Rebuilt 200 Balance Problems

[Anonymous]

I just dropped in a 200 from a '67 Stang into my '63 Ranchero. The seller said it was rebuilt about 15K miles ago. It runs strong but just about shakes the doors off. I can see the crank pully wobbling around. I may try the pully off my old 200 and see if it makes any difference. Could this be the sign of a bad rebuild? And how much will these types of balance problems lessen the life of the motor/clutch/my bones? Could a higher quality harmonic balancer ease the problem?

Davie

 

[Anonymous]

if it is shaking that bad, i would first check the igniton to see if it is mis-firing at all. Then I would check the cylinder compression using a pressure guage. Then take down the top end to see if there is anything wrong there. If nothing was wrong, I would assume a bad rebuild.

Others will have more info.

Later,
Paul

 

[MustangSix]

Wobbling? Is the balancer ring falling off or is the crank bent?

If the engine fell off the stand onto its nose or if the car it came from was involved in a serious collision, the crank snout could have been tweaked. If that happened, you'll never get it balanced. Sorry.

another possibility, if it was rebuilt using a mix of parts, is that they might have used a mixed set of early and late rods which have considerably different weights.

 

[Anonymous]

:roll: my question is. how did it stay together for the 15k? good luck!!!