Other Powder coating engine parts

[davy87nj]

I have been trying to figure out way to clean up and paint my engine parts. Powder coating seems to be pretty easy and doesnt make a huge mess. Videos I have watched show people baking the stuff they powdercoated at 400 degrees. I was wondering if this is safe to do with cases? I would imagine cylinder heads and cylinders should be fine. But should I do both cases bolted together, is it safe to do them? Pretty much worried about warping. Im guessing as long as you let it cool slowly and evenly there shouldnt be issues, but personally I have never done it. What about doing a carb? Anyone use the harbor freight powercoating system? Im not looking for absolute perfection, just want to get my parts cleaned up and looking decent. How does powdercoating hold up to fuel? Lastly, when you powder coat how do you tape off areas you dont want the powder to go especially if you have to bake it? I dont think painters tape would fly.

 

[chadman154]

Find a local guy to do it. Last time i took stuff in it was $125 for 12 parts i think.

 

[hydrostyler]

Do not try to powder coat your reed stops. I learned the hard way that fuel will soften the powder coat and allow the screws to come loose and run through the engine. :skull2: I started with the harbor freight unit which worked "ok" for smaller parts. I now use a Spectra coat ES02 system from www.powderbuythepound.com. If you do attempt to do some powder coating yourself, remember that most ski parts are cast aluminum and will usually need to have a primer coating put on first to prevent outgassing. Good luck.

 

[davy87nj]

Find a local guy to do it. Last time i took stuff in it was $125 for 12 parts i think.

Im cheap, and also have many other uses for powdercoating except on skis, so it would be cool to figure it out.

Thanks, Hydrostyler. I had no idea what outgassing was, after some google now I know!

 

[zimmy]

Powder coating can often flake, maybe give it a good sand/bead blast and then paint it with high temp paint to avoid issues with heating the cases that much. A mild bake to operating temperature will help the paint stay in tact during operation - advice care of egbrig

 

[weston]

I'd stay away from powder coat as stated above it corrosion gets under it and can cause flacking/peeling issues.
Powder coat will have some insulating properties which is not what you want on a motor.
I have a couple seasons of both salt and fresh water on my ski/motor I painted it with a quality automotive paint. If the surface is preped correctly you won't have any issues, sand blasting seems to work well completely dis assemble the motor mask the important parts (sealing surfaces) with duct tape before you blast away.
High temp paint is not needed as a Jetski motor should never get hot enough to bubble or boil paint.