Oil and Filter Change
in [Technical]
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From: B A R R Y on 19 Oct 2007 07:21 Built_Well wrote: > The 2 tires you have off the ground are on > the same side of the vehicle--another no-no, according > to the instructions on the jack stand box I read at > Walmart/Sears. zzzzzzzzzzzzzzzzzz... I single point jack my '05 4x4 Tacoma at the Access / Front door gap every time I rotate tires. Lug nuts are loosened and torqued on the ground, the parking brake is set, and the opposite wheels are securely chocked with a total of 4 chocks.
From: cuhulin on 19 Oct 2007 10:49 A lot of people have been hurt or killed working under a car supported by only a jack.Maybe it happens more often than we know. cuhulin
From: Scott Dorsey on 19 Oct 2007 15:20 Built_Well <Built_Well_Toyota(a)hotmail.com> wrote: > >The car ramps available at Walmart are unique. The ramps >are constructed in a way that allows one to fit inside >another. I have a set of ramps like that that I've had for about twenty years now. They came from a locally-owned auto parts store that is long gone. >Each single ramp can support 3,000 pounds, so a pair would be good for >6,000. >But if you stack 2 together (one on top of the other), a set >of 4 ramps can be used to lift the front end tires of >a 12,000-pound vehicle! That's what the stickers on the ramps say, >anyway. I would not believe what the stickers say. Safety margins are your friend. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis."
From: Elle on 19 Oct 2007 16:31 "Scott Dorsey" <kludge(a)panix.com> wrote > Built_Well <Built_Well_Toyota(a)hotmail.com> wrote: >> >>The car ramps available at Walmart are unique. The ramps >>are constructed in a way that allows one to fit inside >>another. > > I have a set of ramps like that that I've had for about > twenty years > now. They came from a locally-owned auto parts store that > is long gone. > >>Each single ramp can support 3,000 pounds, so a pair would >>be good for >>6,000. >>But if you stack 2 together (one on top of the other), a >>set >>of 4 ramps can be used to lift the front end tires of >>a 12,000-pound vehicle! That's what the stickers on the >>ramps say, >>anyway. > > I would not believe what the stickers say. Safety margins > are your friend. I would re-read the stickers. What's claimed above fails the engineering common sense check. Namely, load supporting structures in series ("one on top of the other") can only carry as much weight as the weakest link. A pair stacked one on top of the other should be safe for 3000 lbs. Three stacked one on top of the other is safe for 3000 lbs. Etc.
From: clifto on 19 Oct 2007 16:34
Noozer wrote: > You have the rear wheel up in the air, it's on a jackstand. > > Now you put the front end on the jack and jack it up. > > At this point do you do... > > (a) Crawl under the car to place the jackstand, then swap the tires, then > crawl under the car and remove the jackstand. > - or - > (b) Swap the tires. > > ...then lower the car. > > Seems a lot safer to do (b) I like (c): (c) reach under the car to place the jackstand so that if the jack falls even an inch the jackstand will stop the car from dropping further, then swap the tires, then reach under the car and grab the unencumbered jackstand -- One meter, to within 0.0125% accuracy (off by just under .005 inches): Three feet Three inches Three eights of an inch |