Jerry Hey wrote:

Paul,  the prototype throttle body is nearly finished.  We are adding a
throttle stop to set the idle,  and a way of securing the butterfly
arm, so that it cannot loosen accidentally.  I will post pics when this
is done.  The next step is to install these in my housings.  I am
worried about blow by around the outside of the insert.  Is this a
potential serious issue?  I have never heard anyone mention it. Of
course the  inserts will be glued in place with Devcon but can I rely
on this only for a perfect seal?  Should the inserts be made a tight
fit and pressed in place.  If I do this do  you have any guide lines?
What happens to the fit when the engine reaches operating temps?
Thermo expansion would differ between the aluminum body and the rotor
housing.   Lynn,  as a man who has been there and done it,  I would
like to hear your thoughts.  Jerry

 
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