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meeni
PostPosted: Thu Sep 10, 2015 5:10 pm 
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Just a quick one, I've got a set of yellow urethane bushes for my lower control arms and they don't have a metal insert in them. Do I need one or do they just run on the pin as is?

Cheers

Sean

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michaelb
PostPosted: Thu Sep 10, 2015 5:30 pm 
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I think most urethane/nolathane bushes are a neat fit on the shaft without any inside metal inserts.
Mine are.

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meeni
PostPosted: Thu Sep 10, 2015 6:14 pm 
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Cool yeah they're snug so il leave them as they are! Cheers!

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drmini in aust
PostPosted: Thu Sep 10, 2015 10:23 pm 
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Most urethane bushes come with grease. Don't run them dry..!

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awdmoke
PostPosted: Fri Sep 11, 2015 9:11 am 
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Yeah those are snug fit with LOTS of the white grease.
Rubber gloves time!

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mini_mad_matt
PostPosted: Fri Sep 11, 2015 5:40 pm 
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The last few Nolothane branded bushes that i have fitted to cars (not minis) have been supplied with their own packets of grease which actually say it's molybdenum disulfide.

So i suppose that stuff is fine for the bushes too.
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drmini in aust
PostPosted: Fri Sep 11, 2015 9:59 pm 
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Regular lithium chassis grease is OK too.

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Phil 850
PostPosted: Fri Sep 18, 2015 8:49 pm 
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I'm surprised you have to Grease the bushes.
The elastomer is there for NVH and to eliminate "sliding surfaces" so you eliminate wear and reduce maintenance by not having to grease them.
In good design, all of the suspension movement should be taken Within the Elastomer :wink: , not by having the elastomer sliding on the suspension elements. :shock:

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drmini in aust
PostPosted: Fri Sep 18, 2015 9:00 pm 
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Lurethane has its uses and is oil resistant, but...
If you try and make lurethane tight like a `live rubber bush', it tears up.
In a previous life (tooling engineer) I had a lot of experience with lurethane used in press tooling, for metal forming.

The other problem with lurethane inner bottom bushes is they flow and deform with stress.
That's why I and others still use original bushes, for road use.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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