This engineer uses a head bolt bracket to lift the engines. As a nuclear engineer my approach is very conservative, so I look for the best way to do something--being safest, lowest risk of failure and often with some redundancy.
My arrangement involves the nuclear principles of defense-in-depth and leverages PRA (probabilistic risk assessment) methodologies. First, I use a chain fall from the overhead beam hooked to one head bolt. Then, a come-along hooked to a pair of rafter trusses is fitted with a pair of lifting straps around the PTO and blower housing. Then, a hydraulic lift is fitted underneath. A series of air mattresses supplemented with crush-able styrofoam peanuts are placed along the movement route to cushion the engine's fall should all three lifting mechanism fail simultaneously.
This will avoid any "engine falldown" accident and the attendant risk of contaminating the work area with engine parts and spilled engine oil.
OK, so there.
I do have to say, there's a difference between today's new engineers (both of my children among them) who have little practical hands on experience and my generation of engineers that went to engineering school to learn why things work. If my parents knew half of what I was doing down in Dad's workroom, they'd have had a heart attack. I was melting copper in a home made arc furnace at age 14. (see the popular mechanics encyclopedia, c. 1954 for details). Sometimes I wonder how I survived my youth.
I spent plenty of time in the the nuclear plant's machine shop working out problems with the craftsmen there. I have plenty of respect for the guys that get the tough jobs done.
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