front balancer pully on sbf

[ben]

If the crankshaft flywheel and clutch are fully balanced is it still nessary to mount the front balance pully


Ben

 

[Randy V]

Unless the reciprocating assembly has been converted to Internally Balanced from Externally balanced - yes. This is speaking of the harmonic balancer - not necessarily the pulleys themselves.

 

[Lynn Larsen]

Personally, I would not run an engine without a harmonic balancer no matter how it is balanced. BTW, there are harmonic balancers specifically for internally balanced engines.

Lynn

 

[Jac Mac]

Ben,

If your talking about the harmonic damper ( attached by the single large bolt in center of crank ), yes it 'Must' be balanced with the whole assy.

The belt pulley ( 3 or 4 attaching bolts ) is not as critical, but if you have it at balance time have it checked by all means. It pays to do a dummy assy of the motor with all parts prior to balancing, nothing more embarrassing or annoying than finding your combo wont fit/work afterwards.

Jac Mac

 

[John Fitzpatrick]

And mark your flywheel before removing it too. Don't ask.
John