Coil overs installed, weird sounds (audio file)
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Thread: Coil overs installed, weird sounds (audio file)

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    I spend too much of my life on FST! airborne's Avatar
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    Coil overs installed, weird sounds (audio file)

    Hi guys, installed Bilstein B14 coilovers about 3 weeks. Recently started making these sounds, I have an alignment booked for tuesday and the guys are going to come for a ride to hear the sounds before hand. I included them in this audio file. times at :19 :56 1:03 1:35 & 2:00 Please have a listen if you can lend me your thoughts? Rears are fully lowered and the fronts have 8 threads left. All around the measurements are within 1-2mm of each other. Sound is coming from front driver side.

    Vocaroo | Voice message
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    I spend too much of my life on FST! FostMadness's Avatar
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    could be the top hat wasn't torqued down enough and is bouncing. I would jack the car up and see if it has play. other than that the only thing would be to take it out and check and see if its tight.
    '15 MM st3

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    I spend too much of my life on FST! airborne's Avatar
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    Quote Originally Posted by FostMadness View Post
    could be the top hat wasn't torqued down enough and is bouncing. I would jack the car up and see if it has play. other than that the only thing would be to take it out and check and see if its tight.
    Thanks for checking it out dude, do you mean if the entire shock has play? I did snap by accident one of the 3 top hat bolts by torquing it at 60 lbs instead of 26 by accident. Do you that that would be the issue?
    COBB APv3 - Rear Motor Mount
    Damond Motor Sports PSMM
    ROUSH Intake - Catback Exhaust
    MBRP Catless Downpipe
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    Hawk HPS pads

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    I spend too much of my life on FST! FostMadness's Avatar
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    Quote Originally Posted by airborne View Post
    Thanks for checking it out dude, do you mean if the entire shock has play? I did snap by accident one of the 3 top hat bolts by torquing it at 60 lbs instead of 26 by accident. Do you that that would be the issue?
    You could try but you most likely wont be able to put enough force on it to make it move even if it is loose. if you broke one of the bolts and didn't put a third one in I would definitely fix that. I'm talking about the center bolt that holds the top hat and bearing to the strut not being tight enough.
    '15 MM st3

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    Supporting Member UnfocusedST's Avatar
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    It's possible the center nut that holds the top hat to the strut is loose.

    Sent from another garage.

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    I spend too much of my life on FST! airborne's Avatar
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    Thanks guys, the broken bolt is in the thread, the top did break off. I was hoping I would not have to remove the strut as I am down with shoulder surgery, I have my appt on tuesday. If that is the cause is there any damage to driving it around before I can have them take it off and check?
    COBB APv3 - Rear Motor Mount
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    ROUSH Intake - Catback Exhaust
    MBRP Catless Downpipe
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    Supporting Member UnfocusedST's Avatar
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    I wouldn't. If all three were still intact it would be fine. However with one broke now the other two are doing alot more work.

    Sent from another garage.

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    Can verify it's the top hat bolt. Mine had the same issue, and pulling it out and making it tight did the trick. Mine did end up coming loose again because I didn't use any loctite, so I recommend using some so you don't have to do it all over again like me.
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    I spend too much of my life on FST! airborne's Avatar
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    Thats what I am figuring now with everyone pointing to that - how long did you drive with yours before you managed to fix it? This is a new sound for the last 2 days or so.

    Can verify it's the top hat bolt. Mine had the same issue, and pulling it out and making it tight did the trick. Mine did end up coming loose again because I didn't use any loctite, so I recommend using some so you don't have to do it all over again like me.
    COBB APv3 - Rear Motor Mount
    Damond Motor Sports PSMM
    ROUSH Intake - Catback Exhaust
    MBRP Catless Downpipe
    CPE Intercooler
    Steeda Sound Symposer Delete
    Velossa Tech Badges/Big Mouth/Wing Risers
    Bilstein B14 Coil overs
    NGK 1 Step cold plugs .026
    Firestone Firehawk Indy 500 255/35/18
    Tredwear
    Enkie RPF1 18x9+35
    Garage Line Hood Struts
    Boomba engine bay dress up
    Shark fin antenna
    Hawk HPS pads

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    Also make sure you guys are putting preload on the suspension before torquing.

 

 

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