SPArKy_Dave 8,869 Posted June 21, 2016 Not many people dive this deep, for whatever reason... (mechanics included) Over the last few years, I dug into the theory and operation of braking systems, any spare chance I had - chasing solutions to problems with warpage, shuddering, brake feel, responsiveness and more. So far, I've achieved some excellent results from investigating, testing and tuning. Especially with e-series and b-series. Here's an article, which explains another reason among others, to service calipers. http://www.ucx.com/documents/squareseal.pdf In the case of standard b-series and Territories - their brake issues can more often than not, be traced to the phenolic caliper pistons, made from a composite material, rather than steel. Phenolic pistons are porous, absorbing brake fluid over time, ultimately causing piston retraction issues. 3 dougie77, deankxf and bear351c reacted to this Share this post Link to post Share on other sites
PRO250 1,506 Posted June 22, 2016 Good brakes only slow you down mate 2 dougie77 and SirkWhyXF reacted to this Share this post Link to post Share on other sites
bear351c 10,270 Posted June 22, 2016 ........and on the rear calipers of an XF.??? Share this post Link to post Share on other sites
SPArKy_Dave 8,869 Posted June 22, 2016 ........the rear calipers of an XF.??? Where where?...... QUICK, kill them with fire! 1 bear351c reacted to this Share this post Link to post Share on other sites
