Thread: Help! Leaking power steering fluid.

Originally Posted by DeanoH

I've found power steering 'stop leak' to be very effective on worn/hard seals. Used it on my Mazda T300 bus and it was still not leaking six years later when I sold it.

Deano

I have a leak out past the O ring on the bearing adjuster assembly for the worm and stop leak didn't work the several times I've tried.

The input and output shaft seals are OK

The issue you get is there is (should be) two lower seals, the primary pressure seal and then a dust seal. Dirt/mud/water get behind the dust seal and grind away at the hard chroming on the shaft, from there it's only a matter of time before it wears away the seal and the pressure in the system will continuously pump it out.

The shaft can be reground to remove the corrosion and rechromed, then when rebuilding remove the spring from the seal and untwist at the join and cut out about 1 or 2 turns. Then rejoin and fit.