BobK207 wrote:
The first oven door spring broke in the "hook" section?

I would argue that the failure of a tension spring in the hook section
is rather different than the failure of a trosion spring in the spring
section.

btw the time needed to replace both springs is not twice the time
to replace one spring. Better to do both & get it over with.



Engineers depend on the fact that a single item is like

every other item


a rather broad statemtent & surely not correct..................

cheers
Bob

Doesn't matter what kind of spring it is, the
point was that the failure rate of springs is
highly individual. I didn't tell you what part of
the spring failed so what makes you think it was
in the hook section?

Whether one replaces both or one spring depends on
a lot of factors. If you have a technician do it,
then have him replace both. If labor is a problem
for a do it yourselfer, then replace both, but
if labor isn't a problem it doesn't make sense to
replace both. Let's say you replace both, you
will feel really stupid when the replacement for
the one that didn't break needs replacement in a
short time.


Yeah it's a broad statement, but the assumption is
consistency or at least a certain amount of
consistency. Don't read "identical" for what I
said which was "like." There is a lot of
variation allowed with "like." For really
important things, engineers recognize the
variability and use standards that would be met
under minimum conditions. For example, you use
the maximum span stated in the boots for a Douglas
fir 2x10. The amount of deflection will be
(usually) within the standard, but the poor piece
timber will deflect a lot more than a really high
quality one.