November 6, 2010 at 4:03 pm #233208
I am finishing a Dutches td with a chevette 79 , and I get a vibration in the drive train when starting out , sometimes when speeding up also. I saw something in one of the forms about ,a drive shaft.replcement part? Any one can help me with whats wrong.November 6, 2010 at 4:56 pm #242743Larry MurphyParticipant
Denora, Click on the search button at the top and type in Chevette drive shaft and you will see some discussion about the problem you describe.
Do you know if the drive shaft has been balanced? Is the rear u-joint centered properly in the rear end? Are both U-joints free of tight spots[not binding] and not sloppy fitting?
Check for excessive play[looseness] at the front of the extension housing.November 6, 2010 at 5:25 pm #242744Steve CritesParticipant
Since the Chevette uses a torque tube drive the rear mount is extra sensitive to being bolted exactly centered. If you’ve had it out and are replacing it, recheck the centering of the u-joint to the rear yoke. You may have to shift it a little, tighten, test drive, move it in or out, tighten, test drive, repeat. If that doesn’t help, check the balance of the shaft itself. Ringo40488.7264467593November 6, 2010 at 7:22 pm #242745
Denora, welcome to our group and a great hobby your vibration could be a Ujoint more than likely,, with the newest car 22 years oldthe needle bearings can be bad they just turn to a powder or they could have dried and lock up momentarily . that is the first place to look second is the transmission, the rear bearing could be bad with the drive shaft out behind the seal see if you can move the spline if it moves it is the rear bearing you will need to have it replaced and a new rear seal reinstalled ,,the simplest is the rear transmission mount check this FIRST. also the differential same as the rear trans bearing but not likely ,,,,,,,,,, GOOD LUCK Dan
Dan R40490.3431481481December 2, 2010 at 8:12 pm #242746
Thanks to all who answered I am not a good mechanic , but I found some rubber mounts on the tube case that bolts to the frame , and one of them is ripped into.Will take a look at all these things when I get it running again, I am redoing the front body mounts and the dash board this winter.December 2, 2010 at 10:22 pm #242747
Dennis ,Gee I must be GETTING OLD I had looked at your post and never saw Crossville till today your next door…….. Dan R ..Sevierville Dan R40514.9341898148December 3, 2010 at 10:07 am #242748
I am new at this computer stuff and get lost on how to use club web site. E- mail is Boatblue18@ yahoo.com
DennisDecember 3, 2010 at 10:53 am #242749Mark HendricksonParticipant
Is the car a manual or automatic?
You said, “I get a vibration in the drive train when starting out”. If that means when releasing the clutch, it could be clutch chatter from a few different causes.
Does it only happen as you “start out”?
Rotted mounts cannot help either.December 6, 2010 at 12:22 pm #242750
The transmission is a 180 Automatic, the vib. in when starting out fast for a quick start at intersections.
denoraDecember 6, 2010 at 4:02 pm #242751
Dennis, before you rebuild try Lucas transmission additive ,,it has worked for me many times, with many cars ,Advance auto and many others have it … DanDecember 6, 2010 at 7:20 pm #242752edward ericsonParticipant
And, as everyone knows, Lucas stuff was original equipment in all MGs.
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