you need an air compressor....if memory serves the compressor needs to be 5SCFM minimum but check the Mityvac website. You attached the mityvac to each bleed nipple in turn and just open the nipple enough to start fluid being extracted into the Mityvac. It worked well for me, I'd tried other methods of purging the lines but this worked best.

Mityvac MV6835 Vacuum Brake Bleeding Kit

Mityvac MV6835 Vacuum Brake Bleeding Kit

Q: Does it bleed air from the ABS module as well

There are two types of ABS modules. An OPEN and CLOSED type system. An OPEN system will allow you to bleed the brake system and ABS module as normal since it's an OPEN sytem and the fluid flushes right through. A CLOSED system on the other hand requires a separate bleeding procedure in order to open up the internal solenoid valves to allow the brake fluid to flush through. This process is more involved and requires additional tooling or procedures to accomplish. See vehicle manufacturers service manual for instructions. Ok so now you want to know if you have an OPEN or CLOSED ABS module. Best way to find out is go to your vehicles manufacturer service manual and see what the final steps are after replacing a brake caliper, master cylinder, ABS module or any brake system component that you need to open up the system. At the end of any procedure I mentioned it will tell you to bleed the brake system. If no mention of a special procedure to bleed the ABS module separately then it's safe to say you have an OPEN system. Most newer vehicles today have an open system for ease of bleeding and flushing. I believe early ABS systems were a CLOSED system but I'm sure there are some late model vehicles that still have a CLOSED system. Ok, that's the short version. Hope this helps.

Q: What is the typical pressure used to pressurize the master cylinder? 10psi? 20psi?

We use 10psi . We have also used 20 but I personally found no difference. The unit does produce alot bubbles in the pressure line line so we use 10 psi to minimize the bubbles.

Q: does anyone know how to use the mva801 adapter? its just a cap with no fittings

It is used on dual cap master cylinders. You use that to cap off the other side of the mastercylinder. Factory mastercylidee caps do not hold, not are they meant to, pressure. Therefore if you just left the factory cap on the brake fluid would fill the reservoir and start leaking out

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Product ID: 304457706

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🔄360° swivel air inlet

🛑Auto shutoff valve

⏱️Bleeds up to 2 quarts/min

Frequently Bought Together

Mityvac MV6835 Pneumatic Brake and Clutch Bleeding Kit with Clamp-on Refill, Air Operated, 1.9 Quart Reservoir, 2qt Per Minute, Swivel Air Inlet, Automatic Shutoff Valve, Variable Thumb Throttle

Powerbuilt Brake Fluid Tester, LED Light Quality Indicators for Braking Systems, Test DOT 4 Water Content, Pocket Sized 647626

Description

🚗💨 Bleed like a pro—fast, clean, and unstoppable!

SPILL FREE SAFETY - 1.9-quart reservoir with automatic shutoff prevents overfilling and messy spills, keeping your workspace clean.
RAPID FLUID EXTRACTION - Bleeds brake and clutch fluid at an impressive 2 quarts per minute for lightning-fast maintenance.
ULTIMATE MANEUVERABILITY - 360-degree swivel air inlet offers unmatched flexibility, perfect for tight engine bays and hard-to-reach spots.
PRECISION PRESSURE CONTROL - Variable thumb throttle lets you dial in exact pressure for delicate or heavy-duty bleeding tasks.
CONTINUOUS OPERATION CLAMP ON BOTTLE - Clamp-on refill bottle ensures uninterrupted workflow—no more stopping to refill mid-job.

The Mityvac MV6835 Vacuum Brake Bleeding Kit is a professional-grade pneumatic tool designed for rapid and efficient brake and clutch fluid extraction. Featuring a 1.9-quart reservoir with automatic shutoff, a clamp-on refill bottle for continuous use, and a 360-degree swivel air inlet with variable pressure control, it delivers precision and convenience for automotive and motorcycle hydraulic maintenance. Lightweight and versatile, it’s engineered to streamline brake bleeding for mechanics and DIY enthusiasts alike.

Specifications

Manufacturer	Lincoln
Brand	Mityvac
Model	Vacuum Brake Bleed Kit, 11-1/2 in. L
Product Dimensions	32.26 x 25.4 x 22.56 cm; 2.18 kg
Item model number	MV6835
Exterior	Smooth
Manufacturer Part Number	MV6835
Material	HAWA
Colour	White, Black
Assembly Required	No
Special Features	automatic
Manufacturer	Lincoln
Country of Origin	USA
Item Weight	2 kg 180 g

Have a Question? See What Others Asked

Does it bleed air from the ABS module as well

What is the typical pressure used to pressurize the master cylinder? 10psi? 20psi?

how do you use it

does anyone know how to use the mva801 adapter? its just a cap with no fittings

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Mityvac MV6835 Vacuum Brake Bleeding Kit

Description

Specifications

Have a Question? See What Others Asked

Common Questions