I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

On Mar 14, 2:10 pm, (big e lewis) wrote:
I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

Big E-

I would suggest that you look for a small A-frame style gantry on
Craigslist

Take a look at mcmaster.com under floor crane to get an idea of what
the design looks like in steel.

Timber is pretty variable material & the strength from piece to piece
can vary a lot.

A 4x4 is way undersized ... a 4x6 is getting closer.

The connection details are very important to performance of the
system.

Wood though easy to work with isn't ideal material for this
application.

Several 100's of pounds of auto components suspended chest high off
the ground is a non-trivial activity that could seriously hurt or kill
someone if it falls.

Lifting systems are required to have substantial safety margin....your
home brew solution, while doable (if you know what you're doing),
could be a disaster waiting to happen.

cheers
Bob

BobK207 wrote:
On Mar 14, 2:10 pm, (big e lewis) wrote:

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E


Big E-

I would suggest that you look for a small A-frame style gantry on
Craigslist

Take a look at mcmaster.com under floor crane to get an idea of what
the design looks like in steel.

Timber is pretty variable material & the strength from piece to piece
can vary a lot.

A 4x4 is way undersized ... a 4x6 is getting closer.

The connection details are very important to performance of the
system.

Wood though easy to work with isn't ideal material for this
application.

Several 100's of pounds of auto components suspended chest high off
the ground is a non-trivial activity that could seriously hurt or kill
someone if it falls.

Lifting systems are required to have substantial safety margin....your
home brew solution, while doable (if you know what you're doing),
could be a disaster waiting to happen.

cheers
Bob

I'd design for at least 1500#, for example, a Studebaker V-8 weighs over
600 lbs. fully dressed with clutch and bellhousing but without
transmission. I'd imagine if you work on 4x4s you could conceivably
pull an engine, automatic transmission, and transfer case as a unit,
which even with a modern, lightweight engine and trans case could weigh
over 1000# all up. like Bob says, you don't want to find out that you
underbuilt the hard way.

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

BobK207 wrote:
On Mar 14, 2:10 pm, (big e lewis) wrote:
I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

Big E-

I would suggest that you look for a small A-frame style gantry on
Craigslist

Take a look at mcmaster.com under floor crane to get an idea of what
the design looks like in steel.

Timber is pretty variable material & the strength from piece to piece
can vary a lot.

A 4x4 is way undersized ... a 4x6 is getting closer.

The connection details are very important to performance of the
system.

Wood though easy to work with isn't ideal material for this
application.

Several 100's of pounds of auto components suspended chest high off
the ground is a non-trivial activity that could seriously hurt or kill
someone if it falls.

Lifting systems are required to have substantial safety margin....your
home brew solution, while doable (if you know what you're doing),
could be a disaster waiting to happen.

Agreed. Stuff That Can Kill You is not the place to cut corners. Used
engine lifts are not that hard to find or expensive, compared to the
doctor bills if you drop it on your foot, or the funeral bills if you
drop it on your head or chest.

aem sends...

In article ,
says...

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E


A 4x4 will definitely not be strong enough. I have one made up with double
2x8's with a 7 foot width that I have pulled an engine with. I would keep the
width as short as practical. Do not drill the beam to attach the hoist, make a
metal strap to go around, or use a nylon sling wrapped around the beam.

Here is a program that will calculate the bend in a wooden shelf or beam, just
put in various measurements and wood type. Best to size it for ordinary wood:
spruce, pine, etc. unless you can get Douglas fir.

http://www.woodbin.com/calcs/sagulator.htm

--
Dennis

DT wrote:

says...

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#...

A 4x4 will definitely not be strong enough.

Depends on the span, no? If M = WL/8 = 100L and S = M/1000
and 3.5 = sqart(6S/3.5), L = 71" max, approximately.

Nick

wrote:
DT wrote:

says...

I am building an engine hoist framework, to hang a chainfall. ...
... The crossboard, ... will be 10' long. ...

A 4x4 will definitely not be strong enough.

Depends on the span, no? If M = WL/8 = 100L and S = M/1000
and 3.5 = sqart(6S/3.5), L = 71" max, approximately.

Yes.

But OP said 10-ft span which would be stretching it by quite a bunch...

I'm w/ the suggestion on looking at alternatives including biting the
bullet and buying a decent-sized beam--amongst other things, would allow
the hoist to be tracked, always a useful enhancement.

If use lumber, would suggest 2-3 2x8 or -10s minimum, but that's simply
a "feels about right" sizing, I didn't even estimate a stress number...

--

wrote in message
...
DT wrote:

says...

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#...

A 4x4 will definitely not be strong enough.

Depends on the span, no? If M = WL/8 = 100L and S = M/1000
and 3.5 = sqart(6S/3.5), L = 71" max, approximately.

Nick


I don't see where you applied Murphy's Law in your equation.

Steve

On Fri, 14 Mar 2008 18:10:33 -0400, (big e lewis)
wrote:

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles.

1) If you have a large Oak tree - hoist the engine from the largest
branch.

2) Drop the engine on the ground, then roll the car back down the
ramp.

3) Build a T-Pee with three 3" galvanized pipes, assemble the
hoist/with pipe and hoist the engine.

1) If you have a large Oak tree - hoist the engine from the largest branch.


Even then you can never tell. I have several 70' oak trees and one had a nearly
horizontal branch up about 20 feet. The branch was a good 10" thick. Many times
I pondered how I could get some ropes up there for a swing for the grandkids.
One hot summer about 3 years ago, I was walking in the back yard and heard a
tremendous splitting noise, and the entire branch hit the ground with a crash.

--
Dennis

On Fri, 14 Mar 2008 21:33:58 -0500, (DT)
wrote:


1) If you have a large Oak tree - hoist the engine from the largest branch.


Even then you can never tell. I have several 70' oak trees and one had a nearly
horizontal branch up about 20 feet. The branch was a good 10" thick. Many times
I pondered how I could get some ropes up there for a swing for the grandkids.
One hot summer about 3 years ago, I was walking in the back yard and heard a
tremendous splitting noise, and the entire branch hit the ground with a crash.

Okay. Never hang your engines from an ole oak tree. Pick young ones..

You might need a 14 -16 " branch.

"big e lewis" wrote in message
...
I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

I would not lift anything that heavy with wood. I know it has been done,
and is currently done. However, there is a safety factor here, and the
failures are catastrophic.

OSHA rules forbid lifting ANYTHING with rope in their rigging regulations.
In the field, it is done ALL THE TIME, and done safely by people who know
rope, knots, practices. Timber hitch is a common example. Works better and
safer than a chain or sling, but they don't want you to use it.

If the wooden beam is all you have to work with, put two vertical support
members to help distribute the load and make it a little safer.

Steve

better get some updated info on those weights. Unless you're running an
aluminum 4 cyl.

s


"big e lewis" wrote in message
...
I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

On Fri, 14 Mar 2008 19:28:52 -0500, "S. Barker"
wrote:

better get some updated info on those weights. Unless you're running an
aluminum 4 cyl.

s

How much does a Chevy 327 weight with a bell housing and clutch - no
tranny.. 800#?


"big e lewis" wrote in message
...
I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E

Oren wrote:
On Fri, 14 Mar 2008 19:28:52 -0500, "S. Barker"
wrote:


better get some updated info on those weights. Unless you're running an
aluminum 4 cyl.

s


How much does a Chevy 327 weight with a bell housing and clutch - no
tranny.. 800#?

not that much... probably between 500 and 600#... still, safety factors
are your friend

nate





"big e lewis" wrote in message
...

I am building an engine hoist framework, to hang a chainfall. I will be
using it to pull and install engines and trans in my racecar and other
various vehicles. I planned on using 4x4's for the uprights and the top
crossboard. The crossboard, that the chainfall will hang from, will be
10' long. Is a 4x4 strong enough, or should I use a 4x6, or something
else entirely? I figure the engine/trans combos shouldn't be more than
700 or 800#. Plus maybe a momentary higher weight when a mount hangs up,
and the front of the car lifts up a little with the engine. Any
comments/thoughts are appreciated! Thanks, Big E




--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

not that much... probably between 500 and 600#... still, safety factors
are your friend

nate

Should and probably. Two words I hate.

Steve

To elaborate a little on my original idea... I was thinking 4x4
uprights, with a 4x4 or 4x6 top crossbar. I was going to run 2x4's
diagonally from almost the middle of the crossbar, to the uprights, 2
per side. I figured this would beef up the middle of the crossbar, where
the chainfall would go. By the way, I'm going to use a chain chainfall,
where you pull the chain one way for up and the other for down, not
ropes or pulleys. I was going to use 4x4's on the bottom, under the
uprights, with 3 swivel casters per side, for mobility. I wanted to be
able to disasemble it for storage, as it is not something to use
everyday. I know a small block chevy is a little under 500#, and
probably another 200# for a tranny. I wanted a 10' span on top, to give
plenty of room to work on the sides of the car, but as our latemodel
racecar is about 6 1/2' wide, I could go less if I had to. I have a
cheap, foldup Harbor Freight cherrypicker now, but it is marginal in
reach and height to pull many motors. I just want something I can use
safely, inside my garage because it gets cold here in Michigan in the
winter. So what if I go 8' span, with my diagonals, possibly either
stack 2 4x4's, or use a bundle of 2 or 3 2x8's or 2x10's? Or is wood
just going to be too weak no matter how I do it? I really appreciate the
input! Big E

there abouts.

s

"Oren" wrote in message
...

How much does a Chevy 327 weight with a bell housing and clutch - no
tranny.. 800#?

"S. Barker" wrote in message
...
there abouts.

s

"Oren" wrote in message
...

How much does a Chevy 327 weight with a bell housing and clutch - no
tranny.. 800#?

Well............. hmmmmmmmmmm ................... I don't know. Let's just
hook it up and see what happens ....................

Steve

"S. Barker" wrote in message
...
there abouts.

s

"Oren" wrote in message
...

How much does a Chevy 327 weight with a bell housing and clutch - no
tranny.. 800#?


Here is a list of some weights.

http://www.gomog.com/allmorgan/engineweights.html

On Sat, 15 Mar 2008 12:13:50 -0500, "Ralph Mowery"
wrote:

Here is a list of some weights.

http://www.gomog.com/allmorgan/engineweights.html


Thanks!

I never knew a Chrysler M4 tank engine came in at 5,244#s

i dont know about wood, but i was allways told to have double the
lifting capacity for safteys sake.lucas

http://www.minibite.com/america/malone.htm