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RE: Crooked firewall

I have noticed several people recently having problems with the engine
cylinders/exhausts being too close to the cowling.  In the new instruction
manual it is mentioned to mount the ending slightly off level (pilot side a
tad low I believe)

"Position the engine so that the center of the prop extension is actually
3/8" - 1/2" above the center of the cowl outlet.  This is because the rubber
mounts will sag after a few hours of operation.  Also rotate the pilot's
side of the engine down a 1/2" or so to help with cowl clearance.  If you
don't do this, the top of the cylinder will contact the top cowl."