I need a tool screws threat size which is used for pull and installing power steering pump pulley for 1997 zj grand cherokee

same as all cars mostly
ever youtube that>? see 100s doing that
this is covered in the FSM step by step
or online, same at alldata.com or free
here
The Jeep ZJ it is
click ZJ
click steering opt "BINGO"
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service


posted 100s of times here, more really. ever search?

should b bolted

if pump is leaking need to buy new pump. Just normal hand tools for changing pump. You will need to rent tool to remove and install pulley on pump

1997 JEEP GRAND CHEROKEE - V8 5.2L 318ci GAS FI N Y
Usually the label diagram is underhood, over radiator/grille...





If you need more details about youe Jeep ZJ Grand Cherokee, can check this documents about Repair Manual: Grand Cherokee 1993-1998 FSM

To get out, it's easy and doesn't require a prybar.

• Get a 14mm or 9/16" socket and a long handled ratchet or breaker bar.
• Get the belt around all the pulleys except the A/C compressor or Alternator.
• The tensioner pulley is near the Alternator toward the center of the engine. It's on a spring loaded arm. Get your socket on the center nut of this pulley.
• Slowly pull the ratchet toward the center of the engine. The pulley will pivot on the arm allowing you to get the belt on the final pulley.
  
• Slowly release the tension.
  
• You're done

Hope helps (remember to rate this answer).

when you but a aftermarket power steering pump the only thing you get is the pump so make sure you take off & keep your pulley & reservoir BUT you can buy the pump with the reservoir but you still need your pulley & dip stick...

you need a speacial tool too remove or install power steering pully on the pump . about 100$ you could probly rent one from your local parts store

I see this is a two part question...
In replacing the alternator, there is no reason at all to be messing with the pulley on the power steering. That pulley is pressed on and though you could remove it with a puller it is far more difficult to re-install without the proper tools. (it is not hammered on). Power steering pulleys don't just fall off. They are so tightly pressed onto the shaft that they don't even require a retaining bolt to hold them on.
Without the benefit of being able to examine it myself, I'd have to guess that either you originally had a mis-match of pulley to pulley shaft and the pulley was sliding on the shaft (so remote a concept that you may be hit by a meteorite if you buy that) Or someone removed it for an unknown reason and did not properly re-install it.

there should be threads in the pump shaft

For the Power Steering Pump, refer to the 1995 ZJ Service Manual (Section-19-Steering / page 9 and next)

Hope helped with this (remember rated this help) Good luck.

I don't have chrysler producs. I'll post 3.8L V6 Ford Windstar for reference. You'll get some idea.



Removal
WARNING: USE CAUTION WHEN REMOVING OR INSTALLING DRIVE BELT TO MAKE SURE THAT TOOL DOES NOT SLIP.

1. Using a 15mm socket or wrench on bolt attaching drive belt tensioner pulley. Rotate drive belt tensioner (6B209) clockwise to remove drive belt from pulleys.
   
   3.8L Engine
   
   

Item Part Number Description 1 10300 Generator 2 3A674 Power Steering Pump 3 19703 A/C Compressor 4 6B217 Drive Belt Tensioner Pulley 5 6312 Crankshaft Pulley 6 8501 Water Pump 7 6B209 Drive Belt Tensioner 8 8620 Drive Belt
Installation

1. Install drive belt over all pulleys (except drive belt tensioner ).

1. Rotate drive belt tensioner as described under Removal and install drive belt over drive belt tensioner pulley. Ensure that all V-grooves make proper contact with pulleys

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Another example
Pulley, Power Steering Pump CII
SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Steering Pump Pulley Remover T69L-10300-B Steering Pump Pulley Replacer T65P-3A733-C
Removal

1. Drain as much fluid as possible from the power steering pump (3A674) through the power steering oil reservoir (3A697) neck.

1. Install Steering Pump Pulley Remover T69L-10300-B on the power steering pump pulley (3A733) , and place the tool and power steering pump in a vise by gripping the small hex-head of the tool.

1. Hold the power steering pump , and rotate the tool nut counterclockwise to remove the power steering pump pulley . Do not apply in and out pressure on the power steering pump shaft. Pressure will damage the internal thrust areas.
   
   

Installation
CAUTION: Do not apply in and out pressure on the shaft. Pressure will damage the internal thrust areas.

1. Place the power steering pump pulley on the power steering pump shaft, and install Steering Pump Pulley Replacer T65P-3A733-C. The small diameter threads on the tool should be fully engaged in the power steering pump shaft.

1. Hold the power steering pump , and rotate the tool nut clockwise to install the power steering pump pulley on the shaft. The power steering pump pulley face must be flush within 0.25mm (0.010 inch) of the end of the power steering pump shaft.

1. Remove the tool.

1. Fill the power steering oil reservoir to the COLD FILL line.

------------------------------------------------------------------------------------------
Steering Pump, Power Removal

1. Disconnect battery ground cable (14301) .

1. Remove accessory drive belt (8620) .

1. Raise vehicle on hoist. Refer to Section 00-02 .

1. Remove right front wheel (1007) and tire assembly.

1. Remove power steering pump pulley (3A733) .

1. Position drain pan. Remove power steering pressure hose (3A719) and power steering return hose (3A713) from power steering pump (3A674) .

1. Remove four power steering pump retaining bolts (three in front, one in rear) and remove power steering pump .

Installation

1. Position power steering pump and install retaining bolts. Tighten retaining bolts to 41-54 Nm (30-40 lb-ft).

1. Install power steering pressure hose and power steering return hose to power steering pump . Remove drain pan.

1. Press on power steering pump pulley as outlined in this section.

1. Install right front wheel and tire assembly. Tighten lug nuts (1012) to 115-142 Nm (85-105 lb-ft).

1. Lower vehicle.

1. Install drive belt to power steering pump pulley .

1. Connect battery ground cable .

1. Fill power steering oil reservoir (3A697) to proper level. Refer to Section 11-00 .
   
   Power Steering Pump and Bracket, 3.8L
   
   

Item Part Number Description 1 N607528-S2 Screw, M6-1 x 16 2 8509 Water Pump Pulley 3 W804804-S2 Screw, M8-1.25 x 35 4 N806214-S2 Bolt, M12 5 W606691-S36B Screw, M8-1.25 x 35 6 10B315 Generator Brace 7 N621939-S36B Nut, M8-1.0 8 10300 Generator 9 6B212 Accessory Drive Belt Tensioner Bracket 10 6049 Cylinder Head 11 19D624 Air Conditioning Compressor Bracket 12 W606563-S2 Bolt, M10-1.5 x 55 13 19703 A/C Compressor 14 N807273-S100 Bolt, M8-1.25 x 121.5 15 3C510 Power Steering Hose Bracket 16 3A674 Power Steering Pump 17 3C511 Power Steering Pump Support 18 W807239-S8 Bolt, M10-1.5 x 36.5 19 2888 A/C Compressor Brace 20 W806342-S2 Bolt, M8-1.25 x 23 21 W606571-S411 Bolt, M10-1.5 x 113.5 22 6C348 Idler Assembly 23 3A733 Power Steering Pump Pulley 24 N805137-S56 Bolt, M10-1.5 x 157 25 N621939-S2 Nut, M8-10 26 N807241-S36B Bolt, M10-1.5 x 132 27 6B209 Drive Belt Tensioner A — Tighten to 8-11 Nm (71-101 Lb-In) B — Tighten to 20-25 Nm (15-18 Lb-Ft) C — Tighten to 70-95 Nm (52-70 Lb-Ft) D — Tighten to 40-55 Nm (30-40 Lb-Ft) E — Press Flush with End of Power Steering Pump Shaft