engine vibration

[bikejunk]

just lerned more in the last 10 min. about A engines than I ever knew before thanks!!

[swede]

Originally Posted by tbirdtbird

Tom, you are the wizard of special tools and jigs; what is your solution to my para. # 4 above? dave

....and I too never met an A that didn't vibrate between 45-50....but (and no one believes me haha) that harmonic went away when I installed elctronic ignition (FSI)....go figure....

I just got my 1931 Model A deluxe coupe that needed complete wire job. That is done and after it did not start I read all you guys and thanks a million and now it starts, but at 15 miles an hour I get a vibration from the motor area. The engine idles fine and runs smooth until it revs up and then the vibration. I have timed it 3 times to make sure I did it according to the forum and Henry's manual. The carb has been adjusted according to the manual and know do not what to think.
Monte, from Bow, Washington

[Tom Wesenberg]

My 29 Tudor was smooth at idle but vibrated bad at 15 MPH and above. Turns out the center babbit was completely gone and laying in the bottom of the oil pan.

[bobpo1]

Originally Posted by bikejunk

just lerned more in the last 10 min. about A engines than I ever knew before thanks!!

I'm with you on this one bikejunk.....

[James Rogers]

Ever thought it might be the universal joint?

[Dave in MN]

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[QUOTE=tbirdtbird;831014]Tom, you are the wizard of special tools and jigs; what is your solution to my para. # 4 above? dave

Torque the rear main bearing bolts....Your comment about setting up a bolt...and how it feels to your arms is the only method I know of. I do not have a wrench that works magic in the limited space there is to work in.
And you are right...after many engines, your arm knows you are close on the torque.
Good Day