Engine balancing

[Jerry Clayton]

this is a trial upload--if it works notice the 2 pieces of heavy metal to internal balance this crank


On this pic of a rear counter weight you can see two pieces of mallory heavy metal installed into the crank and then a drill point drilling to remove what was then excessive weight--
Engine shops have charts of the weight of drilled holes, weights of different sizes of mallory AND then the differances of the weight of the removed iron and installed mallory--besides the numbers of the hole sizes, its important to know the weight of the mass removed by the POINT of the drill also---and of course theres a differance in 118and 1358 points

[xb-60]

Originally Posted by Jerry Clayton

...notice the 2 pieces of heavy metal to internal balance this crank

On this pic of a rear counter weight you can see two pieces of mallory heavy metal installed into the crank and then a drill point drilling to remove what was then excessive weight...

Thanks Jerry. Yes it sounds simpler than it really is. Is it similar in priciple to balancing tyres/wheels in that a computerized balancing machine tells you the location along the crank and the angle at which the material is added/removed?
Cheers,
Glen