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My 7 getting a mild makeover


Oyagi

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Oyagi:

 

Suspension bushings? Remind your mechanic to lube the insides-otherwise you get; squeak, squeak, squeak, as I found out last year when I had all my bushings replaced.

 

Mike

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OK, got her home tonight and had a chance to take better pics:

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs314.snc4/41059_474533666223_690446223_6946163_1567030_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs305.snc4/40580_474533716223_690446223_6946164_6787772_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs145.ash2/40580_474533721223_690446223_6946165_605353_n.jpg

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Suspension bushings? Remind your mechanic to lube the insides-otherwise you get; squeak, squeak, squeak, as I found out last year when I had all my bushings replaced.

 

I hope you are only referring to the outer front trunions or ball joints. Standard Caterham suspension bushings are metalastic flexures and not rotating bearings. Oil or grease will destroy them.

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I've done polyurethane bushings on a number of cars. They can squeak nasty.

 

Energy Suspension has their own lube which is very thick, really sticky, and slightly translucent. You can probably get it through your local speed shop or auto parts store. I've found a similar synthetic grease called Super Lube which has worked ok.

 

I've also used Moly Slip, a grease high in molybdenum sulfide with success.

 

I have also use Never-Seize in a pinch.

 

Most polyurethane bushings will need disassembly and re-lubing every so often. More so in wet weather.

 

Rubber bushings theoretically should not squeak. But if they do, try some of the lubricants above.

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The bushings surrounding the front and rear ARB can squeak as the bar turns inside them. The bushes in the bogo Spax and Bilstien shocks can also squeak. Ruglyde is a kind of soapy crap that works well to quench the squeaks. Don't use any grease or oil as petroleum products like to eat rubber.

 

The Metalastic bushings are two bits of steel that are bonded together with rubber. The inner bit is clamped firmly to the chassis and the outer bit is pressed into the wishbone. When the wishbone moves, it actually stretches the rubber in a rotary shearing action to allow movement. Technically it adds a bit of spring rate to your suspension. That's why it's suggested in the assembly guide, that the chassis be lowered off the jack stands before nipping up the suspension bolts.

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