Getting years of crust off

[David Jenkins]

What do you guys us to get the years of marine crust off of 1920’s outboards lower units?  It’s like green concrete?

Thanks!

[Mumbles]

Is it salt water marine growth?  Photo?

[frankr]

Patina???

[David Jenkins]

Here is a photo of what I’m dealing with.

[David Jenkins]

Here is a photo of what I’m dealing with.

[dave-bernard]

try a soak in ethanol gas.

[David Jenkins]

Dave, would denatured alcohol work?  I’ve got a lot of that from a prior project.  And, what is this stuff?  The entire engine looks like it was in a tar pit!

 

[Bob Wight]

I have used denatured alcohol to clean up some grimy motors.   If you have some, might as well try it.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."

[lloyd]

Start with boiling hot water and wire brush. Heat always helps and it’s much cheaper than ethanol or other cleaning agents.

[David Jenkins]

Great idea! Thanks. I will try that first.  What is that stuff?

 

[Author]

Posts