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Old 05-14-2017, 02:16 PM
werminghausen werminghausen is offline
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Join Date: May 2006
Location: Boston
Posts: 1,410
aux pump continued: I have tested the resealed aux pump (spins and is fairly tight) and installed it... seems to work...but I am not 100% sure if I connected the pins correctly as the plastic plug housing was not existing. I just plugged in the 2 pins and there are 2 options.

I guess the wheel needs to spin so the water gets thrown out to the circumference of the wheel housing (if it spins the other way must be wrong).
I tested the pump rotation direction... I left the pins in the order shown in the picture. Maybe someone can say if the orange /black wires are connected correctly??

No coolant leaks! (lucky me).


Now the Monovalve disaster: I installed one of these crap aftermarket units and I seemed to get heat for a while (maybe 10 minutes) but after that the heat went away and never came back! Cold air only. I'll start a new thread with the monovalve.
Attached Thumbnails
W126 300SDL .  Aux water pump next to monovalve- can it be repaired/sealed tested?-unadjustednonraw_thumb_2a3f.jpg  
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