cora_west5•9d agoProlific Poster

Found a weird trick with brake fluid and rusted bolts

I was working on a 2005 Ford Focus last Tuesday and couldn't get a caliper bracket bolt to budge after soaking it in PB Blaster for 20 minutes. Out of frustration I dripped some DOT 4 brake fluid on it from a nearby bottle and let it sit for about 5 minutes, and the thing came loose with just a breaker bar. Has anyone else had that work or was I just lucky that time?

3 comments

3 Comments

bell.jessica9d ago

Had a buddy try this on a seized suspension bolt on his 98 Civic. He was about to give up and torch it, then remembered he had some old DOT 3 in the trunk. Dripped it on, waited maybe 10 minutes while he grabbed a beer, and the bolt cracked loose with just a ratchet. Could be the fluid just works better at creeping in there than PB does sometimes.

samreed8d ago

So basically brake fluid is just really angry water.

-1

emma_lee228d ago

That stuff gets into places nothing else can, like that one friend who always finds a way to crash your couch.