semi truck

Hey, I've got a car hauling trailer that was used to haul to/from car auction fors sale ! Holds 6 -8 cars...recent safety,new brakes, etc. First $1000 can haul it away....

Jay

On Sat, 22 Jan 2005 14:39:05 -0500, the inscrutable "j.b. miller" spake:

"Haul it away"?

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So what are the details? Year? make? model? mileage? cab-over or conventional? sleeper? 2 or 3 axel?

All I know is it's an '82 International conventional. Supposedly what's wrong with it is something in the gearbox to speed the gears when you're shifting, but if you know what you're doing you can get around it. It was a California truck, last inspected in 2002. It's located in Seattle.

GWE

Grant Erwin wrote in news: snipped-for-privacy@corp.supernews.com:

Synchro's....and they are not 'required' for the vehicle to operate. You just have to know how to shift properly :)

sounds normal to me

whats your contact info

What synchros??? None of the big rigs have synchronized trannys, can you say double clutch??

What double clutch? Good drivers just match speeds and jam the gears together! Clutch is just used to get the truck started.

-- Why isn't there an Ozone Hole at the NORTH Pole?

Why, Bob? Do you want one?

from

"The difference between ozone content in the two polar regions is caused by dissimilar weather patterns. The Antarctic continent is a very large land mass surrounded by oceans. This symmetrical condition produces very low stratospheric temperatures within a meteorologically isolated region, the so-called polar vortex, which extends from about 65°S to the pole. The cold temperatures lead in turn to the formation of clouds, known as polar stratospheric clouds. These clouds provide surfaces that promote production of forms of chlorine and bromine that are chemically active and can rapidly destroy ozone. The conditions that maintain elevated levels of chemically active chlorine and bromine persist into September and October in Antarctica, when sunlight returns over the region to initiate ozone depletion.

The winter meteorological conditions in the Northern Hemisphere, just like in the Southern Hemisphere, lead to the formation of an isolated region bounded by strong winds, in which the temperature is also cold enough for polar stratospheric clouds to form. However, the geographic symmetry about the North Pole is less than about the South Pole. As a result, large-scale weather systems disturb the wind flow, making it less stable over the Arctic region than over the Antarctic continent. These disturbances prevent the temperature in the Arctic stratosphere from being as cold as in the Antarctic stratosphere, and fewer polar stratospheric clouds are therefore formed. Nevertheless, chemically active chlorine and bromine compounds are also formed over the Arctic, as they are over Antarctica, from reactions at the surface of the clouds. But the cold conditions rarely persist into March, when sufficient sunlight is available to initiate large ozone depletion."

...but whadd'a they know?

On Mon, 24 Jan 2005 11:35:51 +1100, the inscrutable "Jeff R." spake:

So cold, not people, creates polar strat clouds which form the chemicals which destroy the ozone? I wonder if they took the massive Antarctic population explosion into consideration when they decided and published their findings. Wouldn't all that heat and pollution tend to skew their findings a mite? Count me as a skeptic.

They know that people's reactions to the deadly amounts of UV radiation in San Diego has people bundled up against it all year, don't they?

"The largest decreases in ozone during the past 15 years have been observed over Antarctica, especially during each September and October when the ozone hole forms. During the last several years, simultaneous measurements of UV radiation and total ozone have been made at several Antarctic stations. In the late spring, the biologically damaging ultraviolet radiation in parts of the Antarctic continent can exceed that in San Diego, California, where the Sun is much higher above the horizon."

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Probably a Fuller 9spd?

As for synchos and clutching, I'm with the others. You only need a clutch once. For moving off the line. Beyond that, match speeds and jam the gears. I actually can shift better without using the clutch. Let the tranny tell you when you should shift. Bump the throttle and pull, it will pop right out of gear. If upshifting, a little gentle pressure while the revs drop and she will just slide in when you find the spot. Downshift, just give her a little fuel and find the spot. Easy.

JW

Yep, that's the answer! The colder the temp, the more the depletion of the ozone by those chemicals as the balance of the chemical reactions goes towards the elimination of the ozone. Thus the biggeer the hole, the colder it is in that area and since the hole in the South had been growing, it must be that the average temp down there is getting colder! Not exactly the warming trend that the enviromentalists have been screaming about! Also note that the earth's orbit is such that the earth is further away from the sun during the Antartic winter than during the corresponding summer. As a result, the southern hemisphere is going to normally be colder than the northern hemisphere. This is an additional reason why the Artic area doesn't have a full hole form during the winter.

-- Why isn't there an Ozone Hole at the NORTH Pole?

Actually, there are no syncros in the large truck gearboxes. Rather it is a dog setup which is used to let the gears join to each other. Thus the use of the clutch actually removes the ability to easily compare the road speed and the engine speed by the driver for when to engage the gearbox to the desired gear.

-- Why isn't there an Ozone Hole at the NORTH Pole?

On Mon, 24 Jan 2005 10:41:53 -0800, "Bob May" vaguely proposed a theory ......and in reply I say!:

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Huh? There are two causes for the hole aren't there; the gases and the temperature? So it could be getting warmer, but the gases are increasing at a rate sufficient to overcome that.

Most truck transmissions have a five-speed front section with dog clutches, and a separate air-controlled rear section for selecting ranges. 99% of the time that rear section will have a big-assed synchronizer in it. It's likely this synchro is what the first poster was talking about. One easy thing to check that might fix it is a teensy air filter on the right rear of the transmission. It'll get clogged up and restrict the air to the back section's shifter piston, giving the symptoms of a fried synchro. Of course, if it goes long enough like that it'll really fry that synchro, but it's a good first thing to check and easy to do. The friction surface might get a glaze on it, but a quick trip on the interstate will burn that off and let you determine if you fixed anything. If that doesn't fix it, then you have to do real (expensive) repair work. It's possible to pop that back section off without pulling the transmission, but not much fun. Besides, whatever took out the synchronizer probably did damage to the rest of the transmission.