<VV> rod/cap orientation

[djtcz at comcast.net]

----- Original Message ----- 

From: "Charles Lee" <Chaz at ProperProper.com> 
Subject: Re: <VV> Removing pistons - parts orientation ? 
.............................................. 
I forgot to notice which way was up and down on the caps, although I can 
find "up and down" for the pistons with my photos. 

Is this importamt ? I think so, but I forgot to make a note when I finally 
got the caps off ! 

Thanks 
Charlie 
------------------------------ 
For pretty much all aircraft, and cars-n-bixe except BMW, the notches for the bearing tangs go on the same side of the rod. 
Which would make them not visible in this picture. 
http://www.cumminscn.com/images/lg061.jpg 


The rod big end is machined with the cap installed and torqued. Flipping the cap would likely result in a big end bore severely out-of-round due to cap shift, to the point it would (hopefull, fortunately) lock the crank. 
Same for main bearing caps in non-Corvair engines. Before I was even old enough to drive a friend's older brother put his Lotus Super Seven's engine together with a main cap or 2 reversed. They towed that thing up and down the street trying to start it, but the engine would not turn.