olespanky

Oka so I have my swap almost done just needing some info I have a 02 vette ps pump and I need threadpattern and demunsions and length to get it onto my 71s grearbox
Any help would be great

jwcarguy

iTrader: (76)

check with Earl's or Russell for example, they offer the correct metric o-ringed adapter fittings that fit the newer style pumps

bczee

iTrader: (12)

can you give a better description of what your trying to do ? "onto my 71ish gear box"

Are you trying to adapt or make hose and fitting to connect the PS pump to your 71 Steering Box ? or are trying to mount the 02 Vette Pump to your engine ?

I think you want adapter to the box and pump ?.. if so. the high side pump is a O-ring 16mmx1.5mm thread. The Steering box uses Invert Flares.
Pressure fitting is 11/16-18 inv. fl.
Return fitting is 5/8-18 inv. fl.
As stated Earl's and Russell both have Inverted Flare to AN fittings and the O-Ring to AN adapter, which is what I have used with Fittings and Teflon Lined SS Braided hose.

The return is usually a tricky setup. .as the OEM Plastic Resorvior only has a 3/8" Barb inlet. Not many way to adapter to anything other than a PS Rated Hose and Clamp.

BC

monteboy84

The return line is low pressure, so you can just use a push-lock fitting and hose, then put a hose clamp on it at the reservoir. If you have an old hose from your car, just cut through the rubber hose section to a length that will work with your new pump, then all you'll have to worry about is the pressure hose.

As stated, buy AN adapter fittings for the steering box, and the pump as well. This one from DSE helps a bunch with fitting the hose onto the pump, since adding an adapter into the stock pump fitting will usually cause interference with the pulley.
http://www.detroitspeed.com/products...tlt-fttng.html



-matt

Chicago TDP

iTrader: (3)

You might encure what happened to me...the power steering pump made so much pressure, the steering of the car was SUPER jumpy...almost scary to drive cause if you twicked, the car was headed for the ditch or on coming traffic.

There is a new adapter made for AN line that has a small orifice to lower the flow/pressure.
I would recommend that if you are going to AN.

monteboy84

That's possible, but a line orifice is the wrong way to 'fix' it. If you have too much assist, you need to adjust the relief spring in the pump.
http://www.borgeson.com/xcart/catalo...it-p-1684.html

-matt

olespanky

Well I would like to go an fittings does anyone have a link to all the fittings I would need

Chicago TDP

iTrader: (3)

I did end up doing both simultaneously...I figured if the VOLUME was too much as well seeing as the flow rate might be too high, I would also restrict the flow with a small orifice fitting.

But yes, changing the max pressure is also something that needs to be considered.

monteboy84

I don't think they're a sponsor here so I don't want to link it, but I bought mine from Speedway Motors. They list them on ebay too if you prefer to go that route. I'm sure one of the forum sponsors probably has them too, I just don't know who that would be. You will need to do some research to determine exactly which fittings your steering box will require, but from there it should be pretty easy. For the pressure hose, you can either buy braided teflon pressure hose and fittings to do it yourself, or find a local hydraulic hose builder to put one together for you. The hydraulic hose route would be the cheaper way to go if you can find someone nearby.

-matt

monteboy84

That makes sense. Did you use a bypass to return the excess fluid to the reservoir, or just an orifice? I'm concerned that using a restrictor without a bypass will cause too much pressure in the line and create an unsafe condition. Heidt's make this one that dumps the excess into your return line.
http://www.summitracing.com/parts/hdt-ps-101


-matt