Rear brake caliper problems
#1
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Rear brake caliper problems
Anyone else have rear calipers freeze up every few months? I keep replacing them with the same shitty rebuilds from a local parts company my work deals with, but they are under warranty so I'm stuck in a bit of a rut... But come on I mean i've been throuh 5 in the last year... Why does this keep happening?!?! What is the next step as far as an upgrade? Once they won't cover them under warranty anymore i'm gonna have to figure something else out.
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Yeah I have been using Anti-Seize, and the caliper pins were free when I took the caliper off last night. When I attempted to press the piston back in with the caliper tool that I had, I'm not sure the hulk would have even been able to press that bitch back in.
I just priced out 99 calipers / brackets and they are only $55/each from Planet Miata. I just got another warranty caliper and I am going to throw it on and then do the swap at the end of the summer. I am going to have to get new rotors, pads, and also do the rear stainless lines at the same time so it's going to run me around $350 for everything after shipping. No $$ for that at the moment so I hope this caliper I just got makes it through the summer haha. Oh yeah and I do bleed the lines every time using a Mighty-Vac bleeder.
Mine too were doing this. Once I replaced with said auto parts store calipers mine have been fine.
I hope Im not being too obvious here, but make sure you do a thorough brake bleed each time. I ran into this problem b/c I was too lazy to do the proper procedure of replacing calipers.
I hope Im not being too obvious here, but make sure you do a thorough brake bleed each time. I ran into this problem b/c I was too lazy to do the proper procedure of replacing calipers.
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That being said, I still believe the problem lies in the caliper because the pins were sliding perfectly fine when I took the caliper out. Unless my rubber lines are breaking apart from the inside and causing an obstruction in the fluid flow.
Also, the rubber boots for the sliders got over-heated and fell apart when I ripped the caliper off last night.
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I had this problem years ago on a Celica. It's because of water in the fluid.
Drain, and flush it with cheap auto parts store brand fluid. Put at least a quart through the system. When everything is running clear, bleed as normal.
Drain, and flush it with cheap auto parts store brand fluid. Put at least a quart through the system. When everything is running clear, bleed as normal.
#13
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When I bought the car last year I did a flush on the entire brake system. I used a Mighty-Vac and ran tons of fluid through. I also did a complete fluid swap when I did the 4 wheel brake job in January. Fluid from my shop is free, so I have ran so much fluid through these lines lol. Next step might be stainless lines just to eliminate the possibility of the rubber lines breaking down from the inside and causing problems in the calipers.
#14
1. The rear calipers have a screw mechanism to compress just like Leafy said. Get a manual for your car. There's a FSM in a sticky on here.
2. Assuming undamaged calipers, the rears on the Miata are prone to seizing due to corrosion. Your location is one of the worst imaginable for this issue. You should be pulling your rear calipers and re-lubing the slider pins (I recommend disc brake grease, BTW) about every 6 months. Also, check the rubber boots and make sure they are in good shape. Replace as needed. Boot kits are readily available and cheap.
3. The fronts on the Miata generally don't freeze up. So, brake fluid condition + lube + boot condition, just like others have mentioned.
In other words, basic maintenance.
You might also consider getting out of Jersey.
2. Assuming undamaged calipers, the rears on the Miata are prone to seizing due to corrosion. Your location is one of the worst imaginable for this issue. You should be pulling your rear calipers and re-lubing the slider pins (I recommend disc brake grease, BTW) about every 6 months. Also, check the rubber boots and make sure they are in good shape. Replace as needed. Boot kits are readily available and cheap.
3. The fronts on the Miata generally don't freeze up. So, brake fluid condition + lube + boot condition, just like others have mentioned.
In other words, basic maintenance.
You might also consider getting out of Jersey.
#16
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1. The rear calipers have a screw mechanism to compress just like Leafy said. Get a manual for your car. There's a FSM in a sticky on here.
2. Assuming undamaged calipers, the rears on the Miata are prone to seizing due to corrosion. Your location is one of the worst imaginable for this issue. You should be pulling your rear calipers and re-lubing the slider pins (I recommend disc brake grease, BTW) about every 6 months. Also, check the rubber boots and make sure they are in good shape. Replace as needed. Boot kits are readily available and cheap.
3. The fronts on the Miata generally don't freeze up. So, brake fluid condition + lube + boot condition, just like others have mentioned.
In other words, basic maintenance.
You might also consider getting out of Jersey.
2. Assuming undamaged calipers, the rears on the Miata are prone to seizing due to corrosion. Your location is one of the worst imaginable for this issue. You should be pulling your rear calipers and re-lubing the slider pins (I recommend disc brake grease, BTW) about every 6 months. Also, check the rubber boots and make sure they are in good shape. Replace as needed. Boot kits are readily available and cheap.
3. The fronts on the Miata generally don't freeze up. So, brake fluid condition + lube + boot condition, just like others have mentioned.
In other words, basic maintenance.
You might also consider getting out of Jersey.
The brake fluid condition when I bought the car last summer was pretty bad. It might have been the original fluid, not sure. I bought the car with 61,000 miles, so it's definitely a possibility. I am going to buy a nice big tube of good quality disc brake grease... I have been using Anti-Seize but I guess that might not be working very well on these calipers.
Unfortunately, the wife and I just bought a brand new townhouse, so we will likely be in Jersey for a while Lol!
Yup piston froze. Tried to push it back in with an old brake pad and it's not budging.
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