dceratti
Member
i have a 1969 dodge dart 318 904 trans 71/4 rear. vibrates in park vibrates in gear it gets smoother at a higher rpm I've checked the drive shaft and the torque converter timing is on, what could it be?
driveline vibration
- Thread starter dceratti
- Start date
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Bad Harmonic Balancer? Sometimes the outer ring "slips" even if it doesn't look bad.
Possibly someone previously changed Torque Converter and/or Flex Plate from an external balanced engine?
Though I would expect that to get worse with speed.
1 cylinder misfiring maybe?
Possibly someone previously changed Torque Converter and/or Flex Plate from an external balanced engine?
Though I would expect that to get worse with speed.
1 cylinder misfiring maybe?
dceratti
Member
i checked and theres no weights on the torque and theres no weights on it
Early a body
Well-Known Member
How long has this been going on? Did you do any work then the vibration appeared.
How is your timing, what is your base timing set at? Is the timing (mark) jumping around at idle in gear?
Motor mounts? Transmission mount? Take the transmission tailshaft and try to move it- if it moved your trans mount is bad. and the tans is sitting on the crossmember. Does it do it when you are turning
since it does it in park, its not the driveshaft. I would be surprised if its the tc too.
How is your timing, what is your base timing set at? Is the timing (mark) jumping around at idle in gear?
Motor mounts? Transmission mount? Take the transmission tailshaft and try to move it- if it moved your trans mount is bad. and the tans is sitting on the crossmember. Does it do it when you are turning
since it does it in park, its not the driveshaft. I would be surprised if its the tc too.
dceratti
Member
its been doing it for a while i haven't changed anythingand the timeing is on i have it at 10 before
Has the engine ever been out? Or is this the orginal engine? The balancer on my '72 318 was totally junk on the orginal engine. If it's the orginal engine, guessing that the timing chain isn't in the greatest shape either. Overhaul time.
dceratti
Member
dceratti
Member
no not orignal its a 70 factory warranty engine supposedly has 50k miles in it
512Stroker
We are all here because we are not all there.
Take the accessory drive belts off and try it in park. Dont over heat the engine.
May be a bad fan and/or water pump.
Busted or sagging motor mounts?
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