Re: Spongy Brakes
On drum brakes a residual check valve is necessary , the valve holds residual pressure on the brake shoe assembly to avoid having to build up volume / pressure to overcome the return springs and displacement of clearance area between the shoes and drum every time the brakes are applied thus allowing faster application of brakes also as Richard Crow said to help avoid air entering the system.
Last edited by Fordestes; 06-03-2020 at 09:07 AM.
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