Good news... put another four corner bleed on the brakes. Pedal is pretty hard when the car is not running, and pedal rebounds well when released.
Then when I started the car the pedal becomes softer, and the pedal doesn't want to return fully.
HOWEVER, I took the car for a drive and the...
Big thanks to Earl and RemoveBeforeFlight. I think I'm about 90% there.
Got around to properly bench bleeding the MC. I did it both ways.
First, I tried the tube feed/recirculate; however, I didn't really get any air bubbles. Additionally, I was only able to push the piston in about 2.5-3...
Thanks - I ran across the same video on YouTube. I've got my vice setup finally... not just need to give it a shot. It seems the "plugged" method requires a lot less time and effort than the "tube feed" method. I might try both.
Couple of quick questions... I think I'm confused by "plugging" the ports.
1) Do you mean plug using a coupler an tubing to re-feed the reservoir brake fluid as you push in? Or "plug" as in block off?
2) If you plug/block off the ports, won't the plugs get pushed out when you push in the...
Good thinking. I rebuilt the front calipers, so there definitely could be air trapped in there.
Odd thing... when I vacuum bleed the fronts, I can never get a solid stream of fluid. Mostly air for not matter how long I vacuum. However, if I pedal bleed the front - no problem getting a...
So I'm just going to throw this out there to see what sticks...
- Re-flared the lines that were leaking. All good now.
- Re-bled the MC with a vacuum while on the car. (Not a true bench bleed.)
- Re-bled each wheel.
- Pedal was firm after bleeding WITH the car OFF.
- Pedal rises a little...
After doing a vacuum conversion I was able to get fluid to the rears reliably, but the brake pedal is very slow to return to the original position.
Additionally, the new prop valve is leaking (albeit very very little) at the two fittings for the front wheels; hence if fluid is getting out - air...
Good to know. I didn't even think about re-flaring the tubing.
As far as the valve goes, I'll see if the re-flare fixes my problem first. These garbage design prop valves are not worth the brass they are made of.
Well, this leak is still pestering me. It is coming from the prop valve... probably from the lines going to the front calipers AND possibly the "safety" valve. I tightened the couplings to the front calipers more, but I'm afraid of butchering those brass threads if I tighten any farther...
So I may have found out the culprit to the soft/low brake pedal issue.
I had noticed a very small puddle of brake fluid (5-10 drops) below the prop valve. Originally I thought this might be a little bit of overfill/spillage from topping off the master cylinder despite having a lot of rags to...
Kibster - did you ever resolve your soft brake issue? I saw your post, but no one replied. I just converted my brakes to vacuum, and I'm having to pull up the brake pedal with my toe.
Slow progress, but progress nonetheless. Today I drove the car down the street for the first time in 10 years!
Car ran great, but still needs some fine tuning. However... BRAKES STILL NEED WORK. I did T off the pcv line, and I am getting vacuum to the booster. I tried using a Might-Vac to...