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Steering Rack Replacement with Steering Wheel Off

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Old 08-06-2024, 10:59 PM
  #16  
Lawrencejuliano
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I managed to fix the issue in the interim, I put the nut on the steering shaft and used vice grips to pull it back in a bit. Had my wife sit in the driver seat and fit the steering wheel whilst I pushed the steering shaft back up from below, she was able to then thread the nut into place. That spring is bloody strong... I'll be replacing the bearing shortly but this allows me to fit the rack back on.
Old 08-06-2024, 11:10 PM
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Mrmerlin
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UMM I would fix the steering column first,
as the steering wheel will be smashing the turn signal switch,
this will shear off the brass finger if you turn the wheel.
The steering wheel is not holding the shaft in the correct position,
thus the universal joint will not be properly set,
and will prevent you from pulling the shaft up further
Old 08-06-2024, 11:37 PM
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Lawrencejuliano
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Originally Posted by Mrmerlin
UMM I would fix the steering column first,
as the steering wheel will be smashing the turn signal switch,
this will shear off the brass finger if you turn the wheel.
The steering wheel is not holding the shaft in the correct position,
thus the universal joint will not be properly set,
and will prevent you from pulling the shaft up further
Well, that would explain why the brass finger is gone... I'll get the bearing done first, thank you.
Old 08-12-2024, 08:28 PM
  #19  
Lawrencejuliano
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Originally Posted by Mrmerlin
UMM I would fix the steering column first,
as the steering wheel will be smashing the turn signal switch,
this will shear off the brass finger if you turn the wheel.
The steering wheel is not holding the shaft in the correct position,
thus the universal joint will not be properly set,
and will prevent you from pulling the shaft up further
My new steering bearing and bushing arrived today, so I just had a go at getting the bearing and everything out. The c-clip and old bush came out pretty easily, and most of the old bearing is out however I seem to be missing the outer rim of the old bearing. What's weird is that I can't really see anything further down inside the shaft, but what looks like another bush a few inches further down? Is this correct?

It also appears as though the shaft housing has a notch with a corresponding cutout on the bearing, is this for the bearing to slide past?

Am I better off removing the entire shaft housing to get this out or is it easier than that?

Here are some hopefully better photos


Bush and partial bearing

view of notch at 2oclock in shaft housing

view of what appears to be another bush with cutout at 9 oclock





Old 08-12-2024, 10:17 PM
  #20  
Mrmerlin
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I think you missed the part about chipping out the outer race ,
NOTE the outer race has fractured and let the ball bearings and the inner race fall down the shaft.

The outer race must be removed then the new outer race driven in,
pay attention to the flat edge location of the original it faces up to clear the horn tab.

NOTE sand down the mating surface of the column so its devoid of any burrs ,
this can fracture the new bearing outer race.

NOTE this whole procedure will be easier if you first remove the turn signals switch assembly,
NOTE your gonna need to have that removed to replace the broken horn contact.
Roger has new horn contact fingers.
NOTE from your picture the outer race was not supplied with your new bearing.


https://www.porscherepair.us/porsche-928-repair/replacing-upper-steering-shaft-bearing.




Last edited by Mrmerlin; 08-12-2024 at 10:43 PM.
Old 08-12-2024, 10:35 PM
  #21  
Lawrencejuliano
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Originally Posted by Mrmerlin
I think you missed the part about chipping out the outer race ,
NOTE the outer race has fractured and let the ball bearings and the inner race fall down the shaft.

The outer race must be removed then the new outer race driven.
in pay attention to the flat edge location of the original.
NOTE sand down the mating surface so its devoid of any burrs ,
this can fracture the new bearing out race.

NOTE this whole procedure will be easier if you first remove the signals switch assembly,
your gonna need to have that removed to replace the broken horn contact.
from your picture the outer race was not supplied with your new bearing.


https://www.porscherepair.us/porsche...t-bearing.html
Thanks you, I now see the outer race is front and centre in my picture. I stupidly was searching inside the shaft for it, thinking it was somewhere near the inner. This looks much simpler now.

I'll do exactly as you, also my new bearing did come with the outer race, what was pictured previously was the old fractured inner bearing.

Appreciate your guidance!




Old 08-12-2024, 10:46 PM
  #22  
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OK now I see your new bearing ,
it appears to include the outer race.
take your time stuff a rag down the tube,
so the pieces dont fall down.
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Old 08-12-2024, 11:18 PM
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Originally Posted by Mrmerlin
OK now I see your new bearing ,
it appears to include the outer race.
take your time stuff a rag down the tube,
so the pieces dont fall down.
Great call, thank you again!
Old 08-13-2024, 05:09 PM
  #24  
Lawrencejuliano
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Got it all done, tapping out what was left of the bearing was a pain but went quickly once I managed to get it to bend inwards. I cleaned up any potential burrs on the inside, used a 27mm deep socket to tap the new bearing in (same as is used to remove the steering wheel, conveniently). Then I managed to pull the shaft back with vise grips, slip the bush on, and fit the c-clip after a couple of tries. All in all not that bad of a job and unbelievably worth it with how the steering now feels.


Bearing in place on spline

27mm deep socket

All back in place with new horn contact

Old bearing outer race
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Old 08-13-2024, 10:36 PM
  #25  
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See it’s easy once you understand how its supposed to work Glad you fixed it
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