DIY: Better way to bleed Brake and Clutch Oil

[talhawaleed]

I was planning a trip to northern Areas of Pakistan on my Corolla so decided to bleed Clutch and Brake Oil. I had been using this method for quiet sometime but fortunately I was able to take some pictures yesterday. Best thing about this bleeding method is that one person without any help can easily do it. You don?t need to press the brake or clutch oil and easily you can flush the entire braking system. Equipment I had been using was Air Conditioning suction machine which I bought it from a shop for around 7000 Rs and help me perform multiple tasks such as creating a good vacuum on car air conditioning, Home Air Conditioner and bleeding braking systems. So out of hobby I am able to do all these tasks. My servant helped in this work where tasks assigned to him was putting the car on jacks. Rest Pictures speaks for themselves.

1) Filter was made using two small pipes, a glass bottle, drilled holes on caps, sealing everything using magic glue.
2) Air Conditioning suction machine
3) Two pipes, one for attaching it with bleeding valve and another with the vacuum machine.
4) Bleeding valve was slightly open so that you may control the outflow of brake oil. Machine is strong so if fully opened then you won?t get enough time to top up the brake oil in master reserve.
5) Similar procedure was adopted on clutch bleeding valve, brake oil was almost clean but somehow clutch oil became very contaminated within 6 months time.

[Xulfiqar]

that pump is nice for old cars but wont work with ABS cars (the module has one way valves in it), the manual way is free of charge and one man is enough.

just place the bleed bottle and pipe higher than the bleeder screw - slowly pump away.

[talhawaleed]

that pump is nice for old cars but wont work with ABS cars (the module has one way valves in it), the manual way is free of charge and one man is enough.

just place the bleed bottle and pipe higher than the bleeder screw - slowly pump away.

 Yes, exactly I had been using this with Non-ABS cars. I have no idea about ABS cars as right now I don?t have one with ABS brakes. Once machine is turned on, then bleeding valve is opened later slightly then you can see brake oil rusting out from the pipe. Once I see a clear brake oil with no air bubbles in between then bleeding valve is closed with machine is still running and master cylinder is not allowed to run dry. Once bleeding valve is closed then after machine is stopped. So far it does the job perfectly ok but I don?t know if this induces some air in line and I think it does not. Anyway, next time I will try to keep the filter bottle higher, good idea.

[Xulfiqar]

with a vacuum system you have a very high chance of pulling air from the bleeder threads. I always choose a push bleed (also good for flush)

brake fluid licks moisture from air and overtime that can lower the boiling point by as much as 100F. Very dangerous. Its always a very good idea to flush every year regardless of where you live.

[talhawaleed]

with a vacuum system you have a very high chance of pulling air from the bleeder threads. I always choose a push bleed (also good for flush)

brake fluid licks moisture from air and overtime that can lower the boiling point by as much as 100F. Very dangerous. Its always a very good idea to flush every year regardless of where you live.

 Reverse Bleeding sounds like a difficult and time staking task, I guess this is simpler and fast. I am still not comfortable with reverse bleeding idea as I will need proper machine and someone to simultaneously take the dirty fluid out from master reserve bottle. Only disadvantage to this I see is that in-order to have a piece of mind, I always end up flushing the entire system and empty 2 to 3 bottles.

[Xulfiqar]

no not reverse bleeding.

normal regular bleeding - from MC to slaves, easy, cheap and ensures no problems if you take some precautions.

when I flush the brake fluid, I usually suck out all old fluid from the reservoir and if possible wipe it with rags soaked in fresh brake fluid. Once its clean - then I proceed to flush it out starting from the farthest wheel - takes about half a jam bottle to get fresh fluid at that wheel.

I also like to keep a little piece of pipe filled with fresh brake fluid to compare to the bleed - just to make sure Im seeing it correct. Sometimes the tone hue in the pipe can make it look different.

The flex pipes to the calipers are wear items too and require regular replacement - about every 6 to 8 years is accepted, 5 is also sometimes recommended if you live in rust. Nearly 90% of cars in Pakistan are running ancient items or even choose to install junk scrapyard pipes (jenyan disease). They really compromise the efficiency.

[Bhutto]

@ Xulfiqar

Sir can u please clear your inbox . Wanted to ask something .

[talhawaleed]

no not reverse bleeding. normal regular bleeding - from MC to slaves, easy, cheap and ensures no problems if you take some precautions. when I flush the brake fluid, I usually suck out all old fluid from the reservoir and if possible wipe it with rags soaked in fresh brake fluid. Once its clean - then I proceed to flush it out starting from the farthest wheel - takes about half a jam bottle to get fresh fluid at that wheel. I also like to keep a little piece of pipe filled with fresh brake fluid to compare to the bleed - just to make sure Im seeing it correct. Sometimes the tone hue in the pipe can make it look different. The flex pipes to the calipers are wear items too and require regular replacement - about every 6 to 8 years is accepted, 5 is also sometimes recommended if you live in rust. Nearly 90% of cars in Pakistan are running ancient items or even choose to install junk scrapyard pipes (jenyan disease). They really compromise the efficiency.

Yes, Normal bleeding works well but having a suction machine gave me the liberty to experiment. I have never replaced the flex pipes but hopefully do so after purchasing new pieces from Toyota Motors. Honestly I did not knew about the pipes that?s why never explore the idea of buying a new one. Thanks

[sterlinghatton]

writemyessay said:

with a vacuum system you have a very high chance
of pulling air from the bleeder threads. I always choose a push bleed
(also good for flush)

brake fluid licks moisture from air and overtime that can lower the
boiling point by as much as 100F. Very dangerous. Its always a very good
idea to flush every year regardless of where you live.

Is the system equipped with traction control and anti-lock brakes?