Boom extension for lifting.......

Tedd · Mar 1, 2022

This might be a case of "If you have to ask..." I (mech. eng.) can envision doing something like that myself, and I don't see any reason it couldn't work, in principle. But there are a lot of considerations and if you miss any one of them it could go south on you in a nasty way. So, my opinion is: Cool idea that would work in theory, but I agree with others who've said hire a pro or rent suitable equipment.

Crusty Ol Salt · Mar 1, 2022

Not to be another downer, but every bone in my body screams..... If you are on the hard and have access to a crane why are you even having this conversation?

Shoot, I just read another thread on here that suggest not removing your sails while on the hard because the sway of the mast might topple the boat off her stands. I can only imagine what booming over the side and dead lifting a couple hundred pounds genset would do to the stability of the boat on stands.

Heck start a go fund me and I will donate to help you rent the crane. Please.

smokey73 · Mar 1, 2022

Crusty Ol Salt said:
Not to be another downer, but every bone in my body screams..... If you are on the hard and have access to a crane why are you even having this conversation?

Look at post #4. The OP intends to do this in the water, not on the hard.

Crusty Ol Salt · Mar 1, 2022

smokey73 said:
Look at post #4. The OP intends to do this in the water, not on the hard.

Okay that eliminates 1 of the safety concerns.

jon hansen · Mar 1, 2022

greg, it's fun thinking about your project. could i do such safely on my boat, yep, easy peezey. could i safely do such on your boat, i'm sure i can. rigging the gear to handle the job is doable. all the fittings should certainly handle the load.

BUT, i would never do this project as you have asked. i would drive aeolus under the crane at my yard and oversee the yard crew to drop her in. and here is why. all your equipment is yachting gear. scratches are a bummer. abrasions suck. wear and tear is expensive. the yard crane has a different look and design for a reason. aeolus has a hand made, hollow, varnished, sitka spruce boom. no scratches wanted.

it's not the safety, that's doable, it's the possibility for chafing that would be hard to deal with.

my $0.02

jon

markwbird · Mar 1, 2022

Tally Ho said:
Yes.agreed. Have to be creative to find a way to keep the extension from moving into the mast.

Greg

I don’t think that will be a big problem. Lashing the extension to the boom with sufficient number Of tight wraps should take care of that

jssailem · Mar 3, 2022

NYSail said:
they are going to drop it in for me with the crane for free.

I am confident that this statement is not a literal description of what they plan to do..

Thanks Greg for following up with the resolution. Sounds like you are liked by the Marina guys. That is always good to learn.

dLj · Mar 3, 2022

NYSail said:
Just as an update, spoke with the yard today and they are going to drop it in for me with the crane for free. Guess the yearly tips and fact I've been there for over 20 years means something! btw they pulled the old one out for free as well.

The question regarding the boom lifting really revolves around the fact that I LOVE to work on my boat and enjoying biting off projects regardless what they are as long as they are within my ability. If the overwhelming response was no problem, I would have done it just because I'd rather do things myself on my own time......

So now next time I hear someone removed their engine with the boom or watching someone dangling off the end on a chair or hammock I'll have a good laugh and get the camera ready.

Again thanks for all the input
Greg

@NYSail - oh man! I'm disappointed! I was hoping you were going to suggest an extra set of hands were just what you were looking for and I'd get the chance to come help you do this...

BUT - this is great news!

dj

Crusty Ol Salt · Mar 3, 2022

NYSail said:
Just as an update, spoke with the yard today and they are going to drop it in for me with the crane for free. Guess the yearly tips and fact I've been there for over 20 years means something! btw they pulled the old one out for free as well.

Great news.

DArcy · Mar 3, 2022

I think you made the right call using the crane.
I can tell you a 2x6 supported on each end by two 2x4s can support a 500lb small block in the middle of about an 8' span. When I was young I did everything with whatever I had on hand and mostly got away with it. I'm not sure I'd lift a 200lb generator over my boat with an extension off my boom if I didn't have to. If I was somewhere remote without a crane I would certainly find a way but with a crane available I'd go with the crane. Lifting an engine with a boom is just a matter of proper engineering, not everyone gets it right.
This is the Chevy small block from my '77 Toyota Land Cruiser getting a clutch replacement.

dLj · Mar 4, 2022

DArcy said:
I think you made the right call using the crane.
I can tell you a 2x6 supported on each end by two 2x4s can support a 500lb small block in the middle of about an 8' span. When I was young I did everything with whatever I had on hand and mostly got away with it. I'm not sure I'd lift a 200lb generator over my boat with an extension off my boom if I didn't have to. If I was somewhere remote without a crane I would certainly find a way but with a crane available I'd go with the crane. Lifting an engine with a boom is just a matter of proper engineering, not everyone gets it right.
This is the Chevy small block from my '77 Toyota Land Cruiser getting a clutch replacement.
View attachment 203120

@DArcy So you pulled the orginal stright 6 out and put in a chevy small block V8 - what did you put in, a 283? 350? Sure changed how that vehicle moved... I used to do a lot of off road with those FJ40's. Wish I still had them!

dj

p.s. I''m surprised you didn't drop that whole front grill - gave great access to the engine!

DArcy · Mar 4, 2022

dLj said:
@DArcy So you pulled the orginal stright 6 out and put in a chevy small block V8 - what did you put in, a 283? 350? Sure changed how that vehicle moved... I used to do a lot of off road with those FJ40's. Wish I still had them!

dj

p.s. I''m surprised you didn't drop that whole front grill - gave great access to the engine!

I bought it with the 327 small block in it already. It was an interesting drive, not lack of power, maybe a bit too much at times

. I did get into a few interesting situations like running over a beaver damn in the middle of the night. Trying to jump a stream one time I got stuck up to the floor boards in mud. I was spinning the wheels trying to get out when I heard this squeak behind me. John's (the guy on the left in the picture) girlfriend was in the back seat and she was covered in mud that came through the open window. The winch came in handy that day.

I had to lift the engine over the bush bar any way and there was enough room to work on it without taking out the grill. I had a BJ60 long wheel base after the FJ40 and now I have an FJ Cruiser.

All U Get · Mar 4, 2022

I had two 8D gel batteries installed recently at 150 lbs each. Two young lads just picked them up and dropped them in. A simple A frame with a chain fall or 4:1 would lift it if you’re clever like Tom Y. I’d keep the unannointed out of the way.

Boom extension for lifting.......

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SBO Weather and Forecasting Forum Jim & John

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