He's talking about metal fatigue regarding the individual corner jacking points. Plus, it's just more work and more time to jack up each corner individually.

And you might as well just come out and say it, Ellen...

 

One time, i got both passenger

 

[QUOTE=elmmx5,Jan 23 2008, 03:19 PM]You mean to say that one of the stiffest convertibles built isn't going to actually break in half like a coat hanger?!

 

the more I think about this the less I would be concerned with jacking a corner of the car.
jacking car presents a DC input into the system, that is monotonic and very gradual. metal just does not tend to fatigue much in this mode. sure you'll get some minor deflection but it is very limited.

now compare that to the forces generated dynamically by coming down the back straight, hammering the brakes torqueing it from side to side and hammering out the next straightaway clipping the sideboard as you go....

I haven't got the data to back it up but i would suspect half a lap does more damage than a lifetime of jack lifts.

 

you'll be dead and buried way before you'll ever see metal fatigue on the jacking points of the s2000

and i don't think erick has any problems jacking up cars - it's not a lot of work at all

 

That is the type of lift I USED TO HAVE - the one buried under all the crap in the "Ellen's Lift" post a couple months ago

I think it lifted the car 36" or so - a good height to fit in most standard garages and do almost any work you would need to access under the car for other than maybe exhaust work could really suck

 

Yeah, I'm not concerned with fatigue from jacking up each corner individually, but that seemed to be what he was implying with the coat hanger analogy. I've always done one corner at a time on my other cars. (I've yet to jack up the S2000, which is why I was asking earlier to find out what's easiest and best recommended)

 

The primary issue with corner jacking is still how in the heck do you get a jack stand under the proper position of car when you are in fact jacking from that exact same pint. You can put the jack stand in a non suggested place, or you can jack from a not suggested place. I fail to see why one would want to do this when you can jack from front center or front back, and not only avoid these safty issues, but also, save time.

 

I'm going to be good I will probably be bad enough this weekend so I should behave the rest of the week. And I don't even have beer to use as an excuse right now

A garage and lift are definitely on MY long term life goals. I think a 6 or 8 bay garage should cover things... with parts storage, paint booth...

 

Yes, that is what I'm saying, in conjunction with frequency, I just don't see it as the best way to go when you are jacking the car up constantly. Maybe fine for occasional flat tire, but other than that, no thanks!

And clearly it is not the way to go when you consider my other two concerns, time and safety.