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#1
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Brake fluid does not flow out of brake bleeding valve.
I changed all the brake hoses (new). My master cyl. showed signs of leaking so I changed that as well (had one laying around). I bled the pass. rear, perfect. I bled the driver side rear, perfect. I tried to bleed the pass. front and it spurted out a bit of air and fluid and after that initial spit, nothing further. Same thing with the driver's side.
Are my caliper's stuck in a position where they do not let fluid to go thru, or do I have another issue? I tested my master cyl. before I put it in by placing the reservoir and pouring some fluid in and when I pumped fluid squirted out of every orifice with great force, so I guess the mast. cyl. is fine.
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1976 280C SLOWER DRIVERS KEEP TO THE RIGHT. DRIVE RIGHT PASS LEFT |
#2
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One thought would be that you lucked out and got loose junk stuck in both front bleed screws.
The system is split diagonally so if it comes out a rear caliper, it should come out the opposite front corner unless there is a proportioning valve somewhere. If there is a proportioning valve (I don't think you have one), it could be stuck or need to be "reset" by pumping the pedal a few times with all bleed screws closed. Michael
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Usta haves '69 250/8, '76 280C, 1971 250C 114.023, 1976 450SEL 116.033 Current have, 1983 300SD 126.120 |
#3
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Replace the bleed valve or simply R&R to clean it and the orifice of debris if you cannot locate a new valve. I suspect you simply stirred up the crud and it needs to flush out thoroughly. But, keep in mind that the crud may be a sign the caliper is badly rusted and verging on failure if it has not failed already.
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