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Brake Bleeding help

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Old Aug 8, 2013 | 07:16 AM
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Default Brake Bleeding help

2005 Honda s2000

Last night I purchased a quart of ATE super blue and tried attempting to gravity bleed my brake fluid. First mistake was I didn't use a turkey baster to suck out the brake fluid in the reservoir. I figured I can loosen up the RF bleeder and allow gravity to do its job and drain the fluid. For the first minute I had a really good draining session which drained the reservoir almost to the lowest point. I refilled the reservoir to max when it got really low.

Then the draining stopped. I still didn't see any blue fluid come out the bleeder so I waited 20 - 30 mins and still nothing. Maybe a drip or two after 5 minutes. I got impatient so I started to press on the brakes thinking it will just drain out like I did with my clutch bleed. My mistake was I left the bleeder open while pushing on the brakes so I believed I was sucking air back into the system. Nothing was coming out so I thought maybe I should go for a ride just to warm up the fluid and it will just drain like earlier, did not work. So after a little research I had my wife help me try to bleed out the system by her pumping the brakes a few times and holding it down while I crack the bleeder. Close bleeder have her pump and hold down then I will crack again. Did that for 5-10 mins but didn’t really see any fluids come out.

Got frustrated and decided to change the spark plugs and bleed the clutch fluid with the ATE. Now I’m driving with a really soft pedal and with air in the system. The master cylinder is not leaking.

Need help.
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Old Aug 8, 2013 | 08:20 AM
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When your wife helped you out, did yall bleed each brake or just the one corner? You need to go through each corner and bleed each one in the appropriate order.
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Old Aug 8, 2013 | 08:55 AM
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We just tried bleeding the RF. My understanding from reading this forum the bleeding rotation is RF,LF,LR,RR. From speaking with a service advisor today he told me to start furthest from the MC. RR,LR,RF,LF.
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Old Aug 8, 2013 | 09:28 AM
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When did your wife release the brake pedal? It wasn't clear in your description.

I did this last night on my friend's Mini Cooper, after replacing a rear caliper, and fluid came out in only a few cycles.

1. Top off master cylinder (we left the cap off)
2. Attach clear plastic tubing to the bleeder
3. Open bleeder
4. Press brake pedal all the way down, and hold firmly (the pedal got pretty firm around the 5th cycle)
5. Close bleeder
6. Release brake pedal
7. Repeat from step 3 until clear fluid coming out is clean

Doing one caliper drained less than half of the reservoir on the Mini. For the replacement caliper, it drained slightly more than half.
For the S2000, I always just did the gravity bleed method, I kept an eye on the reservoir, but (from what I recall) generally only needed to top off between calipers.

Since you have problems with your front right, you should probably start there, instead of switching to the right rear.
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Old Aug 8, 2013 | 09:37 AM
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She released the pedal once the bleeder was tightened. We did this for 5-10 minutes, still no fluid
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Old Aug 8, 2013 | 10:17 AM
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Originally Posted by Cali2K
She released the pedal once the bleeder was tightened. We did this for 5-10 minutes, still no fluid
How many cycles did you go through? It took us around 15 cycles per caliper on the MIni until we got good clean fluid, probably less than 5 minutes each caliper. Slightly more for the replacement caliper. This was at a fairly leisurely pace. Setting up for the next one took us longer than anything else.
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Old Aug 8, 2013 | 12:10 PM
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Follow these instructions here :

https://www.s2ki.com/s2000/topic/993...ravity-method/

There's no reason for people to recap on a topic that's been covered and mastered in a DIY. I did this method, I only had to use around half of the fluid. Still had plenty left for my clutch. Make sure you follow the correct order.
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Old Aug 8, 2013 | 12:29 PM
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Originally Posted by BlakeKleinCalabrese
Follow these instructions here :

https://www.s2ki.com/s2000/topic/993...ravity-method/

There's no reason for people to recap on a topic that's been covered and mastered in a DIY. I did this method, I only had to use around half of the fluid. Still had plenty left for my clutch. Make sure you follow the correct order.
There was no recap on gravity bleeding. He explained what happened when he tried the gravity bleed, but got air trapped in the system. Then he tried switching to the two person pump/hold method, but left out a couple details.

If he followed that post to the letter, some problems would have been avoided. Unfortunately now there is a problem to solve - there's air in the system and he can't get fluid out of the front right caliper.

If he didn't explain his process, then how would anyone be able to help him figure out what went wrong?
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Old Aug 8, 2013 | 01:12 PM
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Originally Posted by shinigamiz
Originally Posted by BlakeKleinCalabrese' timestamp='1375992619' post='22714158
Follow these instructions here :

https://www.s2ki.com/s2000/topic/993...ravity-method/

There's no reason for people to recap on a topic that's been covered and mastered in a DIY. I did this method, I only had to use around half of the fluid. Still had plenty left for my clutch. Make sure you follow the correct order.
There was no recap on gravity bleeding. He explained what happened when he tried the gravity bleed, but got air trapped in the system. Then he tried switching to the two person pump/hold method, but left out a couple details.

If he followed that post to the letter, some problems would have been avoided. Unfortunately now there is a problem to solve - there's air in the system and he can't get fluid out of the front right caliper.

If he didn't explain his process, then how would anyone be able to help him figure out what went wrong?
The only thing to do is to restart to ensure 100% of the air is out. Any other methods are plausible, however I wouldn't try them.
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Old Aug 8, 2013 | 09:03 PM
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Bingo! So I got home from work, ate dinner, and got to work. First I put the s2000 on 4 jack stands and took off the rims. Sucked all the brake fluid out of the reservoir and refilled it with the ATE super blue. The bleeding began, I started RF, LF, LR, then RR. At every corner the brakes were pumped a few times, pushed in as far as it can, bleeder cracked, closed the bleeder, then started the process again. I was only able to get a little bit of fluid from the RR. After 40 mins of doing this with no luck I gave up. I walked to my tool box and found this bad boy.



I said what the heck lets try this out. I connected the suction hose on the bleeder. Cracked the bleeder and started pumping for a good 10-15 minutes until I saw the ATE blue fluid come out. Repeated this at all four corners while filling the reservoir. I took it for a drive and started testing out the brake pedal. It felt better then before!
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