"Scott" wrote in message
. cable.rogers.com...
Hi, I was wondering if anyone had any ideas about how to reduce the
noise coming from my furnace. Usually there's some steady noise, making
it sound kind of like an old locomotive in the distance. Occasionally,
it sounds like it's banging around. When that happens I'll open
it up and give a little nudge to the motor/blower assembly until it's in
a spot where it doesn't rattle so badly. I'll have to do that maybe
once a month usually, but sometimes more.
I think my trying to describe it might confuse things, so I took some
pictures. It's an older furnace from an Ottawa company that I think no
longer exists called "Beach Foundry Limited." There's a service sticker
that has a tune up or something done in 1983, so it's at least that old.
Here are the pictures:
http://ca.geocities.com/cndscott808/furnace/
Short of replacing it, does something need to be oiled,
adjusted/lined-up, padded... ? to help keep it quiet?
Thanks,
Scott
This is Turtle.
1) first your gas valve you have has not been used since 1972 or before models
of furnaces. So it's got to be made before 1972 atleast.
2) The Belt is not lined up with the motor pulley and the blower pulley. It is
off set some what. This will cause a pulling of the blower shaft on the bearings
of the blower. for short metal sound or grinding of metal on metal.
3) The pulley on the motor seems to be just a little bigger than the standard
pulley sizes and will cause the blower to run at a higher R.P.M. than it was
designed to run at. This should not be a problem for it will just move more air.
4) The rails at the bottom of the blower housing is not succure at all and it
will move back and forth or from side to side to cause a vibration noise when
ever it wants to and where it is setting at the minute. Also the rails or the
blower is not all the way back in the slot where it should be to make the blower
discharge be totally in line with the hole of the furnace to blow the air into
the fire chamber. You need to slide it all the way back to make the slide at the
bottom to be even and then succure it with some screws or nuts and bolts but do
bend the rail back to match the outer rail to take up any gaps.
5) Now I can't touch the belt to see how tight it is but it just look to me it
is too tight for the old blower shaft bearings that are worn some and most of
the time you can't tighten up the belt properly with out putting pressure on
these older bearings. So loosen the belt a little and see it quiten down some.
6) Now to cut down on noise after sucuring the rails that the blower housing
is in. You need to put some duct tape on the blower housing rails to act as a
cussion for sound when the blower housing rails are slide back in the slot or
rail holder. You want about 2 layers of duct tape to be between the floor of the
furnace and the blower housing rails for it to sit on. This will cut down on a
lot of noise by doing this. Sucure the rails and have the duck tape under it.
If you want to really discuss it post back or e-mail me.
TURTLE
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