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Pelican Technical Article:

Jacking Up Your Car

Time:

20 min

Tab:

$0

Talent:

*

Tools:

2 ton jack, jack stands, jack pad tool

Applicable Models:

Porsche 911 (1965-89)
Porsche 912 (1965-69)
Porsche 930 Turbo (1976-89)

Hot Tip:

Check the condition of the transmission and motor mounts when lifting from underneath the motor

Performance Gain:

Starting point for all work underneath the car

Complementary Modification:

Check front suspension bushings
101 Projects for Your Porsche 911

This article is one in a series that have been released in conjunction with Wayne's book, 101 Projects for Your Porsche 911. The book contains 240 pages of full color projects detailing everything from performance mods to changing your brake pads. With more than 650+ full-color glossy photos accompanying extensive step-by-step procedures, this book is required reading in any Porsche 911 owner's collection. See The Official Book Website for more details.

There are some projects that cannot be performed without elevating the car off the ground. Surprisingly enough, the 911 is one of the few cars where the procedure for raising the car is not completely obvious. Haphazard use of a floor jack can result in some pretty significant and expensive damage to your car. Before you begin raising the car, make sure that you have the wheels of the car blocked so that it can't roll. It's also wise to have your parking brake on as well, and the car placed in first gear. You should always use jack stands in pairs to support the car: not simply the floor jack. Even if you are only lifting the car up for a few minutes, make sure that you place a jack stand loosely underneath the transmission or the motor, just in case the floor jack fails.

If you would like to raise the rear of the car, there are a few methods that you can use. The most common one is to lift the entire car by the bottom of the engine. This will not damage the engine as it is very strong at this point. Do not lift the car at the rear seam where the floor meets the rear firewall. This is not a strong point, and can chassis dent or buckle when the weight of the car is placed on this spot.

Another method of raising the car is to use a floor jack pad. This handy tool is placed in the factory jack holes on each side of the car. The car can be raised in small increments by jacking up one side of the car, supporting it, and then moving to the other side. The ideal place for rear support is the torsion bar covers. It's not recommended to place the jack stands underneath the engine or transmission, as this can lead to instability. The torsion bar covers provide the most possible rigid support of the rear.

It is highly recommended NOT to lift the car by placing your jack underneath the floor of the car. Oil lines and air conditioning hoses run underneath the floor of the car, making them easy targets for being crushed by a floor jack. Lifting the car from an unsupported section of the floor can also lead to a significant dent in your car's floor.

The front of the car can be lifted by either of the two mounting points of the a-arms. Use a block of wood when jacking the car up and be careful not to damage the a-arm when you are using it to lift the car. Also be aware that raising one side of the front of the car will most likely raise the car on the other side, creating a potentially unstable condition.

Once you have the car up in the air and supported on the jack stands, push on the car and see if it is unstable on the jack stands. If the car moves at all, you do not have it properly supported. It is far better for the car to fall off the jack stands while you are pushing on it, then when you are underneath it. Set the floor jack underneath the engine or transmission as yet another redundant support. It is also a wise idea to set up a spare jack stand or two as a precautionary measure against one of them failing.

When you are ready to lower the car, be aware of where you are placing your floor jack. Sometimes you will not be able to easily remove the jack when the car is lowered, or the jack handle may crush or damage an oil line or tube on the way down. Proceed very slowly and also be aware that some floor jacks release very quickly. Also be careful to place the car in gear, or to pull the parking brake before you lower it. The car may have a tendency to roll away right after it's put back on the ground.

The bottom engine sump is one of the best places to jack up your 911.
Figure 1

The bottom engine sump is one of the best places to jack up your 911. Use a rolled up newspaper or a small block of wood in order to avoid scratching or damaging the bottom sump plate. As you begin to lift the engine, check to make sure that the car chassis moves as soon as the engine is lifted. If the transmission mounts or motor mounts are worn out, the engine will lift up slightly before the rest of the car moves.

The best place to support the car is on the torsion bar covers.
Figure 2

The best place to support the car is on the torsion bar covers. Instinct would tend to have you believe that this isn't a very strong spot, but people have been using this as a jack stand support point for many years without a problem.

The jack pad tool is a must for anyone who is planning on working on their 911.
Figure 3

The jack pad tool is a must for anyone who is planning on working on their 911. Its design provides an excellent mounting point for lifting the car without damaging the undercarriage. The factory jack should only be used to change tires - never for working underneath the car.

To jack up the front, make sure that you use a strong, supported point on the car.
Figure 4

To jack up the front, make sure that you use a strong, supported point on the car. The mounting points for the a-arms are excellent locations for the jack. Place a block of wood in-between the jack and the a-arm mounting point to prevent any damage to you're a-arms. If you have a front sway bar that runs along the bottom of the front suspension, make sure that you don't accidentally jack up the car on the bar.

An excellent spot to place the jack stands is underneath the front torsion bar mounting points.
Figure 5

An excellent spot to place the jack stands is underneath the front torsion bar mounting points. Not only is this point very structurally sound, it also fits the top ends of most jack stands very well.

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Comments and Suggestions:
brithebold Comments: sorry SWB=short wheel base 65-68 Tx Bri
June 23, 2016
  Followup from the Pelican Staff: Ah, no problem. Wanted to be sure we were going to be talking about the same thing.

I recall those being tough due to the pan along the bottom. If you place the jack stands at the jacking point, the move supports to the pinch welds of the body, it should be OK. It's tough due to the subframe / suspension being the best points at the body. - Nick at Pelican Parts
 
brithebold Comments: seconding Jeff, where when dropping suspension do you jack a SWB?
June 20, 2016
  Followup from the Pelican Staff: can you define SWB? - Nick at Pelican Parts  
MaxTakeoff Comments: bobdjango says:

I seek the idle adjustment screw on porsche 930 1979, if possible, photograph and accessibility

Thanks Google translate ;
February 2, 2016
  Followup from the Pelican Staff:
I don’t have that info.



I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Wayne at Pelican Parts Comments: One of the first articles on the site!

-Wayne
September 18, 2015
  Followup from the Pelican Staff: Right at the top:

http://www.pelicanparts.com/911/911tech_articles.htm - Nick at Pelican Parts
 
dave Comments: the 1984- 87 911 cqrrera does not have a clearly defined jack point on the front. can you possibly tell me where exactly where and what to jack?
September 7, 2015
  Followup from the Pelican Staff: The jack pad tool sounds like a good option for you. - Nick at Pelican Parts  
bobdjango Comments: je cherche la vis de réglage de ralenti sur porsche 930
de 1979, si possible photo et accessibilité
August 19, 2015
  Followup from the Pelican Staff: Sorry, your question came though scrambled. Any chance of English or at least all letters so i can translate? - Nick at Pelican Parts  
Ron Comments: Hi evereybody , I am installing new front fuel pump on my 1989 930 turbo and just want make sure that wire connection is at the right place red on + side and brown on negative side , is it right thank you in advance
March 29, 2015
  Followup from the Pelican Staff: That is typically the proper connection, however I would just verify with a volt meter: when the red lead of the meter is connected to the red wire from the car and the black lead from the meter is connected to the B- terminal, crank the engine. The volt meter should display battery voltage. That proves that the red wire is the positive connection to the pump. - Casey at Pelican Parts  
GaryC Comments: I have a '89 930 with jacking pads welded to the chassis as introduced that year I believe. This is a squarish pad with center hole that looks like a pin on a specialized floor jack might have. My rear ones have been mangled from towing. Are replacements available??
March 27, 2015
  Followup from the Pelican Staff: Good question, I am not sure. Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
besir660 Comments: Hi everyone,
I am quite new 1977 2.7l coupe and didnt perform any major repair yet, and I also had the questions of how I would lift the car with a scissor lift. I found this picture helpful, I didnt perform the lift yet, but I took the car to the porsche center for an oil change and they indeed used the points on the "C" and "D" axis to lift the car.
November 12, 2014
  Followup from the Pelican Staff: A scissor lift is a little different because the load is centered verse being held from the side, like on a twin post. I have not used a scissor lift in some time. I would say, get the lift pads as spread out on the vehicle chassis as possible to evenly spread the weight. FOllow the instructions that came with the lift.- Nick at Pelican Parts  
Desrojet Comments: Any chance to get a better description for lifting the car with a two post llift? The lift OEM doesn't really provide guidance. Picture perhaps? Im replacing the clutch and having the 915 transmission rebuilt and other minor things from Wayne's bible. All help is appreciated! 1982 911SC.
October 5, 2014
  Followup from the Pelican Staff: We don't currently have that info online.

I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Kraftwerk Comments: 911Jeffs, I have seen images where the jack is lifting the support in front of the fuel tank to change out the "A" arms.. it's a good question which needs further pictures and discussion.
September 8, 2014
  Followup from the Pelican Staff: Thanks for the input on this one. We appreciate the help.
- Nick at Pelican Parts
 
Joe Comments: My 1982 porsche 911sc did not come with the factory jack, missing from tool kit. What type should i buy and carry with me in case i need to jack up the car on the side of the road to repair a flat tire???
September 4, 2014
  Followup from the Pelican Staff: I bet we can find one for you. Give our parts specialists a call at 1-888-280-7799. They can help you find the right jack. - Nick at Pelican Parts  
Giorgio Comments: It was very helpful, thanks a lot you guys!!
May 31, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
ljhcav Comments: The jack pad has a hole in the circular section. Should the jack pad be bolted onto the floor jack hole doesn't seem large enough for much of a bolt or does the leverage point of the square channel and pad lip provide for a secure lift? Just received the tool so haven't tried yet to know.
December 30, 2013
  Followup from the Pelican Staff: The jack pad does not have to be bolted on. However, follow the instructions that came with your jack pad. - Nick at Pelican Parts  
4boer Comments: If I have a two post lift and am dropping the engine, what should the four points be?
September 8, 2013
  Followup from the Pelican Staff: There are hoist lifting points just behind the front wheels on the rocker panel and just in front of the rear wheels. Check your owner's manual to be sure of the instruction that came with your lift. - Nick at Pelican Parts  
edragg4 Comments: Thanks guys. Learned a lot.
August 7, 2013
  Followup from the Pelican Staff: Thanks for the kudos - Kerry at Pelican Parts  
911Jeffs Comments: Wayne- is it possible to post an update to this article if one is replacing the front & rear suspention.
Thanks,
Jeff
December 8, 2012
  Followup from the Pelican Staff: We'll do our best to get an update out there. Thanks for the feedback. - Nick at Pelican Parts  

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