----- Original Message -----
Sent: Thursday, July 28, 2011 8:58
PM
Subject: [FlyRotary] Re: Flex Plate
Question
The flex plate is a stamping, done in low grade steel. The starter ring
is pressed over the flange, and measured for run out, then welded in a few
places. It is in no sense a precision piece. It only maters that the run out
of the ring gear is within specs (whatever Mazda thinks is OK) and nothing
more. The plate is flexible to the extent that it will bend readily to
accommodate a poor fit to the torque converter, but is not
designed to actually flex in operation, as it will fatigue crack
eventually.
Some run out would be expected, and is of no importance. Should the run
out increase between checks then inspection for cracks is in order.
A check for cracks now would provide a base line for future
inspections.
Lynn E. Hanover
In a message dated 7/27/2011 11:04:04 P.M. Paraguay Standard Time,
clouduster@austin.rr.com writes:
I have about 330 hours of run time on my RX-8
powered RV-7A using the RX-7 flex plate per Tracy. I measured the
runout of the flex plate and it measured +/- 0.006 in. or 0.012 in total
wobble - can anyone tell me if this is too much or what maximum is
acceptable? Can the flex plate be tweaked by prying on the ring gear
to bend it closer to straight?
Dennis Haverlah