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1971 Ambassador Rear Wheel Spider Cracks

GKnight

GKnight

Just got it firing!
GT Contributor
Joined
Jun 19, 2022
Messages
7
Location
Harpswell Maine
I am "preserving" a 1971 Ambassador - kind of a barn find with 35,000 miles. I just removed the rear wheel to clean and check the brake shoes. There are some spider cracks that start from the spoke flange. They do not go thru to the brake shoe side - see picture. Is this normal for this vintage Ambassador?
Thanks in advance 1D44EECD 871E 4F77 B5AA DE506D404DCE C5CEFEEA 6A83 4702 89AE 5AAE7CC0275E for your input.
 
Hard to tell from the pictures if those are cracks or casting imperfections. Do you have access to a machine shop that can check the casting? Also If it needs to be replaced I may have one in my parts stash.
 
I’m leaning like John here. They do look like casting imperfections.

If you have a piece of Emory tape, I would rub right over one of those long lines and check it. If it is just surface casting imperfection, it will disappear and if it is indeed spider cracks, they will become more visible.

Amboman (Charlie) will know for sure as this is what he does at his shop, Antietam Classic Cycle.

antietamclassiccycle.com
 
Thanks for your reply John. I can try to polish out the lines. If they do not disappear, I will contact you to talk about a replacement.
Amboman said:
Casting flash. I freaked out the first time I saw them, and had a machine check the hub for cracks - none found.
Click to expand...
I freaked out as well! Didn't know what I was dealing with on this wheel.
You are exactly correct. I spent a little time to polish out the lines. It looks like the casting imperfections disappeared.
I really appreciate your input - saved a lot of time and aggravation.
97556D7E 89AA 4057 8606 F58971FA29EF
 
scottmastrocinque said:
I’m leaning like John here. They do look like casting imperfections.

If you have a piece of Emory tape, I would rub right over one of those long lines and check it. If it is just surface casting imperfection, it will disappear and if it is indeed spider cracks, they will become more visible.

Amboman (Charlie) will know for sure as this is what he does at his shop, Antietam Classic Cycle.

antietamclassiccycle.com
Click to expand...
Thanks for your reply and advice. Turned out to be casting imperfections. Polished most of them away.
 
john zibell said:
Hard to tell from the pictures if those are cracks or casting imperfections. Do you have access to a machine shop that can check the casting? Also If it needs to be replaced I may have one in my parts stash.
Click to expand...
Thanks for your help. Turned out to be casting imperfections.
 
GKnight said:
Thanks for your reply and advice. Turned out to be casting imperfections. Polished most of them away.
Click to expand...

My pleasure. You are most welcome.

I'm very happy Charlie popped in to confirm what John and I suspected. Charlie is the reigning "Go To Guy" for these older ones. Restoration of them is his business.
 
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