Control Arm Bushings
Thread Starter
Racer
Joined: Apr 2005
Posts: 308
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From: New Orleans LA
Zerk Fitting
I have the ES poly kit. Doing searches on this and other forums I see posts about it but no pictures or coments on the end results. Any input would be greatly appreciaied.
mike
mike
Race Director
Joined: Jun 2004
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From: WI
Have you tried rotating them? I've found the grease doesn't last long. There have been pix in the race section with zerks but I didn't save any. Put them in a place you can get the grease gun fitting on easily.
Race Director
Joined: Jan 2005
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From: Slidell Louisiana
However, I'll probably be upgrading the front bushing to something more performance oriented soon. (the spherical rod ends in the rear have opened my eyes to how good a C4 suspension can be)
Mike
Melting Slicks
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Race Director
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From: Slidell Louisiana
Melting Slicks
Joined: Mar 2008
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From: Delta B.C. Canada
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Unfortunately, there is no way to to inject grease between the inner sleeve and bushing. All you can do it lube it well during assembly. The grease fittings just provide one more little thing you can do to try and prevent/fix a squeak.
Race Director
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From: WI
Melting Slicks
Joined: Mar 2008
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From: Delta B.C. Canada
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but as soon as the bushing turns a fraction of an inch, the hole won't line up with the grease fitting. You'd have to machine a more significant groove on the inside of the control arm to allow the grease to travel around and into the hole. I'd be afraid of affecting the strength of the arm doing that.
But more importantly, I can now ask unwary bystanders if they want to see my zerx.
But more importantly, I can now ask unwary bystanders if they want to see my zerx.
Race Director
Joined: Jun 2004
Posts: 13,974
Likes: 710
From: WI
but as soon as the bushing turns a fraction of an inch, the hole won't line up with the grease fitting. You'd have to machine a more significant groove on the inside of the control arm to allow the grease to travel around and into the hole. I'd be afraid of affecting the strength of the arm doing that.
But more importantly, I can now ask unwary bystanders if they want to see my zerx.
But more importantly, I can now ask unwary bystanders if they want to see my zerx.
Melting Slicks
Joined: Mar 2008
Posts: 2,351
Likes: 222
From: Delta B.C. Canada
2023 C7 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (appearance mods)
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Yes, I did a shallow groove around the inside circumference which starts and finishes at the grease hole, so the bushing can rotate all it wants. Enough grease would enter the groove and spread out to deal with any future squeaking issues between the bushing and the control arm. If a squeak develops between the inner sleeve and the bushing, that's another matter. Unless someone can suggest another solution, I expect that removal and re-greasing of the sleeve would be required.
Pro
Joined: Sep 2004
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From: Guntersville Alabama
93cruiser
Race Director
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From: Slidell Louisiana
But you are greasing the surface that is not supposed to move....