D6 9U steering pump seals

Impossible. At least if you mean the pump shaft seal that leaks the oil from the steering booster into the bevel gear housing.

You are correct, time to do it now while the seat tank is off. You unbolt the steering booster unit and flip it over to remove the pump from the bottom. Then you pull the shaft and replace the seal. If you have leaks from the front plungers or output quills that sit down on the steering clutch release shafts, this would be the time to do those as well. Just the booster pump shaft seal will take maybe a couple hours at most.

Pulling booster seals. 7/8" x 14 tpi threaded rod and coupling.

Just what I wanted - thank you. Of course no way to know the condition of the seals INSIDE the unit, but I can see the seals on the outside leaking. The unit (pump) does not lose oil quickly, I am hopeful only the outsides are leaking.

Who knows, maybe I'll be overcome with ambition and pull it just for fun.

Thanks again

These booster units are no big deal to remove and replace.
The pump shaft seals should be replaced . It will leak oil from the booster into the bevel gear compartment which shares the oil with the gear box.
Can be happening and you dont even know.
Pump shaft seals are back to back ;ie inside seal keeps oil in booster , outer keeps oil in bevel gear compartment. I think there is room for two seals facing each way. Seal are standard of the shelf and only cost a few dollars each.
There is also a filter screen in there that should be cleaned while you are in there.

Dang, you guys never cut me any slack. I won't have any reason to work on it next year if I fix it right this year....

Dang, you guys never cut me any slack. I won't have any reason to work on it next year if I fix it right this year....

Keep taking advice from OilSlick... he usually fixes things 3-5 times before getting it right. :doh: That way you can fix it next year and the year after...👍

Ok, I pulled the light weight steering booster off the D6 and brought it into the shop. Maybe if I had left it in the sun, where it is to reach 110 today, it would come apart easier.

I saw all the extreme weather warnings on the news so I took a break, and their advice, to enjoy an adult beverage while I ask another question.

I drilled out the pins on the top of the booster, until I hit aluminum - about 3/8" deep. I built a seal puller
With a piece of all thread and a ground down nut. I used a jamb nut to hold the "puller nut" in place.

I threaded the puller onto the seal ( ok, seal holder). I believe I have about3/8" thread engagement. Then with a couple washers I tightened down the puller nut to extract the seal holder. No movement.
I'm not real comfortable putting a lot of torque on something that, if it breaks, I'm screwed.

A little heat maybe ?

Thanks all

Having to drill out the pins is a left over piece of miss- information. Those pins retain the seat/retainer, not the seal holders.
3/8" - 1/2" thread engagement is about right. Shouldn't have to heat but I don't see why not if you wish.
The picture shows about where the holders are located.