11 replies to this topic

[l2eeFer13]

Hey guys so today im going to finally install my 4pot brakes onto my Suby. I am just doing the fronts

 

I am aware of the whole bleeding process but im a bit confused with what to do when changing callipers. Does the same bleeding process apply when changing brakes that have no brake fluid in them already?

So i can just swap the brakes out then start the bleeding process as usual or do i manually have to fill new 4pots with brake fluid before install?

 

Also in what order do i do the brake bleeding process on my car? Its JDM as im in New Zealand

[Matt]

Hi,
Passenger front
Driver rear
Driver front
Passenger rear
Enjoy.

Josh,

This sequence is primarily for ABS cars right?

Is there any benifit to doing it this was on say my RS with no ABS standard?

[l2eeFer13]

Thanks BOSSKING. Yes i actually just read about the bleed nipple being at the top before.

 

Also another thing i read somewhere was to use Dot 4 brake fluid but the brake fluid resivar has use Dot 3 stamped on it. Is dot3 a must or will dot4 be fine?

[CRUISN]

Sequence is correct if your bleeding the whole system. Not needed if your just swapping front calipers and bleeding these only.

Ive always run dot 4 in all my Subaru's. Dot 4 is fine as its compatible to run in dot 3 systems.

[Beckers]

The dot 4 I used was el cheapo service station spec.... I spose you get what you pay for also.

 

Stop being a jew rat Boss, next thing you be used Safeway oil !!

[CRUISN]

Everything has a shelf life. Worst for brake fluid is a non sealed container and moisture getting into it.

Ive always used what is now the Castrol React performance dot 4. For my last two clutches also. No dramas.

[cowie165]

You don't need to fill the calipers, just start the bleeding. Get a buddy to help you - I've found those "one-man" bleeders are terrible. Don't push the pedal all the way to the floor, and don't let the reservoir run too low.

 

I used Super DOT4 last time. Worked a treat.

 

Hey your pads will probably need to be bedded too. I usually do something like moderate brake 50->20kmh x 5 then hard brake 70->30 x 5. Then drive around for 5-10mins while things cool down. Never had squealy brakes. Apologies if you've got all this already.

 

Mark

[Blackduck30]

The only difference between DOT 3 and 4 is the boiling point, 4 has a higher boiling point.

 

Also keep in mind that there are two boiling points

 

The first is once you fully bleed and flush the whole system and is called a dry boiling point as the fluid has no moisture in it.

The second is a wet boiling point and is once the fluid is older and has absorbed moisture and has a lower boiling point than the dry.