What's the best way.....

Home Model Engine Machinist Forum

Help Support Home Model Engine Machinist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Captain Jerry

Project of the Month Winner!!!
Project of the Month Winner
Joined
Dec 2, 2008
Messages
971
Reaction score
8
to remove a little rust. I'm not sure where to start.

SteamDonkey001.jpg


SteamDonkey002.jpg


SteamDonkey003.jpg


SteamDonkey004.jpg


SteamDonkey005.jpg


Any suggestions?

Jerry

 
That's a good idea. It's gonna take a pretty big navel full though.

Jerry
 
Captain Jerry said:
(What's the best way) to remove a little rust. I'm not sure where to start.
Any suggestions?

Ya can't. Sent it to me. ;D
 
Excavator winches?
Edit:
Oh, it does say "American Hoist & Derrick Co.", doesn't it. Nevermind :D
 
Actually, American Hoist & Derrick did make cable operated excavators but this is a steam donkey, twin drum with rope capstans on both.

I moved my boat to a new marina in south Georgia (USA) and this is what greated me at the head of the dock when I arrived. No one here really knows the history of this piece except that it was found when the marina channel was being dredged. There are lots of guesses though. These things were commonly used in the timber industry and is full of pulpwood industry from trees to paper and explosives(TNT). Coastal Georgia is also full of shrimp boats so maybe it was used to handle the trawl gear and nets. May have been used in the shipbuilding industry. Almost every coastal town around here has some kind of ship building history.

From my time in the Pennsylvania Coal fields, I remember something like this used in slope mines called a slusher hoist. No coal mines around here.

Just a piece of disconnected history that seems slightly out of place in a marina but I was tickled to see it and thought you might be too.

Jerry
 
If you really want to de-rust it, look into the electrolytic rust removal process.

The process scales up and while you wouldn't dunk the whole thing, you could setup in a large trash can and do some pretty large assemblies.

Sand / soda blasting maybe as well, especially if it doesn't have to do work again.



 
Captain Jerry said:
That's a good idea. It's gonna take a pretty big navel full though.

Jerry

If you knew some of the guys I know... :big:
 
After untold ages immersed in saltwater,(the donkey, not me), there is not much chance of anything being disassembled. At least in the years that I have left in me. I think it best left alone. I dont think it will get much rustier.

Jerry
 
What a treasure Jerry! Thm:

I have restored many rusted tight, seized up engines.
The main ingredient is patience.

Rick
 
Now theres a project!
Hope you got plenty of WD40. :big:
 
That tain't rust. Its called PATINA. Folks pay big for that...
 
"...to remove a little rust."

A little steel wool.

You're going to need a whole steel sheep, though.
 
I my younger days I worked on restoring cars for a private collector. I did a lot of sand/bead blasting and it is hard work. You need a very expensive large compressor, and a top quality pressurized blasting unit or it may become a long and miserable job. It also poses a very serious health hazard known as Silicosis. I would recommend that you stay away from it without the use of an expensive remote air supply for safety.

The best way I can recommend dealing with a large rust removal project, is to send out the pieces to be hot bath stripped of all their rust. There are specialists that will do a professional job at a reasonable cost in most major cities. This is a very safe and cost effective choice.

-MB
 
A common method of dealing with large areas of rust on ships is to use a needle scaler. Whils't not extremely fast, It is a little more healthy than Sand/bead blassting and uses far less air. As there is no residue, the process is fdairly clean and small areas can be primed and you can begin to see immediate progress. Obviously difficult to get at areas may need to be stripped if possible.

Another recent innovation I have seen being used on yachts is the use of Co2 on the form of dry ice. This process is again very environment friendly.

The process can be carried out in Situ and will also get to those hard to get at areas.

The downside to this process is that you need to have the work done by a professional and should be able to be completed in one day.

Hope this helps

Phil
 
Weren't there some health issues come up with the needle scalers a few years back? The needles being made of beryllium copper or something equally nasty?
 
Instead of traditional air/sand blasting, you could use water/sand blast. A traditional high pressure water washer (100 Bar) with the sand blast nozzle you get nice finish without dust. You just have to dry the piece afterwards to protect it from oxidizing again.
 
Jerry---I have been involved with antique car and hotrods all my life. One of the popular ways to derust old car parts are to soak them in a childs blow up swimming pool in a bath of water and a heavy concentration of molasses. This works very well and will not do the damage to old sheet metal that sand or bead blasting will do. It is reasonably environmentaly friendly, easy to clean up "water and hose" and is quite effective.---Brian
 
Back
Top