Thread: Leaking steering box - rebuildable or replace?

D1's should all have the 4 bolt box, if its just leaking out the sector shaft then replacing the seal in situ is doable just a little fiddly.

Yep, the seal can be done in situ. Getting the pitman arm off can be difficult but I found a fixed 2 jaw puller that did the job. The old seal can be removed by drilling a small hole in each side then installing a small self tapper in the holes. A screwdriver can then be used to lever it out.

Putting it back together is easy, you just need a big torque wrench to do the pitman arm nut up with, or just use a 3/4" breaker bar and wind it up really tight.

Here's one I prepared earlier

Repairing a Leaking Steering Box


Deano

Originally Posted by loanrangie

if its just leaking out the sector shaft then replacing the seal in situ is doable just a little fiddly.

I have done my D2a when the output shaft leaked in place, but when I looked at this box the whole box was moist with the leaking fluid so I assume that it's leaking up higher.

Originally Posted by DeanoH

Here's one I prepared earlier

Repairing a Leaking Steering Box

Cheers, but that only helps for a leaking output shaft. This box seems to be leaking from higher as the whole box is wet with the fluid.

If it's leaking from the top, it could only be a loose connection must likely on the high pressure side, but could be the return. Degrease and steam clean it, then run the vehicle - it should be quite obvious then.

Cheers.

3 bolt boxes have a square section oring on the top cover so i would assume the 4 bolts would too.

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Input shaft seals can leak too, before fitting a new seal make sure the input bearing hasn't failed, to check this the shaft should have no noticeable deflection. The seal has a very small lip so any sideways movement of the shaft will cause a leak. The o ring and locknut on the top cover can leak also as the o ring can harden over time. Best to do the wash and inspect first as mentioned .

Jc