Brakes Off Car, Wheel Cylinder

Wheel Cylinder

Wheel Cylinder:

The wheel cylinder is made up of nine parts, 

1 x Cylinder - (Bottom Right Of Pic), 

2 x Piston's - with 2 x Cup seal's that sit on the inner face of piston's - (Left Hand Side Of Pic),

1 x Spring - This sit's in between the two pistons - (Middle Of Pic),

2 x Dust/ Boot seal's - These sit on the end of the cylinder, These also hold in the piston's - (Top Right Of Pic).

 Dismantling the wheel cylinder 

To remove the end boot, gently use a flat-head by sliding up under the boot. Being careful not to ripe the boot.

Once both boots are off, Next is to tap out the two piston's - once again being careful the spring doesn't go flying out.

The pic on the right is the wheel cylinder fully dismantled & laid out the way it fits together.

Honing out the cylinder

Inspect inside the cylinder for any corrosion or even rust, most likely it will need to be Honed.

To the right is a video on how to hone out the inside of the cylinder.

There are two types of honing bits.

One with two stone's & one with three stone's

Pic on right - Is from our work books.
Showing the two different types of honing tools.

 On the right is of the cylinder after it has been honed.



On the left is what the cylinder looked like before it was honed.







After everything has been replaced that needed to be replaced or in our case it needed to replaced with a new one.