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#1
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odd vibration has me stumped
Ok maybe someone has some information that can help me narrow down this problem or maybe im not thinking of all the possibilities here:
1. I had a flat rear tire that I had repaired a while back. The tire was rebalanced and has since held air properly. 2. I started to notice a highway vibration or shudder about 2 months ago between 60-80 mph that would disappear outside of that mph range. 3. The vibration has no correlation with gear, throttle, or braking (if im doing 60-80 in even in neutral i can feel it) 4. I replaced my transmission a month or so ago with a 4.44 (which i love btw) and have done all preliminary maintenance (tranny filter, new diff fluid, lsd additive, etc) 5. I replaced my ball joints a week ago 6. After the transmission replacement I still have this mph related vibration that I cannot pinpoint. Currently Im considering that I should have all wheels rotated and balanced and then the only thing I can think of is when I had my flat tire I bent the rim. How likely is that? I have sti BBS wheels which are forged to my knowledge
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[SIGPIC][/SIGPIC] STi BBS wheels,legacy gt 4.44, 3" catback exhaust, Stance GR+ 7k/5k, QS Teflon adjustable endlinks, Hankook EVO 245/40/17, 95-LS escaine seats, GC8 V7 steering wheel, JDM clear corners, small car clear lenses, Alcyone badge, JDM rear taillight, 97 grille, stevesby bumper, PWR radiator, Perrin Crank pulley, Urethane Swaybar bushings, urethane diff bushings, DDM 6k 55watt lows and 4500k 35watt fog lights; $15/15min mod, Motorsport whs 22mm rear swaybar, QC shift kit, ToMyx intake, z32 aluminum calipers 13" rotors, nitrous express proton + wet kit. |
#2
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Re: odd vibration has me stumped
You could have bent the rim, but I would expect you'd feel that at lower speeds. Try rotating the tires and see if the vibration moves- if it does, have them rebalanced. You might have thrown a light wheel weight (like a 5) that would become more pronounced the faster you go.
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#3
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Re: odd vibration has me stumped
I remember issues with my rims a while back and having no centric hub rings at all. I'm guessing you have some but maybe when the tire was changed it could fallen off when replaced? Just a thought really... otherwise I would have someone balance that specific tire with one of those spiffy machines though the name of said machine tends to escape my mind at the moment, sorry.
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1994 subaru svx le 112k |
#4
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Re: odd vibration has me stumped
Did you use any fix a flat?
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#5
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Re: odd vibration has me stumped
actually i did use fix a flat
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[SIGPIC][/SIGPIC] STi BBS wheels,legacy gt 4.44, 3" catback exhaust, Stance GR+ 7k/5k, QS Teflon adjustable endlinks, Hankook EVO 245/40/17, 95-LS escaine seats, GC8 V7 steering wheel, JDM clear corners, small car clear lenses, Alcyone badge, JDM rear taillight, 97 grille, stevesby bumper, PWR radiator, Perrin Crank pulley, Urethane Swaybar bushings, urethane diff bushings, DDM 6k 55watt lows and 4500k 35watt fog lights; $15/15min mod, Motorsport whs 22mm rear swaybar, QC shift kit, ToMyx intake, z32 aluminum calipers 13" rotors, nitrous express proton + wet kit. |
#6
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Re: odd vibration has me stumped
is fix a flat impossible to balance out of a wheel??
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[SIGPIC][/SIGPIC] STi BBS wheels,legacy gt 4.44, 3" catback exhaust, Stance GR+ 7k/5k, QS Teflon adjustable endlinks, Hankook EVO 245/40/17, 95-LS escaine seats, GC8 V7 steering wheel, JDM clear corners, small car clear lenses, Alcyone badge, JDM rear taillight, 97 grille, stevesby bumper, PWR radiator, Perrin Crank pulley, Urethane Swaybar bushings, urethane diff bushings, DDM 6k 55watt lows and 4500k 35watt fog lights; $15/15min mod, Motorsport whs 22mm rear swaybar, QC shift kit, ToMyx intake, z32 aluminum calipers 13" rotors, nitrous express proton + wet kit. |
#7
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Re: odd vibration has me stumped
"Well THERE is your problem!"
Unless your tire mechanic removes all of the fix a flat it will continue to cause weird vibrations. The best solution is to remove the tire from the wheel, wipe everything out, and remount, reballance!
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#8
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Re: odd vibration has me stumped
Whenever I fix a tire with fixaflat in it, I just clean it out anyway. I doubt it would be that.
Have you considered an out of balance rotor, maybe a bad axle? I've seen those both happen before. Also, I'd have the other tires balanced as well, and rotate them like suggested and see if the problem moves. Do you notice it coming from a certain corner or anything?
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#9
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Re: odd vibration has me stumped
I slung the weights off of my cobalt ss tire the other day and I thought it was going to come apart over 40mph. Everything was fine until 40.
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92 claret-87 xt turbo-93 z28 6 speed-06 cobalt SS |
#10
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Re: odd vibration has me stumped
my money is on driveshaft u joints...although the vibration issue appeared after your tire extravaganza it can also be a coincidence...just a guess though
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Eric Rebuilt P/S pump info... http://www.subaru-svx.net/forum/showthread.php?t=50918 If your car wont start info... http://www.subaru-svx.net/forum/show...ighlight=click |
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