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post #1 of (permalink) Old 05-06-2007, 07:51 PM Thread Starter
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O/T G.M Power Steering Pump

I just dropped a used 4.3 in my 90 chevy 2500 work truck . The donor came out of a 90s-10 blazer.I have to use the p.s. pump off my blown motor. I have all the bolts out except for the one in back of the pump that goes thru the bracket into the head. The pump should move so I can get this bolt or am I just fried at this point. Thanks guys

77 CJ5 Glass body V-8 3SPD
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post #2 of (permalink) Old 05-08-2007, 09:38 PM Thread Starter
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Pulley Bolt

Okay I'm down to the hex head bolt that holds the pulley on.It's an allen and I was wondering if anyone knows if its right hand threads or left hand ? And how to hold the pulley without bending it to get the hex head out? Thanks guys

77 CJ5 Glass body V-8 3SPD
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post #3 of (permalink) Old 05-09-2007, 05:04 AM
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Jeep used a GM pump for years. On those the pulley was a press fit on the shaft. The shaft had a hex recess in the end, but it wasn't a bolt. Deeper inside the hex was a threaded hole, 3/16-18 IIRC, used to install the the pulley.

If your pump is similar, the pulley will have a groove around the outboard end of the hub. You need to get a bearing splitter into that groove to hold the pulley, and then press the shaft out.

To install the pulley, start it onto the shaft by hand. Then screw a bolt with a washer and nut into the end of the shaft. When it bottoms out, tighten the nut to draw the pulley onto the shaft.

You can't just press the pulley on; that will destroy the pump.

EVERYTHING's easy for the guy who doesn't have to do it.
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