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Old 18-09-18, 04:15
Malcolm Towrie Malcolm Towrie is offline
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Join Date: Aug 2015
Location: Whitby, Ontario, Canada
Posts: 306
Default M8 Greyhound Brake Fluid?

Hi, I'm working on dragging brakes on a Greyhound. We use DOT 3 in the brake system, based on a Google search saying "HB" fluid should be used. (The 1943 manual we have says "information not available at this time".)

I just dismantled a wheel cylinder and found the u-cup seals in good condition but maybe a bit soft and swollen. They make the pistons quite hard to push by hand through the bore, so I was wondering if we should have been using a mineral oil.

Malcolm
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