Harmonic Vibration

[FEF]

In a previous thread it was mentioned that odd harmonic vibrations might be casued by loose belts. However, I've found that that's not the case.

The engine idles a bit rough. Could a bad injector cause the vibration?

What's a bad ballancer feel like?

[john8662]

If the Balancer is wabbling (watch engine running) it should run pretty even, then it could be bad.

Yep, injectors and AIR IN THE FUEL will cause it to run poorly, have a shake, etc.

Other engine conditions can also exist to make it run poorly, lack of compression (cylinder seal, valves)....