Muriatic acid for white outdrive
 

I have my outdrive off right now and thought Id clean it up since it had some of that white build up on it. The easiest way to clean it turned out to be with a 80 cent brush from walmart and a 6$ jug of Muriatic acid. It only took a small yogurt cup half full to clean the whole upper drive. Pretty amazing! Brush it on and hose it off. Clean as new!
Before
http://i79.photobucket.com/albums/j1...ps8ee1a685.jpg
http://i79.photobucket.com/albums/j1...ps3bd7b643.jpg

After
http://i79.photobucket.com/albums/j1...psacca9694.jpg
http://i79.photobucket.com/albums/j1...ps67ebb362.jpg
http://i79.photobucket.com/albums/j1...psfa585592.jpg

Had I known this stuff worked so well I would have taken much better pictures and been able to show you how white the top cap was. I did not expect it to clean up this easy and fast.

Re: Muriatic acid for white outdrive
 

Nice! I've used CLR in the past but that really cleans well!!
Did it take any paint , and did it do anything to the decals?

Muriatic acid for white outdrive
 

Where did you purchase the acid from?

Re: Muriatic acid for white outdrive
 

Pool & Spa store maybe?

Re: Muriatic acid for white outdrive
 

It did nothing to the paint or metal parts. You can buy it at Walmart or a paint store. I was surprised I did not have any in the garage. We use it to etch concrete before painting or epoxy coating it.
The 6$ jug is a gallon I think. To do what I did took a cup of acid or less. It did not take much at all. Just dont let it drip on your concrete... Not that I did, Im just saying. Gloves are a good idea too. This stuff tingles your skin and shortly after it burns. Just FYI!

Re: Muriatic acid for white outdrive
 

In the first "after" picture you can see the acid I used. It was the best acid I have ever used. It did not burn my nose at all! Usually when one uses it on concrete it tears you up. It is some "green" formula...

Re: Muriatic acid for white outdrive
 

replace those stickers

Mercruiser Mercury Bravo 3 III Three Sticker Decal Set Kit 37 881760A00 | eBay

or better yet, print this guys ad, go to a sticker shop and have some made that match the colors of your boat.

Re: Muriatic acid for white outdrive
 

you also should be looking at a drive shower. that white film is from overheating

Re: Muriatic acid for white outdrive
 

I'm looking at both! The drive shower is next then the decals. Maybe next paycheck. What shower do you use?

I think mine is the hardin marine With dual pickups