Elexwiz

Today/tonight I've spent several hours bleeding my brakes but the pedal still goes to the floor with just my hand and I can't find a single leak. Here's the story:

Been working on her since November. Installed a junkyard dana 30 and chry 8.25. Rebuilt the rear drums with new hardware and new shoes. Still has the old slave cylinders. New (remanufactured) master cylinder installed.

Tonight I tried bleeding using two different methods. First I tried the vacuum method but there was always a lot of bubbles coming out at each wheel. I did some reading and found a post that said some of the rear drum slave cylinders allow air to creep in when using the vacuum method. So I changed to the traditional method. I had my son sit in the jeep and pump the brakes three times holding the pedal down on the last pump, then I would crack the bleed valve and allow the air and fluid to escape, tighten the bleed valve, repeat. I did this until no more air came out, for 3 bleed cycles at each wheel. After all four wheels were done, I did it again to all four wheels. I'm SUPREMELY confident that there is fresh fluid and no air throughout my brake lines.

I can still push the pedal to the floor using just my hand. This ain't right. I thought about it and thought maybe some air was trapped in the master cylinder so I had my son pump 3 and hold then I cracked the forward line on the master cylinder. Tighten the front line, pump 3, crack rear line, tighten. I did this 3 times.

Right now I can STILL push the pedal to the floor!!!! I've already gone through 48oz of new brake fluid. What am I missing????

Gee oh Dee

What order did you bleed them?

Rear passenger, rear driver, front passenger, front driver?

Did you bench bleed the master?

Elexwiz

Yes the order.

Bench bleed??? That's a big no....

jbsjunk

Are the drums adjusted? If those are set too loose the pedal will drop like a rock until it's pumped up.

Elexwiz

Oh damn..... nope. I was waiting until I got the extension installed for my e-brake linkage. Makes sense. Thanks.

JeepDeep

Front caliper bleeder screws need to be on top. If not the calipers are on the wrong side.

Elexwiz

LOL! This was random, and obviously a common problem!!! I guess I'll be switching my calipers tomorrow.

Elexwiz

Tomorrow's list of things to do:

1. Finish installing e-brake linkages.
2. Adjust rear brake shoes.
3. Swap calipers
4. Bench bleed master cylinder
5. Bleed brakes again!

Thanks guys. I may be on the road by Saturday afternoon after-all!