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Old 11-08-2018, 03:16 PM   #1
4master
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Default Rear brakes - no fluid

Replaced the front brakes, calipers, bearings, etc... did not touch the rears.

I have used my pressure bleeder and cannot get any fluid from the rear calipers (got just a bit but no flow).

The fronts seemed to bleed fine (through all three bleeder valves on each caliper).

I put the car in 1st gear (while on jackstands) and when free-wheeling or when revving up, application of the brakes does not work on the rears the wheel keeps spinning (pedal feels fine).

I only drove this car for about a month after purchase before starting some maintenance items and cannot say whether the rear brakes actually worked when I purchased the car because there was nothing for me to compare it to (my first 244).

What should I be looking for? Any common maladies?

Thanks in advance.
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Old 11-08-2018, 03:21 PM   #2
Redwood Chair
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Do the rear brake flex lines, and then the proportioning valves if that doesn't do it.
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Old 11-08-2018, 09:57 PM   #3
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Put the rear up higher than the front. Leave it that way over night. Got caught on this years ago.
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Old 11-08-2018, 11:18 PM   #4
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Clean the bleeder screws for the rear calipers.

A small drill bit in a pair of needle nose vise grips is my method of attack. And compressed air... but brake clean works pretty good too.
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Old 11-09-2018, 01:50 AM   #5
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Sometimes enough debris collects behind the bleeder valve to block the passage. And sometimes the bleeder itself is blocked.

I start by pulling the bleeder screw out of the caliper. If the caliper doesn't start to leak immediately from the bleeder hole, then I take a clean piece of small stiff solid wire and try to clear the bleeder passage. If that doesn't work, then suspect a collapsed or plugged rear brake hoses.

If the caliper starts to leak immediately after bleeder screw removal, then the bleeder itself is plugged and needs to cleaned or replaced.
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Old 11-09-2018, 09:37 AM   #6
4master
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Thanks all.

I suspect there is blockage somewhere higher up since I don't get fluid from either rear caliper.

I did loosen both bleeders pretty significantly (enough that I would have thought if the bleeder valve was clogged, there would have been seepage out of where the valve screws into the caliper) but I did not remove the bleeder valves entirely. I will try that next just to to be sure and will also clean out where the valve screws into the caliper.

My next order of business will be to re-do the rear brakes (new calipers, discs, pads, lines, etc...). I should have done them when I did the front brakes but was spending time on the front half of the car.

Is the proportioning valve the "octopus" that I have read about? The idea of dealing with hard lines (brake pipes) again is not appealing. I had to cut off the drivers side brakes pipes when I started the front brakes because all the fittings were rounded. It took a month for new brake pipes to come in (they were all pre-bent though, so that was a plus).

BTW - I drove the car for about 15 miles yesterday and it drove fine and stopped well - although with properly working rear brakes, I'm sure it would stop even better!
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Old 11-09-2018, 01:03 PM   #7
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