Coated two stroke pistons

moonerdizzle

moonerdizzle

New Member
Ive been thinking about doing a run of two stroke pistons with hard coated crowns and hardcoated and ptfe treated skirts, reduced noise friction and heat. If I can get at least 10 people interested I'll give it a go, looking at $30 plus shipping, I'll knock it down to $22 if you do a core return of a piston in decent shape. This is the same treatment we do to the Mahle pistons and performance diesel pistons we coat at work.
 
Yah, MD... I'm interested . That would be a real bargain price for that kind of service!

$22 is great! ... well, plus 5 0r 6 each way for the post office...

What piston clearance is advised in a cylinder with the piston treated in that fashion?
Could it be accomplished only by honing out the cylinder with a stone on a drill?

rc
 
no honing is needed, im running one in my smoker and i gave one to a local guy to try out. they been working great. the hard coat anodized process only builds up a layer of material from .0015-.002 inches.
 
This does sound interesting. My take ?? Is it will reduce blow by gasses on sloppier tolerance designed engines and make them run more efficiently.
 
rustycase said:
Yah, MD... I'm interested . That would be a real bargain price for that kind of service!

$22 is great! ... well, plus 5 0r 6 each way for the post office...

What piston clearance is advised in a cylinder with the piston treated in that fashion?
Could it be accomplished only by honing out the cylinder with a stone on a drill?

rc
Click to expand...


Yeah, you really can't hone these thing's anyway, the hard chroming they use on the bores isn't much deeper than that. I use a hand applied DFL that goes on a little too thick, maybe thinned and sprayed from an air brush gun you could get it thin enough not to be a problem. The stuff I have is best on gear facing, solid bearings, Wrist pins and crank pins with roller bearings, places like those. I think there's benifits to DFL coating gear teeth, too. Anything there can only help :p.
 
i'll take two to see how well it works. i don't think i have any cores that are worth salvaging. unless you want some tiny ashtrays.
 
between here and the face book pages i got 8 pre orders, thats good enough for me, ill coat up 10 and post the other two up for sale, more details once the pistons get delivered and i can start masking them off for coating.
 
if you would pm me your piston size i would appreciate it, 66cc seem to be the most common, but i dont want to leave out the people with 49cc
 
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