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Steering pump making noise
#1
I have a 71 mach 1 with a refurbished original type steering pump and gear.Also the pulley looks original.
When idling the pump does not help at all - it needs some revs before it wakes up and when turning it whines.
The fluid level should be ok - at least seen from the stick. No leaks.
Wheels are 245 wide.

Concerning the steering gear there is some free play - any advice how to get rid of that ?
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#2
Get a new belt. I suggest the Ggodyear Gatorback. Should solve the problem. No more than 3/8" deflection when tight. Clean the pulley before install...alcohol works. I use Stoli. Ha!
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#3
Mine does the same thing.

If you have the correct fluid (type F) in it then as you point out I suspect that the pulley ratio which may have been fine with stock tires isn't adequate for larger tires.

I also think that the parts store rebuilt steering pumps may not perform as well as a factory pump in good condition.

When I get around to it I am going to try a different size pulley and see what happens.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#4
wwhite72;160916 Wrote:Get a new belt. I suggest the Ggodyear Gatorback. Should solve the problem. No more than 3/8" deflection when tight. Clean the pulley before install...alcohol works. I use Stoli. Ha!

Hi,
the belt is new - but I have to check the tension.

I presume that the previous owner of the pump had just used a service kit to update it = new seals , gaskets etc…

The fluid I use is Automatic gear / power steering type fluid.

TommyK;161004 Wrote:Mine does the same thing.

If you have the correct fluid (type F) in it then as you point out I suspect that the pulley ratio which may have been fine with stock tires isn't adequate for larger tires.

I also think that the parts store rebuilt steering pumps may not perform as well as a factory pump in good condition.

When I get around to it I am going to try a different size pulley and see what happens.

Thanks !
can you give me some names of the brands of this "F" type fluid to check if I get any of them locally.
Currently I use regular automatic gear / steering fluid.

The width of the tyros is also my concern - 245 may need more power to turn.

What about the gear "free play" ? I think that the gear is all original ( not refurbished). I have another gear from a 72 Mach 1 ( not refurbished) which I might try but to mount it looks quite a job as there is not much space around and with manual gear linkage even less ...

wwhite72;160916 Wrote:Get a new belt. I suggest the Ggodyear Gatorback. Should solve the problem. No more than 3/8" deflection when tight. Clean the pulley before install...alcohol works. I use Stoli. Ha!

… about the noise … it is not the squeaky sound of a loose belt but more a low tone sound coming from fluid flow...
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#5
Higgins56;161056 Wrote:
wwhite72;160916 Wrote:Get a new belt. I suggest the Ggodyear Gatorback. Should solve the problem. No more than 3/8" deflection when tight. Clean the pulley before install...alcohol works. I use Stoli. Ha!

Hi,
the belt is new - but I have to check the tension.

I presume that the previous owner of the pump had just used a service kit to update it = new seals , gaskets etc…

The fluid I use is Automatic gear / power steering type fluid.

TommyK;161004 Wrote:Mine does the same thing.

If you have the correct fluid (type F) in it then as you point out I suspect that the pulley ratio which may have been fine with stock tires isn't adequate for larger tires.

I also think that the parts store rebuilt steering pumps may not perform as well as a factory pump in good condition.

When I get around to it I am going to try a different size pulley and see what happens.

Thanks !
can you give me some names of the brands of this "F" type fluid to check if I get any of them locally.
Currently I use regular automatic gear / steering fluid.

The width of the tyros is also my concern - 245 may need more power to turn.

What about the gear "free play" ? I think that the gear is all original ( not refurbished). I have another gear from a 72 Mach 1 ( not refurbished) which I might try but to mount it looks quite a job as there is not much space around and with manual gear linkage even less ...

wwhite72;160916 Wrote:Get a new belt. I suggest the Ggodyear Gatorback. Should solve the problem. No more than 3/8" deflection when tight. Clean the pulley before install...alcohol works. I use Stoli. Ha!

… about the noise … it is not the squeaky sound of a loose belt but more a low tone sound coming from fluid flow...

Ford requires Type F transmission fluid. I have never tried anything else.

Pretty much every major lubricant manufacturer makes Type F. I use Pennzoil because that is what my local parts store carries.

https://www.google.com/search?q=type+f+t...47&bih=475

As far as the freeplay is concerned, the first step is determining where the freeplay exists. I would inspect all the other steering components for wear first before touching the steering box. Pay particular attention to the rag joint.

There is an adjustment on the steering box which can serve to tighten up the feel. However you must be careful making this adjustment because it can lead to gear failure.

If you are sure the problem is in the steering box then a rebuild is the proper way to correct the problem. This gives you an opportunity to change your steering ratio for quicker steering response if you are so inclined.

http://www.7173mustangs.com/thread-proce...ering-gear

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#6
If the previous owner had run the pump low on fluid , I have seen that cause some internal damage , it will usually still work , just not as well and the whining noise to boot. Is this a new problem or has it always made noise ?

[Image: 1_11_01_14_4_00_47.jpeg]
460 , Edelbrock Performer carb. + intake , 204 / 214 cam , Pertronix Flamethrower 2 billet dizzy + coil , Crites long tubes , C6 .









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#7
do not use power steering fluid in 71-73 pumps. use type F trans fluid,,, pretty much any good quality type F will do.

if you did use power steering fluid it will be a HUGE mess to clean out the pump and steering box of as much fluid as you can get out of it.

Now if the pump still doesn't work it could have internal damage. in that case you would need to swap pumps to see if the pump is the cause.
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#8
72HCODE;161163 Wrote:do not use power steering fluid in 71-73 pumps. use type F trans fluid,,, pretty much any good quality type F will do.

if you did use power steering fluid it will be a HUGE mess to clean out the pump and steering box of as much fluid as you can get out of it.

Now if the pump still doesn't work it could have internal damage. in that case you would need to swap pumps to see if the pump is the cause.

OK - message clear.
I have to check the type of the fluid I used.
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#9
i think the pump has damage internally. but, it can't hurt to try the fluid.

Type F expands more then steering fluid and has a different viscosity, sort of gives the pump impeller more grip for more pressure output. the thing is when cold Type F would react about the same as the power steering fluid, only when hot does the difference occur. so i'm leaning towards internal problems with the pump itself. couldn't hurt to order a new or Re-man Pump and when you pop the hoses to drain the power steering fluid out just swap pumps and call it a day.

later you can pop the old pump open and attempt a rebuild.
what you can do is pop the pump off,, then pop the hose connections on the steering box. jack the front end up so the tires are off the ground slightly then rake the steering wheel back and forth a couple of times that will push the fluid out of the steering box. have a large oil pan under the car to catch it.

after nothing else comes out of the box. wipe the area with a rag so you can re-install the hoses and tighten them down. then hose the area with degreaser, cleaner, soap water, anything to clean all the fluid away to prevent dirt sticking to the fluid and making things really messy over time. work from under the car it will make life easier with the car on jack stands. then just put the pump on and everything together and start to fill the pump up, a little bit at a time. you will need to lower the car to set the fluid level in the pump right. start the motor and rake the steering wheel back and forth a few times to get the fluid to cycle into it and keep filling until the level is right.

Its a mess really no way around it.
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#10
72HCODE;161213 Wrote:i think the pump has damage internally. but, it can't hurt to try the fluid.

Type F expands more then steering fluid and has a different viscosity, sort of gives the pump impeller more grip for more pressure output. the thing is when cold Type F would react about the same as the power steering fluid, only when hot does the difference occur. so i'm leaning towards internal problems with the pump itself. couldn't hurt to order a new or Re-man Pump and when you pop the hoses to drain the power steering fluid out just swap pumps and call it a day.

later you can pop the old pump open and attempt a rebuild.
what you can do is pop the pump off,, then pop the hose connections on the steering box. jack the front end up so the tires are off the ground slightly then rake the steering wheel back and forth a couple of times that will push the fluid out of the steering box. have a large oil pan under the car to catch it.

after nothing else comes out of the box. wipe the area with a rag so you can re-install the hoses and tighten them down. then hose the area with degreaser, cleaner, soap water, anything to clean all the fluid away to prevent dirt sticking to the fluid and making things really messy over time. work from under the car it will make life easier with the car on jack stands. then just put the pump on and everything together and start to fill the pump up, a little bit at a time. you will need to lower the car to set the fluid level in the pump right. start the motor and rake the steering wheel back and forth a few times to get the fluid to cycle into it and keep filling until the level is right.

Its a mess really no way around it.

Thanks a lot of this advice.
I did not find the documents / bottle of the fluid I used so I have to change it. Local dealer has steering fluid make "Red Line" and it is comparable to Ford F type fluids - however is a modern formula with even superior characteristics than the original F type.
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