Hard pedal soft pedal

[storm]

Have a split window bus with duel circuit master. Went to replace a leaky axle seals (rear). That went fine, but to keep the backing plate still on the axle tube I disconnected the hard line to the wheel cylinder. I did cap it.
Finish the axle seal and reconnect the hard line to wheel cylinder. Bled that side (right rear. Tested brake petal and felt spongy. So I started the bleeding process. Finally got a hard petal.
The next day put everything back on the bus started her up back out of garage and experience petal to floor.
Checked all brake lines and soft lines for leaks non-noted. Maybe it’s the master. Loosen hard line to master one at a time. While under the front of the bus I can pull the brake petal to see if there is pressure yes.
What’s your thoughts.
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always ready to learn and give advice

[KTPhil]

Barring a huge leak, a pedal-to-floor condition is almost always the master.
At this point, I'd go whole hog... replace the master and soft lines. Maybe even use the opportunity to switch to DOT5 fluid?
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Current Fleet:
- '71 Fastback
- '69 Westfalia
Retired:
- '67 Beetle
- '65 Beetle (x2)
- '65 Bus
- '71 Squareback

[storm]

KTPhil, yes your right, I think it’s the master. When I was bleeding a wheel I noticed the brake fluid in the clear line was going back and forth and not going forward. I think it would be the master ports not returning the fluid to the reservoir.
_________________
always ready to learn and give advice

[KTPhil]

I guess the first check is to make sure you have a little bit of play with the pedal up. That can block the return port.
If there is play, then I'd change out the master.
_________________
Current Fleet:
- '71 Fastback
- '69 Westfalia
Retired:
- '67 Beetle
- '65 Beetle (x2)
- '65 Bus
- '71 Squareback

[BarryL]