Hydraulic brake issue

[Borday]

I have a 1995 blue bird international t444e 3800.

I have brake fluid leaking out between the master cylinder and the electric booster pump.

Booster pump is perpendicular to master cylinder, type 4 I believe.

Is this a common problem with an easy fix? or do i need to replace the entire assembly.

My initial research has only revealed the master cylinder and booster pump are rather expensive.

Any info will be appreciated.

[Twigg]

One of the reasons that hydraulic brakes are less popular, is that if they fail you are in trouble, and when they corrode they could fail.

Your brakes, if original (and they very well could be) are 23 years old. That's 23 years of the fluid absorbing moisture, and even with regular fluid changes that moisture has bee attacking the brake lines and cylinders.

I would not be happy until all the steel brake-lines had been replaced, likewise all the cylinders. This part of the job shouldn't be horribly expensive. Steel brake-line and a flare tool are pretty cheap, and you have all the OE lines to use as patterns.

As for the master cylinder and pump ... Look around, often you can get rebuild kits that are much cheaper than the full part, and they restore the working bits to "as new".

Hydraulic brakes are simple, reliable and in some ways they are better for driving than air-brakes, but they require rigorous maintenance and if you have an AT545 transmission, they require that you develop a routine for long downgrades that won't overheat them.

[Brad_SwiftFur]

You live not far from me (I'm close to Braselton GA).

[o1marc]

Originally Posted by Brad_SwiftFur

You live not far from me (I'm close to Braselton GA).

I'm about 30-35 miles from you both. I was at Road Atlanta yesterday for the motorcycle races. I raced at Lanier Speedway, across the street, for 18 years.

[Borday]

Thanks for the responses.
Bus and I are currently in sequoia national foreest for the summer so I have time to rebuild the brakes before the down hill trip. guess I'll get a p.o. box and start ordering parts.

[t444ebusser]

Hey Borday, mine is leaking from exact same spot. in between booster and master right around where the electric motor is. were you able to fix with a seal kit and diagnose what was causing leak? thanks

[nikitis]

I have the same bus but mine are air brakes.