power steering pump seal kit

[850oldschool]

I've seen these kits for sale in several places:

Edelmann 8794
Gates 348372

Both are in the 5-10 dollar range. I'm thinking that if you don't run the pump dry for an extended period, the only thing that fails is the shaft seal and o-rings. Mine is quiet and still works well, but there is a very slow yet steady drip on the alternator. This, of course, will most likely result in a dead battery/no start at the most inconvenient time possible.

A little quick searching here and on google hasn't turned up a DIY PS pump rebuild tutorial. The pump looks only a little more complicated than a stone axe.

Anybody done it?

[850oldschool]

The Gates kit is also listed for a large swath of 90's GM products, as well as a lot of Jeep models from that era. Also the last couple of years of Volvo 240's.

Still no luck finding a DIY or a parts diagram.

[850oldschool]

This is an autopsy photo of my first attempt. Incredibly, even with these badly mangled o-rings it didn't leak, although the steering was fairly stiff at idle. There was plenty of assist when the engine was above 1000 RPM, though. The second one I did seems to be working perfectly.

I did wind up installing the Gates kits. I also wound up buying a few more viton o-rings, since the kit doesn't include one for the reservoir or the fitting which the high pressure hose screws into. I used a green HNBR o-ring on the high pressure hose fitting, 5/16" ID X 7/16" OD and so far it's bone dry.

Even using the Lisle 39000 puller on the pulley it was a real struggle to get the pulley off The first time. After 3 hard whacks on the pusher screw I'd be able to turn it another 45 degrees. I think it took over 20 minutes of whacking and wrenching.

[850oldschool]

I finally got around to checking the fit of the semi-deep socket I ordered after struggling pretty hard with these bolts the last two times. It's absolutely perfect. I didn't even know semi-deep sockets were a thing until a few weeks ago.