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#1
05-19-2006, 10:58 PM
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How to get back plate off power steering pump
I have the power steering pump out of W126 and W123.
Have pulley off. All the listed instructions on this site say: 1. Remove back cover. 2. Remove pump guts. I removed circular spring clip from back, but cover does not want to budge or come off. I did tap on front of shaft thinking this would dislodge rear cover. Can anyone advise to remove rear cover ? Thanks.
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80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250 
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#2
05-19-2006, 10:59 PM
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is there a seal? maybe if you rap on the joint with a flat head and a nice lil tap with a hammer.. and a tap not a bang
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#3
05-20-2006, 12:57 AM
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Oh... this is fun !
So a bump and a little turning with a chisel on the inside edge and it sort of pops out. And I think I am done - but wait. THen I figure out how to get the next plate out (pain). And finally - I got the vanes all out and have them carefully placed aside in the outer ring (keep the vanes in the same direction). So - here I am pump housing basically empty. I STILL CANNOT GET THE SHAFT OUT !!! I thought the shaft comes out so I can pull the seal out. Any thoughts ? Do I just tear the seal apart with the shaft in ? If so, why did the posts say to get it all apart first ?
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80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250
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#4
05-20-2006, 02:40 AM
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On my Vickers pump, there were two internal o-rings on the backing plate area. I used a big ol' C-clamp to compress it, then pop that retaining ring out. Believe me, this tested my wits BIG time.
 I had no reason to remove the shaft, my front seal wasn't leaking (I planned to replace front seal) and after my PS pump ordeal (don't ask)... I will cross that bridge when I come to it. Better to leave it alone. My SDL pump needs a rebuild but I haven't figured out how to remove it yet let alone tear one apart...
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I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#5
05-20-2006, 11:17 AM
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My seal does leak
My pump worked fine, it was only the front seal that was leaking (a little).
All I need to do was the front seal. Can someone advise as best way to remove the front seal ? The shaft is still in.
__________________
80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250
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#6
05-20-2006, 02:07 PM
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For the front seal you need a special tool to yank that pulley. I believe the member "strife" on here has one. I made a thread regarding it a while back and he offered to let me borrow the tool.
Once you remove the old seal, installation should be easy with a deep socket and tapping it into place...
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#7
05-20-2006, 08:44 PM
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The pulley is off, no problem there.
Putting seal IN, no problem there. Would like a little advice on getting the seal OUT.
__________________
80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250
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