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Author fk coilovers banging?
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 16:35   View User's Profile U2U Member Reply With Quote
I've just wound my cheapy FK coilovers down from about -45mm to about -55mm, and they're banging loudly when I go over bumps, especially when I've got a passenger with me. They weren't making any noises before I wound them down more, could they be bottoming out? Will it be doing any damage or should I just turn the radio up and ignore it?

[Edited on 02-12-2009 by jo1945]
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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2nd Dec 09 at 16:38   View User's Profile U2U Member Reply With Quote
have you got bump stops on the piston rod?
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 16:43   View User's Profile U2U Member Reply With Quote
I don't know tbh how would I find out? Forgot to mention it's a 2.0 so maybe a bit heavy?
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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2nd Dec 09 at 16:49   View User's Profile U2U Member Reply With Quote
jack the car up and have a look? will be a rubber bung on the piston, if it is not present you should strip them and insert one.

Also you want 270 - 280lb springs for an XE or so I've heard
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 17:01   View User's Profile U2U Member Reply With Quote
I've just had a look, can't see that well in this light though. Should it be up by the top mount or just above where the thread for adjusting height ends?
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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2nd Dec 09 at 17:32   View User's Profile U2U Member Reply With Quote
Here are my spax dampers striped down (same principle as your coilovers)



the black rubber on the shiny piston is the bump stop. It is free to move up and down the piston but if present on your set up will be sitting against the damper body due to gravity.

[Edited on 02-12-2009 by Sean-B]
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 17:59   View User's Profile U2U Member Reply With Quote
aha! I do not have those Thanks, that's a great help I'll get it sorted tomorrow
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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2nd Dec 09 at 18:53   View User's Profile U2U Member Reply With Quote
no problem, if you are really low you may want quite short ones around 30-40mm

[Edited on 02-12-2009 by Sean-B]
moka
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Registered: 11th Mar 06
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2nd Dec 09 at 19:13   View User's Profile U2U Member Reply With Quote
also make sure you have the little blue* bearing!
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 21:18   View User's Profile U2U Member Reply With Quote
Yeah, I've got some chopped down standard ones out of some old 40mm shocks and springs, I've put them in now so I'll see how that goes tomorrow.

moka - what does the blue bearing do?? I think I chucked them away :s
Minty_Fresh
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Registered: 1st May 08
Location: westmidlands
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2nd Dec 09 at 21:37   View User's Profile U2U Member Reply With Quote
as sean said, i had the same problem, i just cut the standard bumpstop down (orange ones) and fitted those, stopped the metal to metal contact of them bottoming out..

the springs are just that soft its untrue..
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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2nd Dec 09 at 21:51   View User's Profile U2U Member Reply With Quote
cool thats what I've done now, how much did you cut them down?
Minty_Fresh
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Registered: 1st May 08
Location: westmidlands
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3rd Dec 09 at 23:52   View User's Profile U2U Member Reply With Quote
saw..
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
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4th Dec 09 at 10:11   View User's Profile U2U Member Reply With Quote
Want them about 30-40mm
jo1945
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Registered: 15th May 09
Location: Stourbridge, West Midlands
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4th Dec 09 at 18:33   View User's Profile U2U Member Reply With Quote
problem solved with half size bump stops, thanks for your help
Sean-B
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Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
User status: Offline
4th Dec 09 at 19:50   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by jo1945
problem solved with half size bump stops, thanks for your help


Sweet, glad to help

 
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