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At the last Rennsport Reunion in Monterey, I asked a tech (Gunter) who was showing PAG's reproduction 962 engine cases. I asked his opinion of lifting a vehicle from the crankcase.
He said, No.
Think about it. In a typical 911, there's about 1500 lbs of rear weight concentrated at that suggested engine lift point. I announced a 1500 lb challenge a few years ago:
Place a 911 short block on a hydraulic press, sump side up. Aim the hydraulic ram at the suggested lift location, then apply 1500 lbs of force - with or without dial indicators and/or strain gauges positioned at strategic case locations, and with any number of phone books, hockey pucks, shop rags, wood planks or other intermediary "cushioning" materials between ram and case. No takers yet.
Until then, it's an unproven, perpetuated procedure . I've seen vintage factory photos of 911s lifted at the engine, but I'd rather listen to Gunter. YMMV.
Sherwood
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