Jack stand possible work....
 

....just looking for opinions

Would you tackle header / exhaust replacement from jack stand elevation?

If so how high of a lift did you need.....?

What about transmission mount replacement?

Absolutely, in each case.
I haven't measured how high, but I try to top out the smaller jack stands.

All of those projects are easy from jack stands.

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These aren't cheap, but worth every penny IMHO. The car is rock solid. I justified the expense against what I saved from the quote my indie gave me for flushing the coolant on our two cars. They have more than paid for themselves. I still keep a couple of wheels under somewhere as backup.

Liftbars

http://986forum.com/forums/uploads02...1540747947.jpg

You can do almost anything under with jack stands, it’s just tight. If you have access to a lift it’s MUCH easier. We have a DIY shop here that is basically a shop rental, lifts, tools and all. Absolutely worth the 25 an hour for some jobs. Check to see if you might have a similar shop in your area.

I didn’t replace my headers but I did my exhaust with jack stands, no problem. I also put wheels or something else under as a precaution but my stands are pretty solid.

What is the maximum recommended time one can leave the car on stands with the wheels off?

Any danger of unibody deformation?

These look good compared to the twisting and wrenching I do to get the car up

Good to hear! You can never be too safe under a car.

On this week's episode of Garage Squad on Velocity channel, they featured a build for a guy who had his car on jack stands and it fell on him. He was then in a wheel chair for life. Don't ever be that guy.

OK

http://986forum.com/forums/uploads02...1541357271.jpg

Got these Jackstands from Pelican, Jasco brand I think.


http://986forum.com/forums/uploads02...1541357563.jpg

I can't imagine deforming a unibody using jack stands.

A friend of mine was killed when his '64 Chevy fell on him, so this subject matter is something I take pretty seriously. When I get the car on stands, if there is room I'll also slide the wheels under the car as a safety backup.

Esco jack stands. I've a pair... and will be picking up another, sooner or later.

I always wonder about the cause of these incidents. Is it failure of the stand or the car slipping off?

In the case of Escos shearing (double) of a steel pin has to happen rather than load failing a cast jack stand tooth.

The Escos also have a flat top which I feel is pretty difficult to slip off of.....last time I used them up on all four I recall the set up was pretty robust stability wise. It was getting the car up there to the minimum height without using alternate unibody jacking point that was a bit tricky.

Wow this looks like an ample amount of room for anything. What was your procedure to get that thing way up there? What is the lift spec on you jack?

Those look like Rhino ramps up front. Is there enough lip at the front to keep it from rolling off? Were some serious chalks used

I suppose you used the rear jacking points to put ramps under the front tires one side at a time. Then using the rear lower Control arms get stands at minimum height under the two rear jacking points. Then using the central location moved the rear up one position at a time.

I suppose one could use the rear lower control arms as well to get all the way up.....

By the way Pro........nothing better than a flawless yellow 2000S:D. Nice car man!

Thanks for the advise.....I have to admit that I am always uneasy under a car on stands

Just bought a quickjack....5000 model. Best thing ever.

Thanks
 

thx for this pic. I have a pair of these jack stands and preparing to raise my 986S for an engine swap. This pic answers my question of how high? Guess I don't need the 2X12 I was thinking about placing beneath the ESCOs. What kind if cart (height) did you use to roll it away?
Thx!

I've got 4 Esco stands and i can get the car on them with two lifts of the jack onto the lowest setting, with a 3rd lift if I want higher. Then i put the jack and a 6 ton harbor freight stand near where i am working. I have replaced exhaust and header with this configuration.

The ESCO’s are the bee’s knee’s of jack stands. Simply some of the best. Absolutely worth it.

Correct, NEVER too safe!

One thing I would NEVER use crawling under a car are those "lift bars". Have seen them in use and completely understand desired concept but no thanks. If one corner fails or pin slips out, the entire side has more likelihood of coming down. Better hope a jack stand catches somewhere on body and holds until whoever is under scoots out but :eek: if not. Separate and secure contact points are much safer in my opinion. /soapbox

Saw same Garage Squad episode as Stone and caught mention of accident w lifted car but missed detail specifying jack stands. Stands or not, that guy is darn lucky to be alive. Similarly, a year or so ago Velocity aired an episode of Fantomworks I decided to watch... IMNSHO Mark from GYC is marginally (ok, a bit more than marginally) less appealing to watch than Drama Dan.

Anyhow, Drama Dan & co prepped a car (Mustang resto-mod of some sort as I recall) for SEMA. Upon show floor arrival something happened to one of the coilovers. Their panties were all bunched trying to find someone w a jack (really at a car show? :rolleyes:) so they could fix issue. Next scene shows Dan clearly crawling under car only jack supported. Couldn't believe my eyes. Thought he was redeeming himself when he started saying how dangerous it was to work on a car like that... but then pissed all away by relating danger only to state of spring vis-a-vis coilover and not fact car was only being jack supported. Really surprised Velocity aired that portion...

In any event, please ALL be extra careful working under a raised car. Double and triple check it's solid, not just jack supported w/ at least one additional failsafe back up... two are evenbetter.

Good luck :)

I used a 500lb capacity "lift table" I got from Harbor Freight which would lower to about 10" above the floor so I had to remove muffler & rear bumper etc.

Echo this
 

The only stands I have ever felt really safe under

I always keep the jack in a location as well. On a level floor, car level and the jack stands where they belong, a Boxster is pretty bombproof really. Getting the jack stands in the right place under the jack points is a funky proposition though, but not too bad.

Bringin this one back:

What is the maximum recommended time one can leave the car on stands with the wheels off?

-What suspension issue can result..

Allowing the suspension to hang exposes sections of the strut shaft that are normally inside the strut when the car is on the ground. Left exposed too long, these can develop corrosion that then ruins the seals inside the strut housing when the car comes down, resulting in strut cartridge leaking and failure. And before you ask, no, you cannot get at the shaft to spray protectant on them; they are covered by the strut boots.

If the car is inside a temperature-controlled, dry facility, the car can be up in the air for quite a while before this develops. If the facility is unheated or damp, the time frame becomes much shorter.

Thank you. So it is an oxidation of metal timeline and even with the engine out it needs to be back on wheels as soon as practical. I would suppose that all shock strut types are susceptible. I have PSS9s. I dont know how easy it is to get into the boot

This process takes days or months ?

Depends upon too many "local factors" to give a precise prediction; is the facility unheated and located in damp environment, or heated and in a dry environment? Is it in an environment near salt water? The components inside the struts, namely the strut shafts. were never designed to see prolonged exposure to moisture, some can start to develop evidence of surface corrosion in relatively short order given the right conditions.

Porsche saw enough problems associated with damage from storing the cars with unloaded suspensions that they put out a TSB on the subject, warning dealers that they should not warranty any parts that were damaged because of this issue. Other OEM's have similar policies in place as well.