Sorry, another stem question

I posted the question a few days ago about stem height. I have decided to
lower my stem in small increments until I am about two inches below the top
of my seat (less if it seems warranted). I have done some research on how
to do this but cant seem to get it. The post I read said, for a threaded
fork, to loosen the stem bolt and raise or lower the stem. When I do this
my stem does not move. I am riding a Colnago Masterlight with Campy record
and have a 3T threaded stem. Please help.

One additional question, how often should cleats be changed? I am riding
Carnacs with Time pedals.

Thanks again,

Matt Payne

wrote in message
...
I posted the question a few days ago about stem height. I have
decided to
lower my stem in small increments until I am about two inches below
the top
of my seat (less if it seems warranted). I have done some research on
how
to do this but cant seem to get it. The post I read said, for a
threaded
fork, to loosen the stem bolt and raise or lower the stem. When I do
this
my stem does not move.

Loosen the stem bolt a turn or two and tap it fairly hard with a soft
mallet to loosen the wedge.

Phil Holman