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Steering columm bearing kit

PostPosted: Fri Mar 13, 2015 8:59 pm
by Greybeard
I just found the lower steering columm bearing is totally gone on my Vega. I did a search here and didn't find a discussion about it.
Tried ebay search and a zero. Where can I find the parts to rebuild it? Or?
Thanks
Mike

Re: Steering columm bearing kit

PostPosted: Fri Mar 13, 2015 10:14 pm
by Smiley
My 73 has no actual lower bearing, only a plastic bushing.
I believe the upper is the same as a 65 to 79 Corvette.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 7:09 am
by Monza Harry
:popcorn: I am watching this thread close as I am planning a column mod and I should do a rebuild while it is all apart and under the "knife" anyway :idea: Please keep us posted on your progress especially how the hunt turns out and then the fit of the parts after that! Thanx Harry

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 12:29 pm
by cjbiagi
Is this power steering or manual steering? I will try to research the GM parts manual and see if I can see anything.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 2:11 pm
by Greybeard
This is a manual box.
It was kind of strange. Got a call, pulled off the road and shut it off. I got kinda agitated during the call and started moving the steering wheel back and forth and I was hearing a clunk. Went oh sheet. Checking it out I found the clunk was in the steering shaft at the columm. Using my cell for inspection, I could see scouring on the shaft were I thought a bearing should be, but nothing at all that looked like a bearing or bushing. The car drives fine, no issues there, but it's a little disconcerting to hear that clunk.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 3:57 pm
by hammerdown7
My column is from a '77 and there is no bearing where the steering shaft exits, just a white plastic insert that does not keep it centered, it's more toward a 10 o'clock position.

Dick

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 4:04 pm
by chevyart
john: you were strangling the wrong person when you tried to strangle the steering wheel. hope all is going well art

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 5:39 pm
by cjbiagi
According to the GM parts book all I see is what Smiley and Dick were referring to, a white plastic bushing. If this is the part you need I should be able to get a NOS one. I am not exactly sure what this bushing does, but it's all I see in the book.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 6:29 pm
by Smiley
The early non-tilt manual steering shaft was a double "d" colapsable shaft, you may be missing the square sheet metal clamp that looks like 2 muffler clamps with 1 straight bolt to tighten it.
That clamp prevents the hollow section of the shaft from being pushed into the column housing in an accident.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 7:41 pm
by Greybeard
Slid the "clamp" down the shaft and took some pics.
image.jpg

image.jpg


As I understand from this conversation, this "bushing" does nothing, and the only bearing is on the upper end of the columm.. Humm?
From the looks of the alignment, I need to raise the columm, and it appears I have 1/2 to 5/8 inch under the dash to do that. The upper bearing is sloppy, so I will need to find one of them. At the same time I can replace the turn signal stuff as it doesn't cancel to the left, and I have to hold it to turn right. Good thing I haven't put a four speed in it yet, cause I don't have that many hands.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 8:17 pm
by Smiley
the white bushing rubs against the square clamp.
Image

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 9:01 pm
by Greybeard
Smiley,
That's where the clamp was before I slid it back to take pictures.
It appears to me I need to get into the top of the columm and sort out the issue with that bearing. I can move the steering wheel up and down more than I think it should do. Then I need to adjust the columm clamp under the dash so the shaft is more centered in that nylon bushing and not laying on it as it is now.
Am I going in the right direction?
Thanks
Mike

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 9:54 pm
by cjbiagi
The parts book does show some type of seal at the end of the bushing, do you see that? Hard to believe there is nothing holding the lower part of the shaft at the firewall.

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 10:17 pm
by Smiley
the top bearing should be pressed and crimped in to the housing and there should be a spring on the upper end of the shaft under the column lock plate.

here is a link to rebuild instructions:

http://coloradok5.com/forums/showthread.php?t=219831

Image

Re: Steering columm bearing kit

PostPosted: Sat Mar 14, 2015 10:34 pm
by gt350fme
Yes, adjust by loosening the 2 nuts holding the steering Columm under the dash, move column around to center the shaft as it inters exits the firewall, no bearing or seal behind that clamp, just center it as best you can, I have seen a centering jig for that in a manual but never seen one in the real.
Loosening the 3 bolts at the firewall where the column goes through can also give some adjustment.


It is strange that there is no seal at the firewall, heat and all can travel right up the columm.