Brake work - DIY??

I used a Kleen-Flo silicon synthetic brake lubircant. It is supposed to be water resistant, and good for rubber parts. I have used it for a long time with success in other vehicles. I have also used Permatex Syntetic lube too, but the Kleen Flo seems a bit better IMO.

I couldn't burp the lubricant out. The left side of the car the pins were starting to corrode and all dry (although the pads wore evenly still). As a result I got overzealous, and I put too much lub in the pin holes. The caliper pins on these cars have a rubber tip that seals in the hole like a hyperdermic needle, and so the lube would not squeeze past the pins edge. Since lube won't compress the pin could not bottom out in the bore. Removing the rubber seals (which I did to clean) makes no difference on this design. I had to remove the excess lube to restore proper operation, and once I did the pins moved like a hot knife through butter.

I read about lining up the groove caliper piston in the Toyota service manual. I saw a little "T" shaped grove on each piston. I lined up the "T" so it is oriented like a "T" right side up, is this what they are talking about?? That's what I did, and after the initial brake pump up, they had some signiifcant brake drag. I rechecked them today after we got home, and both have very little brake drag now.