November 17, 2011 Author Report Share Posted November 17, 2011 Thanks guys...they are already done, and brand new Subaru seal kits were used to put them back together. Thanks for the offers to help, and a big thanks to Pokey's friend Fred that let me do them at his machine shop! Quote Link to comment Share on other sites More sharing options...
jporter12 Posted November 18, 2011 Report Share Posted November 18, 2011 The inside diameter of the bores is every bit as critical as the outside diameter of the pistons. There should be a rubber seal in there somewhere, you want to remove that before blasting. Before you reply to this thread considered for a moment that I repair and overhaul aircraft brakes for a living and just might know what I'm talking about. Plastic blasting media probably isn't going remove enough material or deform the bores enough to cause leakage, but that bore also needs to be smooth and blasting will rough up the polish on it.Aircraft brakes are on a totally different level than car brakes! I work on cars for a living, and after seeing the crap that we get as new or remanufactured, I think a little bit of blasting in the bores would be a lot better than most of what is sold to be put on cars as replacement parts. Quote Link to comment Share on other sites More sharing options...
Helmutt Posted November 19, 2011 Report Share Posted November 19, 2011 Aircraft brakes are on a totally different level than car brakes! I work on cars for a living, and after seeing the crap that we get as new or remanufactured, I think a little bit of blasting in the bores would be a lot better than most of what is sold to be put on cars as replacement parts.I 2nd that! I work wth class 8 trucks, and their parts quality is expectantly between aircraft quality and car parts quality........weird how you actually get what you pay for when it comes to quality:dunno: Quote Link to comment Share on other sites More sharing options...
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