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Tips on resealing 6.9 hydraulic pump

Started by Rolo, 30 March 2021, 01:40 PM

UTn_boy

I wish I'd seen this sooner......I have a whole box of these.  :/ 
1966 250se coupe`,black/dark green leather
1970 600 midnight blue/parchment leather
1971 300sel 6.3,papyrus white/dark red leather
1975 450se, pine green metallic/green leather
1973 300sel 4.5,silver blue metallic/blue leather
1979 450sel 516 red/bamboo

Rolo

Sorry to reply to my own thread, but thought I'd put closure on this thread.  SPOB sent a beautifully rebuilt pump to replace the --- and I still can't believe this --- porous original pump.  Wasn't just a problem with my housing leaking through a crack that isn't visible.  When the car is all the way down, the old pump would take a couple minutes to get the car to rise.

Now it's a few seconds.  Martin says my old pump wasn't getting to specified pressure.