In reply to a message from Elfinator sent Thu 5 Dec 2013:
My 10 cents worth on this is that you are beyond the
reasonable working limits of your equipment
To pull the motor and the tranny together you will need a
fully extended boom and an engine leveler that can attain an
angle of 45 degrees
When people make reference to engine weight, the number
refer to a stripped down engine, not one that is fully
dressed and full of oil
I have a 2 ton boom, but when fully extended will only lift
1 ton. I would hazard to guess that a fully dressed engine
with the tranny connected and full of fluids will be pushing
the 1500# mark
Generally speaking, you never want to exceed an 80% loading
factor on anything, so a 1 ton lifting capacity should only
really lift 1600#
The lifting is one thing, physically moving it around, ie:
out of the car can put sideways movement on the boom. This
can bend the boom. I know this because I bent mine
The problem with all of this is the engine leveler, which
are not big enough to lift a v12 engine properly, as the
lifting chains will bind against the motor
To pull the whole unit out, the car will be 18’’ in the air
on jack stands, otherwise the tranny will hit the ground as
you angle it out, and this is after the rads have been removed
So, say 1500# of weight, swinging on a under-rated engine
leveler 7’ in the air using an inadequate engine hoist is
actually a pretty scary concept in my books.
And you ASSUME that all of the welds and all of the
components actually meet spec. An interesting concept when
using offshore steel
Once you get it out and over the car, it has to be put
somewhere, not something you just rest on the ground, you
will do damage, so think about what you are going to do with
it after its pulled
IMHO, you are on the edge, but its up to you to determine
the amount of risk you wish to assume. Stand clear and
expect it to break loose. If you are successful, very good,
if not then you had fair warning.
The original message included these comments:
Approx. 350kg for the engine and a good 100kg for the trans.
Having lifted a spare V12. I used a 2 Ton lift. As you need to
lengthen your ‘’ boom’’ because of the length of the engine.
Personally I would split them and do the lift separately or get a
larger capacity lift.
completion of your project.
1987 XJ-S, 1988 XJ-S Tremec TK500. AJ6 Torque kit
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