Vibration!
Moderator: John_Heard
Vibration!
Hi there everyone, my car developed a vibration from about 1,000' on (maybe a little earlier) that I need to track down. I just had the driveline balanced and it's fine they said so what are some other area's that are common to causing high speed vibration? combo: 555bbc, ATI glide with roller tailhousing, dana with 35 spline and spool (narrowed with short axles). Thanks,
Keith
Keith
8.90@149 and 3,000lb, no Juice, no boost!
- sunsation540
- Posts: 406
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- Location: Moore OK.
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- Posts: 238
- Joined: Thu Oct 12, 2006 1:12 pm
- Location: Colonial Beach VA If I am not at home or the track then I am probably at HOOTERS
I had a camaro that developed a high speeed vibration,it just came from nowhere I checked fluids,balanced tires,changed u-joints all to no avail.....two weeks later the rear grenaded on the highway
74 chevy luv 355 sbc bracket car
70 Nova SS bracket / t.n.t car.
(Yes REAL SS 396 DISCS 12B0LT ETC)
WANTED DEAD OR ALIVE 68-74 NOVAS
TOO MUCH IS NOT ENOUGH!!!!!!!!!!!!!!!!
70 Nova SS bracket / t.n.t car.
(Yes REAL SS 396 DISCS 12B0LT ETC)
WANTED DEAD OR ALIVE 68-74 NOVAS
TOO MUCH IS NOT ENOUGH!!!!!!!!!!!!!!!!
With the driveshaft balanced I guess I'll start checking the axles and pinion bearings. I'ts a dana with 35 spline axles that are pretty short and have very few runs on them so I'm not expecting to find much, but who knows maybe there's something wrong in there. Thanks for the suggestions so far.
Keith
Keith
8.90@149 and 3,000lb, no Juice, no boost!
Alright, I checked the runout on the driveshaft in the car and there is about .013" runout. Took the shaft out turned it 180* to see if it might be the companion flange and the runout was in the exact same spot. Would .013" runout on the driveshaft cause a bad vibration that gets worse the faster you go?
Thanks,
Keith
Thanks,
Keith
8.90@149 and 3,000lb, no Juice, no boost!
-
- Posts: 238
- Joined: Thu Oct 12, 2006 1:12 pm
- Location: Colonial Beach VA If I am not at home or the track then I am probably at HOOTERS
I wouldnt think that little bit would be noticable does the vibration get worse upon acceleration and taper off when you lift off the gas? While the driveshaft is out wiggle the u-joints in all directions to make sure there is no binding or tight spots.
74 chevy luv 355 sbc bracket car
70 Nova SS bracket / t.n.t car.
(Yes REAL SS 396 DISCS 12B0LT ETC)
WANTED DEAD OR ALIVE 68-74 NOVAS
TOO MUCH IS NOT ENOUGH!!!!!!!!!!!!!!!!
70 Nova SS bracket / t.n.t car.
(Yes REAL SS 396 DISCS 12B0LT ETC)
WANTED DEAD OR ALIVE 68-74 NOVAS
TOO MUCH IS NOT ENOUGH!!!!!!!!!!!!!!!!
- rustbucket
- Posts: 566
- Joined: Tue Aug 15, 2006 6:36 pm
- Location: central alabama
have you tried supporting the car off the ground and running up some tire speed? you may can see something wierd going on.
406sbc, powerglide, nitrous
http://youtube.com/watch?v=DssW5vc_t3k
http://youtube.com/watch?v=DssW5vc_t3k
Thanks everyone, the u-joints don't have any binding to them, I'll run it on jack stands and see if something wierd is going on. I had the slicks balanced and it made absolutely no difference. The vib does taper off after the finish line but not as quickly as engine rpm so I'm convinced it's behind the engine somewhere. Thanks,
Keith
Keith
8.90@149 and 3,000lb, no Juice, no boost!
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