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URGENT :Power Steering Pump Advice
I have a 1981 W123.130 617.912 300D. My power steering pump is leaking like a fast dripping tap. It's a Zf 76 series, and have replaced the front seal successfully, however the rear is the major problem. I have got the seal kit to do the job (2 O'rings and a washer), but some advice or instructions on how to replace the seals would be very welcome. I've not been able to source any schematics or instructions, and Mercedes just don't supply that information unless you spend $265 on a CD manual. (I won't do that!!, and Haynes Manuals are useless!) Any tips would be greatly appreciated.
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#2
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Try here: http://mb.braingears.com/
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
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Quote:
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#4
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Get the pump out and on the bench.
The rear of the pump pushes in, there is a spring behind it. A couple screwdrivers hold in a tension ring around the circumference. Remove that ring (you may not need to push the back in to do that). The back pops out. The two large orings are replaced right there. You probably will not have to remove the guts of the pump at all. But if you do - absolutely do not let the vanes get out of order or get put in backwards. Plenty has been written on this site about losing pressure after reinstalling the vanes backwards. I have one disassembled on the bench right now and have not gotten around to putting it back together. Maybe some pictures would be in order. You are right, have not seen a write up on this yet.
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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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Mission successful. "G" clamps are of great assistance when removing and installing backing plate.
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#7
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Quote:
Guess I'm thinking of something else, what be a "G" clamp and how does it help remove the back plate. I remember have a bugger of a time getting that plate off
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#8
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Yeah... clamps. I had not thought of that.
I'll use them during reassembly.
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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 |
#9
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Quote:
G Clamps will help to avoid bending the spring when removing and installing the backing plate. Last edited by jasonm512; 09-08-2006 at 11:52 PM. Reason: Additional Tip |
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