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#31
10-06-2016, 03:57 PM
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The 3 ton jacks sold by northern tool or similar places weigh close to 80 lbs.
__________________
2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017) 
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#32
10-06-2016, 04:50 PM
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Unless your exact lift is certified by ALI or ETL , it could be more dangerous than a set of ramps. And that would be an actual certification applied by these testing organizations not a manufacturer saying " Tested to ALI ETL standards "
http://www.autolift.org/ali-directory-of-certified-lifts/certified-lift-search/ See my posts 6 and 7 here 2 post lift info The OPs plastic ramps are only 6" high and have a wide base I don't see that a tipping hazard. A set of standard jack stands would be more "tippy" is one tried to put too much lateral load on the car. This isn't a failing of the stands, it is a failing of the person working on the car. And ramps / stands don't work well on an uneven surface / gravel / on a hill.
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#33
10-06-2016, 05:10 PM
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Has anyone here ever used steel rims as cribs?
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'81 300SD
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#34
10-06-2016, 05:48 PM
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A 10' ceiling can work with a hoist though it's a bit minimal. I had 10' at my old shop in Ann Arbor with scissor trusses over the hoist bay - worked OK though you did need to use some caution and a pick-up could only go up just SO high. So this is my second shop with a hoist (so I've had one for about 20 years or so) and at my age I simply couldn't (and wouldn't) do what I do without it. I encourage you to look into it. Best thing since sliced bread.
Dan
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#35
10-06-2016, 07:54 PM
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At the salvage yard stacked flat, but they work better with inflated tires as the edges tend to sink in to the ground. Some places will weld 2 or 3 in a stack. I've used wheels to lower truck bodies / 52 ft semi trailers with an old crank up "rail road" jack that has limited range. The trick is to start with a 15 " then nest a 14" then back to 15" Or use alternating 14 and 13. Using all the same diameter requires welding them together.
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#36
10-06-2016, 09:43 PM
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Love to, would make wrenching so much better under the car, but I'm 6' and unless it's a Lotus Europa, ... I'd like to be able to put my daily on it also, which leaves me with only 4' under the car.
What I need is a toy barn (don't we all?). Quote:
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 Gone to the dark side - Jeff
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#37
10-07-2016, 01:29 PM
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Sam 84 300SD 350K+ miles ( Blue Belle )
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#38
10-07-2016, 01:59 PM
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is a 2 ton jack adequate for a 300d?
__________________
Andrew Montclair, NJ -------------- 1982 300D Turbo 120k Petrol Blue Green
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#39
10-07-2016, 02:07 PM
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If the heavy end isn't over 4,000lbs and it's a reputable brand (properly tested and rated), yes. IIRC the 300D is under 4,000lbs total, you could use a lighter-duty jack.
__________________
Gone to the dark side - Jeff
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#40
10-07-2016, 03:22 PM
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Curb weight for a W123 300D is 3600LBS.
A two ton jack (4000lbs) should be fine. You're not raising the whole car with it so your jack is not lifting the whole weight anyway
__________________
"The MB W123 is so bulletproof, you can drive them forever. Which is a good thing as it takes that long to get anywhere." Betsie: 1984 W123 300D (hobby, 280k miles) Myrla: 2001 Mazda Protege 2.0 ES 5spd (daily driver, 130k miles) The Turd: 2007 Toyota Camry (wife's car, 118k miles)
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#41
10-07-2016, 03:40 PM
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Right. I recall one poster in the thread saying they liked a jack rated twice the weight of car. For my light use, i think a 2 ton jack should do it.
my HF aluminum jack that is twisting is only 1.5 ton. Should be able to lift the front though without failing. I'm now afraid of aluminum, but i'm also in love with the weight saving. an Arcan 2-ton aluminum one from northern tool seems like a good buy though.
__________________
Andrew Montclair, NJ -------------- 1982 300D Turbo 120k Petrol Blue Green
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#42
10-08-2016, 11:16 AM
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I'm going to build these!!!
__________________
Currently Driving 2006 E320 CDI 1999 E300 Turbo Diesl 2002 ML500 1995 E320 Station Wagon MBs I've owned 1997 E320 Assassinated by Pine Tree 1987 300E Wife Killed Engine 1981 300D Stretch Limo Total Loss 1970 250 Coupe 212,000 mi. 1974 450sel 184,000 mi. 1974 240D 377,000 mi. 1977 300D 204, 000 mi. 1979 280se God Only Knows! 1983 240D 130,000 mi. 1972 220D 280,000 mi. 1983 300SD 244,000 mi.
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#43
10-08-2016, 01:43 PM
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I've seen that pic somewhere before.
The height is probably as high as I would go for the runway width. The higher weight applied to the runway, the more lateral force needed to topple it over. ( when applying lateral force, one must overcome vertical load to roll a cube ) The OSB skin adds strength ( like a unit body car or steel building ) There has to be some internal vertical support for this to work well. ( every 16" would be great ) I'm not liking the support on the wood loading ramps and am hoping they are firmly attached to the runway. Loose ramps will come off and dump the car while loading. And , it's only a Corvette + driver. . . .
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#44
10-09-2016, 06:36 AM
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#45
10-09-2016, 10:07 AM
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__________________
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