10 replies to this topic

[59 Speed]

Hi guys,

I've bled the brakes on my 1992 (servo) Mini and the brakes are a little spongy.

In the past I've always bled the brakes NSR, OSR, NSF, OSF (furthest bleeding point away moving around to the nearest bleeding point) but after looking in my Haynes manual it says it should be NSF, OSF, NSR, OSR for my type 4 tandem master cylinder (servo).

Does anyone know which one is right before I waste my brake fluid?

Cheers,
Ian

[087dave]

I always do (from standing behind the car facing forward) left rear, right rear, front passenger , drivers side..

 

Do you have the calipers on the correct way round?

[59 Speed]

I always do (from standing behind the car facing forward) left rear, right rear, front passenger , drivers side..
 
Do you have the calipers on the correct way round?

Cheers, yes the calipers are the right way up.

My brother says it's probably a bit of air still in the system and questioned the braking sequence, so I double checked against the Haynes manual and it says NSF, OSF, NSR, OSR which is complete different from the way I'm used to (your way).

[cal844]

Do it your way, silly question time.... Are the rears adjusted correctly??

[One step at a time]

[quote name="087dave" post="3201527" timestamp="1421012950"]

I always do (from standing behind the car facing forward) left rear, right rear, front passenger , drivers side..
 This is the way I've always bleed mine. The NSR is the longest pipe in the system, then OSR, NSF and lastly OSF.
Are you pumping the peddle or useing an easy bleed pressured type?

[59 Speed]

Do it your way, silly question time.... Are the rears adjusted correctly??

Not adjusted as of yet

I always do (from standing behind the car facing forward) left rear, right rear, front passenger , drivers side..
 This is the way I've always bleed mine. The NSR is the longest pipe in the system, then OSR, NSF and lastly OSF.
Are you pumping the peddle or useing an easy bleed pressured type?

That's what I always thought - longest pipe first and so on until you get to the shortest / nearest.
Easy bleed.

Cheers,
Ian

[spiguy]

Fair point Cal, you need to adjust the rears properly before assessing the brakes for sponginess. If the rears need to come out too far then that can create the same impression. I used to on occasion need to crack open the pipe unions at the master cylinder and bleed them (same approach - pressure on pedal, crack pipe until fluid coming out free of air, close pipe). Just thought I'd mention it.Seemed like an air bubble could get trapped in the body of the master cylinder.

[cal844]

Yeah also check the PDWA valve on the bulkhead too, air can get trapped here too

[A-Cell]

For RHD version of your car, Haynes is the correct sequence. Same as Rover Workshop manual.
Front first because of the biggest displacement, longest line at front (LH), then RH front. Followed by longest line to rear (LH)

[59 Speed]

Thanks guys,

Did it like A-Cell and the Haynes manual explains above, pedal much more solid and consistent!

Cheers,
Ian

Edited by Smackfiend, 13 January 2015 - 10:28 PM.

[A-Cell]

Glad you got it sorted.