RE: Brake bleeding/changing 87 CGT

["Jay Kempf" <jkempf@fabtechinc.com>]

Hi Guys,

OK that's one way. Here's another.

Start by suctioning all the old fluid out of the reservoir and filling it
with the new stuff.

Next fill up the reservoir as far as you can and open a bleeder. The master
cylinder is higher than all the calipers and gravity being what it is (well,
you know). I put a clear hose on the bleeder and dip the end in a can or
bottle to limit the mess. The loop of hose near the bleeder will keep it
under fluid to control bubbles. I changed my Porsche to ATE Super Blue in
this way and it was real obvious when it changed from dark cruddy brown to
bright blue. Just don't let the reservoir run dry. If you don't mind a mess
in your shop you can just open all four and let it go. You can blow the mess
off of your calipers with a can of CRC Free brake cleaner at the end of the
job.

Some people modify a reservoir cap so that they can put some air pressure on
the reservoir to make this fluid flow faster through the system. I don't
bother, it goes fast enough on its own.

BTW it takes a xome time to let the fluid run through to the back calipers
so make sure you have a good micro-brewed six pack at the ready. The best
part about this way is that you can do it without an assistant.

<<donning Nomex>>

Jay Kempf

89 CQ



>
> There will be very little mixing of the fluid when you flush it.
>
> Don't drain it, you'll have a devil of a time getting all the air out,
> especially if you have ABS.
>
> On my new '88 5kcstq, and did two rounds of flushing:
>
> Master Cylinder is near LF (Left Front), so I did RR until the
> fluid changed
> from old to new, then, LR, RF, LF, then RR, LR, RF, LF, and RR.  The first
> round I did until the fluid changed color at each location, the
> second round
> I did 5-10 brake pedal to the floor rounds.  Keep the reservoir from going
> empty, but drain it as much as you dare the first few times before you top
> it off with new DOT 4 brake fluid.  Do not use DOT 5!!!
>
> Let me know if you need more info.