Bilstein B14 coilovers popping

[Kostamojen]

Originally Posted by xxBrun0xx

No I didn't. You talking about lubricating between the rubber isolator on top of the struts or lubricating between the spring and the plastic washer between the spring and the collars on bottom?

The bottom with the blue plate. You dont have to lube it a lot, jist enough so its slippery. It helped elminate some binding noise from mine.

[rickpalace]

Originally Posted by xxBrun0xx

Hey guys,
Been searching and not had any luck. Recently installed Bilstein B14 coilovers. Was on TRD Springs for over a year before that with no issues. All other suspension is stock except oem front camber bolts. Using short bump stops in rear without any dust covers. Stock top hats. Getting a popping sound when driving slow over bumps. The coilovers are set to about 10 threads below the bottom, which leaves me about a 1 finger wheel gap (not sure how much lower than stock this is). Never had this noise before the coil install. Any ideas? Everything seems to be tight, alignment is done, running 18x8 sparco assetto gara wheels with pilot super sports that do not appear to be rubbing.

Btw.. Biltstiens have built in bump stops front n back...

That said, i had a similar issue with my B14's i took it all off and relubed everything, from there put it back together and problem solved. Hope this helps!

[xxBrun0xx]

So just to update this, it looks like the popping is being caused by the spring, which has a very sharp inside corner and is digging into the top collar, preventing it from spinning until the load on the spring is enough to pop it out. Ordered a set of linear springs and a new 60mm seat for the front from RCE based on this post:
http://www.ft86club.com/forums/showp...4&postcount=87
Will update with results once they get installed and setup gets realigned.

[xxBrun0xx]

Originally Posted by xxBrun0xx

So just to update this, it looks like the popping is being caused by the spring, which has a very sharp inside corner and is digging into the top collar, preventing it from spinning until the load on the spring is enough to pop it out. Ordered a set of linear springs and a new 60mm seat for the front from RCE based on this post:
http://www.ft86club.com/forums/showp...4&postcount=87
Will update with results once they get installed and setup gets realigned.

This didn't fix the issue. Makes me think I have something else going on. Going to go back to stock everything this weekend and see if I can't figure out what's going on.

[Kostamojen]

Lubricate it.

[xxBrun0xx]

Turns out the coil bind type noise was being caused by the undertray. Reinstalled, tightened every bolt, noise went away. Go figure. Only other odd sound I have is a quiet, distant popping that sounds like popcorn being popped slowly under 5 mph after I go over bumps (not when I hit said bumps). Almost seems like it has something to do with braking, but can't really tell. That seems to be coming from front passenger side. Wonder if that strut is on it's way out?

[AFRichZC6]

I had Bilstein PSS coilovers on my previous car, and after a few years, I would hear a dull popping sound over slow inclines, like pulling onto a driveway at an angle. It's not terribly common, but sometimes, the lubricant/grease along the shaft would dry out or harden (because inverted strut). Try spraying some lube on the shaft, and see if it makes the noise go away. If that gets rid of the noise, you should disassemble and replace the grease in the strut housing.

[MJones_RB]

I've got some P14s I'm about to install on my FR-S, and this info help a lot. I'm amazed how LITTLE info there is on the P14s specifically, other than just generic coilover installation info. The booklets that came with the coilovers are roughly translated from German, so it's a bit tough. Thanks for the help. I will make sure to spread some molly grease wherever metal meets metal to avoid the binding that seems to be prevalent.