Originally Posted by JHZR2
Originally Posted by Tundragod
FYI. Two weekends ago, I switched my all season tires to Winter tires so I decided to check the caliper pins since the wheels were off anyway. 1 pin at bottom rear right was rusty frozen (had to pound out). Bottom rear left was rusty but not frozen, yet. The rubber boots were fine. The rest of the pins(6) needed re-lube as well and some had small rust spots. I lubed all pins last year, 09/08/2018. What this telling me is that, at a minimum, check caliper pins and lube it every year. Salt water will get in there. I will be checking and lubing them when Winter wheels coming off in the Spring.
Good reminder for folks to check. I know I never do...
Honestly it may sound stupid, but we're here to learn... I'm not sure I know how... each caliper is different. Does one actually unscrew or drive out the pins, or just pull back boots when they're present? Ive repaired, replaced and lubed these things when doing brake jobs, but this is slightly different.
They unscrew, they only have 5 to 7 turns of threads. The boots are not a real tight fit, they are a bellows type with accordion middle section and slide pin diameter ends. The boots do not need to be completely packed with "Silicone" grease. If you don't use the proper slide pin lube, like Silicone based Sil glyde, the pins may swell and cause the calipers to freeze up and also swell the boots making them leak and seizing the caliper slide pins. One lube for pins, Silicone based, one lube for pads, I use Permatex ceramic, CRC is good too. I have to do my pads every year on my winter vehicles, but not my pins.