It's time to mount up the front brake and clutch master cylinders to #10, and part of the process is replacing the unserviceable sight glasses.
After disassembly and cleaning, the old plastic windows are broken out and the mounting surface thoroughly prepped. Here the clear RTV is being applied....
After disassembly and cleaning, the old plastic windows are broken out and the mounting surface thoroughly prepped. Here the clear RTV is being applied....
Next, I use an old wooden popsicle stick with a bevelled end to scrape away excess RTV. The idea is to remove all unnecessary sealant to prevent it squeezing out into an unsightly glob when the glass is pressed into place....
Once the glass is firmly in place a suitably-sized socket is held under pressure with a rubber band for about 24 hours while the RTV cures. Later, clean away any smudges with mineral spirits or similar, and you're ready for installing on the bike....
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