Power steering flow
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Power steering flow
What kind of circulation should I be seeing in reservoir with car idling and steering wheel either stationary or turning left and right.
Thanks in advance for your help.
Thanks in advance for your help.
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Burning Brakes
Joined: Apr 2008
Posts: 1,222
Likes: 93
From: shelbyville West Michigan
you can check pressure pretty easily with fittings and a liquid filled hydraulic pressure gauge from the hardware store, but you really need to measure flow. You'll need to rig up some way to hold 3 gallons of fluid and measure output.
Have you read the power steering tech papers from Jim Shea yet? That's where I would start...
Have you read the power steering tech papers from Jim Shea yet? That's where I would start...
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
you can check pressure pretty easily with fittings and a liquid filled hydraulic pressure gauge from the hardware store, but you really need to measure flow. You'll need to rig up some way to hold 3 gallons of fluid and measure output.
Have you read the power steering tech papers from Jim Shea yet? That's where I would start...
Have you read the power steering tech papers from Jim Shea yet? That's where I would start...
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Good advice Mel.
Problem is I have lost my power steering.
Fluid level is good, lifted front end no bind in steering, no leaks in system
That's where I'm at. Also belt is tight and no noise from pump
Problem is I have lost my power steering.
Fluid level is good, lifted front end no bind in steering, no leaks in system
That's where I'm at. Also belt is tight and no noise from pump
Last edited by Calo69; Aug 10, 2015 at 04:27 PM. Reason: Add add
Race Director
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Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
Here's the test
http://jimshea.corvettefaq.com/wp-co...s-09OC2013.pdf
http://jimshea.corvettefaq.com/wp-co...s-09OC2013.pdf
Le Mans Master
Joined: Jul 2000
Posts: 6,001
Likes: 115
From: Saginaw Michigan
First of all I assume that you seem to have manual steering all of the time. When stopped and holding the car from moving with your foot brake the steering effort is very, very high. When you say no noise from the pump. When you rotate your steering wheel you still do not hear any pump noise, even at full lock?
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
First of all I assume that you seem to have manual steering all of the time. When stopped and holding the car from moving with your foot brake the steering effort is very, very high. When you say no noise from the pump. When you rotate your steering wheel you still do not hear any pump noise, even at full lock?
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
Thank you for your help.
Any chance could be a flow valve problem?
Greg
Last edited by Calo69; Aug 10, 2015 at 08:53 PM. Reason: Add
Burning Brakes
Joined: Apr 2008
Posts: 1,222
Likes: 93
From: shelbyville West Michigan
you could take the belt off and wiggle the pulley and tell if the shaft is broken. I broke the shaft in my duramax a couple years ago (like every other duramax owner). it's not so noticeable until you get the belt off...
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,430
Likes: 59
From: Long beach NY
St. Jude Donor '15-'16, '18
First of all I assume that you seem to have manual steering all of the time. When stopped and holding the car from moving with your foot brake the steering effort is very, very high. When you say no noise from the pump. When you rotate your steering wheel you still do not hear any pump noise, even at full lock?
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
If there is never any noise or any apparent assist I am beginning to think that your pump is shot. It is possible that the internal pump parts have seized and the driveshaft could be broken inside the pump. The pulley and belt will still spin but the connection to the internal rotor and vanes could be lost.
Jim
Hello, I replaced pump, while driving steering is better, not as easy as before problem but much better. While stopped effort is still very very high. Any suggestions?
Thank you for your help,
Greg