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Topic: Steering pump replacement

in Forum: C3 Engines, Driveline and Handling


Steering pump replacement

Posted: 10/4/05 5:44am Message 1 of 9
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Gilbert, AZ - USA
Joined: 4/26/2004
Posts: 108
Vette(s): 1976 Stingray Coupe

Here I go again another question !!!!

 

I have to replace my steering pump and this means the core has to be returned, but before i do it and to make my car steer i need to remove the old pulley from the old pump, so far i have broken one wrench trying to remove the hex bolt from the middle of the pulley and it has got me wondering is it a left hand thread and has anyone out there successfully removed their pump pulley, do i have to use heat or should i just give up and buy a new pulley ?

Any help would be greatly received.

 

Thanks

 




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Steering pump replacement

Posted: 10/4/05 6:30pm Message 2 of 9
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Your pump has a nut holding the pully on?
I think the pullies are press-fit on these pumps, but perhaps yours has been changed before?
If it does actually have a retaining nut, an impact wrench is the way to go to get the nut off. It will be a regular right-hand thread.
Does the center of the shaft have a female, hex fitting? Like something you would put an "Allen" wrench in, or is it threaded? I think the pulley is a pressed on set-up, and you might need a puller to get if off. Maybe I'm cornfused!(who...ME?!) Adams' Apple38629.7867824074


Joel Adams
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Steering pump replacement

Posted: 10/4/05 6:36pm Message 3 of 9
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
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Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

No, Joel, it's not you .

The bolt is only for INSTALLING the pully.  Once in place, there is no need of the bolt, and in fact it should not be there.

The pully is pressed on.  A special puller is required to remove the pully.  You can rent one from AutoZone or similar parts store.  It's fairly easy to do.  Installing the new pully can be done with the tool, if it's a full puller set.  Or just lube the install bolt and washer and tighten it down until the surface of the pully is flush with the surface of the shaft.  Then remove the bolt.  If you don't lube the bolt first, it can bind and cause difficulty installing the pully.




Steering pump replacement

Posted: 10/4/05 6:55pm Message 4 of 9
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20226
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Wheeew! Thanx, Ken! I guess I can take the funny white jacket off, now?


Joel Adams
C3VR Lifetime Member #56    

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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Steering pump replacement

Posted: 10/4/05 8:17pm Message 5 of 9
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I remember pre 75 pumps having a tapered shaft and using a lock nut?? 75 up are the pressed fit that require the puller. Perhaps jagvette already had the pump replaced once already.   Mike


Steering pump replacement

Posted: 10/4/05 8:46pm Message 6 of 9
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Gilbert, AZ - USA
Joined: 4/26/2004
Posts: 108
Vette(s): 1976 Stingray Coupe

HHHMMMMM

 a lot of interesting input, i guess it may well have been replaced in the past, i have a three leg puller(now now no dirty thoughts !) which i am sure is up to th task, but i assumed (maybe wrongly) that the Hex/Allen bolt has to be removed first ???

 

 

Help




Steering pump replacement

Posted: 10/4/05 9:20pm Message 7 of 9
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If it IS the tapered shaft, after you get the nut off just whack the pully with a wood block, it should break free. At least try the wood before getting out the hammer!  The pressed on pulley just has a "boss" on the pulley at the shaft that the special puller grabs hold of. No nut at all.   Mike


Steering pump replacement

Posted: 10/5/05 6:11pm Message 8 of 9
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CUYAHOGA FALLS, OH - USA
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Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

I'm guessing if you look very close at that Allen, you may see that it's actually part of the shaft, and not really a nut at all.  Some of them had this style.  The allen was to help when working on the pump itself, not just a replacement.

Joel, you are an automotive pro, who does it for a living, just like myself.  This means we BOTH NEED THE WHITE COATS!!!!!!  We gotta be nuts to stay in this business!!   




Steering pump replacement

Posted: 10/6/05 9:19am Message 9 of 9
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Gilbert, AZ - USA
Joined: 4/26/2004
Posts: 108
Vette(s): 1976 Stingray Coupe

Thank you Thank you thank you,

As usual you guys are amazing and without your input it would have taken me a lot longer to figure it out, the Hex/Allen socket i was looking at was part of the shaft, which would explain why i couldn't undo it and why i broke a wrench trying !!!, of course the workshop manual didn't help me there, I took your advice KSTYER and went to my local Autozone and rented the puller etc (Free) once i had the puller it took me all of 2 minutes to get it off and it only took that long because i needed to have a beer break half way through.

Once again THANK YOU (especially KYSTER) you are restoring my faith in mechanics (well almost)

I can see next problem will have to be harder you guys are getting too good !!!!

Gary




in Forum: C3 Engines, Driveline and Handling


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