I finally had time to get back to my baby in the shop. The roller-carrier and drive-key had been delivered so I carefully washed the innards of the Eaton PS pump in solvent, then dipped them in 134 oil before assembling them. The only assembly advice I can offer anyone doing this is to be very careful when inserting the lubricated drive shaft through the seal. The sharp change in diameter on the shaft wants to catch the inside of the seal. Try inserting the shaft from the other side.
I reinstalled the pump, filled it with 134 oil and started the engine. Power steering never felt so good! It works better than ever before!
On a side note, for anyone interested, as suggested in an earlier post to me, I don't think it makes any difference which side is up on the spool in the control valve, at least on my 1961 Model 641.
Thanks very much for all the advice. It made my first PS adventure less frustrating and more fun.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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