Extra Hard Shock Spring Shrinkage

[Boxerlego]

Hello, recently I notice that one of my extra hard shock spring has become smaller then the rest of the shocks. I dont know what happen to the spring but I can tell you that when I took the shock apart to take out the spring, the spring shrank even smaller then was first notice. So my guess is that compression of the spring caused the deformation. This is the first time I notice anything like this happening with the shocks. This is surprising because the shocks are fairly new. So How many else are seeing this happening to their shocks?

[Alasdair Ryan]

Not happened to me,but if you speak to lego I am sure that they will send you out a spare.

[750ACE]

One which came with my 9398 was weaker than the other three and caused the 9398 to lean. Replaced with a new one fixed it.

[z3_2drive]

The four large shocks on my RC chassis are under constant compression but they have not deformed at all. So you probably have a defective spring. Is it only the one?

[kevman]

happened to one of my 9398 like 750Ace

[therealjustin]

My Unimog has started to lean to the right, when viewed from behind.

I thought it might have been the battery pack but that is on the other side

[DrJB]

I bet the springs are out-sourced i.e., Lego must buy them from someone else ... and that someone else forgot to 'heat temper' those springs. In the automotive, this would lead to a major recall. Here however, I agree that a call to TLG should resolve this issue.

[Boxerlego]

Thanks everyone I guess I'm going to send these shocks back... Tho I did tried to fixed the spring by stretching the spring out. But after doing a simple test with a digital scale to measure the stretched out sping's force in grams and compare that against the standard force of the extra hard shocks. I saw a slight difference in force between them. In order to get the normal force of the extra hard shocks I average the total force of 6 shocks and a normal shock appears to have a force around 1300g while the stretched out spring one appears to have a force around 1000g also I have another shock that has some spring shrinkage not as bad as the other and that force was also maxing around 1000g.

[Omikron]

Mine from 9398 is also defective. I think it was the whole batch.

My spring didn't shrink under usual circumstances, but if you compress the absorber to max - the spring will shrink. I was sorting my parts when compressed the absorber and was surprised there was no reaction after I compressed it. like there was no spring at all.

Edited November 19, 2013 by Omikron