Post Carb Clinic Additions… The final assembly was done under Hogfiddle’s watchful eye. I figure I should keep all of this together as this is the final piece of front brake rebuild for the XJ700n system. Like the front calipers, I purchased a used MC from eBay for the rebuild. Here you have the replacement unit with it’s guts out. There was a dry rotted dust boot and a circlip that you’ll have to muscle out… more on what that looks like (on the re install) down the thread. Nice and crusty! After removal of the insides, I did my best to really buff the bore as much as possible, picked out the majority of the fluid level viewing window, taped up the openings and bead blasted it in a cabinet. After the blasting, I got in there and picked out the remainder of the window. The yellowish clear ring was the window edge, then there was the metal plate with the slots and the o-ring that holds it all together. You have to clean the groove really well before install of the new window. Good time to do it now… use acetone.. there was “gummy” bits and window residue in there… Next another wipe down with acetone… I think it’s always a good idea to use gloves. What is the sense in having your skin come in contact with chemicals anyway? Besides, the gloves keep you from transferring your oils back on to your prepped MC just prior to paint. After Paint! The screws look bad… but we get new ones anyway! Now for the good stuff… A complete MC rebuild kit from Len @ XJ4Ever! Get one. You won’t regret it. You’ll have to cut down the tip of the applicator on the RTV tube. I nipped off the very tippy end of it first. Then I whittled it down to a point. You want the thinnest “squeeze” of RTV possible. You’re about to attempt something difficult! You’ll want to set yourself for as much accuracy as possible. That sight window groove is small. The RTV is sticky and hard to work with. You’re also working with a tiny circle glass window. You want to do your best to get it right the first time. If you get the RTV where it shouldn’t be… You’ll have to clean things up and start over. You want to keep your glass clear… and you just painted that shiny new MC… remember? Now put the RTV in… Not too much… but not too little either. That bead of RTV has an important job to do. Once you put your RTV in, make sure your fingers are clean of any RTV (or perspiration, anxiety, cheese doodle dust, etc.) and send that window home. After the glass was set, I put a second application of RTV on the outside. It’s REALLY hard to get that stuff smooth when you’re working in such a small area and in such small quantities. It’s a bit “lumpy” for my liking, but it is strong. Once done… Leave it a day or so to really set up permanently. Now for the guts… Take your new spring and plunger gasket… assemble and slather on some of the included assembly grease. Slide it into the bore. Set it in good. Your piston will go in on top of that. Don't forget to grease that too.