63Hawk-loud,pulsating, power steering noise-what??

[starlightchamp]

When the car is first started, and the steering wheel is moved, a very loud pulsating noise is heard.
The pump output hose is seen to vibrate at the rate of the very scary noise. It goes away
after a few turns of the wheel and the car drives with out any steering problems after
the initial bursts of noise, however, when the wheel is turned near to the stops, the noise will occur. This when turning around in a driveway. The reservoir is full with Dexron lll ATF.

Questions are: What is causing this condition and what remedial actions ?

Thanks for the help.

...Dick Curtis

[StudeRich]

I don't really know the answer to this one, but what comes to mind is a loose press. hose drawing in air, or some other inlet for air. Usually air in the system does cause a lot of noise and pulsation.

StudeRich
Studebakers Northwest
Ferndale, WA

[N8N]

on a car of this age, flushing the P/S fluid is almost never a bad idea anyway.

nate

--
55 Commander Starlight
http://members.cox.net/njnagel

[jarice1]

I would check for belt tension first. A little slipping causes the pulsation of the pump.

[buddymander]

I wonder if your hoses are routed incorrectly causing a high spot that is trapping air.

[JDP]

I've fixed that very issue with a good flush. Remove the return hose from the pump, stick it in a bucket, and keep adding fresh fluid as you cycle the steering with the engine running.

JDP/Maryland
63 R2 SuperHawk (Caesar)
spent to date $54664,75
64 R2 GT (Sid)
spent to date $62,839.60
63 Lark 2 door
57 wagon
51 Commander
39 Coupe express
39 Coupe express (rod)

[JDP]

I've fixed that very issue with a good flush. Remove the return hose from the pump, stick it in a bucket, and keep adding fresh fluid as you cycle the steering with the engine running.

JDP/Maryland
63 R2 SuperHawk (Caesar)
spent to date $54664,75
64 R2 GT (Sid)
spent to date $62,839.60
63 Lark 2 door
57 wagon
51 Commander
39 Coupe express
39 Coupe express (rod)

[starlightchamp]

Thank you all for the help. The PO had the PS overhauled at a restoration shop about 6 years and 3500 miles ago. I will check the belt tension and do a system flush. I kinda thought
it was air trapped because it reminded me of "hammering" in house water pipes from trapped air.
Any precautions to take for the flush other than keeping hands and bucket away from the fan ?

Dexron lll ATF still the best to use ??

Thanks Again,

....Dick Curtis

[hopinfox]

I had a pulsating in the power steering on my 64 Hawk with belt squeal. New belt fixed problem.

[ROADRACELARK]

Check in the bottom of the reservoir for a filter element. Some of those units had filters and also a spring under the lid to keep the filter held tight against the bottom. If there's one there, I'll bet it's stopped up. Remove it, flush the system as JDP said, and leave the filter out. Hope this helps.

Dan Miller
Atlanta, GA

[img=left]http://static.flickr.com/57/228744729_7aff5f0118_m.jpg[/img=left]
Road Racers turn left AND right.

[N8N]

yeah, don't flush on a surface that you want to keep clean, unless it is sealed or painted. other than that just do it.

good luck,

nate

--
55 Commander Starlight
http://members.cox.net/njnagel