Strut bushings on 66 dart SHREDDED

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gdizzle

gdizzle

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Sorry no pics car is at the shop, but 4 weeks ago I completed a complete front end rebuild, all new rubbers. The strut rod bushins are the K7040 moog, big silver cupped washer sandwiches the big rubber bushing. I just looked under there and both front bushings are completely shredded, the big washer is almost touching the frame.
So what is the deal? I know I faced the washers with cup crunching the rubber, unlike some people I see that put the washer backwards? Is that right? Also these K7040 were in a very old box marked 1990. I paid $10 for the set.

Any ideas? I didn't think rubber ever got old, after all it never fully breaksdown in the land fills or so I'm told.
 
Rubber does get old. It deteriorates over time, just like my memory. If those bushings were 26 years old, I'm not surprised they broke apart under the suspension load.
 
probably dry rubber. i switched to poly on my 66 dart, haven't driven yet, so in 10 years when i finally get it done and the poly goes bad, i will be complaining about the same issue!
 
ozone attacks rubber, does different things to it but mostly rots it. Also the cupped washers should wrap around the rubber bushings, not cut into them.
 
Imo these are the ones to use.
s-l225.jpg

Like Ma Mopar used as original.
 
gdizzle said:
Sorry no pics car is at the shop, but 4 weeks ago I completed a complete front end rebuild, all new rubbers. The strut rod bushins are the K7040 moog, big silver cupped washer sandwiches the big rubber bushing. I just looked under there and both front bushings are completely shredded, the big washer is almost touching the frame.
So what is the deal? I know I faced the washers with cup crunching the rubber, unlike some people I see that put the washer backwards? Is that right? Also these K7040 were in a very old box marked 1990. I paid $10 for the set.

Any ideas? I didn't think rubber ever got old, after all it never fully breaksdown in the land fills or so I'm told.
Click to expand...

I believe the cupped part of the washer faces forward, away from the bushing and the frame. Could be wrong, but that allows movement of the rubber, without the washer coming into contact with the frame ?? Similar to this picture I found online.
upload_2016-8-30_16-0-54.jpeg

Ken
 
Good pics. I think what has happened, somewhere along the line someone welded in a large metal washer over the big holes, and turned it into small holes. Thus making it impossible to use the OEM version. What I hate is the only way to get the bushings off is farting around with LCA and torsion bar, nightmare /.. Maybe since I just had all that stuff off, it wont need that much banging.
 
ken5124 said:
I believe the cupped part of the washer faces forward, away from the bushing and the frame. Could be wrong, but that allows movement of the rubber, without the washer coming into contact with the frame ?? Similar to this picture I found online.
View attachment 1714963738
Ken
Click to expand...

This is correct. So you bought old bushings that were on the way to deteriorated and put the washers on backwards. Sounds to me like you were tryin real hard for a bad outcome.
 
gdizzle said:
Good pics. I think what has happened, somewhere along the line someone welded in a large metal washer over the big holes, and turned it into small holes. Thus making it impossible to use the OEM version. What I hate is the only way to get the bushings off is farting around with LCA and torsion bar, nightmare /.. Maybe since I just had all that stuff off, it wont need that much banging.
Click to expand...
The washers may have been welded on to repair a damaged hole. If the car is driven with bad bushings the rod drops down and rubs on the k frame. I've repaired k members with washers and never had issues with bushings falling apart.
 
Referring to the pic in post #6... If that washer position is correct, Is the nut position not wrong ?
Seems to me that the beveled face of the nut would meet the washers bevel.
My personal belief is, These cupped washers are oriented just like those on shock absorbers ( Capture the rubber rather than expand it ). Same mechanical concept on a larger scale. So referring to the pic, that washer position is wrong and the nut position is correct.
Yes this assembly has been hashed over in several threads before.
 
RedFish said:
Referring to the pic in post #6... If that washer position is correct, Is the nut position not wrong ?
Seems to me that the beveled face of the nut would meet the washers bevel.
My personal belief is, These cupped washers are oriented just like those on shock absorbers ( Capture the rubber rather than expand it ). Same mechanical concept on a larger scale. So referring to the pic, that washer position is wrong and the nut position is correct.
Yes this assembly has been hashed over in several threads before.
Click to expand...
Nut is correct,. Every Moog kit I've bought has the washer orientation stamped on it.
https://static.summitracing.com/global/images/prod/xlarge/mog-k7040_xl.jpg?rep=False
 
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