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Bleeding Brakes 200

The weakness with the vacuum system, is as you suspected, that air gets drawn in through the bleeder threads.

You could try gravity bleeding ie. open the bleeder and let fluid drip out.

You could speed up the process by depressing the pedal with the bleeder open, and holding the pedal down with lumber while you tighten the bleeder.

You could pressure bleed using a master cylinder cap with an air valve inserted and pressurized with a cheap hand bike tire pump. Keeping the pressure low so that you don't pop the reservoir and refilling between bleeds.

Using a pressure sprayer would be overkill as you are only bleeding a few ounces. And you avoid the fluid waste/contamination, clean-up and storage of sprayer.
--
1980 245 Canadian B21A with SU carb but electronic ignition and M46 trans in Brampton, Ont.






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