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Old 05-06-2006, 11:28 PM
phasmatisnox's Avatar
phasmatisnox phasmatisnox is offline
Crazed engineer
 
Join Date: Feb 2006
Posts: 126
Quote:
Originally Posted by rs899
You don't need anything more elaborate than a rough file or, better yet , one of those "cheese graters" that is made for shaping bondo. If I recall correctly, when you take that mount off the firewall, the aged "ball" part will crumble off and there will be a smaller plastic bushing that the steel shaft pivots on. Simply mix up a suitable sized gob of kitty hair (fibreglass reinforced) bondo and pack it around the bushing. When it is still in a plastic state, file it down to fit the hole in the bracket on the firewall. You may need to do this in two "coats" to get the shape right. It doesn't need to be perfect (it isn't visible) but it needs to be fairly strong.

Rick
Okay. I don't see any reason why it would be hard to make out of plastic on a lathe, I'll try that first, if the rubber bit is intact. However, the whole assembly has fallen off of the firewall- does that indicate that there's a bigger problem, or just that the screws rattled loose?

Just thought I'd update with my solution, an HDPE replacement made on the lathe. It's not perfect, it's generous in all dimensions, and it was annoying to make out of sheet stock, but it works.

Pushed in, normal position http://www.botmedia.vrogy.com/ned/benz/300D_01.JPG
Pulled out to show new bushing. http://www.botmedia.vrogy.com/ned/benz/300D_11.JPG

I am going to put a shaft collar on the end of it to keep it from being pulled out at all. I hope that shaft is 8mm- I just happen to have an 8mm shaft collar.
Turns out that the nylon bushing has an inner lip that is integral to keeping the shaft from being pulled out- when it rotted away, the shaft could easily rattle out.
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Last edited by phasmatisnox; 05-18-2006 at 12:49 AM.
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