Engine balancing deffinition

[rollbar]

Can someone give me the propper deffinition when someone say's that their engine has been balanced?

I get so many different variations to the balance thing & I want to make sure I'm right. 111!!!

Thanks,
RollBar

[jeepsr4ever]

Balancing:

To balance the rotating mass of the lower end of a engine

[pyagid]

as MC said they take all the spinning parts crank, rods, pistons ETC. and make sure they all balance out properly by adding or removing weight. Similiar to the reasons you would balance a car tire. TO avoid any vibrations

here is a good link that explains it

http://www.centuryperformance.com/balancing.asp

-Paul

[rollbar]

Thanks very much,