'64 220s Steering Gear - Mercedes-Benz Forum

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post #1 of 5 (permalink) Old 06-07-2010, 07:49 AM Thread Starter
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Vehicle: 1964 Mercedes 220Sb
Location: Muskegon, Michigan
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'64 220s Steering Gear

Well... filled up the ps reservoir after discovering it empty and came to the realization that I still do not have power steering both ways.

When I turn to the right there is a slight delay and then the ps kicks in and it is easy to turn the wheel.

To the left there is no kick in and the pump gurgles and squirts fluid out of the caps relief holes (the reason it runs out of fluid).

I took the pump of last year cleaned it all up and looked it over, replacing all the external o-rings (a whole two) and put it back, not fixing the problem.

So I'm thinking the problem lies in the gear?

I'm open to any suggestions and would really like to get the steering working correctly.
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post #2 of 5 (permalink) Old 06-08-2010, 08:40 AM
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Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
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It has to be bled. On the top there will be a long nut similar to a brake bleeding screw. Get a piece of tubing long enough to go from the bleed screw to the PS reservoir. Start the car, turn the wheel from side to side, with an assistant, and bleed the air out. Add PS fluid as necessary. Don't forget a new filter.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

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post #3 of 5 (permalink) Old 06-08-2010, 01:46 PM Thread Starter
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Well... While heading out to go mow the lawn at another place where my car is it decided to start raining, so I didn't get a chance to look at it today.

It would be wonderful if the only problem with it is it needs bled... the bleeder is on the top of the gear and looks like a brake bleeder, got it... thanks
The filter was replaced last year when I cleaned the pump up.

Just thought I should mention that it had this problem before I removed the steering pump (which is why I removed the pump), so removing the pump had nothing to do with the problem.

I'll get to it sometime this week when it isn't raining and let you know how it goes.
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post #4 of 5 (permalink) Old 06-10-2010, 07:11 AM Thread Starter
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Awesome got to bleeding the ps gear this morning, had the tube blow off once, but I wasn't tubing it back to the ps reservoir, I was just adding new fluid.

When I first opened the bleeder with the engine running it emptied the ps reservoir twice before anything came out of the bleeder, then fluid started flowing on it's own. I had my friend turn the wheel and the hose shot off the valve and I got a trans fluid shower before he killed the engine.
Second try I held the hose on the valve and had him turn the wheel till clean fluid was coming out both ways, then tightened the bleeder.

Test drove it a little and I have power steering, both ways work flawlessly, no jerks or anything, great advice and thanks!
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post #5 of 5 (permalink) Old 06-10-2010, 10:53 AM
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look for a leak. when engine is stopped air gets into the system from there.
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