Separating a stuck brake piston and rebuilding the cylinders

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C.Costine
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by C.Costine »

fj20spl311 wrote: Mon Jul 27, 2020 1:14 pm My main reason for the protection from heat is the Stainless Steel Sleeve. I don't know if its pressed into place or some other method of locking it into place that the heat might damage.

From my experience sleeves are pressed into position. Thin ones as in brake cylinder liners would take a very close fitting mandrel to hold it in position as it goes in with a ridge to do the actual pushing. Cylinder sleeves in a motor are usually very robust and very hard to hurt. I have always made my own pullers and pushers for putting into my old tractor engines. I have a set of bushing drivers but they are strictly for heavier thickness sleeves.
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Curtis
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Curtis »

I got curious about how Karp does it. "All of our sleeves are installed with a special sealer/retainer and then press slip fit into the cylinder."

I would have thought it would be an interference fit. Heat would probably not be good in this case.

This reminded me I need to disassemble my calipers and get the dot 3 out of them since I will switch to dot 5. I'm hoping to get my new Zeus calipers soon instead. The virus has really messed things up, tired of people dying.
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Linda
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Linda »

The guy at the hardware store thought an EasyOut would work. The bleeder is hollow, so maybe?
All this in case you don’t have a trusted machine shop, like I used.
I hope the other side is easier. I plan to open the cylinders to check and clean.
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Curtis »

Linda wrote: Tue Jul 28, 2020 11:19 am The guy at the hardware store thought an EasyOut would work. The bleeder is hollow, so maybe?
All this in case you don’t have a trusted machine shop, like I used.
I hope the other side is easier. I plan to open the cylinders to check and clean.
Linda
And you will get stainless Speed Bleeders? Hint, hint.
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Linda
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Linda »

Which bleeders are those, I am interested.
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Curtis »

SB3824-SS 3/8 x 24

http://www.speedbleeder.com/
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Linda »

I already have the Dorman bleeders, so I will have to consider this down the road.
Hoping this caliper, cylinders and pads looks correct so that I can finish this wheel.
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Curtis
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Curtis »

Well did you follow the recently posted info on the directional arrows? Now I have to take my brakes apart to check them.
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by Linda »

Oh that’s right. Not only did I forget about Ray’s post, I don’t understand it either. :roll:
I will check for markings on the pads
viewtopic.php?p=309274#p309274

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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by drivercar3 »

I've read elsewhere that removing a bent pin is ok to do - is this true?
IMG_0646.jpg
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Re: Separating a stuck brake piston and rebuilding the cylinders

Post by DAC21 »

drivercar3 wrote: Thu Aug 10, 2023 5:17 pm I've read elsewhere that removing a bent pin is ok to do - is this true? IMG_0646.jpg
Following.... as I didn't know they could be replaced let alone new pins found.
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