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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel > Removing rust on motor
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Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Thread: Removing rust on motor Reply to Thread
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Topic Review (Newest First)
08-31-2009 12:20 AM
Cobalt187
Quote:
Originally Posted by Wiley1 View Post
Here's a product that gets rave reviews from members on another forum that I subscribe to:
Evapo-Rust Rust Remover Home

For large areas and items that cannot be immersed they have had good luck saturating paper towels and applying to the rusty surface. Unfortunately I cannot get it where I live but pass this on as they think it's the best thing since sliced bread. Try your local auto parts store.

Otherwise you can use the old vinegar and lemon juice treatment, same deal, paper towels soaked in the stuff. But wear plastic gloves as it makes your hands stink. And takes a while. And for large items that can be submerged I have had great luck with washing soda/water solution and a battery charger. Just derusted a five foot add on to my mooring chain (1 1/4 inch stud link) using that method.

Bests,
Wiley
Thanks for the tip Wiley, I've went ahead and ordered some but it isn't cheap. I've got an old Yanmar that hopefully will get some benefit from the product. The previous owner let the zincs go on the engine block and hopefully this does what it says. I'll let you know if it's all that and then some here in a week or so.
08-30-2009 03:05 PM
Wiley1 Here's a product that gets rave reviews from members on another forum that I subscribe to:
Evapo-Rust Rust Remover Home

For large areas and items that cannot be immersed they have had good luck saturating paper towels and applying to the rusty surface. Unfortunately I cannot get it where I live but pass this on as they think it's the best thing since sliced bread. Try your local auto parts store.

Otherwise you can use the old vinegar and lemon juice treatment, same deal, paper towels soaked in the stuff. But wear plastic gloves as it makes your hands stink. And takes a while. And for large items that can be submerged I have had great luck with washing soda/water solution and a battery charger. Just derusted a five foot add on to my mooring chain (1 1/4 inch stud link) using that method.

Bests,
Wiley
08-30-2009 02:36 PM
Bellamar Ospho is pretty strong, try FSR first.
07-11-2009 11:32 PM
r.furborough Try using Ospho, it will make the rust inert and ready for paint.

Ospho Rust Treatment - Since 1947
07-11-2009 02:19 PM
sww914 I've had some luck with CLR, if it's not too bad. If that doesn't work try Shower Power or any of the acid based bathroom cleaners like Edfred.
07-11-2009 01:13 PM
L124C
Removing rust on motor

My raw water cooled Yanmar developed a gasket leak a while back. I fixed the leak, but the salt water that was running over the top of the motor created surface rust (of course). What the best way to remove the rust so I can repaint the motor?

 
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