Hey all! New here, but just looking for some guidance on a cracked silicone caliber boot? Should I be concerned and fix it immediately? The guy who just did my brakes told me about it. But I’ve never even heard of it so I’ll googling :slight_smile: Thanks in advance!

[image] jessmac80: But I’ve never even heard of it so I’ll googling If you’re going to Google it, I suggest that you use the term “caliper boot”. If you Google “caliber”, you’re likely to wind up on a firearms website.

Nah, I bet it’s caliper guide pin boot.

Time to find out if it’s the caliper piston boot or the caliper guide pin boot. Call the mechanic and ask. I’d get either fixed, but I’d rush to get the piston boot fixed.

And the caliper boot seal isn’t made from silicone unless it is a specialty aftermarket item. Caliper boots are made from EPDM rubber, not silicone. Brake fluid melts silicone rubber.

I am surprised your brake guy did not immediately replace this…assuming he is talking about the brake caliper. The part is cheap, and he already has everything apart. The boot is there for a purpose, regardless of which boot we are talking about. Buy, yes, one is more critical than the other. It so…

Replace ASAP or you will need a new brake job soon.This boot prevents water and dirt to get on the piston surface.A sticking caliper piston will ruin your disc and pads in no time.

The mechanic should not have done a full brake job without telling you of potential consequences first. Just my opinion. If the caliper piston was somewhat difficult to retract during pad replacement this would mean the caliper is beginning to fail either due to entrance of debris or moisture into …

Most mechanics around here will just replace the caliper.

Cracked Caliber Boot?

Maintenance/Repairs

Tester February 23, 2021, 10:40pm 4

The caliper piston dust boot is torn.

It should be replaced.

Dirt will get behind the boot and could damage the piston seal.

Tester

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Cracked Caliber Boot?

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