i need to know exactly what i need to do to bleed a new master cylinder and/or do i need to bleed it
Aug 13, 2008 at 11:39 AM
1991 Ford F150 master cylinder
1991 FORD F-150
JSMAIDLOW
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Hi there,
Bench bleed it first, put it in a vice and fill reservoir, with the push rod depress the piston, hold fingers over fluid ports and release piston, keep ports blocked till piston is released fully or you will draw in air again, do this till good stream of fluid on down stroke id visible, fit cylinder and bleed all wheels, depress pedal open bleeder and allow fluid to expel close bleeder before releasing pedal, do this at each wheel until no air bubble are seen, it is handy to use clear hose and a glass jar to bleed into so it easier to see the air bubbles.
Mark (mhpautos)
Bench bleed it first, put it in a vice and fill reservoir, with the push rod depress the piston, hold fingers over fluid ports and release piston, keep ports blocked till piston is released fully or you will draw in air again, do this till good stream of fluid on down stroke id visible, fit cylinder and bleed all wheels, depress pedal open bleeder and allow fluid to expel close bleeder before releasing pedal, do this at each wheel until no air bubble are seen, it is handy to use clear hose and a glass jar to bleed into so it easier to see the air bubbles.
Mark (mhpautos)
Aug 13, 2008 at 9:36 PM
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