Hi __?__,

OK on finding/fixing the leaky crank seal.
You should do a "glove test" to check for clogged EGR plumbing.
If your EGR clogs up you can easily pop the rear main seal which is a Major
repair that you want to avoid.
Be sure to use only full synthetic oil that should not clog the EGR.

When you press the brake you should have a hard brake peddle
and if pumping it restores braking you need to bleed the brakes.

When was the last time you flushed the brakes with new DOT4?
Brake fluid goes bad with age and/or severe use.
A symptom of bad brake fluid is Brake fade at high speed.

One thing to watch out for when bleeding brakes, don't pump up the brakes
to bleed with the brake peddle, use a pressure bleeder. If you pump manually, the master cylinder piston goes deep into the bore where it may be corroded and can destroy the M/C seals. You can usually find the pressure bleeder kits at auto parts stores for a free rental.

Happy holidays, Bill