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Re: vibration update on the cuda #127064
12/04/08 03:54 AM
12/04/08 03:54 AM
Joined: Feb 2003
Posts: 911
London, England
mopar_mark Offline
super stock
mopar_mark  Offline
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Posts: 911
London, England
Quote:

Quote:

Almost time to hire a Vibration Analyst.




Dan, I can get one of those from my new 8.50 index car's sponsor "CHEERLEADERS". Many girls there have a PHD in that field




Batteries not included

Re: vibration update on the cuda [Re: mopar_mark] #127065
12/04/08 08:42 AM
12/04/08 08:42 AM

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Quote:

Quote:

Quote:

Almost time to hire a Vibration Analyst.




Dan, I can get one of those from my new 8.50 index car's sponsor "CHEERLEADERS". Many girls there have a PHD in that field




Batteries not included




i got the hookup on the batteries. Tell me where to bring them and I'll hand them off personally

Re: vibration update on the cuda #127066
12/04/08 08:46 AM
12/04/08 08:46 AM
Joined: Aug 2003
Posts: 2,617
Stratford nj
cudadan Offline OP
master
cudadan  Offline OP
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Posts: 2,617
Stratford nj
ROFLMAO, now this is getting good

Re: vibration update on the cuda [Re: cudadan] #127067
12/04/08 10:37 AM
12/04/08 10:37 AM
Joined: Aug 2003
Posts: 2,463
Answering the call of the wild
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ThermoQuad Offline
top fuel
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Posts: 2,463
Answering the call of the wild
I feel your pain and I have read the thread several times now.

It eats rear u joints-it should not eat u joints-that maybe the end result of what the real problem is.

Have you re-torqued the u bolts?

Have you inspected the springs for a bad bushing, cracked leaf etc.

Did you put the car on jack stands under the lca's and rear axle at ride attitude & plot the ctr pt of each wheel on the floor using a plumb-bob to see how "square" your wheels are? Uh-oh I am giving away secrets now...

It eats u joints is the clue..

Re: vibration update on the cuda #127068
12/04/08 12:03 PM
12/04/08 12:03 PM
Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger Offline
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Quote:

Quote:

Almost time to hire a Vibration Analyst.




Dan, I can get one of those from my new 8.50 index car's sponsor "CHEERLEADERS". Many girls there have a PHD in that field


Personal Handheld Device?

Post deleted by Defbob [Re: cudadan] #127069
12/04/08 02:11 PM
12/04/08 02:11 PM

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Re: vibration update on the cuda #127070
12/04/08 03:26 PM
12/04/08 03:26 PM
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4 Offline
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gulfport, ms, west mi
Fred, don't you have to pass the test [find the problem and fix it} before you get the certificate?


it's ok to butt heads, just don't do it with a butthead
Re: vibration update on the cuda #127071
12/04/08 08:49 PM
12/04/08 08:49 PM
Joined: Aug 2003
Posts: 2,617
Stratford nj
cudadan Offline OP
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Stratford nj
Quote:

Quote:

ROFLMAO, now this is getting good







omg Fred you are killing me, well i am thinking that its the motor i clamped a pc of Aluminum all over the underneath of the car and at the rear it barely moved when i got closer to the motor it was springing like a diving board from the tranny forward

Re: vibration update on the cuda [Re: cudadan] #127072
12/04/08 09:05 PM
12/04/08 09:05 PM
Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
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David_in_St_Croi Offline
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St. Croix, US Virgin Islands
Have you checked the condition of the harmonic damper?


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Re: vibration update on the cuda [Re: David_in_St_Croi] #127073
12/04/08 10:50 PM
12/04/08 10:50 PM
Joined: Aug 2003
Posts: 2,617
Stratford nj
cudadan Offline OP
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Stratford nj
Quote:

Have you checked the condition of the harmonic damper?




brand new and does the same as the old one lol, i am gonna try a new flex plate just for the hell of it

Re: vibration update on the cuda [Re: cudadan] #127074
12/04/08 11:13 PM
12/04/08 11:13 PM
Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger Offline
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Sk. Canada
If it was in the motor /front trans area, wouldn't it vibrate with engine rpm and/or in nuetral?

Re: vibration update on the cuda [Re: RemCharger] #127075
12/05/08 02:01 PM
12/05/08 02:01 PM
Joined: Aug 2003
Posts: 2,617
Stratford nj
cudadan Offline OP
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Quote:

If it was in the motor /front trans area, wouldn't it vibrate with engine rpm and/or in nuetral?



it do feel some vibes but not as bad, but when you sit in the car in 3rd gear 35mph @1800 it feels like your teeth are gonna fall out of your head, when you go under the car and feel the rear housing, you can barely feel it, go to the trans mount area shaking like shakes more than an 1/8. it is so bad.

Re: vibration update on the cuda [Re: cudadan] #127076
12/05/08 03:58 PM
12/05/08 03:58 PM
Joined: Jan 2003
Posts: 1,990
, PA
sleepyhead416 Offline
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, PA
What type of motor mounts do u have?

Re: vibration update on the cuda [Re: cudadan] #127077
12/05/08 06:34 PM
12/05/08 06:34 PM
Joined: Nov 2004
Posts: 3,619
Norwich CT USA
Defbob Offline
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rims bent?

Re: vibration update on the cuda [Re: cudadan] #127078
12/05/08 08:05 PM
12/05/08 08:05 PM
Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger Offline
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Quote:

Quote:

If it was in the motor /front trans area, wouldn't it vibrate with engine rpm and/or in nuetral?



it do feel some vibes but not as bad, but when you sit in the car in 3rd gear 35mph @1800 it feels like your teeth are gonna fall out of your head, when you go under the car and feel the rear housing, you can barely feel it, go to the trans mount area shaking like shakes more than an 1/8. it is so bad.


I had a cast crank 440 with steel balancing stuff on it. I've got a 383 with a shimmy stemming from the convertor hub being out of whack. Both of those deals you could feel vibrations at 35 mph. BUT, you could, (and I did ) race them. They were fine as far danger goes, just not too good on the bearings. Both of them had the exact same vibes in nuetral as driving. Your deal has got to be at driveshaft speed . If you go under the car, how hard is it the physically move the pinion snout around?, pretty hard. Now try moving the rear of the tranny around, somewhat easier. If there is a d/s issue even at the rear, its going to start tossing the tranny around. Its hard to diagnose from 8 million miles away, but when you keep saying its scary at 80 miles an hour, I find it hard to believe its engine rpm related. You would know it in neutral...

Re: vibration update on the cuda [Re: RemCharger] #127079
12/05/08 09:46 PM
12/05/08 09:46 PM
Joined: Feb 2003
Posts: 10,177
Someplace you aren't
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SomeCarGuy Offline
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Someplace you aren't
Since you swapped out every other thing, I would think a motor swap would not be much more work at this point.

Re: vibration update on the cuda [Re: SomeCarGuy] #127080
12/06/08 01:53 PM
12/06/08 01:53 PM
Joined: Aug 2003
Posts: 2,617
Stratford nj
cudadan Offline OP
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Quote:

Since you swapped out every other thing, I would think a motor swap would not be much more work at this point.



thats what im gonna do, im putting in a bad a$$ lil 340 to check, probably right after the holidays. 340 is for sale too.

Re: vibration update on the cuda [Re: cudadan] #127081
12/15/08 04:51 PM
12/15/08 04:51 PM
Joined: Jan 2003
Posts: 1,990
, PA
sleepyhead416 Offline
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Any UPDATE dan ??

Re: vibration update on the cuda [Re: cudadan] #127082
12/15/08 05:14 PM
12/15/08 05:14 PM
Joined: Jun 2003
Posts: 9,225
Charleston
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sixpackgut Offline
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Charleston
Quote:

Quote:

Since you swapped out every other thing, I would think a motor swap would not be much more work at this point.



thats what im gonna do, im putting in a bad a$$ lil 340 to check, probably right after the holidays. 340 is for sale too.




your going to sell a 340 ci vibrator?

do you have a pulley on the balancer?


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Re: vibration update on the cuda [Re: cudadan] #127083
12/15/08 05:37 PM
12/15/08 05:37 PM
Joined: Jun 2004
Posts: 334
Wi.
6
65_gt_rag_402 Offline
enthusiast
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Joined: Jun 2004
Posts: 334
Wi.

sounds like you have a cracked flex plate or the wrong one . Strokers are balanced different than a non stroker engine .
maybe converter issues ?

Last edited by 65_gt_rag_402; 12/15/08 05:38 PM.

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