Yep! I have finally replaced PS pump. I've installed PS pump from Chevy Suburban '86. It was 10K only. My friend installed Mercedes OM904 engine in it and the original PS pump does not fit this engine. CHevy's pump has good perfomance and it is easier to turn the steering wheel.

I had to make a new pulley, drill new holes in retainer, to get a new belt.

Hoses fit this pump well.

Tommorow I'll post photos.

One quation! How many $$ were saved....? I got this pump for $20.

 

The PS pump of Chevy in aero

 

PS pump


The other view

Drilling new holes

 

Exploded view..... Geeeee.....

Worn parts...



As result, the steering wheel is so easy to rotate, that it was unusually difficult to keep staritght when I started driving with new PS pump....

 

... i did it in 1 weekend..... 5 hours job....

 

Pablo:

You are one resourceful man

Does this get rid of the PS whine that's so ..... FORD?

 

pablo,
nice job....looks just like one of the ps pumps off one of my old Chebby pickups
i could crank the tire off the rim on a 3/4T Chebby in a mud hole or rock bound.....

that new GM Saginaw pump will walk right thru the peunny weak tie rods on an Aero

run only Dextron/Mercon rated ATF in the new Chebby pump....they don't like the old Ford F type ATF

you call always tell a good mechanic/machinist, they have grease under the finger nails and skin cuts from turnings

http://www.classicperform.com/TechBook/PowerSteeringTechTips.htm

Pressure Reduction
It is commonly thought that a GM/Saginaw style pump will not mate well with a Ford rack. In fact Ford uses Saginaw pumps on some rack & pinion equipped vehicles. Most all passenger car steering systems utilize pressure between 1000 and 1200 PSI. Classic Performance Products recommends the following procedures when building your specialty vehicle:
1. Initially, utilize stock pressures on the power steering pump.
2 Caster setting should be between 4-6 degrees positive.
3. After a few test drives, reduce pump pressure ONLY when the vehicle has too much power steering assist at a parallel park situation.


Lowering pump pressure reduces assist at all speeds and power steering is needed most at low speeds. The high positive caster setting will tend to tone down the effects of power steering at high speeds and will give the vehicle good returnability from a turn. A pressure reduction kit can be purchased from Classic Performance Products that will reduce pressure on all FM style pumps.

 

You can also change the seal without removing the pulley. remove the reservoir and the back end of the shaft has a clip that is easily removable and the shaft pulls out of the pump from the front and installs just as easily after the new seal is installed. These are bulletproof pumps that are nice and quiet.

Ken

 

You are a good exzample of a true mechanic. A mechanic solves the problem by fixing it

 

Yup, that would definately fix the problem. Many Ford owners probably consider this to be an act of blasphemy, but I say, if it works, great!!!. Pity those Ford engineers didn't think of it first.

 

A lot of Fords used to use Saginaw Steering gears and pumps. It was like some non-Fords using glass made by LOF; they sold parts to each other. The old Saginaw pumps were heavy and powerful, and allowed you to steer very large vehicles with just your pinky. With them, whining was a sign of failure, not normal operation like Ford's new plastic pumps.

If you ever ran a late model Mustang through a slalom course, you quickly learned that its power steering pump was inadequate for that rate of power assist. You would probably not ever drive your Aerostar that way, but I would guess that its PS pump is not sufficient for that kind of use.

So I've been thinking of replacing the stock pump on my Mustang with one of the older versions that have more capacity, and I may have to make adapter plates to mount it. Pablo's postings have inspired me. The tricky part would be to replace the pulley with something that will take the serpentine belt.

 

Well.... The steering power is good, more, then I need, but I dont want to reduce the pressure....

 

Most of the Ford Econoline vans (1/2 ton, 3/4 ton, and 1-ton) have the Saginaw pumps. With most vehicles its a matter of modifying the bracket (drilling/grinding) ensuring you have the high pressure hose and for v-belt applications getting a longer belt. I just bought one from the yard from a 84 Ford Econoline for $28. It will cost me another $12.00 for the high pressure hose. The only thing I anticipate is grinding my current bracket to accomdate a longer sweep for the adjusting bolt. For the total cost it is well worth it. Nice work Pablo!