DemonShee Posted November 1, 2005 Report Posted November 1, 2005 I got my stuff in the other day from Odaen. They were ported cylinders by Redline Racing, 795 pistons for 4mil stroker, and 3 sets of domes. Everything looked pretty good. One cylinder had a few wear streaks in it so I will go ahead and do a freshening hone on them both with new rings for the pistons. Thats where I am not sure what to do. The pistons were in a little rougher shape than he thought they would be when he pulled it apart. They have some good scratches on the sides of them in a few spots. Not to the point that they looked ruined tho. Kindo looked like I could take a 3M scotchbrite pad on my die grinder and carefully polish them out. being careful not to overheat or take out too much material. The scratches aslo make the bottom ring tight in the grooves. But I think one cleaned up they will move freely, unless thats how they are on a Shee. So my question is, Is it bad to refinish the pistions and use them again? Or should I just get new pistons? If I do get new, do they have to be modified to work with the porting? Being newer to the 2-smoke world, not as sure what the pistons should look like used. If this was a fourstroke piston, I wouldn't hesitate to clean it up and put it back in. I want to add, Bruce (Odaen) is standing behind what he sold me and if it is determined I should get new pistons, he is going to go halves on the cost with me. THATS AWESOME!! Quote
dawarriorman Posted November 1, 2005 Report Posted November 1, 2005 If it were me I would just get new pistons (well, actually I am right now too). No, you don't have to do anything to the pistons, just throw them in. Quote
bigboybanshee Posted November 1, 2005 Report Posted November 1, 2005 I, personally, would go with new pistons. They're not too terribly expensive and would save you the worries of wondering how they'll hold up. The clearances inside the cylinder are so tight and critical, I wouldn't take a chance at possibly taking too much off of the piston or possibly making it slightly out of round. Especially given that you're going to be honing the cylinders too, it would be a wise idea to go ahead and have a fresh bore done and get the pistons to match the fresh bore. Even if you can get the scratches out of the piston and have the cylinders honed, you'd still be looking at another top end job in the near future, given that you'd be making the piston to cylinder wall clearance bigger than it is now. Might as well go ahead and get it all done up good, rather than have to do it in 6 months to a year. It's just what I would do... I did something similar to what you're talking about doing when I first got my banshee....the bore wasn't in too bad of shape (a little worn but still within spec), so we just put new pistons and rings in there and got 120psi compression, but it only lasted a little under a year because the cylinder bore wore out and it wasn't building enough compression, even though we had the new pistons and rings...so we had to end up tearing it apart again and getting a fresh bore, with another set of pistons. That's really cool of odaen to offer to help you out, not too many people will do that these days; mucho props to him!!!! Quote
locogato11283 Posted November 1, 2005 Report Posted November 1, 2005 hone, new pistons, new rings.. Quote
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