Getting years of crust off

[Buccaneer]

You sure you’re not working on a cement mixer!
That’s some nasty looking stuff.

Prepare to be boarded!

[George Emmanuel]

That looks like a combination of oozed gear oil with dirt stuck to it. I’d scrape the heavy stuff off first using a hard, plastic scraper to avoid gouging the aluminum and clean with gasoline in a remote area away from anything that potentially could ignite.

That old oil attracted heavy dirt.

George

[David Jenkins]

Buccaneer!  Thanks for the laugh!  You made my afternoon!

[David Jenkins]

George-Emanuel, so, you think the seals are toast?  I’m thinking I’ll clean this one up and hang it on the wall in the garage.

 

[David Jenkins]

Also, thanks for the tip on a soft scraper.  I would have figured that out about five minutes into damaging the engine!

 

[George Emmanuel]

There are no seals. Early year motors, even after the war, were bushings on the prop shaft. That old, black, (great stuff BTW) grease/oil oozed out of every joint. The good part was, because it did ooze, people checked it frequently. Now that we have seal on everything, people don’t even check their car’s engine oil.

 

[joecb]

There is basically two kinds of “crud” , The more common stuff is oil/ grease based, this responds to alkaline cleaning agents. The other is mineral based, like lime / hard water stain, this responds to acidic cleaners. A little heat will help both.

Most if what we encounter is oil based… my go procedure for heavy baked on crud is… spray it down with oven cleaner then pressure wash at the car wash.  Don’t let the strong alkaline cleaners linger too long on aluminum and say goodby to paint and decals. Use caution and appropriate PPE.

Joe B

[green-thumbs]

I take the Beyond Hope jobs to local sand blast shop. Pan off Model A Ford went from cement like covering to bright steel ready to prime & paint…picked up next day and. Price was reasonable for a job well done. I asked the owner how he got started. He said his locksmith business left him with too much time on his hands so he looked into blasting as a fill in. Found too much business to stay in locksmith work. He has since gotten into electrostatic coating work. There are several shops doing sand/media blasting in this area some will do one off work for walk in customers. Probably same in your  area. If the material is other than cast iron or steel. softer media such as nut shells, glass beads or soda might be in order. Some shops are set up to do it all and some are not.

Louis

 

 

[Mumbles]

And you think you have buildup on your motor, what about this one?

[joecb]

For sale …. It ran the last time we used it !

Joe B

[Author]

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