Power Steering Box Rebuild-1972 - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 10 (permalink) Old Jul 30th, 17, 12:42 PM Thread Starter
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Ethan
 
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Power Steering Box Rebuild-1972

Couple of questions. Two of the lower bolts snapped off in the housing. They are 7/16-14, correct? I have the Greenfield tap and drill bits for it. Just want to make sure. Finally, I have the case mostly disassembled except for the rack piston and end plug. Problem is, all the ball bearings came out after I removed the worm gear assembly. How can I push the rack piston and end plug out without damaging them? I do have the snap-ring removed as well. What a PITA. Thanks for any help/advice! Ethan

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post #2 of 10 (permalink) Old Jul 30th, 17, 1:27 PM
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Re: Power Steering Box Rebuild-1972

There is an indepth rebuild thread on here, if you search for it. I read it when I was needing to rebuild mine. I specifically remember the bearing issue your referring to.
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post #3 of 10 (permalink) Old Jul 30th, 17, 1:44 PM
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Re: Power Steering Box Rebuild-1972

When you re-install the ball bearings, I believe the ball bearings are different sizes, If I remember????, ( I may be wrong) They go in order of 1-large 1 small 1 large 1 small. Etc.......Mic. the ball bearings to be sure of the size.
I did mine years ago. I do remember when all the ball bearings fell to the cement floor, My Cat almost had a seizure trying to get all of the bouncing and rolling bearings. That was funny.
Bob
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post #4 of 10 (permalink) Old Jul 30th, 17, 4:17 PM Thread Starter
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Ethan
 
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Re: Power Steering Box Rebuild-1972

I found it, but my issue is not installing the ball bearings. It's just removing the rack piston from the case WITHOUT the ball bearings in the piston. I removed the worm gear assembly BEFORE removing the rack piston and end plug.

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post #5 of 10 (permalink) Old Jul 30th, 17, 7:47 PM
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Re: Power Steering Box Rebuild-1972

oops. best deal is push the piston out the bottom using the worm gear. Too late for that now.

mount the box in a vise with the piston end pointing down. reach through the hole in the bulkhead where the worm goes through with whatever long skinny thing you have or can find. tap on it or just push the piston out if you can. no biggie. I used a lug wrench for this once. have a folded up old towel on the floor under it, no good having it land on concrete.

Did I mention you'll have to pull the ball return guide gizmo off first? 7/16" socket for that. It won't fit through the bore.

can you post a link to the article or thread where you found the old how-to? Did I write it? or maybe Philip? TIA
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post #6 of 10 (permalink) Old Jul 30th, 17, 8:34 PM Thread Starter
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Re: Power Steering Box Rebuild-1972

Quote:
Originally Posted by Tom Mobley View Post
oops. best deal is push the piston out the bottom using the worm gear. Too late for that now.

mount the box in a vise with the piston end pointing down. reach through the hole in the bulkhead where the worm goes through with whatever long skinny thing you have or can find. tap on it or just push the piston out if you can. no biggie. I used a lug wrench for this once. have a folded up old towel on the floor under it, no good having it land on concrete.

Did I mention you'll have to pull the ball return guide gizmo off first? 7/16" socket for that. It won't fit through the bore.

can you post a link to the article or thread where you found the old how-to? Did I write it? or maybe Philip? TIA
I don't know if this is the thread he was referring to or not, Tom.

https://www.chevelles.com/forums/35-r...5691676-a.html

Thanks for your help, Tom!

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post #7 of 10 (permalink) Old Jul 31st, 17, 12:20 AM
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Re: Power Steering Box Rebuild-1972

I forgot about that thread from michael j even though I posted in it this year. Still a good write-up.
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post #8 of 10 (permalink) Old Jul 31st, 17, 8:07 AM Thread Starter
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Re: Power Steering Box Rebuild-1972

Got it out! Will post pictures soon. Now, I have to do is remove the last sector shaft seal and bearing. Drill out the old bolts and retap and then it's time for the ultrasonic cleaner.

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post #9 of 10 (permalink) Old Jul 31st, 17, 4:06 PM Thread Starter
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Re: Power Steering Box Rebuild-1972

A before cleaning and after.
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post #10 of 10 (permalink) Old Aug 2nd, 17, 3:36 PM Thread Starter
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Re: Power Steering Box Rebuild-1972

Here is a photo of my homemade spanner wrench. It was two automatic transmission console seal braces, 3-#8-32x3/4" screws, 1 locknut and 2 hexnuts. Cost me $0 and it works GREAT!
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