Hearted Youtube comments on The Car Care Nut (@TheCarCareNut) channel.
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@TheCarCareNut Just let me say, when you see all those bubbles, you already know that that is air sneaking past the bleeder....but consider, it's sneaking past - and going in to the caliper. And I never was able to get a truly hard pedal, and I was thinking it was because ALL the air that snuck in, did not get vacuumed out.
So I tried standard dielectric grease first, and it worked to say 80-90%. A big improvement after seeing all those bubbles. But there still were a number of very tiny bubbles. Was never able to have a 100% clear stream. I believe the viscosity of the std. dielectric grease was too thin. Then I tried Dow Corning High Vacuum grease....and.....NO more bubbles AND, I could pump up the Mity-Vac ONCE, and it would maintain the vacuum long enough to almost fill the container.
After making this change-over to the high vac. grease, and doing the bleeding on all four wheels, I finally had a rock-hard brake pedal. Amazon sells the grease: https://www.amazon.com/Dow-Corning-High-Vacuum-Grease/dp/B0857KKVR8/ref=sr_1_1_sspa?crid=22SNQXGEO4I3J&dchild=1&keywords=high+vacuum+grease&qid=1635940832&sprefix=high+vacuum+%2Caps%2C160&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzOUhIVVdQNVVXUUkyJmVuY3J5cHRlZElkPUEwNTQyMjM4MU9CQ0NOSEQ1UU5PTSZlbmNyeXB0ZWRBZElkPUEwMjI5NTc0QVo3SlI4RkswTjI5JndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
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