<VV> Crank gear issue

[Matt Nall]

The three things I have considered (but don’t know the 
feasibility of) are: 1. drilling and tapping the holes larger.  I am unsure of 
the hardness of the bolts/gear, so is this possible? 2. Is it possible to change 
the crank gear with the engine assembled? 3. Complete teardown and start over. I 
am certainly open to any other thoughts also. Thanks for your input.

Garry Parsley

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1  It is common for racers  to enlarge the holes for  HI HP engines.
2  Crank gear takes 20 ton press!


  It is possible to find a machine shop with  large  enough  machine to set the complete engine on and lock the crank.
But most likely cost prohibitive.


  Cranks  can be removed without complete dis-assembly... 


Unless you really want to rebuild... I'd pull the crank  and find a used one with the same sized journals.. or a reground and use new bearings!



Matt Nall
Charleston, Oregon
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