painting head & jug
- Thread starter hotrodaj_2
- Start date
I'm not a paint or engine expert. All I know is I've been told by many, many people that the only thing you do to a air cooled engine is to leave it bare or paint flat black only. Many paints will "seal" the alum. and cause heat retention. I've always heard that a gloss paints in general are a bad thing, also any color other than flat black will retaine heat. That's why most air cooled bike engines are flat black from the factory. I will leave mine bare alum. and the steel wool to clean is a good idea, I'll use that. From what i've heard, you can have a engine jetted right and blow it up because of the wrong paint, I've heard that more than once. Maybe that's why some Blaster engines blow up over and over for no reason. The paint.
OK let me say gloss paints are actually thinner then satin. Jes sayin.
Low gloss paints have a satin additive to make it well not glossy there for being thicker and more heat retaining.
Flat paint has neither and looks like crap. The factory does not use flat black.
70's-80's air cooled motors before water cooling was around had pretty much all the colors of the rainbow factory painted.
Check out a Mugen Honda.
Obviously bare is best from a cooling stand point but for real any coat of paint isn't going to overheat a properly tuned motor.
In other words if your running hot don't blame the paint.
I think I agree with Paulie. If you are so close to overheating and a simple coat of paint pushes you over the edge there are other things you should take care of. That being said, I would still only use one or two coats of paint and not make it too thick.
The old elsinore honda motocross bikes had red painted engines and I have never heard that they overheated because of the paint.
The old elsinore honda motocross bikes had red painted engines and I have never heard that they overheated because of the paint.
I don't think it will be a big problem after I painted it... What do you think they use at yamaha.. Look how long their paint stays on the engine.. It can't be a light coat. I'll let everyone know how hot my engine gets when I put on a temp gauge....
The factory uses a high heat satin black. It's a real thin paint and shouldn't take more then 3 coats.
The best I've found that duplicates it is PJ1 engine and case paint thats good to 500 degrees. It holds up very well.
Just for reference here is 2 motors I did. 1 in flat black and one in satin.
It's easy to tell which looks more factory and better in my eyes.
Flat
Satin
The best I've found that duplicates it is PJ1 engine and case paint thats good to 500 degrees. It holds up very well.
Just for reference here is 2 motors I did. 1 in flat black and one in satin.
It's easy to tell which looks more factory and better in my eyes.
Flat
Satin
Anyone painted the outside of their cases, I've seen alot polished but never painted, I'd like to do it to blaster motor to black out the whole thing with exhaust any advice would be appreciated.
Similar threads
