S2000 Under The Hood S2000 Technical and Mechanical discussions.

JIC coilovers do need to be preloaded

Thread Tools
 
Old Apr 24, 2003 | 12:29 AM
  #61  
RT's Avatar
RT
25 Year Member
Liked
 
Joined: Oct 2000
Posts: 14,269
Likes: 42
From: Redmond, WA
Default

Rev, the helper spring is only there to keep a high rate spring from falling out of the cups at full droop, it's not the "problem" here. The real problem here is that the closed length of the rear damper is too long for the lowered application .... period. Rev, don't go in there with this helper spring as the cause of your problems, you'll only confirm your ignorance and lessen the chance of Jon doing something to fix the real problem.
They need to provide you with damper that has a shorter closed length.
Go get'em!!!!! Good Luck
Reply
Old Apr 24, 2003 | 04:07 AM
  #62  
E30M3's Avatar
Registered User
20 Year Member
 
Joined: Oct 2000
Posts: 741
Likes: 0
Default

Not to aggravate anyone but bottoming out a damper *lightly* once or twice might not kill it. But lots of *bang* type noises when bottoming out makes me wonder how well the dampers are now doing. Even if you now reset their operating range. It's a very common cause of death for dampers.

Stan
Reply
Old Apr 24, 2003 | 05:42 AM
  #63  
Gernby's Avatar
Thread Starter
Former Sponsor
 
Joined: Mar 2002
Posts: 15,526
Likes: 19
Default

[QUOTE]Originally posted by E30M3
[B]Not to aggravate anyone but bottoming out a damper *lightly* once or twice might not kill it.
Reply
Old Apr 24, 2003 | 05:47 AM
  #64  
gfacter's Avatar
20 Year Member
Photogenic
 
Joined: Nov 2002
Posts: 16,703
Likes: 74
From: High Knob Mountain
Default

Well I pulled my front dampers out when trying to diagnose the clunking. I removed the whole top assy. The damper still felt smooth and there was not any sign of leakage.

But, if there is a problem, I think Kevin at JIC USA will be replacing my dampers for free....If not I will by flying to CA


[QUOTE]Originally posted by E30M3
[B]Not to aggravate anyone but bottoming out a damper *lightly* once or twice might not kill it.
Reply
Old Apr 24, 2003 | 07:24 AM
  #65  
The Reverend's Avatar
Registered User
20 Year Member
 
Joined: Oct 2000
Posts: 2,560
Likes: 0
From: Studio City, CA
Default

[QUOTE]Originally posted by RT
[B]Rev, the helper spring is only there to keep a high rate spring from falling out of the cups at full droop, it's not the "problem" here.
Reply
Old Apr 24, 2003 | 07:59 AM
  #66  
The Reverend's Avatar
Registered User
20 Year Member
 
Joined: Oct 2000
Posts: 2,560
Likes: 0
From: Studio City, CA
Default

[QUOTE]
Hi Jon.
Reply
Old Apr 24, 2003 | 09:53 AM
  #67  
AJ PwR's Avatar
Registered User
 
Joined: Feb 2001
Posts: 1,848
Likes: 0
From: Tsukuba
Default

This is the first time I heard a set of coil-overs suspension needed preloads on the springs..... I think it's kind of screwed up. Other coil-over suspension manufacturers usually recommend 0 preload for best results.

The first time when I use coil-over suspension (it was 7 yrs ago) cuz they are very short stroke so they car was sitting pretty low so the only solution at that time was to raise it by giving preloads to the spring. It was a bitch to add preloads to a 16k/14k spring. After adjustment the ride was horrible.
Reply
Old Apr 24, 2003 | 10:48 AM
  #68  
Gernby's Avatar
Thread Starter
Former Sponsor
 
Joined: Mar 2002
Posts: 15,526
Likes: 19
Default

[QUOTE]Originally posted by AJ PwR
[B]This is the first time I heard a set of coil-overs suspension needed preloads on the springs..... I think it's kind of screwed up. Other coil-over suspension manufacturers usually recommend 0 preload for best results.
Reply
Old Apr 24, 2003 | 03:32 PM
  #69  
whiteGoKart39's Avatar
Registered User
20 Year Member
 
Joined: Aug 2002
Posts: 1,273
Likes: 0
From: Plano
Default

i was wondering how much did everyone get their JIC coliovers for??
Reply
Old Apr 24, 2003 | 04:26 PM
  #70  
AJ PwR's Avatar
Registered User
 
Joined: Feb 2001
Posts: 1,848
Likes: 0
From: Tsukuba
Default

[QUOTE]Originally posted by gernby
[B]

I don't see any reason why adding preload to 16K springs would be any more difficult than adding preload to 8K springs.
Reply



All times are GMT -8. The time now is 07:50 AM.