black bits in brake fluid reservoir and brake bleed questions

[ebne0018]

I was replacing a stuck rear caliper this weekend when I discovered the brake reservoir had a bunch of black bits floating in it. They are kinda spongy and do not feel like bits of plastic or rubber. Anybody have any idea what these could be?

I tried putting shop rags in the reservoir in the hope that they would cling to the rag, but no luck. I also tried to bleed them through the system, but no luck their either.

Besides pulling off the reservoir, any way to get them out.

Also, I want to bleed the system after I change the caliper, but do I need to do the clutch at the same time?
If so, should I do it first or after the brakes have been done?

[jimbsaab]

HI use a new chicken baster to remove old brake fluid and bits.use new fluid
to top and bleed. take care that the black bits are not parts of seals.if the car is over 5 years old replace the seals. bleed n/s/rear o/sf/.o/s/rear.o/s/f
clutch last. jim

[ebne0018]

thanks for the reply. The car is older than 5 years, what seals are you thinking would need to be replaced?

[jimbsaab]

Master cl/rubbers

[ebne0018]

Are you talking about these?

http://www.eeuroparts.com/Main/PartD...spx?id=4836680
and

http://www.eeuroparts.com/Main/PartD...spx?id=4836730

Thanks!

[jimbsaab]

hi what you need is a brake master cly repair kit.have you looked at the black bits to see if they are old bits of rubber?

[ebne0018]

They didn't appear to be, but I haven't worked on the car in a few days. I was planning on looking at the car again tongiht. Who sells a MC repair kit? Eeuro didn't seem to have anything listed with that description.

Thanks

[jimbsaab]

try motor factors car spares shops dealers hope this helps jim

[shortlid]

I flushed and bleed all the brakes on my '01 lpt 5-speed with 220k on the clock. Saw the floating black bits after I sucked out old fluid and replaced with freash DOT4. Sucked it out with the baster AGAIN then replaced with fresh.

Did you end up needing new Master cylinder seals or was it just lossed deposits n the rez?

[ebne0018]

I had a really messed up caliper and I think the black bits were the caliper seals. I never replaced the master cylinder and I haven;t had any problems since. I do have some black stuff in the reservoir every now and then that I try to get out. I would check your calipers. the black junk is coming from somewhere.