Dry Bleed System

An affordable Dry Bleed System has been designed for use with any AP Racing caliper suitable for 'O' Ring & Non 'O' Ring bleed screws.
The male dry bleed valve is fitted in place of the bleed screw, and once fitted there should be no need to loosen or remove the coupling unless it is being replaced.
The male coupling is basically a valve that is opened when the female bleed valve coupling is connected to it. The female coupling is connected to a bleed pipe and container allowing brake fluid to be pushed through the system to bleed it. Another advantage of the dry bleed system is that it removes the possibility of introducing air into the system via bleed screws when vacuum bleeding.
The dry bleed caliper fittings are available with M10 x 1.0mm or 3/8" UNF threads.
When fitting the dry bleed valve in to the caliper a small amount of Loctite 270 should be applied to the thread and the coupling tightened to a torque of 13Nm.
Seal kits are available for the male dry bleed valves. See table below for part numbers.
Important Note: Fitting the dry bleed system may effect the radial profile of the caliper. It is therefore essential that the clearance between the caliper assembly and wheel is checked carefully prior to running the car.

Dry Bleed Valves	Thread	Material	Weight	Repair Kit	Replaced Bleedscrew
CP6300-21	M10 x 1.0mm	Stainless Steel	16g	CP6300-21RK	CP4970-125 CP4970-140 CP4970-136
CP6300-27	3/8" UNF	Stainless Steel	16g	CP6300-30RK	CP5820-115 CP6297-112
CP6300-28 (Non O-Ring Version)	M10 x 1.0	Stainless Steel	17g	CP6300-28RK	3486-268 CP3720-173 CP3720-183 CP3720-107 CP3894-138
CP6300-30	3/8" UNF	Titanium	8g	CP6300-30RK	CP5820-115 CP6297-112
CP6300-37 (Non O-Ring Version)	3/8" UNF	Stainless Steel	17g	CP6300-28RK	3846-227 CP3720-182
Downloads CP6300-13 Customer Drawing
Bleed Coupling
CP6300-31	Threaded bleed coupling Note: This coupling is only designed for bleeding the calipers and not for use at high pressure.
CP6300-32	Bleed coupling with non threaded outlet and one way valve fitted Note: This coupling is only designed for bleeding the calipers and not for use at high pressure.
CP6300-36	Short 150° Bleed coupling with non threaded outlet and one way valve fitted Note: This coupling is only designed for bleeding the calipers and not for use at high pressure.

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