Front springs does not fit.
- Thread starter Henrik
- Start date
I have to say what a great group of members we have here. Very nice to be able to discuss and not start a sh*t storm! Best forum I know of.
would like that in poster size for my garage!!
TodB
Well-Known Member
You mean every car forum isn't like this?:shock:
My Dinan springs with Bilstein sports on my E28 do the same thing. The back right creaks.
Here are some photos of left and right spring after the MOT test and a short drive home. I think they illustrates my concerns! The spring on the photo has a free length on about 240mm and the gap is about 10 mm. The blue book says that the length of a CSL spring shall be 260mm, so why do some companies sell springs that obviously miss 20mm? It is exactly 20mm that is needed to fill the gap and put the necessary pressure on the springs to keep them in place. I think the BMW engineers saw this when the modified the springs for the CSL.
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And here is a pic I took last week of a set of springs I took off an csi and replaced with the last known set of original NOS lowering springs from CN. Old springs can go bad.......
These were red stripes. Has anyone measured yellow?
These were red stripes. Has anyone measured yellow?
I contacted W&N and asked them if they had an explanation, but the answer I received gave no meaning. In the meantime, however, I found that BMW supplies the lower spring rubber in different sizes 10, 15 and 22,5 mm. So I mounted the 22,5 mm rubber yesterday and it closed the gap. No more rattling from the springs and they will not move out of position. Problem solved!
BTW: By measuring old and new spring struts I found that the lower spring plate are welded slightly lower on the strut on models up to 71. This will naturally cause the gap to be larger on a 2800 CS than a 3.0 CSI.
Henrik
BTW: By measuring old and new spring struts I found that the lower spring plate are welded slightly lower on the strut on models up to 71. This will naturally cause the gap to be larger on a 2800 CS than a 3.0 CSI.
Henrik
you 100% need shorter stroke shocks, or shocks with an internal pull down spring, beware there are many different Bilsteins, not all short stroke, if you fit a spacer you will raise the car, same as fitting longer springs, if you fit longer springs that compress to the same ride position as now you will have a soft ride, you need shorter shocks, Pat
I am having the same issue with my 2800 CS now. I just installed CN lowering kit which included the Bilstein shock as part of the kit.
I have to contact Carl Nelson then.
I have to contact Carl Nelson then.
+1 Sport shocks are needed as they have a shorter stroke which should keep the spring compressed
E9 front springs from CN + Bilsteins; Since forever-ago I have always been cautioned about the tension of front strut springs and to be very careful when removing them- using the correct tools etc, and not drinking (too much) before hand. I was surprised when I put my set-up together that I could almost assemble them without the spring compressor, but there was just a little too much tension. On the racing set-ups there may be a reason for the additional stroke of the shock, maybe to allow a higher volume of gas/fluid to be in the chamber or whatnot, but I for one would prefer the strut-spring assembly to be matched so as not to be able to move/rotate. There is probably a reason they're designed that way I'm thinking.
Henrik, I have developed a strange knock from one of my front wheels and I think you may have got me on the correct path to figuring it out. BTW, this is a really useful post and something I think we should follow through on to get the correct (safe) answer- thanks!
Henrik, I have developed a strange knock from one of my front wheels and I think you may have got me on the correct path to figuring it out. BTW, this is a really useful post and something I think we should follow through on to get the correct (safe) answer- thanks!