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#88082 - December 23rd 2003 7:58 pm bad vibrations
glenn bedwell Offline
stranger

Registered: December 20th 2003 12:00 pm
Posts: 3
Loc: ft. myers fl.
77 b-200 torqueflite,318,2" drop in front,stock height in rear,225-15-60 front,295-15-50 rear.the drive train is vibrating bad between 40-80mph has new u-joints. am considering 4"drop springs in front and 4" lowering blocks in the rear. maybe this will lower but level the pinion angle need an answer help

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#88083 - December 25th 2003 11:59 am Re: bad vibrations
videomvl Offline
enthusiast

Registered: January 30th 2002 12:00 pm
Posts: 218
Loc: PLAINFIELD,ILL. USA
does it still vibrate when you let off the accellerator?

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#88084 - December 25th 2003 8:13 pm Re: bad vibrations
glenn bedwell Offline
stranger

Registered: December 20th 2003 12:00 pm
Posts: 3
Loc: ft. myers fl.
no. it smooths out then. i have put front u-joints in it 4 times in a year

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#88085 - December 28th 2003 12:15 am Re: bad vibrations
Vanner7 Offline
journeyman

Registered: January 11th 2003 12:00 pm
Posts: 60
Loc: North Olmsted, Ohio, U.S.A.
Make sure your drive shaft is balanced....that could wear the front u joint and cause vibration.

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#88086 - December 28th 2003 5:53 am Re: bad vibrations
vanner40 Offline
addict

Registered: March 11th 2002 12:00 pm
Posts: 536
Loc: Pa
Hi guys, I've got a vibration problem to in my 77 dodge, when sitting still in park, engine ideling it runs great, give it gas to rev the motor, the whole van shakes like crazy, I know it's not the motor mounts, think it could not be running on all cylenders? Any help is needed, thanks.

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#88087 - December 28th 2003 10:26 am Re: bad vibrations
videomvl Offline
enthusiast

Registered: January 30th 2002 12:00 pm
Posts: 218
Loc: PLAINFIELD,ILL. USA
have you recently put tires on it?

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#88088 - December 28th 2003 10:27 am Re: bad vibrations
videomvl Offline
enthusiast

Registered: January 30th 2002 12:00 pm
Posts: 218
Loc: PLAINFIELD,ILL. USA
vanner 40 tune it up!!!!!!!!!

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#88089 - December 29th 2003 11:23 am Re: bad vibrations
Superbeast Offline

Madman!


Registered: October 25th 2001 12:00 pm
Posts: 28121
Loc: Dayton, New Jersey, U.S.A.
Greetings Glenn;

Did the vibration start when you dropped the front end? There should be a 15 degree difference in the drivesahft angle. If it is too straight or angled too far it will cause a vibration. If the driveshaft is ballanced, you may want to check the pinion bearing.if the pinion is moving it will also cause a vibration and can also cause u-joint wear.

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#88090 - December 29th 2003 1:01 pm Re: bad vibrations
relaxedvanner Offline
veteran

Registered: December 17th 2003 12:00 pm
Posts: 1801
Loc: Calgary Alberta. Canada
Vanner 40, You may have a bad torque converter. Lost its balance. Not knowing your van its also possible you slipped a tooth or 2 on your timing chain. The originals used a steel cog with nylon gears. It could also be bad high tension wires. Was it damp or raining when this happened? If you take the dog house off and run the van in the dark you can sometimes see the problem sparking from a wire or your dist. to ground. You might also want to check inside your dist. for carbon tracks. That would tell you its time to replace it, could be jumping inside. Also chech or listen for vacuum leaks, this could cause you vacuum advance from activating. Remember to work safe disconnect you batt. before elect work. Hope this helps. S.P.

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#88091 - December 29th 2003 5:54 pm Re: bad vibrations
vanner40 Offline
addict

Registered: March 11th 2002 12:00 pm
Posts: 536
Loc: Pa
Thanks for all the help. I just got it a month ago and starting to work on the motor end of it. My first thought was the torque converter, I had trouble with my last dodge there. I'm going to start with the simple first, tune up and down ward, I know I'll eventually find it, it's just nice having a little help, makes it easyier knowing some of the things to look for. I have no info on the van except the bull the guy told me when he sold it to me, ran great in the parking lot, on the open road is a different story now. I found a steering box and center link arm, now on to the motor, thanks guys.

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