UK Karting - Notice Board (2-Stroke Karting) : Re: Advice on pushing OTK pistons back into calipe

Notice Board (2-Stroke Karting)

Re: Advice on pushing OTK pistons back into calipe
Posted by 'alanrr' on 06 Nov 2010 @ 23:56

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alanrrJoined: August 2001
Total Posts: 491
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Use the old pads as you withdraw them.

Once you have removed the pad retaing pin assembly, withdraw a pad until the rear edge is halfway across the piston face.

At this point, use the pad as a lever and push the tab with the hole in it that you are holding, towards the brake disk until the piston retracts.

What this does is use the curved edge of the pad to protect the magnet in the centre of the piston by only exerting pressure on the outer ring of the piston only.

Have a look at the pad to see how this is going tho work.

Repeat this with the other pad, pushing towards the brake disk again.

before you do all this, give the pistons a good application of brake cleaner to prevent any clag from being pulled down the sides of the pistons.

Before you put the new pads in, remove the piston caps and the rubber covers under them and check the level that the fluid has risen to.

Make sure you don't lose the plastic rings that are between the cap and rubber cap.

The reason for removing the caps is to prevent any air that was under the caps putting pressure on the fluid as it rises and causing the pistons to be gently pushed out again and causing brake drag.

This will also occur if there is too much fluid in the reservoirs after the pistons are retracted and the caps are replaced without removing a little of the fluid.

I see many of the ferrite magnets get broken by people using screwdrivers.

Post up if this doesn't make sense.

Guaranteed 80% b******s. :)

Message Thread:

Advice on pushing OTK pistons back into calipers by 'George' (06 Nov 2010 @ 10:50)

Re: Advice on pushing OTK pistons back into calipe by 'Tmoon' (06 Nov 2010 @ 11:15)

Re: Advice on pushing OTK pistons back into calipe by 'alanrr' << You are here!

Thanks for the advice - worked perfectly# by 'George' (07 Nov 2010 @ 22:18)

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