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

Re: Muriatic acid for white outdrive
 

http://item.mobileweb.ebay.com/viewi...id=70262762673

Ordered the decals. 25$ shipped! I'll post on the outdrive in the next week or so. Lots of goodies....

Re: Muriatic acid for white outdrive
 

I think Im gonna sand blast the lower unit and ceramic coat it clear. Repaint the upper and install new stickers. I like the "offshore" look

Re: Muriatic acid for white outdrive
 

Opps !! Meant Rex Marine with the dual pickups

Rex Marine It's Cool Drive Shower for Bravo Drives: Automotive Performance Products, Boat & Marine Parts & Hardware

Re: Muriatic acid for white outdrive
 

I also used the acid on the exhaust tips. Cleaned them up like new. Just polish the fine stuff out.


I like the Rex. I think it will be money well spent.

Re: Muriatic acid for white outdrive
 

When you say "green" formula do you mean color or a special blend? I bought some from Ace hardware the other day to clean the white stuff off my stainless steel propeller and thought if it isn't much different than what you used I might do a little cleaning on my outdrive too although it isn't as bad as yours.

I might have missed it but did it do any damage to the stickers?

Re: Muriatic acid for white outdrive
 

It has not damaged anything I have noticed, aside from concrete. And the green acid does not smell as strong as the regular stuff I used for etching concrete. I guess it is just a safer blend, vapor wise.

Sent from my DROID RAZR HD using Tapatalk 2

Re: Muriatic acid for white outdrive
 

I have used Zing in the past... Never thought about muriatic acid...

Re: Muriatic acid for white outdrive
 

Zing is muriatic acid... It just costs 20$ more.

Sent from my DROID RAZR HD using Tapatalk 2

Re: Muriatic acid for white outdrive
 

:eek_animated: LOL I never really paid attention... We used it at the marina I worked at back in the day and I just kept using when I needed to...

Re: Muriatic acid for white outdrive
 

What about white vinegar, works great around kitsch faucet and minerals?