engine balancing ?

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engine balancing ?

Post  powerstrokeace on December 29th 2013, 11:29 am

Guy's i getting ready to get an engine balanced but here's my problem. i have 2 different flexplates depending on which car it may go in. So i was assuming that since it is internally balance the flexplate where neutral balanced? or am i all wet. I cant get my balancing guy on the phone... Evil or Very Mad 

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Re: engine balancing ?

Post  Lem Evans on December 29th 2013, 12:03 pm

The plates should be neutral .

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Re: engine balancing ?

Post  LivermoreDave on December 29th 2013, 9:35 pm

powerstrokeace wrote:Guy's i getting ready to get an engine balanced but here's my problem. i have 2 different flexplates depending on which car it may go in. So i was assuming that since it is internally balance the flexplate where neutral balanced? or am i all wet. I cant get my balancing guy on the phone... Evil or Very Mad 

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Lem Evans wrote:The plates should be neutral .

Sometimes assuming and should be's don't get the job done! Have them both balanced with the assembly.

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Re: engine balancing ?

Post  Lem Evans on December 29th 2013, 10:02 pm

If a guy wanted to make sure the plate was neutral....he'd need to have it checked independent of the assy. or bolted on and spun after the assy. was balanced....not balanced 'with' the assy.

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Re: engine balancing ?

Post  cool40 on December 29th 2013, 10:57 pm

if neither of your flexplates have a weight on them and your new engine is gona be internal balance it'll work.
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Re: engine balancing ?

Post  powerstrokeace on December 29th 2013, 11:03 pm

Both file plate have no weight on them. Just for grins I will call ATI and JW tommorw and double check


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Re: engine balancing ?

Post  LivermoreDave on December 29th 2013, 11:49 pm

I suppose if one needs to learn if a flywheel/flexplate is "neutral balanced" that could be an option. Then you could sit it in the corner and mark it "neutral balance" for all to see. However if one needs to understand the effects of any flywheel/flexplate offering to a rotating assembly it should be balanced along with the assembly (crankshaft, bob weights, balancer, flywheel/flexplate and etc.) during the balancing procedure, as the balancer (harmonic balancer, damper or hub) is. If your assembly is scheduled to be balanced, why not balance all rotating parts as one, as the parts will be assembled in application?

A simple comparison would be, the balancing of a wheel, valve stem and tire without assuring the balance of the brake rotor/drum and bearings.

...  scratch  ...
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Re: engine balancing ?

Post  powerstrokeace on December 29th 2013, 11:53 pm

Dave I get it. But each car has different motor plates and flex plates. And are both currently assemble running cars. This is a back up motor for either if need be.


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Re: engine balancing ?

Post  LivermoreDave on December 30th 2013, 11:09 am

powerstrokeace wrote:Guy's i getting ready to get an engine balanced but here's my problem. i have 2 different flexplates depending on which car it may go in. So i was assuming that since it is internally balance the flexplate where neutral balanced? or am i all wet. I cant get my balancing guy on the phone... Evil or Very Mad  Ace

powerstrokeace wrote:Dave I get it. But each car has different motor  plates and flex plates. And are both currently assemble running cars. This is a back up motor for either if need be. Ace

Ace your dilemma now is a bit more understandable. As you are aware and has been suggested in other replies to your OP a flywheel/flexplate can be "spun" individually and the balance of the part verified. In your situation I would suggest "spinning" the flywheel/flexplate to verify it's balance. I see "out of the box" and manufacture labeled items incorrect more times than one might expect. There is no better means of balancing a rotating assembly than to include all part values within the balancing process, regardless the technique one chooses.

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