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#1
5th March 2010, 08:30 AM
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Suspension bushes / tubes.
Hi folks, I am a bit unsure about the suspension bushes and tubes - the crush tubes are 44mm long, the bush tubes with bushes installed are 44mm long and the suspension brackets have a 44mm spacing. This means that when I do up my bolts some of the bushes are effectively clamped by the suspension brackets and make an awful noise when the wishbones move up and down. Am I right in saying that the crush tube should be kind of clamped by the suspension bracket and the bush then is allowed to rotate around the crush tube? Or do I just not tighten them up so much and the crush tube rotates around the bolt? I hope that makes sense. It just seems a bit strange that the crush tubes are not 1-2mm longer than the combined length of the tubes / bushes.
Thanks in advance, Enoch. 
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#3
5th March 2010, 10:31 AM
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For the bush tubes Enoch you need to dog them right up, the poly bushes will then compress slightly and the brackets will clamp the s/s tubes so that the poly bushes rotate around the s/s tubes. They can squeek but if you use copper slip grease on the s/s tubes this will stop this. Some people recommend silicone grease but at nearly £20 a tube its expensive and i have found copper slip to be better.
There should be no play on the joint and be relatively stiff to move by hand, they will soon wear in. Regards....AndyH
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Haynes Roadster / Saturn GRP Bodywork. Now available direct through http://www.gillhamonline.co.uk/ or contact me direct on andrew.hugill@ntlworld.com Regards..........AndyH
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#4
5th March 2010, 10:38 AM
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Tighten them up with the full weight of the car on the arms, not with them in the air.
TT
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You only get a woosh with a dump valve Build Thread Man Cave Mantiques Cecil Street Auto Repairs Garage Carlisle Build Cost £4181.65 - Last - Wheel Cylinders
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#5
5th March 2010, 11:43 AM
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Thank you very much, gentlemen, that's kind of what I thought. On one of mine the suspension bracket is very tight on the bushes rather than the crush tubes. Thanks Spud for the tip on the copper grease, I have some of that so will use it.
Thanks again to all.
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#6
5th March 2010, 05:50 PM
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On a related note, what are the tolerable tolerances of the length of the bush tubes? I don't have a lathe, so I cut them with an agry grinder and then file them down for squareness and length. Now I have several tubes that are 0.5 mm too short. Should I bin them or use them?
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Albert Haynes Roadster FAQ | Haynes Builder Locations Gallery, build thread in Lithuanian / via Google Translate. Last edited by alga : 5th March 2010 at 05:52 PM.
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