Power Steering Pump

[Bruceynz]

Hi Guys,

Some will have noticed I am playing with a 360 magnum to go into my doba, I am going to run the serpentine belt system as the harmonic dampener has the pulley cast in and I can't change it and B its a better system.

My question, is the power steering pump on a 2001 magnum ok to use with a 1983 power steering gear?

Thanks
Bruce

 

[Aspen500]

I don't foresee any problems. They put out similar pressure and flow. One problem you may have is the high pressure hose. I'd guess the fitting on the Magnum pump is metric and the one on your steering gear is SAE. If so, you'll just need to find the correct adapter for either the pump or gear, depending on which high pressure hose you use.

 

[Bruceynz]

ok, great news! I didn't want to blow the guts out her box! Spent a lot of money on her box! Got the car driving real nice with all the work done and didn't want to undo all that good work. I will need to see how all the lines match up, the pump sits in a little different place so it may or may not be a problem on hose length. I have an old power steering gear box at home and the the pump so I might just need to go to the hydraulic place and see what they can do for me.

 

[80mirada]

The high pressure fitting might be replaceable with the one from your original pump. Many of the Saginaw pumps are the same, they just have different regulator/High pressure fittings.

 

[Bruceynz]

the pump has no lines they have been unscrewed at the pump. Will take a photo tonight after work.

 

[Bruceynz]

Is anyone aware of any off the shelf parts I can buy to make it work?

 

[80mirada]

Looks like it is the same pump. All you should need are the hoses for the Cordoba

 

[Bruceynz]

Here is a photo of the one off the magnum. That's all I have got.

 

[Bruceynz]

Pump cleaned up now!

 

[kkritsilas]

Looks great. Massive improvement in appearance.

 

[Bruceynz]

Sure is, one more valve cover to clean up, the alternator to rebuild as bearings noisy and brushes worn, then might give the timing chain cover another clean up and then everything is set for the front of the motor.

 

[Aspen500]

That is just a standard Saginaw p.s. pump. They're used on both Chrysler and GM products. Only real difference is where the return pipe comes out and then, that's only the reservoir. The actual pump itself is the same.

An idea...........IF the connection at the pump is metric, you may be able to swap the union (big nut that the line screws into, holds the pressure control valve in also) from one to the other. The threads in the pump may still be SAE like your '83 is. If so, simple matter of putting your old one in the Magnum pump and good to go.

 

[Bruceynz]

I have no idea if it is metric of not, what makes you think it is a metric fitting?

 

[BudW]

Chrysler was slowing converting to Metric around that time frame.
What they did is when an item or sub assembly needed to be updated, they converted it to Metric - but not before a sub-assembly needed to be updated/revised.

Most (if not all) Saginaw P/S pumps used on FMJ cars were SAE. All front wheel drive cars were Metric. The P/S pumps looked mostly identical – but bolt threads and line threads were Metric. Magnum engine P/S pumps are all Metric.

I have a brand new Metric P/S pump in my garage and it will fit my F or M body – but only if I use Metric bracket attachment bolts and use my old (SAE) large back of can, high pressure line nut/fitting.

Note: the metal can on your existing P/S pump can be transferred over – so the return nipple will be on correct location (which I would recommend doing).

When your old P/S pump is removed or disconnected – try the pressure hose fitting on back of the Magnum pump. If it fits, great – the existing pump fitting will work. If it doesn’t screw into pump – don’t force it. Just remove the large rear fitting/nut (which you have to remove to change the can), and swap it out with existing P/S pump.

Matter of fact, I might just switch out the can and that fitting at same time – for I can pretty much go to the casino and bet on the Magnum pump fitting being Metric and old fitting being SAE.

NOTE: Metric pumps are stamped “Metric” on them, but generally it’s behind brackets and hard to tell.

The good news is Metric Saginaw P/S pumps will interchange providing you have correct bracket bolts and that fitting. The tin can (which there are many, many versions of the cans), pulley hub and bolt locations are the same.

As far as that goes, you could get a pulley puller/installer, and transfer pulley and brackets from Magnum pump to your existing pump – if one wanted to – but transferring the can is a lot easier.

Note: the P/S can and fitting both have O-rings which I recommend changing the same time can is off. Both seals have a tendency to leak over time, so consider it “leak prevention”.
BudW

 

[Bruceynz]

Can I not just go to the local hydrullic place, get and SAE to Metric adapter (which they said they will have) and get a slightly longer return hose?

 

[BudW]

Can I not just go to the local hydrullic place, get and SAE to Metric adapter (which they said they will have) and get a slightly longer return hose?

You can – absolutely.

Personally, I would save the money and reuse parts you already have.
Changing the adapter O-ring and can O-ring is optional (but recommended).
BudW

 

[Bruceynz]

I am at work, Bud do you think you can look up an exploded view in the book and show me these O rings you are talking about?

 

[Aspen500]

They make a p.s. pump o-ring and seal kit. The o-rings are the ones called seals in the exploded view you posted.

The metric or SAE thing is hit and miss for a few years back then. My '96 Dakota has a 3.9L Magnum V-6 (just a 5.2 with two cylinders chopped off basically) and the cast aluminum accy. bracket is bolted to the engine with SAE fasteners but the bolts that hold everything to it (p.s. pump. A/C compressor, alternator, etc) attach with metric bolts. Front fenders and doors are bolted on with SAE fasteners but the hood is metric. The cab mounting bolts are metric, the bed mounting bolts are SAE. AAAAAAAAAAARRRRRRRRRRRRRRRGGGGGGGGHHHHHHH!

 

[Bruceynz]

Why can't the USA go metric! Its a much simpler system! Got me beat, stuck on 110v for your house power, MPH for your cars, your weird 3.8liter gallon unique to the USA, Fahrenheit for the temperature, but you do have metric money! You guys, I just dunno. What's so hard about saying M12 bolt or 120kmph. But the systems you use works and your car manufactures are good at mixing and matching them

I had to learn imperial to work on USA cars, 40thou plug gap, 9/16th socket, 2inches long, UNC or UNF.....

Also I may have bought this up before, the USA spell words different, you put in Zs where English uses a S, tires = Tyres, Check book = Cheque Book, Colour = Color are just a few off the top of my head, when I write in here I write USA words.

But once again it works and thats all that matters ! I love Mopar if was imperial or metric, the petrol was measures in liters or gallons and if the car had tyres or tires on it I am still happy as a pig in shit

 

[kkritsilas]

Current US cars are metric. The transition between US and metric systems in cars was very drawn out. Some engines, like the Magnum you have, are essentially imperial, with only the external accessories (partially in some cases) having metric fasteners. Internally, they are all imperial. When they were replaced (Gen III Nemo in this case), they were metric throughout.

I have no idea as to some of the US standards. Why an Imperial gallon is 160 oz., while the US gallon is 128 oz. (I know it originates from a US pint being 16 oz., while an Imperial pint is 20 oz.), has never been clearly explained. Mist have something to do with rebelling against the British crown from the days of the American Revolution.