Knocking after lowering *Solved, swaybar endlink* - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

atledreier · 02-21-2014, 01:30 PM

Just put on my Eibach Pro springs. The springs settled nicely in the seats, and I went over every bolt when putting them on. Everything seemed tight when I put it on, but going over bumps I get knocking in all four corners.

Any tips to where I can go looking?

Edit:
Turned out to be a loose swaybar endlink. I had loosened it to get better access, forgot to tighten it back up.

mav1178 · 02-21-2014, 02:32 PM

You didn't tighten your top strut nut enough.

-alex

mackdaddytran · 02-21-2014, 02:36 PM

Yeah esp the middle nut

atledreier · 02-21-2014, 02:41 PM

Hm... What torque should I use? I used the guide DarrenDriven made. Maybe my torueqrench is a little low...

I'll go over them again. Luckily they are easy to come by. :-)

fourvalleys · 02-21-2014, 02:56 PM

Whatever you tighten them to, make sure you check it while the car is in the air and on the ground. It will make a difference.

atledreier · 02-21-2014, 02:57 PM

ok, I will! Thanks!

Anyone know what torque the manual says to use? And when?

sshole · 02-21-2014, 03:03 PM

41 ft-lbs I believe is the torque required for the strut top nut.

You'll need to use a pass-through torque wrench (if you can get one) and an allen key to hold the strut body.

Check all your other fasteners to ensure they are still tight. One that got me worried was the sway bar endlink nut. I used an impact gun on the nut to get it tight, but it ended up backing out a week or so later causing a heinous noise. Went back with a pass-through socket wrench and allen key to tighten it up and all is well.

solidONE · 02-21-2014, 07:25 PM

Check your tire clearances to the spring and perch. I get noises from my 245's rubbing against the spring when the wheel is turned. 45mm offset with 5mm spacer so effectively 40mm along with -2.6* camber.

lightdir · 02-21-2014, 11:27 PM

could be your swaybar endlinks

atledreier · 02-22-2014, 03:44 AM

Thanks for all the tips, guys!

I'll get some deep pass-through wrench and an allen key to check the strut top nut. That one I just used my impact gun until it seemed to be tight, but could be it just tightened up enough to turn the strut axle.

I'll also make sure to check the endlinks again.

sshole · 02-22-2014, 10:13 AM

Quote:

Originally Posted by atledreier

Thanks for all the tips, guys!

I'll get some deep pass-through wrench and an allen key to check the strut top nut. That one I just used my impact gun until it seemed to be tight, but could be it just tightened up enough to turn the strut axle.

I'll also make sure to check the endlinks again.

You blew your struts.

atledreier · 02-22-2014, 10:54 AM

How does fastening a nut to an axle blow the struts? I'm just curious.

Sent from my GT-N7100 using Tapatalk

sshole · 02-22-2014, 11:00 AM

These struts are extremely sensitive to being spun. If you had looked at any of the DIY spring/strut install threads on this forum, you'd have known from the beginning that many users have reported using an impact gun on the strut top nut has caused their strut to make noise, leak, and ultimately need to be replaced.

You can start diagnosing by tightening the strut top nut the correct way, but if it's still making noise, look for tell tale signs of blown struts - hydraulic fluid leaking, struts compressible by hand, etc.

atledreier · 02-22-2014, 11:02 AM

Will do!
I can't remember Darrendrivens how to mentioning that, but I may well have missed it

Edit: just checked, the guide I read specifically mention impact as a useful tool for the top nut

Sent from my GT-N7100 using Tapatalk

02-21-2014, 02:36 PM	#3
mackdaddytran Senior Member Join Date: Apr 2013 Drives: Toyota Skyline Type-R Location: Screwston Posts: 205 Thanks: 7 Thanked 93 Times in 51 Posts Mentioned: 4 Post(s) Tagged: 1 Thread(s)	Yeah esp the middle nut __________________ My build thread: http://www.ft86club.com/forums/showthread.php?t=35066

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02-21-2014, 02:32 PM	#2
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,097 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	You didn't tighten your top strut nut enough. -alex

02-21-2014, 02:56 PM	#5
fourvalleys Howdy! Join Date: Nov 2013 Drives: Party ST, Classic Mini Location: WI/IL Posts: 196 Thanks: 73 Thanked 97 Times in 52 Posts Mentioned: 5 Post(s) Tagged: 1 Thread(s)	Whatever you tighten them to, make sure you check it while the car is in the air and on the ground. It will make a difference.

02-21-2014, 03:03 PM	#7
sshole Banned Join Date: Jan 2014 Drives: BRZ Location: VA Posts: 594 Thanks: 201 Thanked 389 Times in 195 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	41 ft-lbs I believe is the torque required for the strut top nut. You'll need to use a pass-through torque wrench (if you can get one) and an allen key to hold the strut body. Check all your other fasteners to ensure they are still tight. One that got me worried was the sway bar endlink nut. I used an impact gun on the nut to get it tight, but it ended up backing out a week or so later causing a heinous noise. Went back with a pass-through socket wrench and allen key to tighten it up and all is well.

02-21-2014, 07:25 PM	#8
solidONE Senior Member Join Date: Dec 2012 Drives: FR-S Whiteout Location: California Posts: 2,863 Thanks: 1,808 Thanked 791 Times in 611 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	Check your tire clearances to the spring and perch. I get noises from my 245's rubbing against the spring when the wheel is turned. 45mm offset with 5mm spacer so effectively 40mm along with -2.6* camber.

02-21-2014, 11:27 PM	#9
lightdir Member Join Date: Jul 2012 Drives: 2013 Raven FRS 6MT Location: Houston,TX Posts: 59 Thanks: 82 Thanked 23 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	could be your swaybar endlinks

02-22-2014, 11:00 AM	#13
sshole Banned Join Date: Jan 2014 Drives: BRZ Location: VA Posts: 594 Thanks: 201 Thanked 389 Times in 195 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	These struts are extremely sensitive to being spun. If you had looked at any of the DIY spring/strut install threads on this forum, you'd have known from the beginning that many users have reported using an impact gun on the strut top nut has caused their strut to make noise, leak, and ultimately need to be replaced. You can start diagnosing by tightening the strut top nut the correct way, but if it's still making noise, look for tell tale signs of blown struts - hydraulic fluid leaking, struts compressible by hand, etc.

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