Bench bleeding master cylinder
#1
Bench bleeding master cylinder
I've installed a new master cylinder on my '78 F250 crew. The instructions say to "bench bleed" the MC before bleeding the brake lines. Is this absolutely necessary to get the brakes to be nice and firm after bleeding them? I'm not wanting to put fluid in the cylinder to "bench bleed" it (either on the bench or on the truck) for fear of loosing brake fluid out of the ports onto my nicely painted engine bay parts lol while trying to connect the brake lines. Any advice guys?
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#3
One way or another you need to bleed the the MC, the benifit of putting it in a vice is that you can get all of the air out of all the nooks and crannys a lot easier if the MC is completley level.
IMHO it's a whole lot easier to bleed it on the truck, but unless your planning on bleeding the entire system, which is recomended, you really need to bleed the MC one way or another.
IMHO it's a whole lot easier to bleed it on the truck, but unless your planning on bleeding the entire system, which is recomended, you really need to bleed the MC one way or another.
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#8
Ok, so i'll bleed the MC......I like Ranger's idea and then cover it with a rag or something. So my concern is that all the fluid (or even one little drop) will come out of the MC when I take the bleeder lines off and try to connect the actual brake lines. I just can't be touching up paint....that will just kill me to see paint get ruined and have to touch up. So will any drop come out of the ports when switching lines?
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