I Don't Know Jack! Floor Jacks..
04-27-2018, 09:55 PM
#76
Wanted to get my 991.2 up on all four jack points this weekend.
Have 4 ESCO jack stands, 2 car jacks. Nothing fancy.
I need to know just how safe or detrimental is it to jack the car up from the rear crossmember, forward of the oil pain?
I certainly do not want to damange, or bend any crossmembers, beams, suspension components..
Anyone have personal expereince with this method who can confirm this is a safe place to lift rear?
Have 4 ESCO jack stands, 2 car jacks. Nothing fancy.
I need to know just how safe or detrimental is it to jack the car up from the rear crossmember, forward of the oil pain?
I certainly do not want to damange, or bend any crossmembers, beams, suspension components..
Anyone have personal expereince with this method who can confirm this is a safe place to lift rear?
04-27-2018, 11:09 PM
#77
Plenum has a excellent blog, this one is on jack points
http://plenums.blogspot.com/search?u...&by-date=false
http://plenums.blogspot.com/search?u...&by-date=false
I guess this method just makes me a little nervous about the structural integrity of the cross member involved. Obviously I've never actually jacked up my 991.2 just yet.
What is that crossmember made of? No risk bending, or denting it even if jacked in in the middle like that blog recommends?
04-28-2018, 02:03 AM
#78
I guess this method just makes me a little nervous about the structural integrity of the cross member involved. Obviously I've never actually jacked up my 991.2 just yet.
What is that crossmember made of? No risk bending, or denting it even if jacked in in the middle like that blog recommends?
What is that crossmember made of? No risk bending, or denting it even if jacked in in the middle like that blog recommends?
I have this jack and am able to reach the rear cross member from the rear directly, i.e. without using race ramps and putting blocks under the wheells beforehand. Just slide it under, lift the rear, then put jackstands under the rear jackpoints.
04-28-2018, 10:51 AM
#79
Wanted to get my 991.2 up on all four jack points this weekend.
Have 4 ESCO jack stands, 2 car jacks. Nothing fancy.
I need to know just how safe or detrimental is it to jack the car up from the rear crossmember, forward of the oil pain?
I certainly do not want to damange, or bend any crossmembers, beams, suspension components..
Anyone have personal expereince with this method who can confirm this is a safe place to lift rear?
Have 4 ESCO jack stands, 2 car jacks. Nothing fancy.
I need to know just how safe or detrimental is it to jack the car up from the rear crossmember, forward of the oil pain?
I certainly do not want to damange, or bend any crossmembers, beams, suspension components..
Anyone have personal expereince with this method who can confirm this is a safe place to lift rear?
The following users liked this post:
Wimankid (03-21-2021)
05-13-2018, 04:50 PM
#82
Three Wheelin'
Be careful jacking up the rear on that subframe. I don't know about 997.1, but my 997.2 has an aluminum subframe with all the suspense components hooked up to it. If you solely use the subframe to jack up the rear, consider all weight of the rear, including suspension, engine, partial transmission weight. Say your car is 3200 lbs, that rear subframe has to be able to handle at least 2500 lbs if not more to be able to elevate the rear...SAFELY. I use the rear jack point to elevate the car so that the jack stand can get under the front jack point, then use another jack on the subframe to lighten the load, then with the jack on the rear jack point, then in combination with the jack on the subframe, they share the load to get it high enough for the rear jack stand. Yes, you need 2 jacks. I find you really need 2 jacks to work on anything under the car.
05-13-2018, 11:29 PM
#83
Rennlist Member
I also love Jackpoint stands. Since the OP asked about jacks, I think these Danish ones are considered the best (if price not a barrier):
https://www.pelicanparts.com/catalog...yd1-detail.htm
https://www.pelicanparts.com/catalog...yd1-detail.htm
The following users liked this post:
Catharpin (03-21-2021)
05-13-2018, 11:52 PM
#84
Drifting
Until I make up my mind (if ever) about a lift, I splurged on an AC floor jack. VERY nice, 4400 lb capacity, very low starting height (at least an inch of clearance with my Porsche jack pad), smooth lifting and lowering, and much lighter than my classic Craftsman floor jack.
The following users liked this post:
Catharpin (03-21-2021)
05-14-2018, 12:03 AM
#85
05-14-2018, 06:48 AM
#86
Be careful jacking up the rear on that subframe. I don't know about 997.1, but my 997.2 has an aluminum subframe with all the suspense components hooked up to it. If you solely use the subframe to jack up the rear, consider all weight of the rear, including suspension, engine, partial transmission weight. Say your car is 3200 lbs, that rear subframe has to be able to handle at least 2500 lbs if not more to be able to elevate the rear...SAFELY. I use the rear jack point to elevate the car so that the jack stand can get under the front jack point, then use another jack on the subframe to lighten the load, then with the jack on the rear jack point, then in combination with the jack on the subframe, they share the load to get it high enough for the rear jack stand. Yes, you need 2 jacks. I find you really need 2 jacks to work on anything under the car.
03-20-2021, 08:22 PM
#88
Rennlist Member
What's the problem?? 
03-21-2021, 01:00 AM
#90
Burning Brakes
Only way is AC, Yes it is a bit more up front, but so worth it in the long run.
I have had mine for 20 years and it is still going like a champ. I would have worn out multiple of the "racing aluminum" jacks by now.
Think about what a failure could cost. Chinese jacks and sheet metal "jack stands" are not worth the risk IMO.
I have had mine for 20 years and it is still going like a champ. I would have worn out multiple of the "racing aluminum" jacks by now.
Think about what a failure could cost. Chinese jacks and sheet metal "jack stands" are not worth the risk IMO.