| Author |
Message |
Terry Springer (Tspringer)
Junior Member
Username: Tspringer
Post Number: 123
Registered: 4-2002
| | Posted on Sunday, July 07, 2002 - 1:52 pm: | |
I have found it easiest to use a block of wood (square, 4" across) on top of the floor jack and I jack from the mateing point between engine and gearbox sumps. This area of the engine/trans casting is reinforced and I cannot fathom it causing a problem. The larger block of wood helps spread the load across the sump, but centered on where the vertical seperation of sumps provides reinforcement. My floorjack does not go low enough to simply slide under the car however, so I use the factory jack to raise one side a bit first. Jacking from the center of the engine allows it to go up even, then I get jack stands under the main frame members where they branch.
So far no troubles doing it this way.... I would certainly not do this without the wood. The standard floor jack pad would allow the full burden of weight to center on a very small section of sump and I would be afraid it would crack the sump cover. With the weight well spread, I feel there is little danger. |
Verell Boaen (Verell)
Junior Member
Username: Verell
Post Number: 164
Registered: 5-2001
| | Posted on Saturday, July 06, 2002 - 10:33 pm: | |
Paul,
My $0.02: I'm not comfortable with the center brace you suggested. I used my brace a couple of times & it now has about a 1/8" - 3/16" bow when I put a straight edge against it. Also, my rear end was quite a bit out of alignment when I had it done last spring. So I've decided to not use it. (Of course it's a bit moot now that I've got a lift).
The brace is just an inverted U, not a box or tubular member. It's possible that I'm being overly cautious here, and the member may have always been bowed. Has anyone got more specific structural information?
I've never looked at the front support plate that Greg suggests, so have no opinion.
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Greg Owens (Owens84qv)
Member
Username: Owens84qv
Post Number: 472
Registered: 10-2001
| | Posted on Saturday, July 06, 2002 - 8:25 pm: | |
For the front, there is a small support plate, maybe 4" x 4", just behind the plate that is un-bolted to reveal the main coolant hoses. I used that plate (with a piece of wood also) as my front jacking point. |
Paul Newman (Newman)
Junior Member
Username: Newman
Post Number: 250
Registered: 12-2001
| | Posted on Saturday, July 06, 2002 - 6:34 pm: | |
I jack the rear up from the center brace that is just behind the gearbox pan. I use a small thin piece of wood on the jack cup so I dont marr the brace. It doesnt flex the brace at all when lifting and I get good height to place the stands under the frame rails at the lower arms. I havent jacked the front up so I cant help you there. |
bill v. (Doc)
New member
Username: Doc
Post Number: 41
Registered: 9-2001
| | Posted on Saturday, July 06, 2002 - 4:14 pm: | |
Within a previous thread on this topic, it was noted that one must incrementally jack a 308 up wheel-by-wheel in order to get it onto jack stands. Isn't there a center point on the rear/ front frame rails where one could use a floor jack? |