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Re: steering box leaking
Take big nut off that holds pitman arm to it ,use pitman arm puller to pull off pitman arm. I would get a rebuilt unit ,my luck is that the shaft is so foofed that the new seal wont seal it either. also that shaft that connects to the pitman arm probably moves side toside, so the bushings inside are shot. remember this thing is OLD
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I am not familiar with the design of that steering gear but I expect there is an internal leak in the steering box that is allowing more pressure on the column shaft seal than it can cope with.
I believe such a leak would signal the need for a complete reseal and maybe an overhaul. Considering the age it wouldn't be surprising if the seals had deteriorated but equally seals can be damaged by corrosion or wear in shafts or bearings and for continued reliability these things must be checked.
if or when your power steering pump starts leaking at the seals you can put a cap full of break fluid in with the power steering fluid it works,as long as you dont wait to long where the seals are completely wore out to bad
if the leak is coming from the steering box there are usually only 3 places it can come from;most common place is the pitman shaft seal,which can be replaced.this is were the pitman arm of the steering connects to the steering box.another place is the steering box input shaft seal,this is were the steering colume connects to the steering box,which can be replace.the last place is the power steering hoses were they connect to the steering box.there are seals that seal the lines when screwed into the box which can also be replaced.so first you need to see exactly were the leak is coming from.rare occasions the steering box is porous which means the box will need replacing.a car of this age should have shown up long ago.you will have to clean the box off at the car wash then run the car and turn the steering wheel all the way to one side,this will build up pressure in the system to show up the leak quicker.
csk auto parts store has steering seal kits and steering gear shaft input seal kits...as for the replacement procedure, I would recommend having a quality repair manual on hand and do a "dry run" before attempting the fix for real.
The easiest way is also the messiest. Remove pit-man arm nut,Mark the pit-man arm and shaft with a colored marker,to assure you reinstall the arm in the correct position.use a pit-man arm puller to remove pi-man arm.When you get off the shaft,swing it out of your way,leaving the other end connected.Looking up in the steering box you will see a snap ring that you need to remove.When you get it out of there,reinstall the pit-man arm and nut to the correct position but don't tighten completely.Now refill the power steering box with fluid and put the cap back on the steering box.Put a pan under the pitman arm to catch the fluid.Start the engine and turn the steering in one direction as sharp as it will go,you'll here it in a bind but hold it tight,Then turn the steering wheel the complete opposite direction and turn it tight.This will use the power steering to blow the seals out! Shut engine off,look under car and your seals will be pushed out but held in place by the pitman arm you reinstalled.Now you can remove the arm and REMEMBER how they came out,just incase there is no picture instruction with your new seal kit.