Posts Tagged ‘rust’

Marine Engine Paint Tips – Best Ways to Paint Boat Engines

Friday, December 4th, 2009

Is your marine engine in need of paint job?  If you’re thinking of selling your boat or even if you’re not, no one wants an engine to look unsightly because of past fluid leaks.  If a potential buyer can spot signs of rust or possible corrosion, it may be time to makeover your marine engine with a paint job.

Makeover your Marine Engine with a Paint Job

Makeover your Marine Engine with a Paint Job

Boat Engine Preparations – Fix it & Clean it bbefore you Paint It

The first step before painting is to determine the cause of the corrosion or rust which is almost always a leak; this could come from the engine itself, a loose hose, the engine pump, or maybe even from water spraying onto the engine.  This may take a little detective work but if the problem isn’t fixed before painting the engine, the problem will continue to occur no matter how good the engine looks after painting.

The next step is to inspect all of the clamps and hoses, replacing those that may be rotted or cracked.  Follow this by removing all parts from the engine that can be taken off easily.   The next step is to clean the boat engine with a quality degreaser; Formula 21 Cleaner & Degreaser (formerly known as ‘Black Jack’) is available from many marine retailers as well as online retailers including Jamestown Distributors (USD $7.41/quart).  You can also try the bio-products offered by our partner, Wise Solutions.

Marine Engine Painting Prep – Taping & Paint Choices

After a thorough cleaning, use painter’s tape to mask off any openings, hoses, and wires, to create a professional looking result.  For your choice of paint, the original equipment manufacturer (OEM) paint or equivalent is your best bet to maintain the overall value of your marine engine; if you choose to use a non-OEM paint, ensure that the engine paint will be able to withstand the high temperatures that an engine produces.

There are several paint products available on today’s market specifically for marine engine use including:

  • Moller Marine – this acrylic lacquer paint is both solvent and heat resistant and can easily be matched your to original engine color; for use on outboard/inboard engines; ($7.50 for a 12 ounce spray can)
  • Tempo Marine Ultra Marine Enamel – quick drying, heat resistant; no primer required; ($13/12 ounce can)
  • Moller Marine Clear Coat Marine Lacquer – increases luster; helps to protect your new paint job from the environment; ($8/12 ounce can)

Marine Engine Paint Techniques

Apply the paint to your clean engine following the instructions provided on the spray can.  Allow a few days for this portion of your engine makeover project as it may take more than one coat of paint plus drying time in between.

Once your engine has been painted and is dry, it’s time to reattach any hoses or parts removed.  But before doing so, this is the time to take advantage of the removed parts and reassemble the engine using new gaskets.  Reasonably inexpensive, there’s truly no reason to try and reuse a gasket which will more than likely cause a leak in the end.

By doing your homework, gathering the necessary materials in advance, and using some elbow grease – making over your marine engine with a paint job could be a satisfying project that will benefit both yourself and your engine.

Sources:
Moller Marine
Tempo Marine
Dickerson Boat Service Log
Jamestown Distributors

Rust Inhibitor Lubricants for Marine Use

Thursday, September 10th, 2009

The marine and boating environment is highly conducive to the corrosion of metal parts and surfaces. Besides the corrosion resulting from direct contact with sea or fresh water. The atmospheric moisture content in coastal areas and the effects of sea water splash multiply the opportunities for corrosion of metallic surfaces on boats. Marine lubricants help prevent rust and corrosion with additional additives that enhance their corrosion fighting properties.

Corrosion is a chemical or electrochemical process between a metal and its environment resulting in the breakdown of the metal. The amount and rate of corrosion is dependent on the environment the metal is exposed to. Metal parts and surfaces on boats are exposed to a rather corrossive environment! Corrosion is most visible as rust.

rust inhibitor lubricants for marine useLubricants developed for marine use will include inhibitors that block moisture or prevent rust from forming. There are different lubricants formulated for different purposes. Lubricating fluids for internally lubricated, moving parts like engine motor oils, gear lube for outboard and stern drive applications, hydraulic oil for pressure applications like power tilt and trim fluid. External surfaces also need marine lubricants to prevent rust. Different types are used for different purposes. Penetrating rust inhibitors will get under existing corrosion and stop the decay, protect and lubricate the metal surfaces. Grease lubricants seal and protect lubricated parts. Grease does not require frequent reapplication and can be used on open surfaces where it is impractical to continuously reapply liquid lubricants.

Eureka Chemical Company has a line of products called Fluid Film for heavy commercial marine application. The flyer states it is “The only product line used from nuclear submarines to the Space Shuttle.”  It is available in containers as small as 12 ounces, so the recreational boater may find use for some of their products.

Besides Fluid Film for your nuke sub, here are some additional marine lubricants that fight rust and appear to have widespread availability:

  • CorrosionX, corrosion fighter, lubricant and penetrating protector.
  • Taskmaster A-120 Anti-corrosion spray.
  • Rustblock Marine penetrating corrosion inhibitor and lubricant.
  • Corrosion Block rust inhibitor. The website claims this stuff was used in the filming of “Titanic” and “WaterWorld”. I am not sure “WaterWorld” is a good source for an anti-rust claim!
  • Never Seez has products formulated for pressure applications.

Protecting metal surface onboard boats and yachts is an important and constant process. Using marine lubricants that are formulated to fight rust and corrosion is a big step in this process. Lubricant manufacturers have developed a wide range of products to meet the different lubricating needs of boating and marine use.

One last area of rust inhibiting lubricants needs to be discussed. If your boat is stored for the off-season make sure all of the surfaces are protected by corrosion inhibitors designed for long term storage. Nothing worse than checking out the boat in the spring and find a rust infestation!

Sources: Pennzoil, Chevron, Seattle Marine