04-02-2021, 05:04 AM
You may be in uncharted territory here with a vintage that early.
Some basic diagnostics will help narrow the problem, but will take some work.
I would bleed the brake system and replace the brake fluid. Who knows how long it has been in there.
Second thing I would do is disconnect the brake lines at the master cylinder, and screw caps on the master cylinder. If the pedal is firm, then the problem is downstream. If it is not then the problem is with the master cylinder or booster. At least doing this you can cut the problem in half.
Would you mind adding some details to “we know the lines and wheel cylinders are in working order”? Were the wheels removed, and movement verified?
Some basic diagnostics will help narrow the problem, but will take some work.
I would bleed the brake system and replace the brake fluid. Who knows how long it has been in there.
Second thing I would do is disconnect the brake lines at the master cylinder, and screw caps on the master cylinder. If the pedal is firm, then the problem is downstream. If it is not then the problem is with the master cylinder or booster. At least doing this you can cut the problem in half.
Would you mind adding some details to “we know the lines and wheel cylinders are in working order”? Were the wheels removed, and movement verified?
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home
)