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The device for spreading the caliper pistons without disassembling the caliper itself


In the 90s, I had a masterpiece of the domestic automobile industry IZH-412

Possessing a number of diseases, one of them especially got it - it's a support
It was not a lot to miss the wear of the brake linings, and hello arrived ...
The caliper piston came out so that it was very difficult to squeeze it into place.


Montage - you deform the piston ...
I had to make device to move the caliper pistons apart without disassembling the caliper itself.

The principle of operation of the device is simple.
Central shaft

It has threads on different sides, on the one hand left and right.
Cheeks also have one right thread and another left


When the screw rotates over the holes, the cheeks move either towards each other

Either apart

Connect the cheeks together

We insert between the piston and the block

twist the shaft, the piston snaps into place. Of course, you need to change such a miracle, but as practice has shown, there was no need to replace the caliper, and you can’t buy spare parts before ...

Now this little device no, no, yes, it will serve as a place to breed something. And compression does not work badly. So, what to throw away early!
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2 commentary
They then stick to it, if the piston is aluminum, and the cylinder is cast iron, this is an Achtung. On UAZ the same sore. The pads got worn out, the pistons got out, and then they got stuck. It was very difficult to remove the brake drum.
piston extension
-for compression probably? Like it was pressed without problems with a screwdriver. And the very problem was sticking
between the piston and the block
and then nothing complicated

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