ODRotorhead
New member
- 9
- 20
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- Location
- Maine
M35A2 - Kaiser - 1967 - Unmodified
I'm having problems with my brakes and I'm hoping someone can offer a possible solution.
My brake pedal goes to the floor on the first press. Releasing and re-pressing increases pedal resistance - travel is about halfway to the floor. Third pump - less travel. Fourth pump - the brake pedal is firm and doesn't "bleed down."
Unfortunately, when I take my foot off the brakes for a few seconds, the cycle begins again - First press, pedal to the floor. Second pump . . .
I can't find any reference to that kind of problem in the Troubleshooting section of the TM.
Looked through earlier posts on brakes and haven't found a solution.
Maintenance preformed so far:
Wheels - All six wheel cylinders replaced with new.
Flex lines replaced with new.
Brake shoes are good.
All brake hardware (springs, cams, etc.) in good condition.
Brakes adjusted.
Master Cylinder - Replaced with new.
Short Air-Pak - Rebuilt and reinstalled.
Entire system bled twice - DOT 5 - no leaks anywhere.
My tests were performed with engine running and good air pressure, but only in the chocks. I can't take the truck out on the road until I'm confident I can maintain good brake pressure.
I'm at a loss, so any advice will be much appreciated.
Thanks
I'm having problems with my brakes and I'm hoping someone can offer a possible solution.
My brake pedal goes to the floor on the first press. Releasing and re-pressing increases pedal resistance - travel is about halfway to the floor. Third pump - less travel. Fourth pump - the brake pedal is firm and doesn't "bleed down."
Unfortunately, when I take my foot off the brakes for a few seconds, the cycle begins again - First press, pedal to the floor. Second pump . . .
I can't find any reference to that kind of problem in the Troubleshooting section of the TM.
Looked through earlier posts on brakes and haven't found a solution.
Maintenance preformed so far:
Wheels - All six wheel cylinders replaced with new.
Flex lines replaced with new.
Brake shoes are good.
All brake hardware (springs, cams, etc.) in good condition.
Brakes adjusted.
Master Cylinder - Replaced with new.
Short Air-Pak - Rebuilt and reinstalled.
Entire system bled twice - DOT 5 - no leaks anywhere.
My tests were performed with engine running and good air pressure, but only in the chocks. I can't take the truck out on the road until I'm confident I can maintain good brake pressure.
I'm at a loss, so any advice will be much appreciated.
Thanks