rivera11 Posted July 25, 2014 Report Share Posted July 25, 2014 I replaced clutch, pressure plate & t/o bearing..now i have vibration when i drive `46 dodge why//// Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted July 25, 2014 Report Share Posted July 25, 2014 Did you mark your driveshaft positioning prior to disassembly and re-install it the same way you removed it? 1 Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted July 25, 2014 Report Share Posted July 25, 2014 Must have pulled the driveshaft out when replacing those parts. Possibly got the U joints out of phase? Quote Link to comment Share on other sites More sharing options...
William Davey Posted July 25, 2014 Report Share Posted July 25, 2014 First, narrow down the location of the vibration. Drive at a speed that causes the vibration. Push in the clutch and let the engine drop to an idle. Still vibrating? Yes = something drive shaft related. No = something engine/clutch related. My guess is an out of balance pressure plate. I replaced clutch/ rebuilt pressure plate and t/o bearing in a Ford truck and the thing would shake you off the seat at 2500 rpm's. Replaced the rebuilt pressure plate with a new pressure plate and the vibration was gone. 1 Quote Link to comment Share on other sites More sharing options...
Young Ed Posted July 25, 2014 Report Share Posted July 25, 2014 Must have pulled the driveshaft out when replacing those parts. Possibly got the U joints out of phase? That is impossible on most of these old mopars. Some do have a more conventional ujoint where it is possible though. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted July 25, 2014 Report Share Posted July 25, 2014 (edited) I would recommend that on top of rotating your driveshaft that you also go back and check that the tranny is flat and securely tightened to the bell and if you disturbed the bell on the block that it also is tight and flush fit..double check your work...also ensure that you got the rear mounts located properly and if they were soft and compressed that you did not inadvertently shift the tranny left or right knocking your driveline out of phase. Edited July 25, 2014 by Plymouthy Adams 1 Quote Link to comment Share on other sites More sharing options...
grady hawkins Posted July 26, 2014 Report Share Posted July 26, 2014 I had a similar problem and corrected it with motor mount replacements Quote Link to comment Share on other sites More sharing options...
rivera11 Posted July 26, 2014 Author Report Share Posted July 26, 2014 guess I`ll have to rotate the drive shaft first.. also is there a way to use my 12 volt timing lite on the 6 volt positive ground system? thanks for all the ideas Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted July 26, 2014 Report Share Posted July 26, 2014 just use a modern car 12 volt battery to power your light separate from the car...all you need from your vehicle is trigger for the light...odds are that is induction unless you using a really old light and then it still does not matter..just T your induction per old style light... 1 Quote Link to comment Share on other sites More sharing options...
Niel Hoback Posted July 26, 2014 Report Share Posted July 26, 2014 Some Craftsman timing lights don't care and work on 6 or 12 volts. Try yours and see if it works, it won't hurt it if it doesn't. Quote Link to comment Share on other sites More sharing options...
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