78 450 power steering pump trouble - Mercedes-Benz Forum

 
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post #1 of 3 (permalink) Old 11-07-2011, 09:43 AM Thread Starter
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Date registered: Sep 2011
Vehicle: 1978 450 sl
Location: Kittery, Maine
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78 450 power steering pump trouble

After resting in the garage for a few weeks, I fired up the 78, and heard the distinct "dry pump growl" coming from the power steering pump. steering is like manual, with intermittent power. The pump is spitting up fluid. Belts are ok and pulley is turning ok. Time for a pump kit? or is it something else? Please help my baby!
Steve in Kittery, Me
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post #2 of 3 (permalink) Old 11-07-2011, 12:03 PM
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Time for a pump. Repair kit will just reseal.

"If spending money you don't have is the height of stupidity, borrowing money to give it away is the height of insanity." -- anon
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post #3 of 3 (permalink) Old 11-13-2011, 05:21 PM
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Did you add fluid then notice the problems? That sounds like air in the power steering system. Try to bleed your steering system. I had that exact same problem after changing a steering hose. Sometimes if you top off a very low system, you can trap air in it. It's alot easier than pulling and replacing your pump.

Oh, if you do end up changing the pump, you still need to bleed the system with the new one.

Last edited by ktmripper; 11-13-2011 at 05:35 PM.
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