Oil and Filter Change
in [Technical]
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From: Built_Well on 24 Nov 2007 10:00 I wrote: > I was at Super Walmart yesterday picking up a few things. > I don't like regular Walmarts, but Super Walmarts are > a totally different story. If you've never shopped at > a Super Walmart, you've never shopped at Walmart. > > Anyway, I happened to see 2 auto techs using torque > wrenches on an '05 or '06 Camry. The techs were following > each other. I asked them about this. They said it's > Walmart's policy to have two different people torque > each wheel's lug nuts to final torque. And after > they do that, one drives the car in the back lot doing > one or two figure-8's, and then uses a torque wrench for > the /third/ time to torque the wheels. > > I asked why Walmart is so meticulous. The tech said > it was for legal purposes to make sure a wheel doesn't > fly off. I wonder if Walmart got sued once? > > The fellas first used a torque stick attached to an > impact/air wrench, then torqued the wheels 3 separate > times by 2 different people using torque wrenches. > And of course, the car was driven in a figure-8 before > the third and final torquing. That's commitment! ======== As I've said before, my dealer didn't use a torque wrench even once. I can't say he used a regular ole pneumatic air wrench with torque stick because the tool my dealer's tech was using did not look like a drill at all. Instead it looked like a stainless steel ratchet with a possible torque stick attached to it. It was automatic, but I'm guessing it worked on electricity instead of air/pneumatically. Do those tools have a special name? Can they actually be as good as torque wrenches?
From: Ralph Mowery on 24 Nov 2007 10:20 "Built_Well" <built_well_toyota(a)hotmail.com> wrote in message news:4748355b$0$68451$892e0abb(a)auth.newsreader.octanews.com... > that, one drives the car in the back lot doing > one or two figure-8's, and then uses a torque wrench for > the /third/ time to torque the wheels. > > I asked why Walmart is so meticulous. The tech said > it was for legal purposes to make sure a wheel doesn't > fly off. I wonder if Walmart got sued once? > > The fellas first used a torque stick attached to an > impact/air wrench, then torqued the wheels 3 separate > times by 2 different people using torque wrenches. > And of course, the car was driven in a figure-8 before > the third and final torquing. That's commitment! > About 1970 I worked at a Sears store changing tires. Radials were just comming into use. The salesman told a guy that they had to be installed in sets of 4 or atleast in pairs of 2. The guy insisted he only wanted one on the front of his car. One was installed. About 10 minuits later he cam back and bought another tire to match. He said he could not keep it in the road with that one radial on the frount and wanted both moved to the back. I did that and when I took the wheel cover off the radial that was installed, the lug nuts were backed off about half way. I did not say anyting about that to him. At that time we had several impact wrenches and found out one of them wasnot torquing the nuts much over hand tight. Just lucky he did not take off down the interstate and have that wheel fall off.
From: Retired VIP on 24 Nov 2007 12:00 On Sat, 24 Nov 2007 10:20:20 -0500, "Ralph Mowery" <rmowery28146(a)earthlink.net> wrote: > >"Built_Well" <built_well_toyota(a)hotmail.com> wrote in message >news:4748355b$0$68451$892e0abb(a)auth.newsreader.octanews.com... >> >that, one drives the car in the back lot doing >> one or two figure-8's, and then uses a torque wrench for >> the /third/ time to torque the wheels. >> >> I asked why Walmart is so meticulous. The tech said >> it was for legal purposes to make sure a wheel doesn't >> fly off. I wonder if Walmart got sued once? >> >> The fellas first used a torque stick attached to an >> impact/air wrench, then torqued the wheels 3 separate >> times by 2 different people using torque wrenches. >> And of course, the car was driven in a figure-8 before >> the third and final torquing. That's commitment! >> > >About 1970 I worked at a Sears store changing tires. Radials were just >comming into use. The salesman told a guy that they had to be installed in >sets of 4 or atleast in pairs of 2. The guy insisted he only wanted one on >the front of his car. One was installed. About 10 minuits later he cam >back and bought another tire to match. He said he could not keep it in the >road with that one radial on the frount and wanted both moved to the back. >I did that and when I took the wheel cover off the radial that was >installed, the lug nuts were backed off about half way. I did not say >anyting about that to him. > >At that time we had several impact wrenches and found out one of them wasnot >torquing the nuts much over hand tight. Just lucky he did not take off down >the interstate and have that wheel fall off. > > Did you have to replace the studs? Dinging up threads with a loose wheel only takes a moment. The tech installing the tire must not have paid any attention to what he was doing. He should have been able to tell that the impact wrench he was using wasn't torquing right. Jack
From: Ray O on 24 Nov 2007 13:18 "Built_Well" <built_well_toyota(a)hotmail.com> wrote in message news:47483c12$0$68474$892e0abb(a)auth.newsreader.octanews.com... > > I wrote: > >> I was at Super Walmart yesterday picking up a few things. >> I don't like regular Walmarts, but Super Walmarts are >> a totally different story. If you've never shopped at >> a Super Walmart, you've never shopped at Walmart. >> >> Anyway, I happened to see 2 auto techs using torque >> wrenches on an '05 or '06 Camry. The techs were following >> each other. I asked them about this. They said it's >> Walmart's policy to have two different people torque >> each wheel's lug nuts to final torque. And after >> they do that, one drives the car in the back lot doing >> one or two figure-8's, and then uses a torque wrench for >> the /third/ time to torque the wheels. >> >> I asked why Walmart is so meticulous. The tech said >> it was for legal purposes to make sure a wheel doesn't >> fly off. I wonder if Walmart got sued once? >> >> The fellas first used a torque stick attached to an >> impact/air wrench, then torqued the wheels 3 separate >> times by 2 different people using torque wrenches. >> And of course, the car was driven in a figure-8 before >> the third and final torquing. That's commitment! > ======== > > As I've said before, my dealer didn't use a > torque wrench even once. I can't say he used a > regular ole pneumatic air wrench with torque > stick because the tool my dealer's tech was using > did not look like a drill at all. Instead it looked > like a stainless steel ratchet with a possible > torque stick attached to it. It was automatic, > but I'm guessing it worked on electricity instead > of air/pneumatically. > > Do those tools have a special name? Can they > actually be as good as torque wrenches? ********* The difference between and impact gun an a powered ratchet is that an impact gun has hammers and an anvil. The hammers strike or impact the anvil, which turns the shaft, and the blows from the hammers striking the anvil generate more torque than a motor or turbine spinning the shaft. The difference is basically the same as the difference between a hammer drill and a rotary drill. Pneumatic impact guns used in automotive applications generally come in one of 2 configurations. One looks like a drill and is the one used most often on wheel lug nuts because the handle allows for a more comfortable grip, and the other looks like a rectangular box with a paddle on one surface. Pushing the paddle one way or the other allows easier changing of direction, and the box without the pistol grip allows reaching in tighter spaces. The torque generated by an impact gun depends on air volume, air pressure, and the size of the hammers and anvil. A powered ratchet does not generate as much torque as an impact gun, and when the fastener is tightened, the ratchet has a tendency to spin in the opposite direction, something the impact gun doesn't do. I bet you saw a technician using an air ratchet to run the lug nuts down to the wheel since the air ratchet doesn't generate enough torque to over-tighten the lug nuts, and then tightening the lug nuts with a torque wrench. -- Ray O (correct punctuation to reply)
From: Mark A on 24 Nov 2007 16:31
"Ray O" <rokigawaATtristarassociatesDOTcom> wrote in message > I bet you saw a technician using an air ratchet to run the lug nuts down > to the wheel since the air ratchet doesn't generate enough torque to > over-tighten the lug nuts, and then tightening the lug nuts with a torque > wrench. > -- > Ray O I bet you are fanaticizing again in order to make excuses for lousy dealer service. |