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Checklist: PS Pump Re-Seal
This weekend I want to reseal my leaky PS Pump.
Below is a checklist of steps lifted from other threads. Is it comprehensive enough? Is it as simple as it sounds? And how long should it take? (I am predicting about 2 hours). Any helpful suggestions would be appreciated. ======== PUMP REMOVAL ========= Remove low pressure hose from steering pump Loosen all mounting bolts on pump. Loosen high pressure side hose fitting Remove pump from car Remove pulley by backing lock nut off and using a sharp blow with a hammer to nut will cause pulley to pop loose from key Remove nut and pulley Remove top of reservoir and take out spring and filter Remove spring clip from back of pump Remove back cover Remove guts from pump: * Short fat spring * Back 1/3 section * Middle section * Shaft section with 10 little vane sections * Two O rings * Two pins Remove keyway from front of shaft Push shaft section out the back of the pump Remove old front seal ============ REASSEMBLY ============ Install two large O rings Insert pins Insert shaft Insert second section Insert all the vane pieces into first section Insert third section Drop in spring Place back in place and push in to start spring clip Seat spring clip Coat bushing with a thin layer of grease Flip pump over and use a deep well socket to seat new bushing Add filter Add spring Install reservoir top Re-attach pump to mounting bracket Attach low and high pressure hoses ========= WARNINGS ========== Regarding Stator and Vanes: ... you must put them back in the same direction to avoid damage. Mark everything as you take it apart. If you don't, well.... Just mark it.
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2008 E350 4matic / Black/Anthracite ------------------------------------ Gone but not Forgotten: 2001 E430 4matic, 206,xxx miles, Black/Charcoal 1995 E320, 252,xxx miles, Black/Grey 1989 260E, 223,00 miles, Black/Black |
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