Yellow73SB

How hard is it to get all the silicone crap out. What do you recommend I do?

I don't really want to take everything apart.

davidfarmer

I've heard it's impossible to get out, but I've never done it. You certainly want to drain as much as possible, before you start flushing the new stuff through. In other words, I'd break all of the line apart, and draing the caliper/master/ABS systems individually BEFORE I even consider putting the new stuff back in. Maybe even take the master off and spray it out with brake-clean/carb-cleaner etc.

Just a guess....never actually done it.

AU N EGL

I helped some one do that once.

We took two full liters flushing. Rotating Right Rear, left rear, right front, left front.

Then when and drove the car and did some easy braking to make sure the ABS was activated.

then again another full liter flush.

Then a week later we did a full flush again and still found syslcone bubbles still in the lines.

Yellow73SB

So I basically need to take the calipers apart and the master cylinder.

And clean them and flush the lines.

I heard silicone is horrible on the track.

AU N EGL

Not for covettes even DDs.

Silicone is for only some calipers.

a good DOT4 brake fluid is what is needed.

Yellow73SB

So silicone is fine

AU N EGL

NO. Not for cars at all. IIRC only from some truck calipers not ABS systems

ABS systems do not take silicone. Silicone does not absorb water. Water will stay in bubble form. WHen super heated as in hard braking the water will foam and cause calipers to lock up ( or close to that )

Yellow73SB

Ahhh gotcha

I don't have ABS being as it was made in 73

davidfarmer

isn't silicone bad for the seals in some systems?

AU N EGL

YES that is the other part.

kelp

You also have to go to the dealer to have them open the ABS thing up and drain the dead fluid there.

Yellow73SB

I have a 73