CJD
Yoda
Offline
I've never taken a TR3 crank to be balanced before. I was sitting here looking at the crank, and it occured to me that it is perfectly symetrical. That got me wondering...I know, that's dangerous. But my question is:
Normally, with the V8's I have worked on, the reciprocating weights and the rotating weights are matched for all the pistons and rods. Then weight is added to the crank journals to equal 1/2 the reciprocating weight + all of the rotating weight. But this applies to an asymetrical crank with 90 degree offset journals.
With a symetrical crank like the TR3, it would seem to me that the reciprocating and rotating weight of the rods and pistons is not a factor. So long as these weights are matched, they will balance themselves out of the equation.
So...can the TR3 crank be balanced by spinning without adding weight to the journals?
Normally, with the V8's I have worked on, the reciprocating weights and the rotating weights are matched for all the pistons and rods. Then weight is added to the crank journals to equal 1/2 the reciprocating weight + all of the rotating weight. But this applies to an asymetrical crank with 90 degree offset journals.
With a symetrical crank like the TR3, it would seem to me that the reciprocating and rotating weight of the rods and pistons is not a factor. So long as these weights are matched, they will balance themselves out of the equation.
So...can the TR3 crank be balanced by spinning without adding weight to the journals?