<VV> Fwd: Harmonic Balancer / Solid Pulley on 140

[Tony Underwood]

At 07:05 PM 6/12/2011, Ken Pepke wrote:

>The use of the solid harmonic balancer [really just an inertia 
>wheel] is not all that easy to define.  After literally hundreds of 
>Corvairs going through the junkyard over the years we found more 
>real harmonic balancers than inertia wheels by far.  Most of the 
>inertia wheels came on low hp engines.  Very few on 102hp and 110hp 
>engines.  EVERY broken crankshaft engine had the inertia wheel.
>
>Personally, I see NO reason to use the inertial wheel ... Ever.




The two 'Vair engines I personally had experience with that broke 
cranks both had NO harmonic balancers...   One had a cast (ala 95hp) 
pulley.   The other had an early model stamped steel pulley.   Both 
were 140s which certainly should have had balancers.


I'd be leery of riding around with a 140 that was running a cast or 
stamped pulley instead of a balancer.   For that matter, I'd be leery 
of ANY late model engine that had anything other than a harmonic 
balancer on it.



tony..