| Author | Message | ||
     Hogs |
Hey guys, A question for those that know, I am installing some new High Compression Pistons and new Rings in a Warrior, The Motor only has like 6,000 miles on it... The cylinders still have the cross hatch from being new, Just wonder since these cylinders HAve the Nicasil coating and do appear to be shinny, is it needed to ball hone the cylinders to rough them up for the new rings to be able to seat proper? Thanks alot..! I would hate to install all only to find out it will smoke since the rings may not seat proper? | ||
| Cycleaddict |
when installing new rings it's always good practice to hone the cylinder. (for a good quick "seating" of the rings) | ||
| Jos51700 |
DO NOT hone Nikasil. The rings will seat on Nikasil regardless of mileage, as the surface doesn't wear, per se (They use a different ring coating). So what you end up with if you hone or ball-hone Nikasil is a cylinder that DOESN'T smoothen up after a few cycles. The rings and piston wear out VERY quickly, whereas in a steel cylinder, everything "polishes" together. Can you provide a photo? Some Nikasil coatings are actually slightly magnetic, so that test is not a sure-fire method. Later-model bikes can even have a sleeve of some unknown "mystery metal" that isn't steel or iron, and Nikasil over that, so it can even look like a sleeve. | ||
| Jos51700 |
I know you said piston*s*, but just to clarify, Warrior streetbike, or Warrior quad? I'll assume streetbike for now.... I love Yamaha (Not). | ||
| Jos51700 |
CycleAddict is right in regards to a steel or iron sleeved cylinder, though. | ||
| Cycleaddict |
nickasel or not , "break" the glazeds surface, at least lightly sand it. 200-400 grit . | ||
| Hogs |
THanks Guys this is on a 2005 Warrior Street bike with Nicasil coating Cylinders, YEah Was on their forum as well, and they say NO to Honing, Just wanted to make sure.. Thanks for the reply...! | ||
| Cycleaddict |
dang, i'm guessing they reccomend against honing due to the thickness (thinness?)of the plating . sorry for the bad info guys, but i'ved "honed" chrome, nickesel, etc.(didn't know better i guess ) because i've learned that quick seating of rings is a good thing & generally produces more H.P. | ||
| Jos51700 |
The Nikasil is so hard, it never smooths up after honing, and the rings wear out WAY prematurely. The rings used in a Nikasil cylinder are different and will seat in just fine without it. The Nikasil does not become glazed, and therefore does not need deglazing. Thick/thinness of plating isn't really a factor. | ||
| Dentfixer |
Honing and de-glazing are two different things. Honing is usually done to finish sizing the cylinder to piston specs. Usually straight stone hones are used. De-glazing is usually done with the ball hones and are only for adding the cross hatch so the rings will seat. I believe you can ball hone into any type cylinder because you are just adding cross hatch, which is very minimally intrusive. It doesn't require much ball honing to get the cross hatch in. I do use the term "usually" because people have their own preferences. Another example is if you're honing a 2-stroke, the balls can catch in the ports and mess up the hone, possibly the port. I was a professional Honda mechanic and we had Nikasil cylinders ball honed often. | ||
| Starter |
To hone or not to hone. My Husky 2T workshop manual calls for a light scuffing with a ball hane, then my suzuki GSXR workshop doesn't mention anything. I have always wondered if I was in fact just prematurely wearing the coating off the barrel of the Husky and the rings since next time I'm in there it always looks freshly honed. The rings are soft anyway so I don't think they would last that much longer but I would be interested if anyone could find some data from Nikasil |
