[Honda hybrid442]

I notice a major drag on my left front rotor and checked the brake fluid and found the gasket on top of the cap enlarged. Thinking maybe contamination or heat. Heres a picture of a good cap and how i found mine . Thanks Sean for the picture and help .

 

[Honda hybrid442]

This is the good one.

 

[Honda hybrid442]

You think that would only lock up one caliper.

 

[Honda hybrid442]

I have a caliper on the way and planning to check the function tommorrow and flush some new fluid though that front caliper.

 

[Honda hybrid442]

Caliper piston moved in freely. Greesed the slides,pump some new dot 3 fluid though all was good for 2 days than it started sticking again. Going to swap out caliper today. Guess just cause piston gos in doesnt mean its still good. These are not the type to move back in after releasing brake. What else would hold up the drag. Weird !

 

[Honda hybrid442]

The grease only gos on the slides and shouldnt recieve much heat sliding back forth. Thinking something else causing the sticking. Am on way to the base to swap out this caliper i got from member. But more i think it cant be the caliper if piston moving out. Leaning towards slides ill try high temp today on slides.

 

[Honda hybrid442]

Lol..funny willie. I just put high temp brake grease on slides and flush a bunch fluid out and replaced the used caliper . Think your right about moisture and i suspect thats what caused the cap seal to go bad. The line showed good flow when unhooked from caliper but your right about possible failure there.

 

[Honda hybrid442]

Thank you. Very good info. Ill give it a try next time if it keeps sticking . Am going to rebuild the caliper i took off today as soon as the new seals come in . Stay tuned for update on condition of those pistons. Can you recall where u bought your pistons and seals.

 

[Honda hybrid442]

Have new gaskets on way from rock auto. Cleaned up piston. It was in bad shape. But came out nice with a sander belt and elbow grease. Gaskets look fine but cheap insurance both sides shipped for 11 bucks.

 

[Honda hybrid442]

Notice the little slits in the rubber gasket. Not sure why but i think its factory.

 

[Honda hybrid442]

Am starting to think it mite be a line. I change out the caliper and it work for couple days.Just out of the blue it will drag the car down and I can feel the heat coming off the rotor. I pulled the caliper off last nite and again the piston pushed in fine with a screwdriver before I removed it.Check the pads again, cleaned the pad shims and didn't see any issues. Rim spun fine on hub and didn't feel any bind on the axle. Wait on new pads and pin bushing and I have new caliper seals going on next.

 

[Honda hybrid442]

Yes ive read that but havent really seen that on insights so am leaning on maybe bad seals from contaminated fluid i really dont know or sticky piston on the used caliper .i have the cleaned up piston from the first caliper am going swap in.

 

[Honda hybrid442]

What you think the best lube to use. I was thinking just clean brake fluid on piston and seals.