All new lines and MC but still problem

[Racer Z]

OK, I checked a few things and I diconnected brake lines at the distribution block and it does "spit" brake fluid to that point when you pump the pedal. However it does not fire a steady stream, as I would expect. I am wondering if the fittings I got (one came with MC) are somehow the wrong ones. Or maybe this is a sign I am not getting the full stroke distance I need?

When you depress brake pedal, it feels a little firmish (not like when you have brakes or anything, but firmish and steady going down to the floor, then towards the bottom it sort of gives way and drops last little bit to the floor, like its moved passed a certain point and no longer has any resistance? Does this give a clue of anything??

Mostly I just focused on other things today. (see my posts on project updates)

Could not allow myself to be caught up and frustrated all over again. It is a holy day of football after all. Figure I'll take a fresh look at it next weekend.

Maybe these fittings need to have a flared end rather than flat???

For the moment, ignore the way the brake pedal feels. It will never feel right while air is in the lines.

Did the fittings come with the master? Are they the adapters that are only needed on certain vehicles?

I've been wondering about how it is that you bleed the wheel cylinders. Typically, it is a two person job. With the all the fittings tight and all the bleeders tight, press the pedal down, then open one bleeder. Close the bleeder and release the pedal. Repeat until the fluid is clean and free of air bubbles. Then do the next wheel.

If you don't close the valve, air will get sucked back up into the lines.

There is a thing called "Speed Bleeders". I've never used them, but they are designed to allow a single person to bleed brakes.

[basketcase0302]

When you depress brake pedal, it feels a little firmish (not like when you have brakes or anything, but firmish and steady going down to the floor, then towards the bottom it sort of gives way and drops last little bit to the floor, like its moved passed a certain point and no longer has any resistance? Does this give a clue of anything??

That sounds like the same symptoms I had on mine to warrant checking the stroke on the MC pushrod. I might be wrong but I believe if the MC pushrod is in the "neutral position-pedal in the up position" / causing the MC piston to not be centered / you can try to bleed all day / and never succeed. Maybe someone else can pipe in on this? That's what seemed to be my issue until I finally got the stroke adjusted properly.
That fitting does appear to me to have the inverted flare, (to match up with the flare fitting in the MC port). A mityvac tool is another awesome tool you can use for one person brake bleeding, (yet mine wouldn't pull any air from the system at all when I experienced the above symptoms). I'd love to get some of those "speed bleeders" like RacerZ spoke about above. Summit has them as well as NPD and probably DC as well. Anybody have any feedback on them?

[Madsen1970F100]

Finally......brakes are operational!!!

I decided to just go back to the beginning and start over. I removed MC, again bench bled it, checked stroke distance which was fine and then started going line by line, connection by connection. I found that I probably did not bench bleed properly or managed to get some air back in there afterwards. I also think I had some metric unions when I needed standard which was causing a leak. I replaced the unions and replaced on brake line going from the distribution block to the rears, so all is well now.

Thanks for the support and advice.....you know I'll be back asking more questions soon!!

[71highboy]

glad you got it fixed

[70_F100]

Eric,
Everyone above have some valid points to look at. Here's where 70_F100 walked me through checking the stroke on the MC, (which had given me the same symptoms you describe with your truck):
http://www.fordification.com/forum/view ... =5&t=52935
Adjusting the stroke is such is done in very small increments, (took me 3 MC's to get mine right)!
It seemed that ever MC that i got would need a different stroke! My 3 MC's were all from napa / 2 were brand new (not rebuilt) but all were different in appearance for my F-350.
Hopefully the stroke is not your issue! It was pretty frustrating for me...

I had forgotten about that post!!!

Thanks, basketcase, for reminding me that I help out once in a while!!!

[Racer Z]

Glad you got it fixed