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Brake Fluid
Going to order a Motive power bleeder. Is one liter of brake fluid enough to do a full flush, or do I need two?
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I used a full two liters and that includes flushing the clutch at the same time.
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Mine is an auto, so no clutch, but it sounds like I should get 2 just in case. Don't mind the extra $$, but with alternating colors, it will be a while before I need blue again!
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i needed about 1.25 liters when I flushed my brakes the last time w/o flushing the clutch
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Also depends how bad/old the fluid is. When I flushed mine I was getting "crud" out of a rear caliper which necessitated more flushing than normal. Buy 2 and have enough rather than buying 1 and coming up short.
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The system hold less than .5 of a liter.
On our work on cars days I usually use 2/3rds of a liter, which includes the clutch. |
According to the Bentley manual, if you have PSM then the PST2 is needed to bleed the brakes. In other words, not a DIY job.
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Well, I did figure out a way to bleed a caliper twice as fast....
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I believe the PST 2 is software/hardware. I've never seen it for sale, but have heard it's in the thousands of $. |
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What's the best brake fluid to use? ATE Blue?
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For a normal brake fluid change you do not need a PST2 if you have traction control or PSM. You do need it however if you are changing the fluid because those components have been replaced.
The manuals also say you need to hold down the clutch pedal when bleeding the clutch. You don't need to do this unless you have just replaced the master cylinder. |
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PIWIS is the replacement for the PST2 and is needed for the 2005 up cars.
I am not up on the 987/997. I did speak to Peter once about bleeding the brakes on the newer cars and he said he did use the PIWIS. I do not remember the details as it will be a while before the newer cars show up at our work on cars days. Peter said it was a 997 but it might have had PASM or something like that. |
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Thanks |
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Can you elaborate on how you do bleed the clutch then TP? I am doing this soon and need all assistence. |
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I just had mine done last month. The dealership charged about $150. |
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:cheers: |
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http://986forum.com/forums/showpost.php?p=96781&postcount=14 |
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I only say this because people usually forget the value of their time when doing DIY projects. |
Thanks guys, I'm aware of the shared system, I was specifically asking this: If you don't hold the clutch pedal down during bleed, what do you do? Is it pumped till one is sure new fluid exits the clutch bleeder? I have a saved pic of where it is, when I'm done with the styling mods currently underway, I'll be purchasing a motive and working on the brakes & clutch.
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With a motive you do not need to hold the clutch pedal down. The air pressure from the motive will force the fluid through the clutch circuit and out the bleed nipple on the slave cylinder.
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Thanks Tool Pants, is there any negatives to replacing my brake lines with stainless braided? When I do, can I clamp off the old ones and totally remove the calipers for painting? |
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A very good and important point. Thanks!! My time is worth money. A frequent consideration in all things - home maintenance, car maintenance, you name it. Some things are fun, some things are a chore, and some things are just out of my league. I think a brake flush is an OK chore, especially with a helping hand to speed things along. Replacing clutch parts is misery and worth paying someone else. :) |
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