This is driving me crazy. One of my snowthrower's tires has a _really_ slo
w leak. I've pumped it up to like 70lbs and put it under water and there a
re no bubbles. However, if I wait a few weeks sure enough the thing is los
ing air. Nothing like snowthrowing in 10 degree weather with one low tire
pulling to the left, might work well for a Nascar track, not so much for a
straight driveway :-) Any debugging ideas?
Could be porosity in the wheel or tire, not enough to show a bubble, but
enough to seep over time.
I had a wheelbarrow tire in a similar situation. I finally just tossed
it and bought a new wheel and tire at Tractor Supply.
Today 90%+ of snow blower tires are tubeless. A leak around the stem
is VERY common. The rubber hardens with age, and the rim rusts. Pop
out the stem, clean up the rim around the hole, and install a new
stem. Leaking at the bead is also common. Break the bead (you need to
do this on at least one side to replace the stem anyway), clean the
bead with course sandbaler and coat with bead sealer.
I solved the problem for good ( for me) when I bought a track-drive
blower. Solved the problem with the friction drive slipping when it
gets wet too, when I bought that track-drive blower with Hydrostatic
Don't know but mine went flat a couple of years ago and I had to remove
it to inflate it. When I went to use it several months later, it would
not move and taking apart I discovered that little disk that transfers
motion from gears to wheels had fallen off and got lost. Took half day
to fix the damn thing.
Someone had tried it on my old snowblower - the tires kept going flat
so I took them off to fix - they were loaded with tire sealer and were
leaking at the stem. I replaced the stems AND the tires (with deep lug
tires so I didn't need to use chains any more) - about 5 years before
I got rid of it. I then used a small trackdrive Noma for a few years
until I bought my Yamaha Hydro Track drive.
tires has a _really_ slow leak. I've pumped it up
to like 70lbs and put it under water and there are
no bubbles. However, if I wait a few weeks sure
enough the thing is losing air. Nothing like
snowthrowing in 10 degree weather with one low
tire pulling to the left, might work well for
a Nascar track, not so much for a straight
driveway :-) Any debugging ideas?
Try less than 70. If it's a rim leak,
the 70 may be sealing the rim.
If spare wheels are cheaply available ($5 top $10 here) the
simplest solution is to buy one, fit it as needed, and keep the
leaky wheel in the back of the car until you next get to a gas
station and fill it to 70 psi.
I had a car tire losing perhaps 5 pounds a week. If I laid it flat and
applied soapy water, I could find slow leaks, not always at the same
After fooling with it for years, I got "Autoguard Quick Flat Fix" at the
corner store. I'd read that the new stuff is better: doesn't cause
explosions, doesn't damage rubber, doesn't harden. I had the car jacked
up. To distribute the sealer around the bead, I'd rotate the wheel 180
degrees every few minutes. It worked.
Then I got an old mower with a front tire that had been leaking for
years. I couldn't stop it, so I bought another can of Flat Fix. This
time, it was the can with the clear hose to allow me to apply what I
needed. I'd weigh the can, squirt some in the tire, and weigh it again.
I think I applied an ounce. I applied another ounce when the leak
recurred. No more trouble. When the opposite tire began to leak, an
ounce fixed it. I guess it's been a year with no problems. The can is
I had much the same problem. While I pride myself on my ability to
analyze and fix pretty much anything (I'm a Dad - it's what we do!), I'm
just not inclined to spend the time or energy to fix every damn thing in
sight anymore. So I bought an inner tube at Harbor Freight for $2.99.
It probably doesn't make a lot of difference on a snowthrower, but did you
drill the tire? If not, monitor the pressure for a while. You can wind up
with air in the tube, and air within the tubeless tire if the bead seals
while you're inflating the tube. The air within the tire will still slowly
leak out so the pressure within the tube will drop. Sooner or later it will
Drill the tire?? That's foolishness. you need to break the bead to
install the tube. The tube will force 99%+ of the "trapped air" out
before the bead seats. Anyone who says you eed to "drill" a tire to
let the trapped air out has found some pretty good "shit" to smoke!!!
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