Archived posting to the Leica Users Group, 2001/01/19

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Subject: Re: [Leica] Blueprinting : off topic
From: John Collier <>
Date: Fri, 19 Jan 2001 12:34:48 -0700

You are right on the money but the old way made a better story. The best
rule, to keep people honest, was that any competitor could buy the winners
engine for a fixed price.



> From:
> Dans un courrier daté du 19/01/01 16:15:59 Paris, Madrid,
> a écrit :
> << It is common
> for race winners of restrictive classes to have to remove their heads and
> have the bore and stroke checked.
> "Gosh! I did not realise my engine was 20 cubic inches bigger than stock. It
> must been a factory mistake!"
> John Collier
> Hello John . I think heads are no longer removed to check displacement .
> Now they use another method based on liquid forced by the plug(s) hole
> when the piston is at BTC( bottom dead center ) , while the valves motion
> is stopped by removing the corresponding rockers . Then they mesure
> how much liquid is pushed out of the cylinder by bringing the piston at
> TDC ( top dead center )
> Am I not right ?