Installed a newly rebuilt engine while painting the car. The engine is running fine and seems to be okay.
Here's what happens..
For a back ground the only thing changed is the engine. The tires, wheels and their locations, the tranny, drive shaft, ect. the same place and part.
At some revolutions the cars shakes. I thought it might be the exhaust hitting the frame, it isn't. Then I though may be the engine was missing causing an miss vibration, can't find any problems with the plugs, carbs, etc.. Cam has no warn lobes. Compression is equal at 120 lbs.
Here's what I've tried... I get up to 45 MPH. and the shut off the engine and coast it vibrates badly all the way until the car stops. Thought it might be the pilot bearing being loose but I shut off the engine put it in neutral which should stop the clutch from turning. So I don't think that's the problem.
Do you think the back half of the tranny could have a problem? Bearing, alignment, ???
Any other ideas would be appreciated...
Here's what happens..
For a back ground the only thing changed is the engine. The tires, wheels and their locations, the tranny, drive shaft, ect. the same place and part.
At some revolutions the cars shakes. I thought it might be the exhaust hitting the frame, it isn't. Then I though may be the engine was missing causing an miss vibration, can't find any problems with the plugs, carbs, etc.. Cam has no warn lobes. Compression is equal at 120 lbs.
Here's what I've tried... I get up to 45 MPH. and the shut off the engine and coast it vibrates badly all the way until the car stops. Thought it might be the pilot bearing being loose but I shut off the engine put it in neutral which should stop the clutch from turning. So I don't think that's the problem.
Do you think the back half of the tranny could have a problem? Bearing, alignment, ???
Any other ideas would be appreciated...